• 제목/요약/키워드: molluscs

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울릉도 및 독도산 후새류(연체동물 문: 복족 강) (Opisthobranchs (Molluscs: Gastropodal from Ullung and Dog-do Islarlds, Korea)

  • 최병래;이종락
    • 한국동물학회지
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    • 제37권3호
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    • pp.352-376
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    • 1994
  • Fifteen species in 10 families of Opisthobranchia were collected from Ulung and Dog-do Islands, Korea. Eight species of them, Cadlina japonica Baba, Aldisa cooperi Robilliard & Baba, Dendrodoris denisoni (Angas), Tritonfu festive (Steams), Notobryon mardi Odhner, Hermissendo crussicornis (Eschscholtz), Sakuraeolis monesto (Bergh) and Protaeolidiella atru Baba were not recorded in Korean waters previously. In addtion to these 8 species, 5 species of Aplvsia purvufa Guilding in Miirch, Bethellino citrine (Riippell & Leuckart), Pfeurobronchoeo iaponica Thiele, Chromodoris tinctorio (Ri'spell & Leuckart), and Hypselodoris festive (A. Adams) are new to the fauna of Ullung and Dog-do Islands.

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패류에 기생하는 원생동물 Perkinsus의 연구 동향 ((Perkinsus spp, Protozoan Pathogens in Marine Molluscs))

  • 최광식
    • 한국동물학회:뉴스레터
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    • 제18권1호
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    • pp.34-40
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    • 2001
  • Perkinsus 속은 원생동물문에 속하며 현재 세계적으로 5종이 보고되고 있다. 이들은 모두 기생생물로 수산업적으로 매우 중요한 해산 패류에 막대한 피해를 입히고 있다. Perkinsus는 국내의 경우 1995년에 바지락에서 발견되었으며 일부 바지락 양식장에 있어 바지락 대량 폐사에 직, 간접적으로 영향을 미치고 있는 것으로 보고되고 있다. 국내에서 발견된 Perkinsus는 아직 정확한 분류학적 위치가 밝혀지지 않고 있으나 일본에서 발견된 종 및 유럽에서 발견된 Perkinsus atlanticus와 매우 유사한 종으로 간주된다 이 논단에서는 해산 연체동물에 기생하는 Perkinsus의 생활사, 조직병리학적 관찰, 생태적 특성 및 최근의 연구 동향 등을 보고하고자 한다.

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水산物 非系統생산量 調査에 關한 標本設計 (A Sampling Design on the Survey of Non-Consignment Fishery Products)

  • 朴弘來
    • Journal of the Korean Statistical Society
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    • 제9권2호
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    • pp.213-217
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    • 1980
  • This paper aimed at studying an efficient sampling design of the survey for non-consignment fishery products including both marine fisheries and seaculture. An analysis was done on the relationship between precision and sample size. On the basis of the analysis, the sample size was determined to be 1,080 fishery house holds with the expected precision of 4%-5%. The molluscs and seaculture were recognized to be correlated with the non-consignment products. An attempt was made to investigate the coverage of the fish kinds by the sample about 100 fish kinds were found in the 80 selected sample villages, whereas the population includes about 120 in total. This shows that the sample represents the population with satisfaction.

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Identification of Antioxidative Component of Marine Microalgae

  • Kim, Se-Kwon;Baek, Ho-Chul;Lee, Sang-Hun
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.144-145
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    • 2001
  • Marine microalgae are used extensively in mariculture as food for marine animals, in particular larval and juvenile molluscs, crustaceans and fish. A wide range of microalgae has been tested, because not all species are equally successful in supporting growth of a particular animal. In addition, bioactivities of marine microalgae are recently investigated for the effective exploitation of unutilized marine resources. (omitted)

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목포 인근 해역 펄 조간대의 저서동물 군집 (Macrozoobenthic Community on the Mud-tidalflat around Mokpo Coastal Area, Korea)

