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FEEDING ECOLOGY OF DOMINANT GROUNDFISH IN THE NORTHERN BERING SEA DETERMINED BY STOMACH CONTENTS AND STABLE ISOTOPE ANALYSIS

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Title
FEEDING ECOLOGY OF DOMINANT GROUNDFISH IN THE NORTHERN BERING SEA DETERMINED BY STOMACH CONTENTS AND STABLE ISOTOPE ANALYSIS
Other Titles
위장 내용물과 안정동위원소로 측정된 베링해 북쪽에서 우점하는 어류들의 섭식 생태 연구
Authors
Xuehua Cui
Zhenghua Li
Lee, Sang H.
Lee W. Cooper
Jacqueline M. Grebmeier
Keywords
Bering sea; groundfish; stable isotope; stomach contents
Issue Date
2010
Citation
Xuehua Cui, et al. 2010. FEEDING ECOLOGY OF DOMINANT GROUNDFISH IN THE NORTHERN BERING SEA DETERMINED BY STOMACH CONTENTS AND STABLE ISOTOPE ANALYSIS. 극지연구소. 극지연구소. 2010.05.26~.
Abstract
The Bering Sea is one of the most productive areas in the sub-Arctic region including commercial fisheries in the southeastern Bering Sea, and it is also an important foraging area for seabirds and mammals (Loughlin et al. 1999, Aydin & Mueter 2007). With the ongoing, but variable climate change influence on the reduction of sea ice extent and coincident increases in seawater temperatures, it is likely that the Arctic biological community will be affected (Overland & Stabeno 2004, Grebmeier et al. 2006, Serreze et al. 2007, Mueter & Litzow 2008). The benthic dominated ecosystem on this shallow northern Bering shelf may well transition to a more pelagic-dominated system over time as sea ice and zooplankton grazing patterns change with continued climate warming (Grebmeier et al. 2006b, Grebmeier & Barry 2007). Ultimately trophic structure and coincident energy pathways of dominant organisms would also likely change. To examine the diet of dominant groundfish communities in the northern Bering Sea, stomach contents were used. Stable isotope analyses were also used to strengthen food web studies, since the stable isotope abundances of carbon (C) and nitrogen (N) in tissues are determined in part by the isotopic content in the diet (Fry & Sherr 1984, Michener & Schell 1994).
URI
http://repository.kopri.re.kr/handle/201206/7993
Conference Name
극지연구소
Conference Place
극지연구소
Conference Date
2010.05.26~
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