• The Korean Journal of Malacology
• /
• v.13 no.2
• /
• pp.109-115
• /
• 1997

Panomya nipponica는 모식산지로 알려진 일본 북동부에서만 발견되는 것으로 알겨져 있으며, 일부학자들은 P. norvegica와 동일종으로 간주하기도 하나 패각의 형태에서는 뚜렷이 차이가 난다. 본 종은 드물게 발견되기 때문에 분류학적 위치가 아직 불분명하며, 일본에서 조차 근래에는 이 종에 대한 인용이나 보고가 거의 없어 동해(일본 북서해0에서 채집되느Panomya nipponica에 대한 종 기재를 하였다.

• The Korean Journal of Malacology
• /
• v.14 no.1
• /
• pp.1-8
• /
• 1998

자웅이체인 배벌레(shipworm), Zachsia zenkewitschi의 생식에 관하여 연구를 진행하였다. 자성 생식기관은 하나의 난소와 소형의 웅성을 안고 있는 한 쌍의 외투막 주머니로 구성되어 있었다. 소형 웅성의 정소는 내장 신경절 주위에 위치하였다. 성숙된 알의 지름은 60$\mu\textrm{m}$이고 난황과 젤리막으로 싸여 있었다. Zachsia zenkewitschi의 정자는 약 2.6$\mu\textrm{m}$의 원추상 두부, 0.5$\mu\textrm{m}$의 첨체, 직경 약 0.9 $\mu\textrm{m}$의 중부로 되어 있었다.

• Proceedings of the Korean Society of Developmental Biology Conference
• /
• 2005.10a
• /
• pp.70-71
• /
• 2005

• Proceedings of the Korean Society of Embryo Transfer Conference
• /
• 2005.10a
• /
• pp.70-71
• /
• 2005

• The Korean Journal of Malacology
• /
• v.25 no.2
• /
• pp.91-92
• /
• 2009

Two molluscan species belonging to Bivalvia (Atrina teramachii Habe) and Cephalopoda (Liocranchia reinhardti Steenstrup) were found new to the Korean malacofauna. The author report, consequently, two additional molluscan species new to the fauna with figures and remarks on slight morphological variation comparing to the original and previous descriptions.

• Proceedings of the Korean Quaternary Association Conference
• /
• 2002.06a
• /
• pp.9-9
• /
• 2002

• The Korean Journal of Malacology
• /
• v.12 no.1
• /
• pp.33-38
• /
• 1996

강원도 동해안에서 채집된 백합과 1종, 대복의 염색체수와 핵형을 분석하였다. 대복의 염색체수는 2n=38이며, 핵형의 구성은 3쌍의 metacentric과 16쌍의 submetacentric염색체로 구성되었다.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.32 no.2
• /
• pp.192-197
• /
• 1999