  • 임현식;박경양;임병선;이점숙;주수동
    • The Korean Journal of Ecology
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    • 제20권5호
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    • pp.355-365
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    • 1997
  • Macrozoobenthic community structure was studied on the mud-tidalflat around Mokpo coastal area, Korea, from September 1995 to May 1996. Ten sampling stations were chosen along the 1km transect with a 100 m intervals. Triple macrozoobenthos sampling were conducted with a stainless box core sampler (size $13{\times}22{\times}30$ cm) at each station on the seasonal basis. A total of 119 species of macrobenthos was sampled with a mean density 2,357 $ind./m^2$ and biomass of 180. 94 $g/m^2$ during the study period. Of these species, there were 51 species of mollusce (43%), 36 of crustaceans (30%), 27 of polychaetes (23%). Molluscs were density-dominant faunal group with a mean density of 1,804 $ind./m^2$, comprising of 75% of the total density of the benthic animals. It was followed by polychaetes with 347 $ind./m^2$ (15% of the total density). Molluscs were biomass-dominant faunal group with a mean biomass of 147.51 $g/m^2$ (82% of the total biomass). The number of species, abundance and biomass showed increasing trends toward the lower intertidal stations from the higher stations. Major dominant species were Musculista senhousia (bivalve), Capitellidae spp. (polychaetes) with a density of 1,640 $ind./m^2$ and 179 $ind./m^2$ , respectively. The density of M. senhousia was more than 63% of the total density of benthic organism on the tidal area. Small gastropod Cerithideopsilla umumriensis was another dominant epifaunal species between st.1 and 2 with a mean density of 100 $ind./m^2$. Cluster analysis showed that the benthic community could be divided into three stational groups, that is, upper, middle and lower groups by the exposure duration.

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한강 하구역의 저서동물상 (Benthic Fauna on the Hangang Estuary)

  • 길현종;노현수;백상규;송성준;최병래;김원
    • 환경생물
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    • 제23권3호
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    • pp.250-256
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    • 2005
  • 한강 하구역에 서식하는 저서동물상에 관한 연구는 2004년 10월 4일과 2004년 10월 21일 양일에 걸쳐 모두 2회, 7개 지점에서 실시되었다. 본 조사 결과 연체동물의 이매패류 (Limnoperna fortunei 민물담치, Corbicula felnouilliana 콩재첩)와 환형 동물의 다모류 (Neanthes japonica 참갯지렁이, Nephrys caeca 북방백금갯지렁이)가 각각 2과 2종이 채집되었으며, 절지동물의 십각류(Palaemon carinicauda 밀새우, P. annandalei 실다리밀새우, P. modestus 각시흰새우, Ilyoplax deschampsi 펄콩게, Eriocheir sinensis 참게, Eriocheir leptognathus 애기참게, Sesarma dehaani 말똥게)는 모두 4과 7종이 동정 되었다. 조사결과 4종 (Limnoperna fortunei 민물담치, Neanthes japonica 참갯지렁이, Nephtys caeca 북방백금갯지렁이, P. modestus 각시흰새우)이 본 지역에서 처음으로 보고 되는 것으로 밝혀졌다.

복족류 ( 연체동물 ) 의 18S ribosomal DNA 의 염기서열 분화 (Sequence Divergence of 18S ribosomal DNA of Gastropods ( Molluscs ))

  • Sook Hee Yoon;Seung Yeo Moon;Byung Lae Choe
    • 한국패류학회지
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    • 제12권2호
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    • pp.85-90
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    • 1996
  • 3종의 복족류(Rapana venosa, Reishia bronni, Anthosiphonaria sirius)와 1종의 다판류, Lepidosona(Lepidosona) coreanica에 대한 18S ribosomal DNA의 염기서열을 밝히고 이들을 이미 보고된 18종의 이매패류, 2종의 복족류 그리고 1종의 다판류의 염기서열과 비교분석하였다. 그 셜과 복족류는 V4 region에서 다른 연체동물과 구별되는 독특한 inseerted sequinces를 가지고 있었으며, V2 region에서 복족류(Prosobranchia와 Pulmonata)와 이매패류(Pteriomorphia 와Heteerodonta) 각각의 두 아강들이 서로 다른 특징적인 insertions 또는 deletions으로 구분되었다.

