Loading…
Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary
Estuaries are essential habitats for recreational and commercial fish that are shaped by both natural and anthropogenic processes. In Louisiana a combination of climate change and planned coastal restoration actions is predicted to increase freshwater introduction to coastal estuaries. As such there...
Saved in:
| Published in: | Journal of fish biology 2024-08, Vol.105 (2), p.459-471 |
|---|---|
| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | |
|---|---|
| cites | cdi_FETCH-LOGICAL-c2200-7a682ed98e62f4a511717db3c5eb08382a37261b7312cbf78e5af114eb07d5213 |
| container_end_page | 471 |
| container_issue | 2 |
| container_start_page | 459 |
| container_title | Journal of fish biology |
| container_volume | 105 |
| creator | MacRae, Pamela S. D. Russell, Micah Cowan, James H. Fry, Brian Moyo, Sydney Polito, Michael J. |
| description | Estuaries are essential habitats for recreational and commercial fish that are shaped by both natural and anthropogenic processes. In Louisiana a combination of climate change and planned coastal restoration actions is predicted to increase freshwater introduction to coastal estuaries. As such there is a need to quantify the relationships between estuarine fish ecology and salinity to aid in predicting how species will respond to shifts in salinity. We investigated the relative abundance and dietary niches of adult (24.5 ± 5.4 cm standard length) spotted seatrout Cynoscion nebulosus across varying salinity regimes (oligohaline, mesohaline, and polyhaline) within Barataria Bay, Louisiana, using a combination of net sampling and gut content and stable isotopes analysis. We found that the relative abundance of C. nebulosus was lowest at the oligohaline site, translating to approximately five fewer fish captured for every single psu decrease in a site's average annual salinity. In contrast, we found that diets and, to a lesser extent, isotopic niches had a high degree of overlap across sites with differing salinity regimes. Fish and penaeid shrimp were the most common and important prey taxa recovered from guts at all sites. The small isotopic differences found among sites were likely due to spatial variation in hydrogeochemical baselines, and the observed isotopic overlap provides support for the idea that C. nebulosus move between adjacent salinity regimes and forage throughout Barataria Bay. Our results contribute to a greater understanding of the salinity preference and trophic ecology of C. nebulosus that can aid in predicting their responses to future salinity and habitat changes within Barataria Bay associated with predicted climate change and planned coastal restoration actions. |
| doi_str_mv | 10.1111/jfb.15810 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_3076018460</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3076018460</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2200-7a682ed98e62f4a511717db3c5eb08382a37261b7312cbf78e5af114eb07d5213</originalsourceid><addsrcrecordid>eNp1kctu3DAMRYWiBTJNssgfEOgmBeJEkh-Sl-mgeWGAbpq1Qct0o4EjTU0ZwXxJfzdqpqsC4YYLHvLy4gpxpuSlynW1HftLVVslP4iVkm1d2KZqP4qVlFoXGdBH4jPzVkrZlm25En_WMbDnRMF5YvAB0hPB4CnhvAcMA3iOKe68g-BdHsUReBdTogGYMM1xSRew3ofIzscAgfplirzwBaCbIzMgME4--LSHXzPmyyHBi09PWQrBReSEE2zi4tljQCBOS5Y-EZ9GnJhO__Vj8Xjz_ef6rtj8uL1fX28Kp7WUhcHGahpaS40eK6yVMsoMfelq6qUtrcbS6Eb1plTa9aOxVOOoVJWnZqi1Ko_F-eHubo6_lyzePXt2NE0YKC7cldI0UtmqkRn98h-6jcsc8neZaitlZWN0pr4eqDf3M43dbvbP2VGnZPc3oi5H1L1FlNmrA_viJ9q_D3YPN98OG69ttZSF</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>3094180672</pqid></control><display><type>article</type><title>Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary</title><source>Wiley-Blackwell Journals</source><creator>MacRae, Pamela S. D. ; Russell, Micah ; Cowan, James H. ; Fry, Brian ; Moyo, Sydney ; Polito, Michael J.</creator><creatorcontrib>MacRae, Pamela S. D. ; Russell, Micah ; Cowan, James H. ; Fry, Brian ; Moyo, Sydney ; Polito, Michael J.