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2006 Marine Fisheries Survey Report

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2006 Marine Fisheries Survey Report STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION Gina McCarthy Commissioner Bureau of Natural Resources Marine Fisheries Division A STUDY OF MARINE RECREATIONAL FISHERIES IN CONNECTICUT Federal Aid in Sport Fish Restoration F-54-R-26 Annual Performance Report March 1, 2006 – February 28, 2007 Cover Photo This year’s cover features our Federal Aid Coordinator, Tony Petrillo, holding an oyster toadfish (Opsanus tau) collected during the fall 2006 Long Island Sound Trawl Survey. State of Connecticut Department of Environmental Protection Bureau of Natural Resources Marine Fisheries Division Federal Aid in Sport Fish Restoration F-54-R-26 Annual Performance Report Project Title: A Study of Marine Recreational Fisheries in Connecticut Period Covered: March 1, 2006 - February 28, 2007 Job Title Prepared by: Job 1: Marine Angler Survey Roderick E. MacLeod Job 2: Marine Finfish Survey Part 1: Long Island Sound Trawl Survey Kurt F. Gottschall Deborah J. Pacileo Part 2: Estuarine Seine Survey David R. Molnar Job 3: A Study of Nearshore Habitat Inactive Job 4: Studies in Conservation Engineering Inactive Job 5: Cooperative Interagency Resource Monitoring Matthew J. Lyman David G. Simpson Job 6: Public Outreach David R. Molnar Approved by: Eric M. Smith. Date: August 31, 2007 Director, Marine Fisheries Division Edward C. Parker, Date: August 31, 2007 Chief, Bureau of Natural Resources EXECUTIVE SUMMARY Project: A Study of Marine Recreational Fisheries in Connecticut Federal Aid Project: F54R-26 (Federal Aid in Sport Fish Restoration) Annual Progress Report: March 1, 2006 – February 28, 2007 Total Project Expenditures (2006/07): $652,831 ($489,623 Federal, $163,208 State) Purpose of the Project The purpose of this project is to collect information needed for management of the marine recreational fishery. This information includes angler participation, effort, catch, and harvest; the relative abundance of finfish and specific population parameters for important selected species, water quality and habitat parameters, and assessment of fishery related issues such as hook and release mortality. The project also includes an outreach component to inform the public, and increase understanding and support for management programs and regulations. The project is comprised of six jobs: 1) Marine Angler Survey, 2) Marine Finfish Survey, 3) Inshore Survey (Inactive), 4) Fishing Gear Studies (Inactive), 5) Cooperative Interagency Resource Monitoring, 6) Public Outreach. Job 3 has been inactive since March 1997. Job 4 has been inactive since 2000. Information on marine angler activity is collected from intercept interviews conducted by DEP staff and through a telephone survey conducted by a National Marine Fisheries Service contractor as part of the coastwide Marine Recreational Fisheries Statistics Survey. The relative abundance of 40 species and more detailed population information on selected finfish are obtained from an annual Long Island Sound trawl survey. The relative abundance of young-of-year winter flounder and nearshore finfish species is obtained from fall seine sampling conducted at eight sites. Fishing gear and fishing practices are evaluated by conducting studies of hook and release mortality rates and through sampling catches of commercial fishing vessels taking species of recreational interest. Marine habitat is monitored and evaluated through cooperative interagency monthly sampling of water quality parameters (temperature, salinity, dissolved oxygen) at 20 to 25 fixed sites throughout the Sound. Public outreach is performed through speaking engagements at schools, with civic organizations and fishing clubs as well as through displays in the Marine Headquarters lobby and fishing shows. Project staff also keep the Fisheries Advisory Council informed on project activities and frequent media contacts provide broad newspaper coverage of project activities and findings. Page i JOB 1: MARINE ANGLER SURVEY PART 1: MARINE RECREATIONAL FISHERY STATISTICS SURVEY OBJECTIVES (Summary) • To estimate the number of marine anglers, fishing trips, fish caught, and number and weight of fish harvested. KEY FINDINGS: • An estimated 380,155 anglers made 1.5 million trips in 2006. This is the fifth highest estimated number of anglers since the survey began in 1981. Total estimated trips made in 2006 were above the 1.4 million trip average (1981-2006). • Marine anglers caught an estimated 6.2 million fish, harvesting 1.5 million in 2006. • Five species: bluefish, scup, striped bass, summer flounder and tautog accounted for over 90 of both total catch and harvest estimates. • Winter flounder harvest has declined to fewer than 25,000 fish annually since 2000 and the estimated harvest for 2006 was only 7,714 fish. The long-term average winter flounder harvest was 345,744 fish with peak harvests of over 1 million fish in the early to mid-1980’s. CONCLUSIONS: • Coastwide fishery management plans and strong recent year class production are resulting in increases in several fish populations and