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HomeMy WebLinkAboutCTB 2017 Fish Community TemplatesFISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site LINCOLN 03050101 35.446963 -81.042733 662 No ANDERSON CR SR 1383 CF62 10/11/17 Good-Fair County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Southern Outer Piedmont 21.7 8 0.3 Wetland Water Barren 1992 75.8 1.0 no data 22.8 no data 0.2 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.2 0.0 2001 62.2 5.3 0.7 25.4 6.5 0.4 0.1 0.0 2006 62.1 6.3 0.8 23.9 7.0 0.4 0.2 0.1 0.4 0.2 0.1 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 60.0 6.3 0.8 24.0 9.0 Specific Conductance (µS/cm)74 80 82 pH (s.u.)6.8 6.3 6.3 Temperature (°C)16.4 19.3 21.5 Dissolved Oxygen (mg/L)8.9 8.1 7.3 Bottom Substrate (15)4 Pool Variety (10)5 Riffle Habitat (16)11 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)15 Left Riparian Score (5)5 Right Riparian Score (5)5 Total Habitat Score (100)65 Bank Erosion (7)1 Bank Vegetation (7)7 Light Penetration (10)7 Water Clarity Clear.Substrates Sand, gravel, and detritus. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 10/11/17 2017-24 14 46 Good-Fair 05/02/12 2012-22 14 50 Good 04/25/07 2007-30 15 48 Good Species Change Since Last Cycle Species gained since 2012 - Green Sunfish (3, non-native, last collected here in 2007), and Eastern Mosquitofish (2, last collected here in 2007). Species lost since 2012 - White Sucker (3 collected here in 2012), Largemouth Bass (1 collected here in 2012). Flat Bullhead were also missing, but have not been collected here since 2007. Data Analysis Watershed - This site drains eastern Lincoln County west of Lake Norman, and is about one mile upstream of the creek's confluence with Killian Creek. Habitat - Mature forested riparians on both sides are providing good shading to the stream. However, evidence of high flows in this catchment exist with severe bank incisions and root exposures along the left bank (a few banks with tall, vertical faces). As noted in 2012, the catchment is characterized by dramatic extremes in flow. Lower quality instream habitats including shallow sandy runs with side snag pools, several small shallow stick riffles, and one long embedded gravel riffle. Overall, habitat conditions appear similar to previous observations here. 2017 - The same number of species and total abundance collected as in 2012, but still no intolerant species were present. The combined loss of Largemouth Bass (intermediately tolerant top predator) and White Sucker (tolerant omnivore) dropped the NCIBI score by 4 points, enough to move the fish bioclassification from Good to Good-Fair. Both of these species are often found in deeper pool complexes, which Anderson Creek is lacking. The 2017 sample was also collected several months later than previous samples, which could influence the success of capture for certain species that move seasonally. 2007-2017 - Overall, the fish community here continues to show trophic stability with moderate diversity and abundance. Despite the slight drop in metric score in 2017, water quality in Anderson Creek remains good. Most Abundant Sp.Speckled Killifish (79, 25%), and Bluehead Chub (78, 25%). Non-Native Sp. Green Sunfish (3), and Redlip Shiner (58, 19%). Species Change Since Last Cycle Species gained since 2012 - White Sucker (11, last collected here in 2007), Redear Sunfish (1, 1st collection here), and Eastern Silvery Minnow (29, 2 were collected here in 1997). Species lost since 2012 - Warmouth (1 collected here in 2012), Greenfin Shiner (2 collected here in 2012), Flat Bullhead (2 collected here in 2012), and White Perch (1 collected here in 2012, likely during a spawning run from Lake Norman). Data Analysis Watershed - This site drains the westernmost tip of Iredell County including the I-40 corridor, and is about 5 miles above the creek's confluence with the Catawba River (headwaters of Lake Norman). Habitat - This reach of Buffalo Shoals Creek exhibits an old mill site and steep bedrock terraced banks on the left, and wide vegetated riparians providing good canopy coverage. Kudzu has become established in the sunlit area near the bridge. Lower quality instream habitats of primarily sandy runs and flats with several bedrock shelf overhangs/undercuts on the left, infrequent pools of various sizes and depths, and one large bedrock/cobble riffle just downstream of the bridge and mill site. 2017 - A moderately diverse and abundant fish community was collected here again in 2017, including one re-gained sucker species, but still no pollution intolerant species. The eight point drop in NCIBI score since the last monitoring cycle was due to a shift in trophic structure towards a higher percentage of omnivores + herbivores (28% in 2012 to 56% in 2017) and fewer insectivores (72% in 2012 to 44% in 2017). This is largely due to the notable increase in Bluehead Chub abundance (intermediate omnivore) from 95 individuals collected in 2012 to 299 in 2017. 1997-2017 - Overall, the NCIBI bioclassification here has dropped 3 ratings over 20 years from Excellent (1997) to Good-Fair (2017). Flow extremes and chronic non-point sedimentation in this catchment (similar to many others in the Catawba basin) are likely contributors to this decline. However, Buffalo Shoals Creek still exhibits good water quality characteristics and other than the Bluehead Chub upsurge, has not changed much since the 2012 survey. Most Abundant Sp.Bluehead Chub (299, 47%).Non-Native Sp. Green Sunfish (3), and Redear Sunfish (1). 