Feeding Ecology of Sebastes schlegeli in the Tongyeong Marine Ranching Area

Park, Kyeong-Dong; Yong-Joo, Kang; Huh, Sung‐Hoi; Kwak, Seok-Nam; Kim, Ha-Won; Lee, Hae-Won

doi:10.5657/kfas.2007.40.5.308

Cited by 10 publications

(6 citation statements)

References 4 publications

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“…); those in the Tongyeong marine ranching area of South Korea mainly ate fish (Park et al. ); and those in the Yellow Sea fed on small fish, including the Japanese Anchovy Engraulis japonicus , Pholis fangi , Pacific Sandlance Ammodytes personatus , and Common Hairfin Anchovy Setipinna tenuifilis , as well as Japanese sand shrimp Crangon affinis , based on stomach content analysis for the period 1985–1988 (Wei and Jiang ). We found that Japanese Seaperch fed specifically on small fish species, such as Kammal Thryssa Thryssa kammalensis and Greater Pipefish Syngnathus acus , and shrimp.…”

Section: Discussionmentioning

confidence: 99%

Dietary Composition and Trophic Niche Partitioning of Spotty‐bellied Greenlings Hexagrammos agrammus, Fat Greenlings H. otakii, Korean Rockfish Sebastes schlegelii, and Japanese Seaperch Lateolabrax japonicus in the Yellow Sea Revealed by Stomach Content Analysis and Stable Isotope Analysis

Zhang

et al. 2018

Mar Coast Fish

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Stable nitrogen and carbon isotope ratios of fish tissues, in combination with stomach content analysis, provide insights into how energy flows through marine food webs. Using these techniques, we investigated the diets and trophic niches of four important fish species of the Yellow Sea: the Spotty‐bellied Greenling Hexagrammos agrammus, Fat Greenling H. otakii, Korean Rockfish Sebastes schlegelii, and Japanese Seaperch Lateolabrax japonicus. The stomach content analysis revealed that Spotty‐bellied Greenlings mainly fed on crabs and fish; Fat Greenlings mainly preyed on fish, crabs, and shrimps; Korean Rockfish primarily consumed fish and shrimps; and Japanese Seaperch mainly fed on fish. Korean Rockfish had the highest dietary breadth index among the four fish species. Dietary composition of the four species did not overlap significantly, as indicated by Schoener's index. Prey category composition varied across fish species and differed between species pairs (except Korean Rockfish and Japanese Seaperch), as suggested by permutational ANOVA tests. The stable isotope analysis suggested that Japanese Seaperch had significantly higher δ13C and δ15N and had a significantly different centroid position, both of which indicated a higher trophic position. The corrected standard ellipse area on the δ15N–δ13C (‰) biplot varied in size among species and significantly overlapped in the three rockfishes, with the largest overlap area observed between Fat Greenlings and Korean Rockfish. The results, in general, suggested that the three rockfish species, especially Korean Rockfish and Fat Greenlings, had similar trophic niches, but they were partitioned by prey resources according to the stomach content composition. Our study provides novel insights into the dietary niches and trophic dynamics of these four exploited species, which could help to improve ecosystem‐based fisheries management in the Yellow Sea.

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Section: Discussionmentioning

confidence: 99%

Dietary Composition and Trophic Niche Partitioning of Spotty‐bellied Greenlings Hexagrammos agrammus, Fat Greenlings H. otakii, Korean Rockfish Sebastes schlegelii, and Japanese Seaperch Lateolabrax japonicus in the Yellow Sea Revealed by Stomach Content Analysis and Stable Isotope Analysis

Zhang

et al. 2018

Mar Coast Fish

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“…and S. schlegelii in ARs based on stomach content analysis and SIA. H. otakii tends to eat decapods and amphipods, whereas S. schlegelii tends to eat fish and shrimp (Wei and Jiang, 1992;Park et al, 2007;Ji, 2014;Zhang et al, 2014;Zhang et al, 2018;Zhang et al, 2021). The d 15 N values of these species also indicated that they had relatively different ecological niches.…”

