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가시망둑 ( Pseudoblennius cottoides ) 의 식성
허성회(Sung Hoi Huh),곽석남(Seok Nam Kwak) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.1
Feeding habits of Pseudoblennius cottoides collected from the eelgrass bed in Kwangyang Bay from January 1994 to December 1994 were studied. Pseudoblennius cottoides was a carnivore which mainly consumed fishes, caridean shrimps, and amphipods. Its diets included small quantities of tanaids, copepods, isopods, mysids, and polychaetes. It showed ontogenetic changes in feeding habits. Fishes were heavily selected as the body size of P. cottoides increases. Fishes and caridean shrimps were major prey organisms for all seasons.
가덕도 주변 해역 어류의 종조성과 계절 변동 - 1. 소형 기선저인망에 의해 채집된 어류 -
허성회(Sung Hoi Huh),안용락(Yong Rock An) 한국수산과학회 2000 한국수산과학회지 Vol.33 No.4
The species composition and seasonal variation of fish assemblage in the coastal water off Gadeok-do, Korea were studied using the monthly trawled samples through a year of 1998. During the study period, 110 species of fishes from 57 families were collected. Repomucenus valenciennei, Thryssa kammalensis, Leiognathus nuchalis and Zoarces gilli dominated the fish assemblage throughout the year, and were responsible for 57.6% and 37.2% in the number of individuals and biomass, respectively. Fish species of secondary importance in abundance were Sillago japonica, Apogon lineatus, Pholis fangi, Engraulis japonicus, Thryssa adelae, Pholis nebulosa, Conger myriaster, Liparis tanakai, Acentrogobius pflaumii, Limanda yokohamae, Chaeturichthys hexanema, Erisphex pottii and Cynoglossus abbreviatus. Higher numbers of species were collected in spring and autumn than in summer and winter. Abundance was high in spring and autumn, and low in summer and winter. Species diversity indices showed that the fish assemblage was more diverse in autumn than any other seasons.
허성회(Sung Hoi Huh),안용락(Yong Rock An) 한국수산과학회 1999 한국수산과학회지 Vol.32 No.6
Species composition and seasonal variation of a shrimp assemblage in the coastal waters of Kori, Korea were studied based on the monthly trawled samples through a year of 1996. In the study period, 11 species of shrimps from 6 families were collected. Of these Crangon affinis predominated throughout the year. The peak abundances occurred in June and November, and low ones in winter and early autumn. More species were collected in winter and spring than summer and autumn. Species diversity indices showed that the shrimp assemblage was more diverse in winter than spring and autumn. Predominance of C. affinis in June, July and November caused high abundances and low diversity indices. The shrimps in the study area can be grouped into two groups on the basis of their occurrence patterns: resident species and seasonal spe챠es.
광양만 잘피밭에 서식하는 복섬 ( Takifugu niphobles ) 유어의 식성
허성회(Sung Hoi Huh),곽석남(Seok Nam Kwak) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.6
Feeding habits of juvenile Takifugu niphobles collected from the eelgrass bed in Kwangyang Bay were studied. T. niphobles (2∼8 ㎝ SL) was a carnivore which consumed mainly amphipods (gammarid and caprellid amphipods), crabs, shrimps and gastropods. Its diets included minor quantities of polychaetes, copepods, tanaids and isopods. T. niphobles showed ontogenetic changes in feeding habits. Small individuals preyed mainly on gammarid amphipods, caprellid amphipods and gastropods. Howerer, crabs and shrimps were heavily selected with increasing fish size.
광양만 잘피밭에 서식하는 붕장어 ( Conger myriaster ) 의 식성
허성회(Sung Hoi Huh),곽석남(Seok Nam Kwak) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.5
Feeding habits of Conger myriaster collected from the eelgrass bed in Kwangyang Bay from January 1994 to December 1994 were studied. C. myriaster was a carnivore which consumed mainly fishes, shrimps arid crabs. Its diets included small quantities of amphipods, gastropods, cephalopods, polychaetes, mysids, cumaceans and isopods. It showed ontogenetic changes in feeding habits. Small individuals preyed on shrimps, fishes, crabs, and gammarid amphipods in nearly equal proportions. While the portion of the stomach contents attributable to shrimps and gammarid amphipods decreased with increasing fish size, consumption of fishes increased progressively. C. myriaster showed vary constant prey selection regardless of prey availability. Especially fishes were heavily selected by this species throughout the year, although availability of fishes was lower thin any otter prey organisms in the eelgrass bed.
허성회(Sung Hoi Huh),안용락(Yong Rock An) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.4
Seasonal variation of the crab community in the eelgrass (Zostera marina) bed in Kwangyang Bay was studied based on the monthly collections through a year of 1994. The crab community in the eelgrass bed was composed of 21 species representing 12 families. The community was dominated by Charybdis japonica, Telmessus acutidens, Hemigrapsus penicillatus, and Pugettia quadridens. Crabs collected in the study area were primarily small-sized species or early juveniles of large crab species. Most individuals had carapace width smaller than 25 ㎜ except C. japonica and T. acutidens which had maximum carapace width over 85 ㎜. More than 5 species were collected every month except January and February (4 and 3 species, respectively). The peak abundance occurred in August and low abundances in autumn and winter. Species diversity indices showed that more diverse crabs were collected in spring and stammer, and lesser ones in autumn and winter. The crabs in the study area can be grouped into three groups on the basis of their occurrence patterns: resident species, seasonal species, and temporary species. More abundant and more diverse crabs were collected during nighttime than daytime.
광양만 잘피밭에 서식하는 날개망둑 ( Favonigobius gymnauchen ) 의 식성
허성회(Sung Hoi Huh),곽석남(Seok Nam Kwak) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.3
Feeding habits of Favonigobius gymnauchen collected from the eelgrass bed in Kwangyang Bay from January 1994 to December 1994 were studied. Favonigobius gymnauchen was a carnivore which consumed mainly gammarid amphipods, polychaetes, crabs and copepods. Its diets included minor quantities of gastropods, tanaids and isopods. It showed ontogenetic changes in feeding habits, Small individuals (1∼2 ㎝) fed mainly on gammarid amphipods, polychaetes, and copepods. While the portion of the stomach contents attributable to polychaetes and crabs increased steadily with incensing fish size, consumption of copepods decreased progressively. Gammarid amphipods were the most selected prey item for all size classes. Although gammarid amphipods, polychaetes, crabs and copepods were major prey organisms far all seasons, the relative proportion of these food items chanced with season. Consumption of copepods was relatively high in spring and fell and consumption of gammarid amphipds, polychaetes and crabs was relatively high in summer.