• 한국수산과학회지
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• 제49권5호
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• pp.694-700
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• 2016

Specimens of Callionymus beniteguri (n=89) were collected from the waters off the coast of Taean, Korea, between April 2008 and January 2009, and their feeding behavior was observed. C. beniteguri (4.0-15.5 cm SL) was found to be a bottom-feeding carnivore that primarily preyed on gammarid amphipods, and secondarily consumed polychaetes but also ingested bivalves, shrimps, cumaceans, and sea urchins. Six additional minor prey groups also contributed to its diet, but the index of relative importance (IRI) for these groups was relatively low (<1.0). C. beniteguri exhibited size-related dietary changes. Small individuals (<10 cm SL) mainly consumed amphipods. As fish size increased, amphipods tended to decline in IRI, while the contributions of bivalves, sea urchins, and polychaetes became more important.

• BMB Reports
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• 제50권1호
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• pp.3-4
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• 2017

Recent advances in genome sequencing technologies have enabled humans to generate and investigate the genomes of wild species. This includes the big cat family, such as tigers, lions, and leopards. Adding the first high quality leopard genome, we have performed an in-depth comparative analysis to identify the genomic signatures in the evolution of felid to become the top predators on land. Our study focused on how the carnivore genomes, as compared to the omnivore or herbivore genomes, shared evolutionary adaptations in genes associated with nutrient metabolism, muscle strength, agility, and other traits responsible for hunting and meat digestion. We found genetic evidence that genomes represent what animals eat through modifying genes. Highly conserved genetically relevant regions were discovered in genomes at the family level. Also, the Felidae family genomes exhibited low levels of genetic diversity associated with decreased population sizes, presumably because of their strict diet, suggesting their vulnerability and critical conservation status. Our findings can be used for human health enhancement, since we share the same genes as cats with some variation. This is an example how wildlife genomes can be a critical resource for human evolution, providing key genetic marker information for disease treatment.

• 한국수산과학회지
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• 제31권6호
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• pp.806-812
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• 1998

광양만 대도주변 잘피밭에서 채집된 복섬 유어의 식성을 조사하였다. 복섬 (2$\~$8 cm SL)의 주요 먹이생물은 단각류 (옆새우류 및 카프렐라류), 게류 및 새우류 둥의 갑각류와 복족류였다. 그 외 갯지렁이류, 요각류, 주걱벌레붙이류, 등각류 등이 소량씩 위내용물 중 발견되었다. 복섬이 성장함에 따라 먹이생물의 조성이 점차 변하였다. 체장이 작은 복섬은 옆새우류, 카프렐라류 및 복족류를 주로 먹었으나, 체장이 증가하면서 옆새우류 및 복족류의 비율은 점차 낮아진 반면, 게류 및 새우류가 위내용물 중 차지하는 비율은 증가하였다.

• 한국수산과학회지
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• 제30권5호
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• pp.896-902
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• 1997

1994년 1월부터 1994년 12월까지 광양만 대도주변 잘피밭에서 채집된 실고기의 식성을 조사하였다. 실고기는 요각류 (Copepoda)와 잘피의 엽상체에 부착하여 서식하는 단각류 (Amphipoda)의 일종인 옆새우류 (Gammaridea)를 주로 섭이하였으며, 그 외, 카프렐라류 (Caprellidea), 주걱벌레붙이류 (Tanaidacea), 곤쟁이류 (Mysidacea) 등을 소량 섭이하였다. 실고기는 성장함에 따라 섭이된 먹이생물 조성의 변동이 뚜렷하였다. 어린 실고기는 요각류를 주로 섭이하였으나, 체장이 증가하면서 옆새우류를 주로 섭이하였다. 먹이생물의 조성은 계절에 따라 변화되었는데, 봄철에는 요각류가, 여름철과 가을철에는 옆새우류가 주로 섭이되었다.

• 환경생물
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• 제24권1호
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• pp.29-37
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• 2006

강원도 홍천군 서석면 생곡리에서 2002년 4월부터 2003년 3월까지 하천의 상류수역에 서식하는 한국 특산종인 R. kumgangensis의 식성에 대하여 조사하였다. R. kumgangensis는 주로 Ephemeroptera, Diptera, Terrestrial insects와 Trichoptera를 섭식하는 식충성 어류로 밝혀졌다. 주요한 먹이생물은 깔다구류(Chironomus sp.)였다. 크기가 작은 개체군에서는 Diptera와 같은 작은 크기의 먹이를 섭식하고, 성장함에 따라 Ephemeroptera와 Terrestrial insects같은 크기가 큰 먹이로의 먹이 전환이 일어난다. 또한 계절의 변화에 따라 먹이항목의 상대적 비율이 변화한다.

