Freshwater Fisheries Annual Report 2014 Appendices
Total Page:16
File Type:pdf, Size:1020Kb
APPENDIX A Stream Electrofishing Survey Data (2014) This section of the report includes stream survey data completed by the Bureau of Freshwater Fisheries in 2014. All surveys, unless specifically noted otherwise, are sampled in accordance to the Bureau’s established stream sampling protocol which is consistent with EPA’s Rapid Bioassement Protocol for Wadeable Streams. The Bureau’s wadeable stream survey protocol can be found in Appendix A. The Bureau also assesses in-stream and riparian conditions by performing a Habitat Assessment at the time of each survey. This assessment is consistent with the EPA Rapid Bioassessment sampling habitat assessment protocol with regional modifications (Appendix B). Basic water quality parameters are also measured. Surveys are listed alphabetically by stream name within identified watershed areas. Each survey is identified by the specific Activity by which it was funded. It is important to note, however, the use of established stream sampling protocols permits data to be used beyond the specific Activity for which they were collected. Data provided for the purposes of this report is only a summary of the individual stream survey data collected by the DFW’s Bureau of Freshwater Fisheries. All stream data collected under the Bureau’s standardized sampling protocol is entered into the Division’s FishTrack database. Appendix A of Investigations and Management of NJ’s Freshwater Fisheries Resources (2014) A-1 2014 Stream Electrofishing Survey Data Surveys in the Upper Delaware Region (Upper Delaware & Wallkill) BEAR BROOK (AKA DARK MOON BROOK) Project: Wild Trout Stream Reg. Assessment Drainage: Pequest River Location: Rt. 612 County: Warren Date: August 25, 2014 Municipality: Frelinghuysen Twp. Summary: Bear Brook (a.k.a. Dark Moon Brook) has been regulated as a Wild Trout Stream since the adoption of this special regulation in 1990. In 2014 this stream was surveyed to assess the wild trout population. This brook, a tributary to Bear Creek, has mucky substrate, high alkalinity (195 MG/L), and in-stream habitat similar to Bear Creek (also surveyed in 2014). A total of 24 wild Brook Trout were captured (16 young-of-the-year and 8 older fish). The largest of these was 294 mm (11.6 in). Other species present included Blacknose Dace, Tessellated Darter, White Sucker, Creek Chub, American Eel, Bluegill, Sea Lamprey, and the non-native Green Sunfish. Larger Brook Trout and suckers were observed in a large pool below the Rt.612 bridge, but unfortunately this pool could not be included in the 150 m section surveyed because it was un-wadeable (too wide and deep to effectively sample). When this stream was last sampled 10 years ago, just upstream from the 2014 survey site, significantly more large Brook Trout were present (71 individuals, 127 – 298 mm long, plus 1 young-of- the-year) due to the presence of deeper pools. Recommendations: This data (and data from surveys previously conducted on trout production streams statewide) will be used to determine if the Wild Trout Stream regulation should be modified and/or if new regulations for wild trout are warranted. This stream should be periodically monitored in accordance with the established schedule (every five years for a Wild Trout Stream). Water Chemistry & Habitat Water Dissolved Alkalinity Specific Sample Habitat Temperature Oxygen pH (as CaCO3) Conductance Length Assessment Score 16.7°C 7.45 mg/L 7.64 195 mg/L 515.5 S/cm 150 m 143 (suboptimal) Fish Species Number Fish Species Number Sea Lamprey 4 White Sucker 4 American Eel 23 Green Sunfish 5 Eastern Mudminnow 15 Pumpkinseed 4 Redfin Pickerel 34 Tessellated Darter 15 Creek Chub 3 Brook Trout (y-o-y) 16 (67 – 125 mm) Blacknose Dace 13 Brook Trout (older than y-o-y) 8 (187 – 294 mm) Appendix A of Investigations and Management of NJ’s Freshwater Fisheries Resources (2014) A-2 2014 Stream Electrofishing Survey Data BEAR CREEK Project: Wild Trout Stream Reg. Assessment Drainage: Pequest River Location: Bear Creek Road (2nd downstream bridge) County: Warren Date: August 29, 2014 Municipality: Frelinghuysen Twp. Summary: Bear Creek has been regulated as a Wild Trout Stream since the inception of this special regulation in 1990. In 2014 this stream was surveyed at two locations to assess the wild trout population. This low gradient stream flows through swamp land in a broad, rolling valley before entering the Pequest River upstream of Great Meadows. Although regulated as a Wild Trout Stream, trout reproduction (i.e. presence of young-of-the-year trout) has never been documented in this stream despite the presence of wild Brook Trout age 1 and older. The stream’s mucky bottom substrate and high alkalinity (189 mg/L) is a natural condition and not the result of human activity, but rather a reflection of its geology (underlain with carbonate rock) and glacial origin. These stream characteristics are unusual compared to most wild