Proximate composition, sterol and $\alpha$-tocopherol ($\alpha$-Toc) contents of 35 species of marine invertebrates (13 species of Bivalvia, 10 species of Gastropoda, 4 species of Cephalopoda, 4 species of Crustacea, 2 species of Ascidacea and 2 species of Holothuroidea), which caught off the coast of Tongyeong of the Southern sea (Nam-Hae), Korea, were determined. Protein content showed relatively high level in herbivorous (seaweed feeder) and carnivorous species such as Gastropoda ($17.2\pm4.30\%$), Crustacea ($16.8\pm4.06\%$) and Cephalopoda ($15.3\pm3.24\%$), but showed low in plankton feeder and mud swallow such as Bivalvia ($11.8\pm2.49\%$), Ascidacea ($8.20\pm1.00\%$) and Holothuroidea ($3.94\pm1.13\%$). Total lipid (TL) content was low in most marine invertebrates, ranged from $0.24\%$ (blue colored sea cucumbers) to $1.96\%$ (sea squirts). Ascidacea contained the largest amount of TL in all samples, while Holothuroidea contained the smallest amount of TL, and other classes contained about $1\%$ of TL. Carbohydrates was rich in plankton feeder and Herbivorous species (seaweed feeder) such as Ascidacea ($6.60\pm4.53\%$), Bivalvia ($3.15\pm1.82\%$) and Gastropoda ($3.02\pm1.61\%$), while poor in carnivorous species such as Crustacea ($0.52\pm0.57\%$) and Cephalopoda ($1.00\pm0.63\%$). Moisture content was highest in Holothuroidea ($92.0\pm1.94\%$) and the lowest in Gastropoda ($77.0\pm1.95\%$): There were negative correlations between moisture and protein content, or TL, between protein and TL content; y= -0.8716x+184.452 (r=-0.87, p<0.001), $y=128.52e^{-0.0601x}$ (r=-0.55, P<0.001), $y=6.3047e^{-0.0904x}$(r=-0.42, P<0.02), respectively. Sterol content was ranged from 56 mg/100 g edible portion of red colored sea cucumbers to 216 mg/100 g edible portion of cockle and was high in the following order; Cephalopoda (148 $\pm$30.0mg)>Bivalvia (121$\pm$35.0mg)>Gastropoda (118$\pm$20.0mg)>Crustacea (116$\pm$31.0mg)>Ascidacea (78.0$\pm$2.00 mg)>Holothuroidea(62.0$\pm$8.00 mg). Crustacea contained 1$\~$2 mg $\alpha$-Toc/100 g edible portion whereas other classes contained trace or less than 1 mg/100 g of edible portion.

• The Korean Journal of Malacology
• /
• v.23 no.2
• /
• pp.155-164
• /
• 2007

A new species, Arca koumaci Lutaenko et Maestrati n. sp. (Bivalvia: Arcidae), is described from New Caledonia. The species is characterized by the small size, the convex shell with a strong posterior umbonal ridge covered by spikes, the widely curved ventral margin, and presence of cancellate sculpture and convergent marginal teeth. Presence of spikes on the posterior ridge is a unique morphological feature recorded for the first time in the genus. It is proposed that the only subgenus, namely Pliocene A. (Arcoptera) Heilprin, 1887, apart from nominative, can be recognized in the genus. Three morphological types are distinguished within the genus based on shell shape and sculpture. Bathymetric analysis shows that representatives of Arca inhabit water depths down to 175 m, and more than half of Recent species were found below 50 m. Types of A. bouvieri P. Fischer, 1874, Arca boucardi Jousseaume, 1894, Arca avellana Lamarck, 1819, and Arca retusa Lamarck, 1819 are illustrated.

• Korean Journal of Environmental Biology
• /
• v.26 no.4
• /
• pp.279-291
• /
• 2008

The seasonal distribution pattern of the Bivalvia samples collected from 12 stations in Gamak Bay in April, July, September and November from 2001 to 2006. A total of 28 species (226.72$\pm$196.20 ind. m$^{-2}$) were identified. The COD has decreased from 3.30 mg L$^{-1}$ to 1.89 mg L$^{-1}$ level on average and especially, the COD of sediment has decreased from 21.51 mg g-dry$^{-1}$ to 16.99 mg g-dry$^{-1}$ level on average. Therefore, water quality level of Gamak Bay was improved from level 3 to 2. The dominant species over 1.0 percentages were composed of the total 13 species, and they occupied 96.75% of the total density of the Bivalvia. Major dominant species was Musculista senhousia 100.38 ind. m$^{-2}$ (22.16%), Moerella rutila 69.00 ind. m$^{-2}$ (15.23%), Theorafragilis 49.70 ind. m$^{-2}$ (10.97%), Mytilus edulis 42.18 ind. m$^{-2}$ (9.31 %), and Raphia undulata 40.99 ind. m$^{-2}$ (9.05%). This area could be divided into three groups by the cluster analysis based on the total species composition.