04/26/07 2007-33 13 52 Good 06/04/97 97-54 20 58 Excellent 10/12/17 2017-27 16 44 Good-Fair 05/21/12 2012-28 17 52 Good Water Clarity Slightly Turbid Substrates Sand, boulder, bedrock, gravel, and cobble. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)5 Right Riparian Score (5)5 Total Habitat Score (100)79 Bank Erosion (7)7 Bank Vegetation (7)7 Light Penetration (10)7 Bottom Substrate (15)10 Pool Variety (10)6 Riffle Habitat (16)10 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)17 Specific Conductance (µS/cm)80 88 93 pH (s.u.)6.3 6.8 6.5 Temperature (°C)15.9 16.8 19.3 Dissolved Oxygen (mg/L)8.5 7.7 7.4 0.1 0.1 0.2 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 30.9 8.9 1.4 53.6 6.2 2006 31.4 8.9 1.4 53.7 5.6 0.1 0.1 0.2 2001 30.0 8.9 1.4 55.6 5.3 0.1 0.1 0.0 Wetland Water Barren 1992 35.1 2.2 no data 62.4 no data 0.1 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.1 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 13.9 8 0.3 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site IREDELL 03050101 35.753375 -81.044955 815 No BUFFALO SHOALS CR SR 1503 CF3 10/12/17 Good-Fair County 8 digit HUC Latitude Longitude Elevation (ft) Species Change Since Last Cycle Species gained since 2012 - Rainbow Trout (1, last collected here in1997). Species lost since 2012 - Green Sunfish (exotic, 3 collected here in 2012), Bluegill (2 collected here in 2012), Largemouth Bass (1 collected here in 2012), Western Blacknose Dace (1 collected here in 2012), and Flat Bullhead (1 collected here in 2012). One Brown Trout (non-native) was also collected here in 1997, but not since then. Data Analysis Watershed - This site drains southwest McDowell County, including a small portion of the town of Old Fort. Habitats - Moderate quality riparian habitats provide good shading within this sample reach. However, the left bank is only one tree wide for most of the sample reach adjacent to an open field. Incised banks are still evident in a few places outside of channel bends. Instream habitats in the lower sample reach are primarily swift runs, chutes along the bends, and side snag pools. As noted in 2012, the upper reach has several good quality cobble riffles located between runs. The beaver activity observed in 2012 was no longer evident in 2017. Overall, habitat qualities appear to be stable and relatively unchanged since the last basin cycle. 2017 - Good diversity and abundance of the fish community were observed, much like the 1997 and 2002 samples. Four fewer species were collected in 2017 compared to the 2012 assessment, but those species were only represented by 3 or fewer fish in 2012. Still, a shift in trophic structure to a higher percentage of insectivores (44% in 2012 to 62% in 2017) resulted in a 6 point increase in the total NCIBI score, and the site was rated Excellent for the first time. Young of year individuals were collected for 11 of the 16 species present due to the late summer sample date. 1997-2017 - Despite fewer total species present in 2017, the fish community in this headwater Catawba River catchment appears stable, with the highest fish-based water quality rating since the site was first sampled in 1997. Most Abundant Sp.Central Stoneroller (142, 25%)Non-Native Sp. Smallmouth Bass (2), and Rainbow Trout (1) 04/29/02 2002-33 16 46 Good-Fair 05/07/97 97-37 17 50 Good 08/15/17 2017-14 16 54 Excellent 06/07/12 2012-50 20 48 Good Water Clarity Slightly Turbid Substrates Cobble, sand, and silt. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)2 Right Riparian Score (5)5 Total Habitat Score (100)85 Bank Erosion (7)6 Bank Vegetation (7)6 Light Penetration (10)7 Bottom Substrate (15)12 Pool Variety (10)9 Riffle Habitat (16)15 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)18 Specific Conductance (µS/cm)50 59 65 pH (s.u.)6.6 6.7 7.0 Temperature (°C)19.2 16.1 20.0 Dissolved Oxygen (mg/L)6.9 9.4 8.2 0.0 0.0 0.0 Water Quality Parameters 2002 2012 2017 Site Photograph 2011 93.3 3.7 0.7 2.2 0.8 2006 93.3 3.7 0.7 2.2 0.8 0.0 0.0 0.0 2001 93.4 3.7 0.7 2.2 0.6 0.0 0.0 0.0 Wetland Water Barren 1992 97.8 1.6 no data 0.6 no data 0.0 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Eastern Blue Ridge Foothills 12.6 5 0.3 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site MCDOWELL 03050101 35.620346 -82.179044 1412 No CATAWBA R SR 1103 CF6 08/15/17 Excellent County 8 digit HUC Latitude Longitude Elevation (ft) Species Change Since Last Cycle Species gained since 2012 - Fieryblack Shiner (collected here in 2002 and 2007, but not 2012), Sandbar Shiner (1, first collection here), and Brown Trout (collected here in 2002 and 2007, but not 2012). Species lost since 2012 - White Sucker (2 collected here in 2012), Creek Chub (3 collected here in 2012), and Rainbow Trout (1 collected here in 2012). Data Analysis Watershed - This site drains northwest McDowell County and is approximately 0.8 miles upstream of the creek's confluence with the Catawba River. The sample reach was moved about 400 feet upstream to avoid a large beaver pool and also an extensively braided riffle sequence just upstream of the US 70 bridge. Habitats - The vegetated riparians here are generally wide but increasingly dominated by Kudzu, as noted previously. Consequently, the canopy is fairly open in the upper sample reach and allows full sunlight in many areas. High quality instream habitats persist with long, frequent cobble riffles, deep main channel pools with some side snags and root mats. While there is high flow evidence in this lower section of Curtis Creek (shifting rock substrates, braiding, and bar development), instream habitat qualities generally appear similar to previous assessments. 