• 수산해양기술연구
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• 제50권2호
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• pp.115-123
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• 2014

A total of 164 individuals of Hippocampus coronatus were collected from an eelgrass bed in Dongdae Bay, Korea from September 2006 to August 2007. The number of individuals of H. coronatus was higher in September 2006. The size of H. coronatus ranged from 2.4 to 9.3cm in height (Ht), and most of individuals were small size below 5cm (Ht). H. coronatus was a carnivore which consumed mainly gammarid amphipods and copepods. Its diets also included a small amount ofmysids, ostracods, brachiopods, caprellid amphipods, bathynellaceas, isopods, tanaids, and ascothoracids. The diets of H. coronatus underwent size-related changes; smaller individuals consumed copepods, while larger individuals ate gammarid amphipods and mysids. The dietary breadth index of H. coronatus was increased with increasing of their size.

• 한국수산과학회지
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• 제48권3호
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• pp.368-376
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• 2015

The Feeding habits of larval Liparis tanakae collected from the Nakdong River estuary were studied. L. tanakae [3.8-10.6 mm notochord length(NL)] was a carnivore thatconsumed mainly copepods. Its diet also included small numbers of free-living flatworms (Macrostomida), tintinnids, cladocerans, and polychaetes larvae. To evaluate ontogenetic changes in dietary composition, three size groups were designated: 3-5, 5-7, and >7 mm. Copepods were the most important prey items for all size groups. The smallest size group frequently preyed on polychaete and bivalve larvae, along with copepods. As notochord length increased, the numbers of cladocerans and Macrostomida increased relative to those of polychaete and bivalve larvae.

• 한국수산과학회지
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• 제39권1호
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• pp.42-48
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• 2006

Analysis of stomach content for common squid was carried out to investigate the difference in seasonal and ontogenetic feeding behavior. Totals of 1368 common squid were collected monthly off Busan from September 2004 to August, 2005. Size range of common squid was 8.5-31.8 cm mantle length (ML) during the study period. Of the 1368 stomachs examined, 599 specimens (43.8%) were empty. Stomach contents indicated that common squid was carnivore: Large portion of stomach contents consisted of fish and mollusca (mainly common squid). The stomach contents index (SCI) seemed to increase with size, though there was no statistical difference between size classes significantly. Cannibalism was minimum in size range of 15-20 cm ML, but was steadily increased with size. Cephalopods were the major prey during spring and summer when common squid were small, but fish replaced it during autumn and winter when they became large.

• 한국수산과학회지
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• 제40권5호
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• pp.308-314
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• 2007

The feeding habits of Sebastes schlegeli collected from the Tongyeong marine ranching area throughout 2002 were studied. S. schlegeli is a carnivore (piscivore), and consumed mainly fish. Its diet also included a small amount of caridean shrimps, crabs, amphipods, polychaetes, and isopods. The diet of S. schlegeli underwent size-related changes. Small individuals (standard length (SL)<6 cm) fed mainly on fishes, caridean shrimps, and amphipods, and the proportion of fish increased with SL. Large individuals (SL>20 cm) ate fish predominately. The diet of S. schlegeli changes seasonally, and caridean shrimps were consumed mainly from May to July. The dietary breadth index of S. schlegeli varied with SL and season.

• 한국수산과학회지
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• 제44권6호
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• pp.684-688
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• 2011

The feeding habits of Paralichthys olivaceus in the Uljin marine ranching area, located on the mid-eastern coast of Korea, were studied from January to November 2009. In total, 381 specimens were collected; fish ranged in size from 15.4 to 59.0 cm in total length. P. olivaceus is a carnivore, mainly consuming other fishes and crustaceans. The prey items of P. olivaceus changed ontogenetically. Small individuals fed on decapod crustaceans while large ones fed heavily on other fishes. The diet of P. olivaceus varied seasonally. Fish comprised the main prey items throughout the year. The stomach contents index (SCI) of each size class increased and the dietary breadth index (DBI) of each size class decreased as individuals grew.