Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis
A conjoint analysis of gut contents and stable C and N isotopes was applied to determine the main food sources and feeding habits of dominant amphipods in an eelgrass bed (Zostera marina) in Gwangyang Bay, Korea. Gut content observations demonstrated that, while Gammaropsis japonicus and Jassa slatt...
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/16417 2023-05-15T18:25:43+02:00 Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis Jeong, SJ Suh, HL Kang, CK 해양대학원 10098613 Kang, CK 2012-09 https://oasis.postech.ac.kr/handle/2014.oak/16417 https://doi.org/10.1007/S00227-012-1981-Y English eng SPRINGER MARINE BIOLOGY 159 9 1943 1954 SCI급, SCOPUS 등재논문 SCI Marine & Freshwater Biology 0025-3162 2012-OAK-0000025673 https://oasis.postech.ac.kr/handle/2014.oak/16417 doi:10.1007/S00227-012-1981-Y 14042 MARINE BIOLOGY, v.159, no.9, pp.1943 - 1954 000308066400007 2-s2.0-84865833836 COROPHIUM-VOLUTATOR PALLAS FATTY-ACID ANALYSES STABLE-ISOTOPE SEAGRASS BED FOOD-WEB BENTHIC AMPHIPODS FEEDING ECOLOGY ORGANIC-MATTER SOUTHERN-OCEAN CONSUMER-DIET COROPHIUM-VOLUTATOR FATTY-ACID TIDAL FLAT CARBON CRUSTACEA Article ART 2012 ftponangunivst https://doi.org/10.1007/S00227-012-1981-Y 2022-10-20T20:10:35Z A conjoint analysis of gut contents and stable C and N isotopes was applied to determine the main food sources and feeding habits of dominant amphipods in an eelgrass bed (Zostera marina) in Gwangyang Bay, Korea. Gut content observations demonstrated that, while Gammaropsis japonicus and Jassa slatteryi are herbivorous, feeding on epiphytes and detritus, Pontogeneia rostrata and Monocorophium acherusicum are omnivorous, feeding on mesozooplankton fragments and detritus. Stable isotope data confirmed that epiphytes, detritus, and mesozooplankton fragments were major food sources for amphipods in the eelgrass bed. Isotopic mixing model calculations clearly showed an interspecific difference in diet composition. A high isotopic dissimilarity between amphipod taxa demonstrated interspecific trophic diversity, reflecting their herbivorous (G. japonicus and J. slatteryi) and omnivorous (P. rostrata and M. acherusicum) feeding habits and confirmed the detrivorous feeding habits of caprellids. Such trophic diversity at interspecific level of the amphipod species indicates that they use different food resources within their microhabitats and play species-specific functional roles as mediators in trophic pathways from producers to higher-level consumers of the eelgrass ecosystem. Finally, our findings suggest that information on the species-specific trophic ecology of amphipods is needed to better understand their potential role in the trophic dynamics and carbon flow of seagrass bed ecosystems. X 1 1 5 6 scie scopus Article in Journal/Newspaper Southern Ocean Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Jassa ENVELOPE(16.261,16.261,67.903,67.903) Southern Ocean Marine Biology 159 9 1943 1954 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
COROPHIUM-VOLUTATOR PALLAS FATTY-ACID ANALYSES STABLE-ISOTOPE SEAGRASS BED FOOD-WEB BENTHIC AMPHIPODS FEEDING ECOLOGY ORGANIC-MATTER SOUTHERN-OCEAN CONSUMER-DIET COROPHIUM-VOLUTATOR FATTY-ACID TIDAL FLAT CARBON CRUSTACEA |
spellingShingle |
COROPHIUM-VOLUTATOR PALLAS FATTY-ACID ANALYSES STABLE-ISOTOPE SEAGRASS BED FOOD-WEB BENTHIC AMPHIPODS FEEDING ECOLOGY ORGANIC-MATTER SOUTHERN-OCEAN CONSUMER-DIET COROPHIUM-VOLUTATOR FATTY-ACID TIDAL FLAT CARBON CRUSTACEA Jeong, SJ Suh, HL Kang, CK Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
topic_facet |
COROPHIUM-VOLUTATOR PALLAS FATTY-ACID ANALYSES STABLE-ISOTOPE SEAGRASS BED FOOD-WEB BENTHIC AMPHIPODS FEEDING ECOLOGY ORGANIC-MATTER SOUTHERN-OCEAN CONSUMER-DIET COROPHIUM-VOLUTATOR FATTY-ACID TIDAL FLAT CARBON CRUSTACEA |
description |
A conjoint analysis of gut contents and stable C and N isotopes was applied to determine the main food sources and feeding habits of dominant amphipods in an eelgrass bed (Zostera marina) in Gwangyang Bay, Korea. Gut content observations demonstrated that, while Gammaropsis japonicus and Jassa slatteryi are herbivorous, feeding on epiphytes and detritus, Pontogeneia rostrata and Monocorophium acherusicum are omnivorous, feeding on mesozooplankton fragments and detritus. Stable isotope data confirmed that epiphytes, detritus, and mesozooplankton fragments were major food sources for amphipods in the eelgrass bed. Isotopic mixing model calculations clearly showed an interspecific difference in diet composition. A high isotopic dissimilarity between amphipod taxa demonstrated interspecific trophic diversity, reflecting their herbivorous (G. japonicus and J. slatteryi) and omnivorous (P. rostrata and M. acherusicum) feeding habits and confirmed the detrivorous feeding habits of caprellids. Such trophic diversity at interspecific level of the amphipod species indicates that they use different food resources within their microhabitats and play species-specific functional roles as mediators in trophic pathways from producers to higher-level consumers of the eelgrass ecosystem. Finally, our findings suggest that information on the species-specific trophic ecology of amphipods is needed to better understand their potential role in the trophic dynamics and carbon flow of seagrass bed ecosystems. X 1 1 5 6 scie scopus |
author2 |
해양대학원 10098613 Kang, CK |
format |
Article in Journal/Newspaper |
author |
Jeong, SJ Suh, HL Kang, CK |
author_facet |
Jeong, SJ Suh, HL Kang, CK |
author_sort |
Jeong, SJ |
title |
Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
title_short |
Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
title_full |
Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
title_fullStr |
Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
title_full_unstemmed |
Trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and C and N isotope analysis |
title_sort |
trophic diversity in amphipods within a temperate eelgrass ecosystem as determined by gut contents and c and n isotope analysis |
publisher |
SPRINGER |
publishDate |
2012 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/16417 https://doi.org/10.1007/S00227-012-1981-Y |
long_lat |
ENVELOPE(16.261,16.261,67.903,67.903) |
geographic |
Jassa Southern Ocean |
geographic_facet |
Jassa Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
MARINE BIOLOGY 159 9 1943 1954 SCI급, SCOPUS 등재논문 SCI Marine & Freshwater Biology 0025-3162 2012-OAK-0000025673 https://oasis.postech.ac.kr/handle/2014.oak/16417 doi:10.1007/S00227-012-1981-Y 14042 MARINE BIOLOGY, v.159, no.9, pp.1943 - 1954 000308066400007 2-s2.0-84865833836 |
op_doi |
https://doi.org/10.1007/S00227-012-1981-Y |
container_title |
Marine Biology |
container_volume |
159 |
container_issue |
9 |
container_start_page |
1943 |
op_container_end_page |
1954 |
_version_ |
1766207327929630720 |