2017 - A relatively diverse and abundant fish community was collected with a similar species composition as in 2012. Seven of 15 species collected were also represented by young of year cohorts. The proliferation of the herbivorous Central Stoneroller (13% of the total in 2012, and 40% of the total in 2017), and to a lesser extent, the lack of top predators has caused a slight trophic shift and resulted in a lower NCIBI metric score and rating at this regional reference site. 2002-2017 - Overall, water quality remains Good in this primarily forested watershed, but an increasingly sunny stream bed in the lower reaches seems to be affecting the fish community, which now appears to be dominated by the tolerant, algae-grazing Central Stoneroller. Most Abundant Sp.Central Stoneroller (242, 40%).Non-Native Sp. Smallmouth Bass (4), Brown Trout (1). 05/24/07 2007-68 20 60 Excellent 04/30/02 2002-34 19 60 Excellent 08/16/17 2017-15 15 52 Good 06/07/12 2012-49 15 56 Excellent Water Clarity Clear Substrates Cobble, boulder, sand, silt, and bedrock. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)5 Right Riparian Score (5)4 Total Habitat Score (100)87 Bank Erosion (7)7 Bank Vegetation (7)7 Light Penetration (10)5 Bottom Substrate (15)14 Pool Variety (10)6 Riffle Habitat (16)15 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)19 Specific Conductance (µS/cm)21 18 23 pH (s.u.)6.1 5.5 6.7 Temperature (°C)17.5 15.0 19.7 Dissolved Oxygen (mg/L)8.2 9.0 7.6 0.0 0.0 0.0 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 96.6 2.1 0.1 0.5 0.9 2006 97.1 2.1 0.1 0.5 0.4 0.0 0.0 0.0 2001 97.1 2.1 0.1 0.5 0.4 0.0 0.0 0.0 Wetland Water Barren 1992 100.0 0.0 no data 0.0 no data 0.0 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Eastern Blue Ridge Foothills 16.6 7 0.5 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site MCDOWELL 03050101 35.645000 -82.159167 1398 Yes CURTIS CR US 70 CF112 08/16/17 Good County 8 digit HUC Latitude Longitude Elevation (ft) Species Change Since Last Cycle Species gained since 2012 - None. Species lost since 2012 - None. Data Analysis Watershed - This site drains eastern Burke County including the I-40 and US-70 corridors and is approximately 1.7 miles upstream of the creek's confluence with the Catawba River (Lake Hickory). Habitat - Vegetative riparians are good quality here (mostly mature trees) and provide plenty of canopy shading to the stream. The right bank flood plain is mowed between trees (church property), but still intact and providing coverage. The stream channel is fairly entrenched, with some eroding banks at the bends. Instream habitats are low to moderate quality and include mostly sand and cobble runs, with some side undercuts and bedrock outcrop shelves (slides, plunges, and chutes). No obvious changes in habitat qualities were noted since 2012. 2017 - The same fish species were collected in 2017 as in 2012, with no top predators and no intolerants present. However, the trophic structure over the last 5 years has shifted slightly toward more omnivores and herbivores (47% in 2017 vs. 26% in 2012), and fewer insectivores (53% in 2017 vs. 74% in 2012). As a result, the NCIBI score dropped 4 points, just enough to cause a drop in the fish-based rating to Fair. 2007-2017 - Overall, this low diversity fish community has remained relatively unchanged over three basin cycles, with 10 of the 12 known species present in 2017 (Largemouth Bass and Bluegill were collected in 2007, but not in 2012 or 2017). This site was resampled in 2018 to confirm the 2017 Fair rating. A similar species assemblage (10 of the 12 known species, including Bluegill) were collected, and once again the stream rated Fair with an identical NCIBI score (40). Most Abundant Sp.Bluehead Chub (130, 47%). Non-Native Sp. None. 05/21/07 2007-56 12 44 Good-Fair 09/19/17 2017-18 10 40 Fair 10/09/12 2012-96 10 44 Good-Fair Water Clarity Slightly Turbid.Substrates Sand, bedrock, and silt. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)5 Right Riparian Score (5)3 Total Habitat Score (100)70 Bank Erosion (7)6 Bank Vegetation (7)5 Light Penetration (10)9 Bottom Substrate (15)8 Pool Variety (10)10 Riffle Habitat (16)3 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Specific Conductance (µS/cm)43 51 pH (s.u.)5.8 5.9 50 6.1 Temperature (°C)14.4 17.9 Dissolved Oxygen (mg/L)10.1 8.6 12.7 9.2 0.0 0.0 0.1 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 35.0 36.5 7.8 20.2 8.2 2006 35.9 36.4 7.7 20.4 7.2 0.0 0.0 0.1 2001 37.4 35.8 7.5 21.0 5.8 0.0 0.0 0.0 Wetland Water Barren 1992 49.4 24.1 no data 26.3 no data 0.0 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.1 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 14.7 7 0.5 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site BURKE 03050101 35.746491 -81.416013 962 No DROWNING CR SR 1647 CF72 09/19/17 Fair County 8 digit HUC Latitude Longitude Elevation (ft) Species Change Since Last Cycle Species gained since 2012 - Bluegill (4, first collections