δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure
This study examined the delta(15)N of suspended and sedimented particulate organic matter, primary sources of organic matter and benthic invertebrates along an estuarine gradient in Marennes-Oleron Bay, France. Particular emphasis was given to the use of delta(15)N as a tracer of the origin of organ...
Published in: | Marine Ecology Progress Series |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter-research
1998
|
Subjects: | |
Online Access: | https://archimer.ifremer.fr/doc/00448/55926/57786.pdf https://doi.org/10.3354/meps166143 https://archimer.ifremer.fr/doc/00448/55926/ |
id |
ftarchimer:oai:archimer.ifremer.fr:55926 |
---|---|
record_format |
openpolar |
spelling |
ftarchimer:oai:archimer.ifremer.fr:55926 2023-05-15T15:58:01+02:00 δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure Riera, Pascal 1998 application/pdf https://archimer.ifremer.fr/doc/00448/55926/57786.pdf https://doi.org/10.3354/meps166143 https://archimer.ifremer.fr/doc/00448/55926/ eng eng Inter-research https://archimer.ifremer.fr/doc/00448/55926/57786.pdf doi:10.3354/meps166143 https://archimer.ifremer.fr/doc/00448/55926/ Inter-Research 1998 info:eu-repo/semantics/openAccess restricted use Marine Ecology Progress Series (0171-8630) (Inter-research), 1998 , Vol. 166 , P. 143-150 nitrogen isotope ratio particulate organic matter Crassostrea gigas benthic food web estuary Marennes-Oleron Bay text Publication info:eu-repo/semantics/article 1998 ftarchimer https://doi.org/10.3354/meps166143 2021-09-23T20:31:16Z This study examined the delta(15)N of suspended and sedimented particulate organic matter, primary sources of organic matter and benthic invertebrates along an estuarine gradient in Marennes-Oleron Bay, France. Particular emphasis was given to the use of delta(15)N as a tracer of the origin of organic matter and as a means of determining the benthic food web structure in estuarine environments. delta(15)N values indicated that there was direct utilisation of benthic diatoms as a food source by oyster Crassostrea gigas near intertidal mudflats but suggested trophic mediation between terrestrial detritus and oysters in the upper estuarine reaches. delta(15)N data showed that the trophic position of oysters may vary in the estuarine bay. The delta(15)N values for the other invertebrates investigated revealed that apparent discrepancies may occur concerning the correspondence between delta(15)N, trophic level and feeding mode of invertebrates in estuarine ecosystems. In fact, these results suggest that delta(15)N can be a useful tool to characterise trophic transfers and to establish an isotopic food web model, provided that one considers the different feeding habitats along the estuarine gradient. Article in Journal/Newspaper Crassostrea gigas Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Marine Ecology Progress Series 166 143 150 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
nitrogen isotope ratio particulate organic matter Crassostrea gigas benthic food web estuary Marennes-Oleron Bay |
spellingShingle |
nitrogen isotope ratio particulate organic matter Crassostrea gigas benthic food web estuary Marennes-Oleron Bay Riera, Pascal δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
topic_facet |
nitrogen isotope ratio particulate organic matter Crassostrea gigas benthic food web estuary Marennes-Oleron Bay |
description |
This study examined the delta(15)N of suspended and sedimented particulate organic matter, primary sources of organic matter and benthic invertebrates along an estuarine gradient in Marennes-Oleron Bay, France. Particular emphasis was given to the use of delta(15)N as a tracer of the origin of organic matter and as a means of determining the benthic food web structure in estuarine environments. delta(15)N values indicated that there was direct utilisation of benthic diatoms as a food source by oyster Crassostrea gigas near intertidal mudflats but suggested trophic mediation between terrestrial detritus and oysters in the upper estuarine reaches. delta(15)N data showed that the trophic position of oysters may vary in the estuarine bay. The delta(15)N values for the other invertebrates investigated revealed that apparent discrepancies may occur concerning the correspondence between delta(15)N, trophic level and feeding mode of invertebrates in estuarine ecosystems. In fact, these results suggest that delta(15)N can be a useful tool to characterise trophic transfers and to establish an isotopic food web model, provided that one considers the different feeding habitats along the estuarine gradient. |
format |
Article in Journal/Newspaper |
author |
Riera, Pascal |
author_facet |
Riera, Pascal |
author_sort |
Riera, Pascal |
title |
δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
title_short |
δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
title_full |
δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
title_fullStr |
δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
title_full_unstemmed |
δ15N of organic matter sources and benthic invertebrates along an estuarine gradient in Marennes-Oleron bay (France): implications for the study of trophic structure |
title_sort |
δ15n of organic matter sources and benthic invertebrates along an estuarine gradient in marennes-oleron bay (france): implications for the study of trophic structure |
publisher |
Inter-research |
publishDate |
1998 |
url |
https://archimer.ifremer.fr/doc/00448/55926/57786.pdf https://doi.org/10.3354/meps166143 https://archimer.ifremer.fr/doc/00448/55926/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Marine Ecology Progress Series (0171-8630) (Inter-research), 1998 , Vol. 166 , P. 143-150 |
op_relation |
https://archimer.ifremer.fr/doc/00448/55926/57786.pdf doi:10.3354/meps166143 https://archimer.ifremer.fr/doc/00448/55926/ |
op_rights |
Inter-Research 1998 info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.3354/meps166143 |
container_title |
Marine Ecology Progress Series |
container_volume |
166 |
container_start_page |
143 |
op_container_end_page |
150 |
_version_ |
1766393742806220800 |