</creatorcontrib><description>Estuaries are essential habitats for recreational and commercial fish that are shaped by both natural and anthropogenic processes. In Louisiana a combination of climate change and planned coastal restoration actions is predicted to increase freshwater introduction to coastal estuaries. As such there is a need to quantify the relationships between estuarine fish ecology and salinity to aid in predicting how species will respond to shifts in salinity. We investigated the relative abundance and dietary niches of adult (24.5 ± 5.4 cm standard length) spotted seatrout Cynoscion nebulosus across varying salinity regimes (oligohaline, mesohaline, and polyhaline) within Barataria Bay, Louisiana, using a combination of net sampling and gut content and stable isotopes analysis. We found that the relative abundance of C. nebulosus was lowest at the oligohaline site, translating to approximately five fewer fish captured for every single psu decrease in a site's average annual salinity. In contrast, we found that diets and, to a lesser extent, isotopic niches had a high degree of overlap across sites with differing salinity regimes. Fish and penaeid shrimp were the most common and important prey taxa recovered from guts at all sites. The small isotopic differences found among sites were likely due to spatial variation in hydrogeochemical baselines, and the observed isotopic overlap provides support for the idea that C. nebulosus move between adjacent salinity regimes and forage throughout Barataria Bay. Our results contribute to a greater understanding of the salinity preference and trophic ecology of C. nebulosus that can aid in predicting their responses to future salinity and habitat changes within Barataria Bay associated with predicted climate change and planned coastal restoration actions.</description><identifier>ISSN: 0022-1112</identifier><identifier>ISSN: 1095-8649</identifier><identifier>EISSN: 1095-8649</identifier><identifier>DOI: 10.1111/jfb.15810</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Abundance ; Animal morphology ; Anthropogenic factors ; Brackishwater environment ; Brackishwater fishes ; Climate change ; Climate prediction ; Coastal ecology ; Coastal processes ; Cynoscion nebulosus ; Ecology ; Estuaries ; Estuarine dynamics ; Estuarine fisheries ; Fish ; food webs ; Freshwater ; freshwater inputs ; gut contents ; Habitat changes ; Habitats ; Hydrogeochemistry ; Inland water environment ; Introduced species ; Isotopes ; Marine crustaceans ; Niches ; Relative abundance ; Restoration ; Salinity ; Salinity effects ; Salinity gradients ; Spatial variations ; Stable isotopes</subject><ispartof>Journal of fish biology, 2024-08, Vol.105 (2), p.459-471</ispartof><rights>2024 Fisheries Society of the British Isles.</rights><rights>Journal of Fish Biology © 2024 The Fisheries Society of the British Isles</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c2200-7a682ed98e62f4a511717db3c5eb08382a37261b7312cbf78e5af114eb07d5213</cites><orcidid>0000-0001-8639-4431</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjfb.15810$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjfb.15810$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,786,790,27957,27958,50923,51032</link.rule.ids></links><search><creatorcontrib>MacRae, Pamela S. D.</creatorcontrib><creatorcontrib>Russell, Micah</creatorcontrib><creatorcontrib>Cowan, James H.</creatorcontrib><creatorcontrib>Fry, Brian</creatorcontrib><creatorcontrib>Moyo, Sydney</creatorcontrib><creatorcontrib>Polito, Michael J.</creatorcontrib><title>Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary</title><title>Journal of fish biology</title><description>Estuaries are essential habitats for recreational and commercial fish that are shaped by both natural and anthropogenic processes. In Louisiana a combination of climate change and planned coastal restoration actions is predicted to increase freshwater introduction to coastal estuaries. As such there is a need to quantify the relationships between estuarine fish ecology and salinity to aid in predicting how species will respond to shifts in salinity. We investigated the relative abundance and dietary niches of adult (24.5 ± 5.4 cm standard length) spotted seatrout Cynoscion nebulosus across varying salinity regimes (oligohaline, mesohaline, and polyhaline) within Barataria Bay, Louisiana, using a combination of net sampling and gut content and stable isotopes analysis. We found that the relative abundance of C. nebulosus was lowest at the oligohaline site, translating to approximately five fewer fish captured for every single psu decrease in a site's average annual salinity. In contrast, we found that diets and, to a lesser extent, isotopic niches had a high degree of overlap across sites with differing salinity regimes. Fish and penaeid shrimp were the most common and important prey taxa recovered from guts at all sites. The small isotopic differences found among sites were likely due to spatial variation in hydrogeochemical baselines, and the observed isotopic overlap provides support for the idea that C. nebulosus move between adjacent salinity regimes and forage throughout Barataria Bay. Our results contribute to a greater understanding of the salinity preference and trophic ecology of C. nebulosus that can aid in predicting their responses to future salinity and habitat changes within Barataria Bay associated with predicted climate change and planned coastal restoration actions.