here). Species lost since 2012 - Green Sunfish (exotic, 2 collected here in 2012), and Flat Bullhead (1 collected here in 2012). White Sucker was last collected here in 2007, but is likely still present in the watershed. Seagreen Darter (intolerant insectivore) were last observed here in 2002. Data Analysis Watershed - This site drains the northeast part of the Brushy Mountains in western Alexander and eastern Caldwell Counties and is about 4.5 miles upstream of the creek's confluence with the Middle Little River. Habitats - The vegetated riparian corridor here provides moderate to good canopy coverage and shading to the stream. However, the bank on the right side of the stream is only one tree wide in several areas where the stream abuts pasture land. Moderate quality instream habitats include gravel/sand runs with side snag pools, occasional log plunges, and a few long skinny riffles. There are several incised areas along both banks, and other evidence of channel migration including bank failure/caving, bar formations, and several trees in the stream channel. Overall, physical habitats appear relatively unchanged here since 2012. 2017 - The fish community continues to exhibit naturally low diversity and abundance here with the Bluehead Chub (intermediately tolerant omnivore) maintaining numerical dominance over the last two basin cycles. 1993-2017 - Much like many other streams within the Little River watershed, the fish community here remains relatively species poor. Naturally low diversity and fish migration obstructions (dams) are likely contributors. However, the overall species composition has remained consistent at this location over most of the 6 fish community assessments completed here. Accordingly, both the NCIBI scores and water quality ratings have also remained consistent, with fish-based water quality ratings of Good-Fair over the last two cycles. Most Abundant Sp.Bluehead Chub (109, 42%). Non-Native Sp. None. 05/08/97 97-40 10 48 Good 05/11/93 93-20 10 40 Fair 04/26/07 2007-35 11 48 Good 05/23/02 2002-60 10 48 Good 10/10/17 2017-23 10 44 Good-Fair 05/22/12 2012-33 11 44 Good-Fair Water Clarity Slightly Turbid.Substrates Sand, gravel, and cobble. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)5 Right Riparian Score (5)2 Total Habitat Score (100)67 Bank Erosion (7)2 Bank Vegetation (7)5 Light Penetration (10)8 Bottom Substrate (15)8 Pool Variety (10)9 Riffle Habitat (16)7 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Specific Conductance (µS/cm)38 45 45 pH (s.u.)6.3 6.3 6.3 Temperature (°C)18.3 17.5 20.4 Dissolved Oxygen (mg/L)9.1 7.9 5.6 0.0 0.0 0.1 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 82.3 3.1 0.3 10.5 4.1 2006 83.4 3.1 0.3 10.6 2.9 0.0 0.0 0.1 2001 83.3 3.1 0.3 10.8 2.8 0.0 0.0 0.1 Wetland Water Barren 1992 94.3 0.0 no data 5.7 no data 0.0 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 14.5 6 0.3 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site ALEXANDER 03050101 35.917778 -81.312778 1116 No DUCK CR NC 90 CF13 10/10/17 Good-Fair County 8 digit HUC Latitude Longitude Elevation (ft) 04/25/07 2007-32 11 40 Fair Species Change Since Last Cycle Species gained since 2012 - Green Sunfish (49, first collections here), Redear Sunfish (1, last collected here in 2007), Flat Bullhead (2, first collections here), and Carolina Fantail Darter (1, last collected here in 2007). Species lost since 2012 - Warmouth (2 collected in 2012). Data Analysis Watershed - This location drains eastern Lincoln County (just west of NC 16 and Lake Norman, and south of NC 73), and is about 1.7 miles upstream of the creek's confluence with Killian Creek (a tributary of Dutchman's Creek and ultimately the Catawba River, south of Mountain Island Lake). The fish site is immediately adjacent to the Lincoln County Sewer System Lift Station #15 where the Forney Creek package wastewater treatment plant was previously located before being mothballed in 2013. Habitats - Good forested riparians exist on both sides, providing good canopy shading and cover to the stream. Much like other Killian Creek tributaries, the channel here meanders and is filled with shifting sandy substrates and relatively uniform depths throughout. Accordingly, the instream habitats are lower quality here and almost entirely shallow sandy runs with small shallow side snag/stick pools. No deep pools or riffles were observed throughout the sample reach. 2017 - A low to moderately diverse fish community was collected with 3 more total species collected than in 2012 or 2007. However, several NCIBI metrics (5 of 12) continue to show an imbalanced fish community that is lacking any intolerant species or sucker species, and thus a skewed trophic structure (99% insectivores). With the arrival of the Green sunfish, the percentage of pollution tolerant species went from 30% in 2012 to 50% in 2017. However, the NCIBI score increased by two points because of an increase in overall abundance (103 collected in 2012, 183 in 2017), including an additional darter species (Carolina Fantail Darter, n=1), just enough to push the 2017 rating to Fair. 2007-2017 - Sedimentation and extremes in hydrologic flow in this relatively small watershed continue to influence the quality and function of instream habitats here. It appears that Green Sunfish have displaced/suppressed the majority of all other sunfish species (most notably, Bluegill), as this introduced species is tolerant to pollution and readily outcompetes other less dominant species in stressed systems. Although the NCIBI score has improved just enough to rate the site Fair in 2017, the fish community in this small sandy watershed remains habitat-limited and may be shifting accordingly. Most Abundant Sp.Tessellated Darter (50, 27%), and Green Sunfish (49, 27%). Non-Native Sp. Green Sunfish (49), Redear Sunfish (1), and Redlip Shiner (1). 