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돌산도 쇄파대에 사는 쿠마류 Bodotria biplicata의 조하대 대상분포
서해립,구영경,SUH Hae-Lip,KOO Young Kyung 한국수산과학회 1997 한국수산과학회지 Vol.30 No.1
Subtidal zonation of a cumacean Bodotria biplicata was investigated in the sandy shore surf zone of Dolsando, southern Korea. Three replicate samples were taken with a sledge net at three sites, such as the surface and bottom of 1 m depth and waters edge, at hourly intervals over the neap and spring tide cycles on January 1993 (n=225). B. biplicata, the most dominant cumacean in this area, exhibited peak density at the bottom while about $0.6\%$ of total catch was collected at the surface. Mean density during the neap tide cycle was slightly higher than that during the spring tide cycle. The depth of subtidal zone influenced the total catch of B. biplicata. The changes in density were related to the depth of subtidal zone rather than day-night cycle or ebb-flood tide. The results obtained in this study suggest that the diel vertical migration is not distinct. During both neap and spring tide cycles, B. biplicata attained a density maximum at the same level of about 90 cm below lower low water (LLW). It is likely, therefore, that this species performs shore- and seaward horizontal migration fortnightly. The speed and distance of migration may be directly related to the beach slope and tide range. Ontogenetic differences in subtidal distribution were observed. Juveniles and manca larvae tended to occur lower areas than the adults. Such differences may reduce intraspecific competition for diets. 쿠마류 Bodotria biplicata의 조하대 대상분포를 돌산도 모래해안의 쇄파대에서 조사했다. 1993년 1월 소조와 대조때 수심 1m의 표층과 저층, 그리고 바닷가에서 쿠마류를 1조석주기 동안 한 시간마다 썰매 네트로 3회 반복 채집했다(시료수=225개). 조하대에서 가장 우점한 B. biplicata는 저층에서 밀도가 가장 높았고 표층에서는 전체 생물량의 약 $0.6\%$가 채집되었다. 소조때 평균 밀도는 대조때보다 조금 높았다. 채집 생물량은 조하대 수심의 영향을 받았다. 밀도 변화는 주야주기나 밀물-썰물보다 조하대 수심과 더 관련이 있었다. 조사기간에 주야 수직 이동은 뚜렷하지 않았다. 소조와 대조때 모두 B. biplicata 개체군은 낮은 저조 (LLW) 아래 약 90cm 되는 곳에서 밀도가 가장 높았다. 그러므로 이 종은 2주 주기로 해안쪽과 바다쪽으로 수평이동하는 듯하다. B. biplicata가 조하대 모래바닥을 이동하는 속도와 거리는 모래해안의 기울기와 조차에 따라 달라질 것이다. 개체발생 단계별로 분포양상이 달랐고 미성체와 만카유생이 성체보다 깊은 곳에 분포했다. 이것은 먹이를 둘러싼 종내경쟁을 줄이는데 기여할 것 같다.
Stylocheiron abbreviatum (Euphausiacea, Crustacea): A New Record from the Korean Waters
서해립 한국수산과학회 2012 Fisheries and Aquatic Sciences Vol.15 No.3
The euphausiid crustacean Stylocheiron abbreviatum G. O. Sars, 1883 has been found in the southern waters of Jeju Island, Korea. This species is the third member of the genus Stylocheiron and the twelfth of the family Euphausiidae identified in Korean waters. Using descriptions of this species, a key to Korean euphausiids is presented.
서해립,SUH, HAE-LIP The Korean Society of Oceanography 1994 韓國海洋學會誌 Vol.29 No.1
The fish host, Acanthogobius hasta, was sampled monthly (April 1990 to March 1991) from Wando Islands, Korea, and examined for the parasitic Copepod Acanthochondria brevicorpa. Prevalence was positively correlated with fish length; parasitic copepods were only found in fishes > 24 cm TL. distinct seasonal variation in prevalence and intensity of A. brevicorpa infection was observed, although no data were available in April, June and July 1990 when no A. hasta was caught. Averaged over all samples, of the 83 fishes caught, 34.9% were infected with a mean intensity of 3 copepods per host No A. brevicorpa was found on the host between August and October. Ovigerous females of the Copepod were found between February and May, with an abundance peak in May. Young copepodids (Ci to CIII) of A. brevicorpa were not present throughout the year, but only late copepodids of CIV and CV were found on the fish in March and May. Results from the present study suggest that A. brevicorpa mainly produces larvae in spring, and may have a life cycle including additional hosts.
서해립,조수근,김광용,Suh, Hae-Lip,Jo, Soo-Gun,Kim, Kwang-Young The Korean Society of Oceanography 1995 韓國海洋學會誌 Vol.30 No.6
The mysids, Archaeomysis kokuboi and Acanthomysis sp., clearly exhibited the diel patterns of interspecific horizontal migration in the surf zone at a sandy shore in Yongil Bay, eastern Korea. Shoreward migration of Acanthomysis sp. at sunset resulted in the presence of significantly high numbers of mysids after dark at the bottom of 1 m depth. At first light, Acanthomysis sp. moved back to deeper water of>1 m depth in conjunction with a reverse migration by A. kokuboi. In the afternoon, A. kokuboi moved to offshore, then these species remained there. Although A. kokuboi has been considered an intertidal species in the exposed beaches with strong wave action, this is not the case in a sandy beach of Yongil Bay. We suggest that evidence for behavioral adaptation comes from the response of k. kokuboi to the sheltered beaches with weak wave action. The habitat shifts presumably provide this species with high availability of food materials in the surf zone.