</description><subject>Abundance</subject><subject>Animal morphology</subject><subject>Anthropogenic factors</subject><subject>Brackishwater environment</subject><subject>Brackishwater fishes</subject><subject>Climate change</subject><subject>Climate prediction</subject><subject>Coastal ecology</subject><subject>Coastal processes</subject><subject>Cynoscion nebulosus</subject><subject>Ecology</subject><subject>Estuaries</subject><subject>Estuarine dynamics</subject><subject>Estuarine fisheries</subject><subject>Fish</subject><subject>food webs</subject><subject>Freshwater</subject><subject>freshwater inputs</subject><subject>gut contents</subject><subject>Habitat changes</subject><subject>Habitats</subject><subject>Hydrogeochemistry</subject><subject>Inland water environment</subject><subject>Introduced species</subject><subject>Isotopes</subject><subject>Marine crustaceans</subject><subject>Niches</subject><subject>Relative abundance</subject><subject>Restoration</subject><subject>Salinity</subject><subject>Salinity effects</subject><subject>Salinity gradients</subject><subject>Spatial variations</subject><subject>Stable isotopes</subject><issn>0022-1112</issn><issn>1095-8649</issn><issn>1095-8649</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kctu3DAMRYWiBTJNssgfEOgmBeJEkh-Sl-mgeWGAbpq1Qct0o4EjTU0ZwXxJfzdqpqsC4YYLHvLy4gpxpuSlynW1HftLVVslP4iVkm1d2KZqP4qVlFoXGdBH4jPzVkrZlm25En_WMbDnRMF5YvAB0hPB4CnhvAcMA3iOKe68g-BdHsUReBdTogGYMM1xSRew3ofIzscAgfplirzwBaCbIzMgME4--LSHXzPmyyHBi09PWQrBReSEE2zi4tljQCBOS5Y-EZ9GnJhO__Vj8Xjz_ef6rtj8uL1fX28Kp7WUhcHGahpaS40eK6yVMsoMfelq6qUtrcbS6Eb1plTa9aOxVOOoVJWnZqi1Ko_F-eHubo6_lyzePXt2NE0YKC7cldI0UtmqkRn98h-6jcsc8neZaitlZWN0pr4eqDf3M43dbvbP2VGnZPc3oi5H1L1FlNmrA_viJ9q_D3YPN98OG69ttZSF</recordid><startdate>202408</startdate><enddate>202408</enddate><creator>MacRae, Pamela S. D.</creator><creator>Russell, Micah</creator><creator>Cowan, James H.</creator><creator>Fry, Brian</creator><creator>Moyo, Sydney</creator><creator>Polito, Michael J.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7TN</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>L.G</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-8639-4431</orcidid></search><sort><creationdate>202408</creationdate><title>Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary</title><author>MacRae, Pamela S. D. ; Russell, Micah ; Cowan, James H. ; Fry, Brian ; Moyo, Sydney ; Polito, Michael J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2200-7a682ed98e62f4a511717db3c5eb08382a37261b7312cbf78e5af114eb07d5213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Abundance</topic><topic>Animal morphology</topic><topic>Anthropogenic factors</topic><topic>Brackishwater environment</topic><topic>Brackishwater fishes</topic><topic>Climate change</topic><topic>Climate prediction</topic><topic>Coastal ecology</topic><topic>Coastal processes</topic><topic>Cynoscion nebulosus</topic><topic>Ecology</topic><topic>Estuaries</topic><topic>Estuarine dynamics</topic><topic>Estuarine fisheries</topic><topic>Fish</topic><topic>food webs</topic><topic>Freshwater</topic><topic>freshwater inputs</topic><topic>gut contents</topic><topic>Habitat changes</topic><topic>Habitats</topic><topic>Hydrogeochemistry</topic><topic>Inland water environment</topic><topic>Introduced species</topic><topic>Isotopes</topic><topic>Marine crustaceans</topic><topic>Niches</topic><topic>Relative abundance</topic><topic>Restoration</topic><topic>Salinity</topic><topic>Salinity effects</topic><topic>Salinity gradients</topic><topic>Spatial variations</topic><topic>Stable isotopes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MacRae, Pamela S. D.</creatorcontrib><creatorcontrib>Russell, Micah</creatorcontrib><creatorcontrib>Cowan, James H.