10/11/17 2017-25 14 36 Fair 05/02/12 2012-23 11 34 Poor Water Clarity Clear.Substrates Sand, and leaf litter. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)4 Right Riparian Score (5)5 Total Habitat Score (100)54 Bank Erosion (7)6 Bank Vegetation (7)6 Light Penetration (10)10 Bottom Substrate (15)3 Pool Variety (10)4 Riffle Habitat (16)0 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)11 Specific Conductance (µS/cm)164 180 148 pH (s.u.)7.1 7.1 6.8 Temperature (°C)21.1 19.1 21.3 Dissolved Oxygen (mg/L)8.2 7.9 7.6 0.5 0.3 0.0 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 52.0 28.1 8.2 9.5 9.6 2006 54.8 24.3 6.5 10.9 9.1 0.5 0.3 0.0 2001 60.0 17.9 4.5 12.4 8.9 0.6 0.1 0.1 Wetland Water Barren 1992 86.0 1.9 no data 11.4 no data 0.4 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.3 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Southern Outer Piedmont 7.9 5 0.2 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site LINCOLN 03050101 35.447382 -81.010887 673 No FORNEY CR SR 1386 CF63 10/11/17 Fair County 8 digit HUC Latitude Longitude Elevation (ft) FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site ALEXANDER 03050101 35.853337 -81.183432 919 No GLADE CR SR 1610 CF64 09/20/17 Good County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 12.7 5 0.3 Wetland Water Barren 1992 47.1 4.4 no data 48.2 no data 0.1 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.2 0.0 2001 32.1 15.0 4.0 47.0 5.7 0.2 0.1 0.0 2006 32.6 15.6 4.3 46.1 5.5 0.2 0.1 0.0 0.2 0.1 0.0 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 32.1 15.9 4.4 45.5 6.3 Specific Conductance (µS/cm)49 60 63 pH (s.u.)6.5 6.9 6.1 Temperature (°C)16.7 19.3 18.1 Dissolved Oxygen (mg/L)9.5 7.4 8.9 Bottom Substrate (15)8 Pool Variety (10)6 Riffle Habitat (16)7 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Left Riparian Score (5)2 Right Riparian Score (5)3 Total Habitat Score (100)69 Bank Erosion (7)6 Bank Vegetation (7)6 Light Penetration (10)10 Water Clarity Clear.Substrates Bedrock, sand, and silt. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 09/20/17 2017-21 12 50 Good 05/21/12 2012-30 15 58 Excellent 04/26/07 2007-34 14 54 Excellent Species Change Since Last Cycle Species gained since 2012 - Fieryblack Shiner (1, intolerant, last collected here in 2007). Species lost since 2012 - Notchlip Redhorse (1 collected in 2012), Largemouth Bass (1 collected in 2012), Mountain Redbelly Dace (2 collected in 2012), and Carolina Fantail Darter (3 collected in 2012). Data Analysis Watershed - This site drains the southeastern portion of Taylorsville and part of the US 64 corridor in south-central Alexander County, and is about 1/4 mile upstream of the creek's confluence with the Lower Little River. Two dams on the Lower Little River border the mouth of Glade creek (Millersville Dam and North State Dam), inhibiting fish movements into and out of the catchment. Habitats - Moderate quality riparians here provide good canopy shading to the stream. Moderate to lower quality instream habitats persist as well, including shallow sandy/bedrock runs with bedrock riffles and plunges, and a few side snag pools at channel bends. At mid sample reach, livestock continue to have cross-channel access. 2017 - Four fewer species were collected in 2017, but the sample still included two intolerant species [Fieryblack Shiner (n=1), and Highback Chub (n=7)]. Total abundance of the fish community is similar to previous basin assessments as well, but remains relatively low compared to regional reference sites. The non-native Redlip Shiner (species that has displaced the native Greenhead Shiner) continues to maintain a stronghold in this catchment. If the one captured Largemouth Bass (72 mm TL, young-of- year) had been a year-one fish (100 mm TL or greater), the NCIBI score would have gone up 6 points, yielding an Excellent bioclassification. 2007-2017 - Glade Creek continues to support a relatively healthy and stable, low diversity fish community despite the presence of impoundment structures close to the creek's mouth and downstream. Notwithstanding the minor decline in the NCIBI score and rating at this location, water quality here continues to be Good, with no apparent new issues. Most Abundant Sp.Bluehead Chub (110, 32%).Non-Native Sp. Redlip Shiner (23%). FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site BURKE 03050101 35.816651 -81.747872 1026 No IRISH CR SR 1439 CF22 09/18/17 Fair County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 32.0 8 0.5 Wetland Water Barren 1992 96.3 0.0 no data 3.2 no data 0.1 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.4 2001 85.5 3.8 0.3 6.4 4.1 0.1 0.0 0.1 2006 84.0 3.8 0.3 6.0 6.1 0.1 0.0 0.1 0.1 0.0 0.1 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 77.2 3.8 0.3 5.6 13.3 Specific Conductance (µS/cm)37 37 39 pH (s.u.)6.0 6.3 6.1 Temperature (°C)18.6 19.5 18.0 Dissolved Oxygen (mg/L)9.4 8.3 8.8 Bottom Substrate (15)3 Pool Variety (10)10 Riffle Habitat (16)2 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Left Riparian Score (5)0 Right Riparian Score (5)3 Total Habitat Score (100)48 Bank Erosion (7)3 Bank Vegetation (7)3 Light Penetration (10)3 Water Clarity Clear.Substrates Sand, gravel, cobble, and silt. