Feeding Habits of Released Black Rockfish, Sebastes inermis, in Coastal Waters off Jam Island, Jinhae Bay, Korea

Kim, Gwang-Soo; Son, Min-Ho; Kwak, Seok-Nam; Park, Joo Myun; Huh, Sung‐Hoi

doi:10.5657/kfas.2009.42.1.073

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…The size and shape of otoliths in fish can be influenced by the type of prey items they consume because the composition of the prey item can affect the number of nutrients and energy that the fish receives and, consequently, fish growth and otolith production (Mille et al, 2016;Qiao et al, 2022). Dietary investigations of S. inermis and S. marmoratus from the Korean coast revealed considerable differences in their prey preferences, with S. inermis largely feeding on amphipods and S. marmoratus consuming teleosts (Kim et al, 2009;Lee et al, 2012). Mille et al (2016) studied the potential association between diet and otolith shape in five marine fish species and discovered that otolith shape variation was associated with primary and secondary prey groups.…”

Section: Dietary Influences On Otolith Morphologymentioning

confidence: 99%

Otolith morphology as a tool for stock discrimination of three rockfish species in the East Sea of Korea

Park,

Kang,

Kim

et al. 2023

Front. Mar. Sci.

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The shape and structure of otoliths play a vital role in studying fish populations because otolith shape indices are often applied to discriminate fish species. This study focused on examining inter- and intra-specific variations in otolith shape and size among three species of rockfish (Sebastes inermis, Sebastiscus marmoratus, and Sebastes zonatus) collected from the Dokdo and Ulleungdo regions of the East Sea in Korea. A total of 35 S. inermis specimens, 19 S. marmoratus specimens, and 59 S. zonatus specimens were collected between April 2021 and August 2022. The otolith shape was visualized using wavelet coefficients in the shapeR package. Otolith size indices, such as length, width, perimeter, and area, and shape indices, including form factor, aspect ratio, ellipticity, circularity, roundness, rectangularity, and squareness, were calculated for each species. Otolith size and shape indices significantly differed among the three rockfish species (p< 0.05). Compared with the other two species, S. marmoratus possessed more elongated otoliths, whereas S. zonatus had the largest otolith area, perimeter, and length. Average shape analysis based on wavelet coefficients revealed significant differences in otolith shape, particularly on the rostrum and posterior sides. A canonical analysis of principal components (CAP) confirmed the complete separation of otolith shapes among the three rockfish species, with 92.5% of the variation explained by the first axis (CAP1). The findings of this study enhance our understanding of the fish species in the Korean East Sea.

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Section: Dietary Influences On Otolith Morphologymentioning

confidence: 99%

Otolith morphology as a tool for stock discrimination of three rockfish species in the East Sea of Korea

Park,

Kang,

Kim

et al. 2023

Front. Mar. Sci.

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“…본 연구의 대상 어종인 볼락 (Sebastes inermis)은 쏨뱅이목 (Order Scorpaeniformes) 양볼락과 (Family Scorpaenidae)에 속 하는 어류로, 암초가 많은 연안해역에 주로 서식하는 연안정착 성 어류이다 (NFRDI, 2004). 볼락은 국내에서 수산자원 증대를 위한 수산생물 종묘 방류사업의 중요한 대상 품종 중 하나로 최근 들어 방류양이 증가하는 추세에 있으며 (MOMAF, 2004(MOMAF, , 2006NFRDI, 2007), 진해 잠도 주변해역에서 방류산 볼락의 식성 연구에서 방류산 볼락의 섭식적응 상태를 보고한 바 있다 (Kim et al, 2009). 성공적인 수산자원 종묘 방류사업의 결과를 도출하기 위해 서는 방류품종이 방류해역의 환경에 적응하여 유용 수산자원 으로 가입하는 기작을 밝히는 것이 중요하다.…”

Section: 서 론unclassified

“…본 연구는 경상남도 남해도 주변해역에서 방류한 양식산 방류 볼락이 서식하는 서식처 주변해역의 어류의 종조성 및 방류 볼락의 방류 후 행동특성을 파악하고자 한다. NFRDI, 2007;Kim et al, 2009), 이번 조사 결과와 유사하였다. 또한 단각류를 주로 먹는 먹이습성, 공복율 및 위중량지수 등의 변화 양상도 유사하게 나타나 방류산 볼락의 서식 적응 능력은 해역에 관계없이 유사한 양상이었다.…”

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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Currant Status of Detection of Aquatic Animal Pathogens in Cultured Juveniles for Stock Enhancement from 2009 to 2012

Cho¹,

Won²,

Han³

et al. 2013

Journal of fish pathology

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Hatchery-reared seeds provides a key source of animal protein for human consumption and restocking for fishery management. For stock enhancement program, we have inspected the hatchery-reared seeds of 33 species in 2009, 44 species in 2010, 43 species in 2011 and 46 species in 2012 for legally designated diseases. Results showed that abalone was the most abundant in the marine species group and then sea cucumber, olive flounder, rockfish and swimming crab were followed. Crucian carp was the most abundant and then mandarin fish, Korean bullhead, melanian snail and Chinese mitten crab were followed in the freshwater species group. The number of inspection for black sea bream, rock bream, scorpionfish, black scraper, and eel has continuously decreased for four years. The inspection for flathead mullet has been carried out only in 2009. The total number of inspection cases for eight pathogens in this study were 8,476 and disqualification cases were 56 (0.67%) by detection of aquatic animals pathogens such as koi herpesvirus, white spot syndrome virus, red sea bream iridovirus or viral haemorrhagic septicemia virus.

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Feeding Habits of Released Black Rockfish, Sebastes inermis, in Coastal Waters off Jam Island, Jinhae Bay, Korea

Cited by 3 publications

References 4 publications

Otolith morphology as a tool for stock discrimination of three rockfish species in the East Sea of Korea

Otolith morphology as a tool for stock discrimination of three rockfish species in the East Sea of Korea

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

Currant Status of Detection of Aquatic Animal Pathogens in Cultured Juveniles for Stock Enhancement from 2009 to 2012

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