Section: Figurementioning

confidence: 99%

Investigating food web structure and system function of an artificial reef ecosystem based on carbon and nitrogen stable isotope analysis: implications for reef management

et al. 2023

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IntroductionFood web is an important basis for identifying trophodynamic processes, and evaluating the structural and functional characteristics of ecosystems. The trophodynamics and system function of artificial reef (AR) ecosystems have rarely been examined.MethodsStable isotope analysis was used to investigate the food web structure and functions of an artificial reef (AR) ecosystem in this study.Results and DiscussionThe δ13C and δ15N values of particulate organic matter (POM) in AR showed noticeable seasonal changes, and the δ13C value of POM in autumn was significantly higher than that in other seasons (p<0.05). There were no significant seasonal variations in the δ13C values of solid organic matter (SOM), and no significant difference between SOM and POM was observed except in autumn. Moreover, macroalgae did not significantly affect the δ13C values of SOM. Phytoplankton may be the primary nutrient source in the AR ecosystem. The δ13C values of most crustaceans in the AR were approximately between (-17.03 ± 0.22) ‰ – (-17.74 ± 0.07) ‰, higher than those of most fish, indicating that they may have different basal nutrient sources. The trophic level (TL) of invertebrates was between 2.00 and 3.09, and that of fish was between 2.98 and 3.66. The distribution of δ13C and TLs of crustaceans and fish showed that, except for crustaceans, bivalve shellfish and zooplankton might also be important food sources for fish in the AR ecosystem.ConclusionThe δ13C and δ15N values of most species in the AR showed good continuity, indicating that they may be mainly produced from the AR ecosystem. Migratory species such as Lateolabrax japonicus and Sepiella maindroni showed higher δ13C values, indicating that they may have migrated from other sea areas. To maintain the stability of the ecosystem structure and function of the AR ecosystem, fishing activities should be carried out following the maximum sustainable yield theory. Future research needs to identify the nutritional relationship between AR and its adjacent sea areas, to depict the food web structure of the AR with higher accuracy.

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“…방류산 볼락의 포식-피식관계 본 조사에서 수중비디오 및 연안통발 조사에 의한 결과와 방류지역과 인접한 남해도 주변해역에서 이전에 연구된 어류 군집연구 (Huh and Kwak, 1997;Kwak et al, 2008) (Park et al, 2007). 한편 방류 볼락의 방류 시 함께 공존하고 있었던 고등어의 경우는 주 먹이생물이 멸치와 같은 표영성 어류로 암반 틈이나 아래에 숨어서 서식 (Huh and Kwak, 1998b;Huh et al, 2008) (Huh and Kwak, 1998a;Kwak and Huh, 2002).…”

Section: 서 론unclassified

Species Composition and Behavioral Characteristics of Released Black Rockfish, Sebastes inermis in the Coastal Waters off Namhae Island, Korea

An¹,

Kwak²,

Park³

et al. 2010

Korean Journal of Fisheries and Aquatic Sciences

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Seventeen fish species were counted in an underwater visual census, and the most common species, Sebastes inermis and Halichoeres poecilopterus, were released. More than 60% of the released S.inermis occurred near a fish farm 5 days after release, but they moved to a distant rocky area, and decreasing numbers were seen near the farm 90 days after release. In pots, a total of 722 individuals belonging to 43 species occurred, and released S.inermis dominated with 174 individuals recaptured during the study period. The other common fish species were Stephanolepis cirrhifer and Acanthopagrus schlegeli. The percentage of recapture was 0.23%, but declined to 0.12% at 90 days after release. The potential predators of released S.inermis included Lateolabrax japonicus and Sebastes schlegeli.

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Feeding Ecology of Sebastes schlegeli in the Tongyeong Marine Ranching Area

Cited by 10 publications

References 4 publications

Dietary Composition and Trophic Niche Partitioning of Spotty‐bellied Greenlings Hexagrammos agrammus, Fat Greenlings H. otakii, Korean Rockfish Sebastes schlegelii, and Japanese Seaperch Lateolabrax japonicus in the Yellow Sea Revealed by Stomach Content Analysis and Stable Isotope Analysis

Dietary Composition and Trophic Niche Partitioning of Spotty‐bellied Greenlings Hexagrammos agrammus, Fat Greenlings H. otakii, Korean Rockfish Sebastes schlegelii, and Japanese Seaperch Lateolabrax japonicus in the Yellow Sea Revealed by Stomach Content Analysis and Stable Isotope Analysis

Investigating food web structure and system function of an artificial reef ecosystem based on carbon and nitrogen stable isotope analysis: implications for reef management

Species Composition and Behavioral Characteristics of Released Black Rockfish, Sebastes inermis in the Coastal Waters off Namhae Island, Korea

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