Long-term shifts in the species composition of a coastal fish community
To study decadal shifts in a coastal nekton community, we analyzed data on 25 fish and invertebrate species collected from 1959 to 2005 by University of Rhode Island, Graduate School of Oceanography (Narragansett, Rhode Island, USA). This weekly trawl survey samples two locations: inside Narraganset...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@URI
2008
|
Subjects: | |
Online Access: | https://digitalcommons.uri.edu/gsofacpubs/934 https://doi.org/10.1139/F08-048 |
id |
ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1903 |
---|---|
record_format |
openpolar |
spelling |
ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1903 2023-10-09T21:54:02+02:00 Long-term shifts in the species composition of a coastal fish community Collie, Jeremy S. Wood, Anthony D. Jeffries, H. Perry 2008-07-01T07:00:00Z https://digitalcommons.uri.edu/gsofacpubs/934 https://doi.org/10.1139/F08-048 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/934 doi:10.1139/F08-048 https://doi.org/10.1139/F08-048 Graduate School of Oceanography Faculty Publications text 2008 ftunivrhodeislan https://doi.org/10.1139/F08-048 2023-09-11T18:07:44Z To study decadal shifts in a coastal nekton community, we analyzed data on 25 fish and invertebrate species collected from 1959 to 2005 by 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. © 2008 NRC. Text North Atlantic North Atlantic oscillation University of Rhode Island: DigitalCommons@URI Hake ENVELOPE(15.612,15.612,66.797,66.797) Canadian Journal of Fisheries and Aquatic Sciences 65 7 1352 1365 |
institution |
Open Polar |
collection |
University of Rhode Island: DigitalCommons@URI |
op_collection_id |
ftunivrhodeislan |
language |
unknown |
description |
To study decadal shifts in a coastal nekton community, we analyzed data on 25 fish and invertebrate species collected from 1959 to 2005 by 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. © 2008 NRC. |
format |
Text |
author |
Collie, Jeremy S. Wood, Anthony D. Jeffries, H. Perry |
spellingShingle |
Collie, Jeremy S. Wood, Anthony D. Jeffries, H. Perry Long-term shifts in the species composition of a coastal fish community |
author_facet |
Collie, Jeremy S. Wood, Anthony D. Jeffries, H. Perry |
author_sort |
Collie, Jeremy S. |
title |
Long-term shifts in the species composition of a coastal fish community |
title_short |
Long-term shifts in the species composition of a coastal fish community |
title_full |
Long-term shifts in the species composition of a coastal fish community |
title_fullStr |
Long-term shifts in the species composition of a coastal fish community |
title_full_unstemmed |
Long-term shifts in the species composition of a coastal fish community |
title_sort |
long-term shifts in the species composition of a coastal fish community |
publisher |
DigitalCommons@URI |
publishDate |
2008 |
url |
https://digitalcommons.uri.edu/gsofacpubs/934 https://doi.org/10.1139/F08-048 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/934 doi:10.1139/F08-048 https://doi.org/10.1139/F08-048 |
op_doi |
https://doi.org/10.1139/F08-048 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
65 |
container_issue |
7 |
container_start_page |
1352 |
op_container_end_page |
1365 |
_version_ |
1779317461183627264 |