trout/trout production streams in New Jersey, which are typically higher gradient, freestone streams having rocky substrate and low alkalinities (<50 mg/L). The following summarizes data collected at the downstream survey location: Although the instantaneous water temperature was quite cold at 15.4°C (59.7°F) and conducive for trout survival, only one Brook Trout, measuring 210 mm (8.3 in), was encountered in this survey. Two native species commonly found in swampy north Jersey streams, Redfin Pickerel and Eastern Mudminnow, along with Tessellated Darter, were the most abundant species encountered in this survey. Other fish species present included Blacknose Dace, White Sucker, Creek Chub, Sea and Brook Lampreys, Pumpkinseed, and Green Sunfish, a non-native species. Recommendation: This data (and data from surveys previously conducted on trout production streams statewide) will be used to determine if the Wild Trout Stream regulation should be modified and/or if new regulations for wild trout are warranted. Water Chemistry & Habitat Water Dissolved Alkalinity Specific Sample Habitat Temperature Oxygen pH (as CaCO3) Conductance Length Assessment Score 15.4°C 9.33 mg/L 7.84 189 mg/L 609.8 S/cm 150 m 139 (suboptimal) Fish Species Number Fish Species Number American Brook Lamprey 2 White Sucker 8 Sea Lamprey 3 Green Sunfish 1 Eastern Mudminnow 107 Pumpkinseed 1 Redfin Pickerel 35 Tessellated Darter 46 Creek Chub 1 Brook Trout (older than y-o-y) 1 (210 mm) Blacknose Dace 19 Appendix A of Investigations and Management of NJ’s Freshwater Fisheries Resources (2014) A-3 2014 Stream Electrofishing Survey Data BEAR CREEK Project: Wild Trout Stream Reg. Assessment Drainage: Pequest River Location: Rt. 519 Bridge County: Warren Date: August 29, 2014 Municipality: Frelinghuysen Twp. Summary: Bear Creek has been regulated as a Wild Trout Stream since the inception of this special regulation in 1990. In 2014 this stream was surveyed at two locations to assess the wild trout population. This low gradient stream flows through swamp land in a broad, rolling valley before entering the Pequest River upstream of Great Meadows. Although regulated as a Wild Trout Stream, trout reproduction (i.e. presence of young-of-the-year trout) has never been documented in this stream despite the presence of wild Brook Trout age 1 and older. The stream’s mucky bottom substrate and high alkalinity (189 mg/L) is a natural condition and not the result of human activity, but rather a reflection of its geology (underlain with carbonate rock) and glacial origin. These stream characteristics are unusual compared to most wild trout/trout production streams in New Jersey, which are typically higher gradient, freestone streams having rocky substrate and low alkalinities (<50 mg/L). The following summarizes data collected at the upstream survey location: Although the instantaneous water temperature of 20.1°C (68.2°F) at this site was conducive for trout survival, no Brook Trout were encountered. Pumpkinseed was the most abundant species collected (94) and two native species that are commonly found in swampy north Jersey streams, Redfin Pickerel and Eastern Mudminnow, were also present. Also worth noting was the presence of three Bluespotted Sunfish (a native, but less common, sunfish). Other species present included Tessellated Darter, American Eel, Yellow Perch, Largemouth Bass, and lamprey (species undetermined). Recommendations: This data (and data from surveys previously conducted on trout production streams statewide) will be used to determine if the Wild Trout Stream regulation should be modified and/or if new regulations for wild trout are warranted. This stream should be periodically monitored in accordance with the established schedule (every five years for a Wild Trout Stream). Water Chemistry & Habitat Water Dissolved Alkalinity Specific Sample Habitat Temperature Oxygen pH (as CaCO3) Conductance Length Assessment Score 20.1°C 7.77 mg/L 7.67 165 mg/L 520.5 S/cm 150 m 134 (suboptimal) Fish Species Number Fish Species Number Unknown Lamprey Species 2 Bluegill 3 American Eel 16 Pumpkinseed 94 Eastern Mudminnow 2 Largemouth Bass 2 Redfin Pickerel 9 Tessellated Darter 2 Green Sunfish 1 Yellow Perch 1 Bluespotted Sunfish 3 Appendix A of Investigations and Management of NJ’s Freshwater Fisheries Resources (2014) A-4 2014 Stream Electrofishing Survey Data BIG FLATBROOK Project: Trout Special Regulation Area Inventory Drainage: Flat Brook Location: Between Rt. 206 and Rt. 560 County: Sussex Date: August 5, 2014 Municipality: Sandyston Twp. Summary: Prior to 2014, special trout fishing regulations (fly fishing for most or all of the year, and harvest allowed) had been in place for over 50 years on a 4.1 mile stretch of the Big Flat Brook/Flat Brook. In 2014, year round Catch & Release - Artificials Only fishing regulations were implemented. Electrofishing surveys have been conducted annually at four stations within this special regulation area since 2012 to assess the trout fishery.