</creatorcontrib><creatorcontrib>Fry, Brian</creatorcontrib><creatorcontrib>Moyo, Sydney</creatorcontrib><creatorcontrib>Polito, Michael J.</creatorcontrib><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of fish biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MacRae, Pamela S. D.</au><au>Russell, Micah</au><au>Cowan, James H.</au><au>Fry, Brian</au><au>Moyo, Sydney</au><au>Polito, Michael J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary</atitle><jtitle>Journal of fish biology</jtitle><date>2024-08</date><risdate>2024</risdate><volume>105</volume><issue>2</issue><spage>459</spage><epage>471</epage><pages>459-471</pages><issn>0022-1112</issn><issn>1095-8649</issn><eissn>1095-8649</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Estuaries are essential habitats for recreational and commercial fish that are shaped by both natural and anthropogenic processes. In Louisiana a combination of climate change and planned coastal restoration actions is predicted to increase freshwater introduction to coastal estuaries. As such there is a need to quantify the relationships between estuarine fish ecology and salinity to aid in predicting how species will respond to shifts in salinity. We investigated the relative abundance and dietary niches of adult (24.5 ± 5.4 cm standard length) spotted seatrout Cynoscion nebulosus across varying salinity regimes (oligohaline, mesohaline, and polyhaline) within Barataria Bay, Louisiana, using a combination of net sampling and gut content and stable isotopes analysis. We found that the relative abundance of C. nebulosus was lowest at the oligohaline site, translating to approximately five fewer fish captured for every single psu decrease in a site's average annual salinity. In contrast, we found that diets and, to a lesser extent, isotopic niches had a high degree of overlap across sites with differing salinity regimes. Fish and penaeid shrimp were the most common and important prey taxa recovered from guts at all sites. The small isotopic differences found among sites were likely due to spatial variation in hydrogeochemical baselines, and the observed isotopic overlap provides support for the idea that C. nebulosus move between adjacent salinity regimes and forage throughout Barataria Bay. Our results contribute to a greater understanding of the salinity preference and trophic ecology of C. nebulosus that can aid in predicting their responses to future salinity and habitat changes within Barataria Bay associated with predicted climate change and planned coastal restoration actions.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/jfb.15810</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0001-8639-4431</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-1112 |
| ispartof | Journal of fish biology, 2024-08, Vol.105 (2), p.459-471 |
| issn | 0022-1112 1095-8649 1095-8649 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_3076018460 |
| source | Wiley-Blackwell Journals |
| subjects | Abundance Animal morphology Anthropogenic factors Brackishwater environment Brackishwater fishes Climate change Climate prediction Coastal ecology Coastal processes Cynoscion nebulosus Ecology Estuaries Estuarine dynamics Estuarine fisheries Fish food webs Freshwater freshwater inputs gut contents Habitat changes Habitats Hydrogeochemistry Inland water environment Introduced species Isotopes Marine crustaceans Niches Relative abundance Restoration Salinity Salinity effects Salinity gradients Spatial variations Stable isotopes |
| title | Consistencies in the dietary and isotopic niche of spotted seatrout, Cynoscion nebulosus, across a salinity gradient within a coastal Louisiana estuary |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-22T17%3A41%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Consistencies%20in%20the%20dietary%20and%20isotopic%20niche%20of%20spotted%20seatrout,%20Cynoscion%20nebulosus,%20across%20a%20salinity%20gradient%20within%20a%20coastal%20Louisiana%20estuary&rft.jtitle=Journal%20of%20fish%20biology&rft.au=MacRae,%20Pamela%20S.%20D.&rft.date=2024-08&rft.volume=105&rft.issue=2&rft.spage=459&rft.epage=471&rft.pages=459-471&rft.issn=0022-1112&rft.eissn=1095-8649&rft_id=info:doi/10.1111/jfb.15810&rft_dat=%3Cproquest_cross%3E3076018460%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c2200-7a682ed98e62f4a511717db3c5eb08382a37261b7312cbf78e5af114eb07d5213%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=3094180672&rft_id=info:pmid/&rfr_iscdi=true |