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 09/18/17 2017-17 14 38 Fair 05/24/12 2012-41 15 44 Good-Fair 05/22/07 2007-61 21 54 Excellent 07/30/03 2003-48 13 40 Fair Species Change Since Last Cycle Species gained since 2012 - Striped Jumprock (2, last collected in 2007), Warmouth (1, last collected in 2007), and Flat Bullhead (1, first collection here). Species lost since 2012 - V-lip Redhorse (3 collected in 2012), Green Sunfish (non-native, 3 collected in 2012), Smallmouth Bass (collected during all 4 previous samples here), Greenfin Shiner (in 3 of 4 previous samples here including 26 in 2012), and Yellow Perch (in 3 of 4 previous samples here). Data Analysis Watershed - This mountain watershed lies within the Pisgah National Forest and drains north-central Burke County, with its headwaters adjacent to the Linville Gorge catchment. This lower valley site is located about one mile upstream of the creek's confluence with Warrior Fork (a trib to the Catawba River) and is bordered by a tree farm and row crops. The NCWRC Coolwater Table Rock Fish Hatchery is located about 7 river miles upstream. Habitat - Narrow riparian widths provide modest canopy shading to the stream here with banks mainly vegetated in bamboo, shrubs, and grasses. Several areas on the left side with recent bank failures, presumably following high flow events. The lower quality instream habitats here consist of swift sandy runs with loose sandy substrates and side pools of various sizes and depths. Riffles are mostly absent, with just a few small stick riffles located in the sample reach. 2017 - The fish community presented very low abundances and low to moderate species richness [3 sucker species, 4 sunfish species, 4 minnow species, 1 catfish, and only 1 common darter species (Tessellated Darter)]. A lack of riffle habitats in this entrenched reach most certainly contributes to the lack of darters observed (two intolerant darter species were collected here in 2007, Seagreen Darter and Piedmont Darter). Most species showing low numbers and the percentage of species with multiple age classes was also low, indicating low recruitment. 2007-2017 - Fish-based ratings have fluxuated quite a bit here over the course of 15 years. Accordingly, this site was re-sampled in 2018 (7/3/2018) for 2017 rating verification. Only 10 species and a total of 38 fish were collected in 2018, the lowest numbers collected here by DWR staff to date. A notable chemical smell was present during the 2018 fish sampling event, likely due to a recent application at the adjacent tree farm. However, the NCIBI score and rating was identical to the results from 2017 (NCIBI score of 38 and a bioclassification of Fair, respectively). Biological monitoring in this catchment should continue here to determine if the low fish community richness observed in 2017 and 2018 are correlated to any other biological results from this catchment, such as benthic macroinvertebrates. Most Abundant Sp.Tessellated Darter (15, 26%).Non-Native Sp. Rock Bass (1). 05/02/02 2002-42 17 38 Fair FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site LINCOLN 03050101 35.454187 -81.033716 691 No KILLIAN CR NC 73 CF25 10/11/17 Fair County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Southern Outer Piedmont 12.4 6 0.1 Wetland Water Barren 1992 79.8 2.3 no data 16.3 no data 1.2 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.1 0.2 2001 63.9 12.2 1.8 17.1 5.3 0.9 0.1 0.5 2006 61.4 15.4 2.3 15.4 6.1 0.9 0.1 0.6 0.9 0.1 0.6 Water Quality Parameters 2012 2013 2017 Site Photograph 2011 59.2 16.0 2.5 15.1 8.0 Specific Conductance (µS/cm)136 154 230 pH (s.u.)6.9 6.7 7.0 Temperature (°C)21.1 18.3 23.8 Dissolved Oxygen (mg/L)6.9 8.7 7.3 Bottom Substrate (15)3 Pool Variety (10)4 Riffle Habitat (16)0 Habitat Assessment Scores (max score)2017 Channel Modification (5)4 Instream Habitat (20)10 Left Riparian Score (5)2 Right Riparian Score (5)2 Total Habitat Score (100)45 Bank Erosion (7)6 Bank Vegetation (7)4 Light Penetration (10)10 Water Clarity Clear.Substrates Sand, gravel, and detritus. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 10/11/17 2017-26 10 40 Fair 05/29/13 2013-33 9 36 Fair 05/02/12 2012-24 9 36 Not Rated 04/25/07 2007-31 14 52 Good Species Change Since Last Cycle Species gained since 2012/2013 - Largemouth Bass (2, last collected here in 1997), Flat Bullhead (1, last collected here in 2007), and Carolina Fantail Darter (5, also collected here in 2012 but missing in 2013). Species lost since 2012/2013 - Bluegill (4 collected in 2012 and 2013), and Redlip Shiner (5 collected here in 2012, 1 collected here in 2013). Data Analysis Watershed - Drains part of southeastern Lincoln County and lies between Anderson and Forney Creeks. Killian Creek is a tributary to Dutchman's Creek with their confluence located about five miles downstream in northeast Gaston County. The upstream catchment here is mostly forested, but also includes a 500+ acre residentially developed golf course about 1 mile upstream. Habitat - Vegetated riparian zones are thin here on both sides, and are flanked by planted fields within the flood plain. Instream habitat qualities remain very low with almost 100% shallow (ankle deep) sandy runs and infrequent woody snag pools at bends where maximum depths occur (0.5m). Very little gravel is mixed in with shifting sands. Banks are often vertical in this entrenched portion of Killian Creek. Specific Conductance showed another new high in 2017, with non-point contributions from urbanization and extremes in hydrologic flow as contributing factors. No obvious changes in physical habitats since the last basin cycle. 