• Korean Journal of Ichthyology
• /
• v.18 no.3
• /
• pp.216-222
• /
• 2006

Feeding habits of Pagrus major collected in the coastal waters off Busan from January to December 2004 were studied. P. major ranged form 8.5 to 44.6 cm in standard length. P. major was a carnivore which consumed mainly hermit crabs, amphipods, crabs, shrimps, polychaetes, echinoderms, and fishes. Its diets included small quantities of gastropods, bivalves, stomatopods, cephalopods, cnidarians, and isopods. It showed ontogenetic changes in feeding habits. Small individuals (8~15 cm SL) preyed mainly on shrimps. However, individuals from 15 cm to 25 cm SL preyed mainly on hermit crabs and polychaetes. Individuals over 25 cm SL preyed mainly on fishes and echinoderms.

• Journal of Aquaculture
• /
• v.13 no.4
• /
• pp.309-316
• /
• 2000

Feeding habits of A. luridus were studied by analyzing the stomach contents of monthly collected fish from the intertidal zone of Dodun-ri, Sochon from July 1996 to June 1997. Fullness of stomach increased twice a day, first in the morning and second in the afternoon. A. luridus (1.2-5.9 em in standard length) was a carnivore consuming mainly decapods (natantia larvae, Acetes japonicus, Penaeus japonicus and reptantia larvae), amphipods (caprellids, gammarids and hyperiids) and copepods (Acartia sp., Calanus sinicus, Corycaeus affinis, and Microsetella sp.). Its diets also included minor quantities of isopods, cirriped larvae, polychaete larvae and stomatopods. According to fish size, some changes in feeding habits were apparent, i.e. smaller fish preferred to prey in the following order : copepods < decapods < amphipods. However, as the size increased, decapods and amphipods were selected.

• Korean Journal of Ichthyology
• /
• v.24 no.1
• /
• pp.35-40
• /
• 2012

The feeding habits of yellowback seabream, $Dentex$ $tumifrons$, were studied using 317 specimens collected in the coastal waters of Busan, from January to December, 2004. The size of the specimens ranged from 10.2 to 27.8 cm in standard length (SL). D. tumifrons had turned out a carnivore and opportunistic predator that consumed mainly shrimps. Fishes were next important prey items. Its diet also included anomurans, amphipods, crabs, echinodermata and cephalopods. Polychaetes, stomatopods, bivalves, ostracods, mysids and so on were minor preys. The individuals of smallest size class (10~13 cm SL) fed mainly on shrimps. In the next size class (13~16 cm SL), the proportion of shrimps decreased, whereas the consumption of anomurans, echinodermata and crabs increased. The proportion of these prey items decreased as body size increased, whereas the consumption of fishes gradually increased. Fishes accounted for almost stomach contents of larger individuals (more than 25 cm SL).

• Korean Journal of Ichthyology
• /
• v.25 no.3
• /
• pp.157-162
• /
• 2013

The feeding habits of spearnose grenadier (Coelorinchus multispinulosus) were studied using 361 specimens collected from January to December 2005~2006 in the coastal waters off Gori, Korea. The size of C. multispinulosus ranged from 1.5 to 8.5 cm in anal length (AL). C. multispinulosus was crustacean feeder that consumes mainly consumed shrimps and amphipods. Its diet also included small quantities of copepods, mysids, cumaceans, stomatopods, crabs, polychaetes and fishes. C. multispinulosus mainly consumed shrimps in all size classes and seasons except the smallest size class in summer which mainly consumed amphipods. Smaller individuals secondly consumed amphipods, copepods and mysids, and the portion of these prey items in the total diet decreased as body size.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.54 no.5
• /
• pp.808-813
• /
• 2021

The diet composition of Spanish mackerel Scomberomorus niphonius, was investigated using 853 specimens collected using two-boat trawl, stow net, gill net and set net from January to December 2019 from the South Sea of Korea. The size of the specimens ranged from 25.2 to 114.8 cm in fork length. S. niphonius fed mostly on fishes. Its diets also included small quantities of shrimps, cephalopods, crabs, stomatopods, etc. Among them, Engraulis japonicus was the dominant species. The dietary composition of S. niphonius exhibited significant differences based on their size. The proportion of Trichiurus japonicus increased as body size of S. niphonius increased, whereas the proportion of E. japonicus decreased gradually. As the body size of S. niphonius increased, the mean weight of prey per the stomach (mW/ST) tended to increase significantly (one-way ANOVA, P<0.05).