good catches of many of the primary recreational species. • The once productive winter flounder resource no longer supports a substantial fishery in Connecticut. Landings (in number) that once ranked second or third behind bluefish and scup now account for less than 1% of fish harvested. RECOMMENDATIONS Continue to obtain catch and harvest information and angler participation rates through the Marine Recreational Fisheries Statistics Survey in order to monitor the status of the recreational marine fishery. Page ii JOB 1: MARINE ANGLER SURVEY PART 2: VOLUNTEER ANGLER SURVEY OBJECTIVES (Summary) To characterize the size and catch composition of both kept and released fish observed by volunteer anglers. KEY FINDINGS: • A total of 68 anglers participated in the survey and made 1,400 fishing trips in 2006. Volunteers including additional anglers involved in a fishing party made a total of 3,472 fishing trips. With multiple species taken per trip anglers reported 1,473 trips targeting bluefish, 2,304 trips for striped bass, 752 trips for summer flounder, 112 trips for winter flounder, 174 trips for scup and 324 trips for tautog. • Volunteer anglers measured 2,253 individual bluefish measuring > 12 inches in length, 3,108 striped bass, 1,590 summer flounder, 108 winter flounder, 1,043 scup and 560 tautog. Over 60% of measured fish were released, providing valuable data not available through MRFSS except for the party/headboat at sea sampling survey. CONCLUSIONS: • Volunteer anglers provide a tremendous amount of data on the size and catch composition of popular recreational species in Connecticut, supplying several stock assessments with scarce length information on released fish. RECOMMENDATIONS: • Maintain the Volunteer Angler Survey as an effective means of characterizing angler behavior and particularly in collecting length data on released fish that are not available from the MRFSS survey. Page iii JOB 2 PART 1: LONG ISLAND SOUND TRAWL SURVEY (LISTS) OBJECTIVES (Summary) • Provide an annual index of numbers and biomass per standard tow for 40 common species and age specific indices of abundance for scup, tautog, winter flounder, and summer flounder, and recruitment indices for bluefish (age 0) and weakfish (age 0). • Provide length frequency distributions of bluefish, scup, striped bass, summer flounder, weakfish, winter flounder, tautog and other ecologically important species that can be converted to ages using modal analysis, age-length keys or other techniques. KEY FINDINGS: • A total of 100,592 finfish, lobster and squid weighing 11,024 kg were collected in 2006. • Forty-nine finfish species and thirty-eight invertebrate species (or taxa) were collected from 120 tows conducted in 2006. The total fish species count of 49 is the lowest observed in 23 years, the average (1984-2005) is 58 species per year. The Long Island Sound Trawl Survey has collected ninety-six finfish species since the survey began in 1984. No new finfish species were observed in 2006 • Atlantic sturgeon and long-finned squid were the only two species at record high abundances (geometric mean count per tow) in 2006. Hickory shad abundance remained near the record high level seen in 2005. Abundance of spiny dogfish was the highest since 1990. • Adult scup abundance remains high relative to 1984-1998 levels but has dropped back down to the time series average level after a phenomenal peak in abundance in 2003. Similarly, summer flounder abundance has declined from the high levels recorded between 2001 and 2003 to more average levels as observed from 1996 to 2000. • Adult bluefish abundance has dropped this past fall from the second highest levels in 2004, to those similar of the mid and late nineties. Young of year weakfish abundance dropped dramatically in 2006 after higher than normal catches from 1999 to 2005. Age 1+ weakfish abundance remains average. Striped bass abundance has been above average for the past 12 years. • The spring survey index for tautog has remained low and below the time-series average for the past 14 years except for a short-lived increase in abundance recorded in 2002. The past eight years of winter flounder springtime abundance indices have been the lowest on record, with 2006 being a new record low for the time series. • American lobster spring abundance dropped to a record low again in 2006. The spring index has been declining for seven years now (since 1999) and the past three years have been the lowest since 1988. Fall lobster abundance has also declined for seven years to a record low for the second year (similar to the spring index). Four of the past five years have been the lowest fall indices on record. Page iv • Several other species were at or near record low abundance (by numbers) for both spring and fall surveys in 2006. Springtime indices of abundance have been at or near record lows for a couple years for black sea bass (2 years), cunner (3 years), fourspot flounder (2 years), red hake (4 years), and little skate (2 years). Windowpane flounder indices have been at or near record lows for the past seven years. Atlantic herring indices have been below average for the past nine years.
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