2017 - The fish community here is moderately diverse, but still shows trophic imbalance towards a high percentage of insectivores (still dominated by the insectivorous Speckled Killifish, 78%), and no pollution intolerant species present. Two age 1 Largemouth Bass (last collected here in 1997) were collected in 2017 despite the very rare shallow pool habitats present. 1997-2017 - The fish community at this location is clearly dominated by Speckled Killifish (intermediate insectivore that prefers clear shallow sandy habitats), but has retained a fairly stable species diversity. The specific conductance measured here has steadily increased with each cycle, and does seem quite high for a stream with no permitted dischargers upstream. Overall, the NCIBI indicates a stable, yet trophically altered fish community with two consecutive NCIBI ratings of Fair. Most Abundant Sp.Speckled Killifish (195, 78%).Non-Native Sp. None. 05/21/02 2002-49 10 46 Good-Fair 05/20/97 97-47 16 52 Good FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site ALEXANDER 03050101 35.945923 -81.251191 1100 No LAMBERT FK SR 1317 CF65 10/10/17 Good-Fair County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 10.5 6 0.3 Wetland Water Barren 1992 90.8 0.0 no data 9.0 no data 0.1 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.0 2001 80.9 3.2 0.3 12.6 3.1 0.2 0.0 0.0 2006 80.8 3.3 0.3 12.5 3.2 0.2 0.0 0.0 0.2 0.0 0.0 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 80.1 3.3 0.4 12.4 3.9 Specific Conductance (µS/cm)27 38 45 pH (s.u.)6.7 6.1 6.3 Temperature (°C)18.3 16.9 19.2 Dissolved Oxygen (mg/L)8.8 7.7 6.6 Bottom Substrate (15)3 Pool Variety (10)8 Riffle Habitat (16)10 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)14 Left Riparian Score (5)5 Right Riparian Score (5)5 Total Habitat Score (100)72 Bank Erosion (7)5 Bank Vegetation (7)7 Light Penetration (10)10 Water Clarity Slightly Turbid.Substrates Sand, bedrock, and gravel. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 10/10/17 2017-22 11 44 Good-Fair 05/22/12 2012-32 9 44 Good-Fair 04/26/07 2007-36 9 46 Good-Fair Species Change Since Last Cycle Species gained since 2012 - Flat Bullhead (1, last collected here in 2007), and Carolina Fantail Darter (3, also last collected here in 2007). Species lost since 2012 - None. Data Analysis Watershed - This site location on Lambert Fork drains northwest Alexander County (including the southeast facing Brush Mountains), and is about 1.2 miles upstream of the creek's confluence with the Lower Little River. Habitats - The riparians here are wide and forested on both sides, proving adequate shading and instream cover. Instream habitat types within this entrenched channel include primarily shifting sandy runs, side snag pools at channel bends, infrequent embedded gravel riffles, and a few bedrock veins. Tree debris noted in the 2012 assessment was still present in the channel in 2017. Overall, there are no noticeable habitat changes since 2012. 2017 - All species collected in 2012 were present in 2017 (plus an additional 2 species, see below), and the total count of fish was consistent with the previous 2 assessments. The fish community here continues to be dominated by the intermediately tolerant omnivore, Bluehead Chub (49%). The intolerant Highback Chub (insectivorous species) comprised about 7.5% of the sample. Seven of 11 species collected in 2017 were also represented by young of year cohorts (indicating good recruitment/reproduction), and no disease was observed. 2007-2017 - Overall, the fish community of Lambert Fork appears to be relatively unchanged compared to the 2012 basin assessment, with three consecutive fish-based water quality ratings of Good-Fair. Most Abundant Sp.Bluehead Chub (166, 49%). Non-Native Sp. None. Species Change Since Last Cycle Species gained since 2012 (all first DWR collections at this site) - Northern Hogsucker (2), Warmouth (1), and Flat Bullhead (1). Species lost since 2012 - Green Sunfish (non-native, 1 collected in 2012). Data Analysis Watershed - This site drains southwest Burke County and is approximately 5 miles upstream of the creek's confluence with the Catawba River. Habitats - Good forested riparians on both sides provide good shading, except for one full sun area in the upper sample reach where the channel is shifting/widening with caving banks and several large fallen trees in the stream. As noted previously, the stream channel is entrenched and meandering, with bank incisions and loose substrates throughout. Accordingly, the lower quality instream habitats include shifting sandy runs, side snags, blowout pools, and log/stick riffles. 