인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Worldwide, the distribution ranges of cephalopods are expanding due to climate change. In the North Sea, the broadtail shortfin squid <i>Illex coindetii</i> (Ommastrephidae) has recently established a successful breeding population and now coexists with the local veined squid <i>Loligo forbesii</i> (Loliginidae). Among other squids, both species are potential food competitors. To investigate the trophic preferences of either species, we analyzed the fatty acid (FA) composition of the mantle tissue and the digestive gland (DG) via gas chromatography (GC). According to the FA trophic marker concept, FA signatures may be indicative of the staple food over a longer period. Additionally, we investigated the stomach contents of both species visually to obtain information about their recently consumed food. The FA patterns of the DG of both species suggested moderate overlaps of the prey spectra. The stomach contents of <i>I. coindetii</i> and <i>L. forbesii</i> showed significant overlaps, further confirmed by the trophic index Pianka's niche overlap. Both squid species fed on commercially important taxa, including herring, cod, and decapods. The population of <i>I. coindetii</i> in the North Sea will rise along with warming. As a consequence, competition with <i>L. forbesii</i> for food will increase, and food web interactions will change. Predation between both squid species may increase as well.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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