Long-term shifts in the species composition of a coastal fish community

Canadian Journal of Fisheries and Aquatic Sciences - Tập 65 Số 7 - Trang 1352-1365 - 2008
Jeremy S. Collie1, Adrienne Wood1, H. Perry Jeffries1
1Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882 USA

Tóm tắt

To study decadal shifts in a coastal nekton community, we analyzed data on 25 fish and invertebrate species collected from 1959 to 2005 by the University of Rhode Island, Graduate School of Oceanography (Narragansett, Rhode Island, USA). This weekly trawl survey samples two locations: inside Narragansett Bay and in Rhode Island Sound. Over four decades, the community has shifted progressively from vertebrates to invertebrates and, especially since 1980, from benthic to pelagic species. Demersal species that declined include winter flounder ( Pseudopleuronectes americanus ), silver hake ( Merluccius bilinearis ), and red hake ( Urophycis chuss ); meanwhile warm-water fish (butterfish, Peprilus triacanthus ; scup, Stenotomus chrysops ) and invertebrates (lobster, crab, squid) increased with time. Total numbers reached a maximum in the 1990s, while mean body size decreased. Taxonomic diversity increased over time, as the community shifted from fish to invertebrates of several phyla. The shifts in species composition correlate most strongly with spring–summer sea surface temperature, which increased 1.6 °C over the 47-year time series. Species composition was also correlated with the winter North Atlantic Oscillation index and chlorophyll concentration, which has declined since the 1970s. Triggered primarily by rising temperatures, these decadal changes have altered the trophic structure of the nekton community, resulting in a shift from benthic to pelagic consumers.

Từ khóa


Tài liệu tham khảo

10.1046/j.1365-2656.2003.00738.x

10.1038/417275a

Baumgartner T.R., 1992, CALCOFI (Calif. Coop. Ocean. Fish. Investig.) Rep., 33, 24

10.1111/j.0022-1112.2004.00311.x

10.1139/F06-132

Carpenter, S.R. 2003. Regime shifts in lake ecosystems: pattern and variation. Excellence in ecology. Book 15. Edited by Otto Kinne. International Ecology Institute, Oldendorf/Luhe, Germany.

10.1126/science.1075880

10.1139/f04-079

10.1111/j.1442-9993.1993.tb00438.x

10.3354/meps092205

10.1007/s004420050379

10.3354/meps102153

10.1016/j.jembe.2005.12.017

10.1016/j.pocean.2004.02.013

10.1006/jmsc.2000.0705

10.1029/2000GL012745

10.3354/meps008037

10.2307/2641359

10.1038/nature05963

10.1098/rspb.2003.2651

Hall, S.J. 1999. The effects of fishing on marine ecosystems and communities. Blackwell Science, Oxford, UK.

Hilborn, R., and Walters, C.J. 1992. Quantitative fisheries stock assessment. Chapman and Hall, New York.

10.1126/science.269.5224.676

10.1126/science.1059199

Jeffries H.P., 1974, J. Fish. Res. Board Can., 31, 1057, 10.1139/f74-120

10.3354/meps025239

10.1006/jmsc.2000.0731

10.1006/jmsc.1998.0383

10.1577/1548-8659(1993)122<0647:CCAMFD>2.3.CO;2

10.1126/science.1138657

Nixon, S.W., Buckley, B.A., Granger, S.L., Harris, L.A., Oczkowski, A.J., Fulweiler, R.W., and Cole, L.W. 2007. Nutrient (N and P) inputs to Narragansett Bay: past, present, and future. In Science for ecosystem-based estuarine management: Narragansett Bay in the 21st century. Edited by A. Desbonnet and B.A. Costa-Pierce. Springer-Verlag, New York. pp. 101–176.

Oviatt C.A., 2004, Estuaries, 27, 895, 10.1007/BF02803416

10.1080/10641260390244413

10.1126/science.1111322

10.1038/334613a0

10.1139/f02-164

10.1046/j.1365-2656.1999.00327.x

10.1038/35098000

10.1111/j.0021-8790.2004.00810.x

10.1046/j.1365-2419.1997.00039.x

10.1016/0165-7836(95)00440-8

10.1098/rspb.2003.2415

10.3354/meps129301

10.1890/0012-9658(2003)084[0162:MAOCSI]2.0.CO;2

Thông tin
Thông tin xuất bản

Canadian Journal of Fisheries and Aquatic Sciences

Tập 65 Số 7

1352-1365

Thông tin tác giả