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Development of Assistive Mobility Equipment Modeled on Pedal Crawling Locomotion of Terrestrial Gastropod

  • Morikawa, Hirohisa;Fujihara, Ryousen;Fukaya, Yuhya;Kobayashi, Shunichi;Sakai, Hiroshi
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 The Korea-Japan Joint Symposium
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    • pp.79-80
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    • 2003
  • In order to develop an indoor assistive mobility equipment, we paid attention to the mechanism of locomotion in a snail, or a terrestrial gastropod molluscs. It is known that the snail moves by propagation of a pedal wave generating on a pedal surface of the snail and a pedal locomotion has flexibility far ground condition. An air mattress with a function of a pedal-like locomotion mechanism was developed and the performance of the pedal locomotory air mattress as mobility equipment was discussed.

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A Report on Five New Records of Nudibranch Molluscs from Korea

  • Jung, Daewui;Lee, Jongrak;Kim, Chang-Bae
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.124-131
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    • 2014
  • The Korean nudibranch faunal study has been conducted since 2011 and five species including Dermatobranchus otome Baba, 1992, Mexichromis festiva (Angas, 1864), Noumea nivalis Baba, 1937, Hoplodoris armata (Baba, 1993), and Okenia hiroi (Baba, 1938) were newly reported with re-descriptions and figures. Also, Noumea purpurea Baba, 1949 was re-described with illustrations because previous records for this species were given without a description. Two congeneric species in the genus Noumea could be distinguished by ground color, dorsal markings, color of the mantle edge and gills, and mantle and dorsal marking. In addition, mitochondrial cytochrome c oxidase subunit I (COI) sequences of five species were provided for further molecular identification study. Consequently, a total of 43 species have been reported for the Korean nudibranch fauna.

전복의 지질에 관한 연구(II) 전복 및 수종의 패류의 프라스마로겐의 알데하이드의 조성 (STUDIES ON THE LIPIDS OF ABALONE(II) The Aldehyde Composition of Plasmalogen From Abalone and Some Marine Molluscs)

  • 조용규;진만부
    • 한국수산과학회지
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    • 제12권3호
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    • pp.181-189
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    • 1979
  • 1. 전복, 소라, 북방조개, 가리비의 중요한 인지질은 choline phosphatides, ethanolamine phlosphatides, serine phosphatides, cardiolipin, sphingomyelin 및 lyso choline phosphatides 였다. 2. 이들 plasmalogen은 거의 대부분이 ethanolamine phosphatides에 존재하고, choline phosphatides에는 소량존재하였으며, serine phosphatide에는 전연발견되지 않았다. 3. 전복의 ethanolamine plasmalogen 함량은 1월에 채취한 것에는 $3.5\%$, 7월에 채취한 것에는 $17.2\%$였다. 또, 소라, 북방조개에는 각각 그 함량이 $20.7\%,\;15.1\%$였다. 가리비에는 ethanolamine phosphatides에 plasmalogen이 $18.8\%$ 존재하였다. 4. 전복 및 소라의 중요한 plasmalogen의 aldehyde 조성은 stearyl aldehyde $(C_{18:D})$, palmityl aldehyde $(C_{16:0})$, Palmitoleyl aldehyde $(C_{16:1})$ 및 oleyl aldehyde $(C_{18:1})$ 인데 대하여, 2매패인 북방조개, 가리비에는 eicosamonoenal $(C_{20:1})$$14-22\%$ 정도함유 되어 있어 권패와 대조적이였다.

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