2017 - As seen in previous assessments, the fish community here is showing good diversity (including 3 new species records in 2017) but only moderate abundance (205 total fish). Seven of the 18 species collected in 2017 were represented by only one individual. One of these species, Piedmont Darter (Percina crassa, intolerant), has been collected here during all fish community assessments since 2002. Only 5 of the 18 species collected in 2017 included young of year fish, and the percentage of species with multiple ages dropped slightly (75% in 2012 to 44% in 2017). However, an increase in the percentage of insectivores (from 44% in 2012 to 51% 2017), and the drop in percent omnivores + herbivores (56% in 2012 to 49% in 2017) helped to raise the overall NCIBI score by 2 points. 2002-2017 - Overall, the fish community of Silver Creek appears to be relatively stable and trophically balanced, notwithstanding consistently low abundances. This fish community site has maintained an NCIBI rating of Good over the last three basin cycles. Most Abundant Sp.Bluehead Chub (77, 38%), Greenhead Shiner (33%).Non-Native Sp. None 05/22/07 2007-62 13 50 Good 05/01/02 2002-39 19 60 Excellent 09/19/17 2017-20 18 50 Good 05/25/12 2012-42 16 48 Good Water Clarity Clear.Substrates Sand, gravel, and cobble. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating Left Riparian Score (5)4 Right Riparian Score (5)5 Total Habitat Score (100)71 Bank Erosion (7)0 Bank Vegetation (7)6 Light Penetration (10)9 Bottom Substrate (15)8 Pool Variety (10)8 Riffle Habitat (16)10 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Specific Conductance (µS/cm)50 55 64 pH (s.u.)6.3 6.6 6.4 Temperature (°C)18.6 17.4 19.7 Dissolved Oxygen (mg/L)8.7 8.0 8.7 0.4 0.1 0.2 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 58.6 14.5 1.3 15.2 11.1 2006 58.5 14.5 1.3 15.4 11.0 0.3 0.1 0.2 2001 59.7 14.5 1.2 15.6 9.7 0.3 0.1 0.2 Wetland Water Barren 1992 87.1 1.0 no data 11.5 no data 0.3 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.1 0.0 Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) None ------ Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 26.2 7 0.3 FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site BURKE 03050101 35.697963 -81.762942 1039 No SILVER CR SR 1149 CF51 09/19/17 Good County 8 digit HUC Latitude Longitude Elevation (ft) FISH COMMUNITY SAMPLE Waterbody Location Station ID Date Bioclassification Reference Site CALDWELL 03050101 35.896149 -81.421808 1172 No UPPER LITTLE R SR 1712 CF66 09/19/17 Good-Fair County 8 digit HUC Latitude Longitude Elevation (ft) Upstream NPDES Dischargers (≥ 1 MGD or < 1 MGD and within 1 mile)NPDES Number Volume (MGD) Gateway School, Caldwell County NC0041157 0.004 Level IV Ecoregion Drainage Area (mi2)Stream Width (m)Stream Depth (m) Northern Inner Piedmont 11.2 5 0.2 Wetland Water Barren 1992 88.7 2.9 no data 8.4 no data 0.0 Landuse (%)Forest Developed Impervious Cultivation Grass/Herb/Shrub 0.0 0.0 2001 72.4 8.8 0.8 12.6 6.2 0.0 0.0 0.0 2006 71.7 8.8 0.8 12.4 7.0 0.0 0.0 0.0 0.0 0.0 0.0 Water Quality Parameters 2007 2012 2017 Site Photograph 2011 70.1 8.8 0.8 12.1 8.9 Specific Conductance (µS/cm)40 46 47 pH (s.u.)6.3 6.5 6.3 Temperature (°C)16.7 19.3 17.8 Dissolved Oxygen (mg/L)9.7 8.3 8.8 Bottom Substrate (15)8 Pool Variety (10)4 Riffle Habitat (16)12 Habitat Assessment Scores (max score)2017 Channel Modification (5)5 Instream Habitat (20)16 Left Riparian Score (5)5 Right Riparian Score (5)5 Total Habitat Score (100)69 Bank Erosion (7)0 Bank Vegetation (7)6 Light Penetration (10)8 Water Clarity Clear Substrates Sand, gravel, and cobble. Sample Date Sample ID Species Total NCIBI Score NCIBI Rating 09/19/17 2017-19 10 46 Good-Fair 05/22/12 2012-34 11 48 Good 04/27/07 2007-38 10 46 Good-Fair Species Change Since Last Cycle Species gained since 2012 - Green Sunfish (exotic, first collection here). Species lost since 2012 - White Sucker (2 collected in 2012), and Bluegill (1 collected in 2012). Data Analysis Watershed - This site drains east central Caldwell County (including some of the southeastern slopes of the Brushy Mountains) and is located several river miles upstream of Lake Hickory. Habitats - Moderate quality riparian corridor and lower quality instream habitats consisting primarily of shallow sandy runs, embedded gravel riffles, and shallow pools. The stream channel here is deeply entrenched and sediment filled, with bar development and commonly incised banks in various stages of failure/caving. Bedrock shelves and plunges are no longer present as noted in 2012. 2017 - As seen here during past monitoring cycles, species diversity was low, yet total abundance of the fish community was quite high in 2017 (944). The number of dominant Bluehead Chub (intermediately tolerant omnivore) almost doubled in 2017 (178 in 2012 vs. 335 in 2017). A lack of deeper pool habitats continues to exclude predatory species in this part of the catchment, and once again no intolerant species were collected here. However, 8 of the 10 species collected in 2017 included young of year cohorts, indicating good reproduction. Moreover, if just one White Sucker had been collected in 2017, the overall NCIBI score and rating would have remained the same as in 2012. 2007-2017 - Overall, the fish community in the Lower Little River appears to be stable despite its low species diversity. Extremes in hydrologic flows and sedimentation may be contributing to the seemingly natural low species diversity in the Upper Little River catchment, but otherwise water quality appears good. Most Abundant Sp.Bluehead Chub (335, 35%).Non-Native Sp. Green Sunfish (1).