• Journal of Species Research
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• v.5 no.3
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• pp.359-363
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• 2016

Two species of parthenopid crabs, Enoplolambrus laciniatus (De Haan, 1839) and Pseudolambrus lobatus (Flipse, 1930), are recorded for the first time from Korean waters. Enoplolambrus laciniatus is similar to E. validus as the only known Korean species of the genus Enoplolambrus, however, it is characterized by having carinated ambulatory legs without teeth on the outer margins of carpi. Pseudolambrus lobatus is the first recorded species of the genus Pseudolambrus from Korean waters, characterized by having a rounded front, short chelipeds, and a carapace with produced angles posterolaterally. The morphologies of these two species are described and illustrated with color photographs herein.

• Fisheries and Aquatic Sciences
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• v.7 no.2
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• pp.84-89
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• 2004

Feeding habits of Sillago japonica collected from in an eelgrass (Zostera marina) bed in Jindong Bay, Korea were studied. S. japonica was a carnivore which consumed mainly gammarid amphipods, polychaetes, bivalves, caridean shrimps and crabs. Its diets also included a small amount of fishes, copepods and caprellid amphipods. The diet of S. japonica underwent significant size-related changes; small individuals (<5cm SL) fed mainly on gammarid amphipods and crab larvae, while proportion of polychaetes and bivalves increased with increasing fish size and gammarid amphipods were also important prey for medium size individuals (5.1-9.9cm SL). The large individuals (>10cm SL) ate polychaetes, caridean shrimps and crabs. The dietary breadth of S. japonica were varied with size. The diet of S. japonica also underwent seasonal changes that could be related to differences in prey availability; gammarid amphipods were mainly consumed in spring and polychaetes in summer.

• The Korean Journal of Ecology
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• v.27 no.2
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• pp.61-65
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• 2004

To elucidate the trophic relationships within a subtropical wetland, the profile of fatty acids in producers, consumers and sediments of the mangrove forest and intertidal mudflat was studied. Results indicated a close relationship in fatty acid profiles between the mangrove plants Aegiceras corniculatum and Avicennia marina and the sesarmid crab Sesarma bidens, and between the fiddler crab Uca arcuata and diatoms. The fatty acid profile of the mudskippers Boleophthalmus pectinirostris and Periophthalmus cantonensis, however, showed a mixed diet of diatoms, macroalgae, protozoa and crabs. Seasonal changes in fatty acid profiles in mangrove plants, sediments and sesarmid crabs were noted. The implication of using fatty acids as tracer of trophic relationships was discussed.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.41 no.1
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• pp.26-31
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• 2008

The feeding habits of chub mackerel (Scomber japonicus) were studied based on an examination of the stomach contents of 512 specimens collected between November 2005 and October 2006 in the South Sea of Korea. The specimens ranged in fork length (FL) from 23.4-37.5 cm. Chub mackerel is a piscivore and consumes mainly Teleosts such as Engraulis japonicus. Its diet also includes amphipods, crabs, Euphausia, chaetognaths and shrimp. Smaller individuals (<26 cm FL) consume mainly crabs. The proportion of these prey items decreases with increasing fish size, and this decrease paralleles the increased consumption of fish. The prey size increases with S. japonicus size.

• Korean System Dynamics Review
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• v.12 no.1
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• pp.59-74
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• 2011

This article deals with an economic evalutation of the 'Pasture Project of Kum River', which is the farming plan of mitten crabs in a stream of it. An augmented model of social capital is based on the past ecological-economic system dynamics model and elaborated further with suggestions of social capital literature. During the modeling process a chain diagram of causal relations and its relevant mathematical equations are presented for simulating the project performance, and the simulation results are provided to contrast the dynamic behaviors of the former ecological-economic model with ones of the new model incorporating social capital. The results indicate that an increase in the economic benefit of the project could happen in case of considering the process of social capital accumulation around the case area, which can be regarded as a remarkable trial to approve the common confidence in the role of social capital to enhance an economic achievement.

• Animal Systematics, Evolution and Diversity
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• v.11 no.4
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• pp.497-508
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• 1995

The ten species , Nobilum japonicum japonicum , Paradorippe granulata, Pilumnus minutes, Carcinoplax vestitus, Eucrate crenata, Uca lactea. Ilyoplax pingi, Nanosesarma gordoni, Achaeus tuberculatus, Parthenope validus, are added to the brachyuran fauna of the Chindo Island and its adjacent islets. With the previsouly known 36 species , total 46 speices from the Chindio I. and its adjacentislets are listed and two grapsid species, Hemigrapsus longitarsis and Sesarma erythrodactyla , are redescribed with illustrations.

• Animal Systematics, Evolution and Diversity
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• v.29 no.2
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• pp.129-135
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• 2013

Two species of crabs, Homola orientalis Henderson, 1888 and Pseudomicippe nipponica (Sakai, 1938), are described and illustrated for the first time in Korea. Homola orientalis was collected at 30 m depth by trap from Busan, and P. nipponica was collected on the intertidal region in Seongsanpo, Jejudo Island. Homola orientalis is the first species of its family in the region. The family Homoldae is characterized by a linea homolica on the carapace and they carry camouflage in the form of sponges or cnidarians with subchelate of the fourth ambulatory legs. The Korean brachyuran fauna now comprises 223 species including the new records from this study.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.34 no.2
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• pp.191-199
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• 1998

Feeding habits of Lateolabrax Japonicus collected from the eelgrass bed in Kwangyang Bay from January 1994 to December 1994 were studied. L. Japonicus was a carnivore which consumed mainly amphipods (gammarid amphipods and caprellid amphipods), crabs, caridean shrimps and copepods. Its diets included small quantities of fishes, mysids, polychaetes, tanaids and isopods. Three distinct ontogenetic feeding groups were noted : (1) 1~2 cm SL individuals preyed heavily on copepods. (2) 2~15 cm SL individuals preyed heavily on amphipods. (3) individuals over 15 cm SL preyed heavily on crabs, caridean shrimps and fishes. L. Japonicus showed seasonal changes in prey composition. These changes were not caused by seasonal changes in food availability, but by changes in the size composition of L. Japonicus occurred in the eelgrass bed.

• Animal Systematics, Evolution and Diversity
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• v.24 no.1
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• pp.17-24
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• 2008

Three crab species, Macromedaeus orientalis, Eriphia smithi, and Ocypode cordimana, from Jejudo Island are recorded for the first time in Korea. M. orientalis was collected under the rocks by SCUBA diving in 20m and at low tidal mark. However, E. smithi and O. cordimana were collected in crevices of the rock at low tidal mark and in a burrow of sand beach at supra tidal mark, respectively. At present, E. smithi is the only species of the genus represented in Korean waters. Including the new records in this study, the established brachyuran fauna in Korea now comprises 203 species.

• Journal of Fisheries and Marine Sciences Education
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• v.23 no.4
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• pp.596-606
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• 2011

This article analyzed the process of concluding the Korea-Russia IUU Fishing Prevention Agreement as a model case for distant water fisheries governance. The research studied co-operations for fisheries between Korea and Russia, the current status of live crabs landed in Korea through IUU fishing and Russia's political position on the IUU issue. Also this article reviewed a series of processes executed to achieve the bilateral agreement to prevent IUU fishing, including researches, intergovernmental negotiations, institutional improvements, public hearings and presentations. There were many things closely linked together such as international FAO-IUU prevention efforts, Russia's IUU fishing issue, Korean importers of Russian live crabs, their local governments and Korean snow-crab gill-net fishermen. These issues were resolved through reasonable reconciliations. This article wants to contribute to be used as a reference for other similar IUU fisheries cases.