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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Korean Journal of Malacology
Journal Basic Information
Journal DOI :
The Malacological Society of Korea
Editor in Chief :
Volume & Issues
Volume 25, Issue 3 - Dec 2009
Volume 25, Issue 2 - Aug 2009
Volume 25, Issue 1 - May 2009
Selecting the target year
Water temperature and salinity tolerance of embryos and spat of the mussel, Musculista senhousia
Liang, Zhuo Liang ; Kim, Young-Hun ; Zhang, Zhi Fang ; Lim, Sang-Min ; Kang, Kyoung-Ho ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 179~187
The effects of water temperature and salinity on embryonic development and spat survival of mussel Musculista senhousia were investigated. Embryos were incubated in water ranging from 0 to
and with salinity from 5‰ to 40‰. Mussel spat were tested in water from 0 to
and with salinity from 0‰ to 100‰. The optimal conditions for mussel embryos were
and salinity from 25‰ to 35‰, based on Within this temperature range, higher temperatures correponded to a shorter duration of the embryonic period. Optimisation of mussel spat survival was at
and salinity from 30‰ to 40‰; both values are higher than those for embryo, which hinted M. senhousia embryos are more vulnerable than spat. Temperatures below
were lethal for embryos, making temperature a feasible method with which to control the large population of M. senhousia in ark-shell farm during its spawning period.
Age and Growth of Purple whelk, Rapana venosa (Gastropoda: Muricidae) in the West Sea of Korea
Choi, Jong-Duk ; Ryu, Dong-Ki ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 189~196
Based on 1,260 samples, the age and growth of purple whelk, Rapana venosa (Valenciennes) (Gastropoda:Muricidae) have been investigated. The samples were collected monthly during one year time (from February, 2004 to January, 2005) from the West Sea of Korea. The age of R. venosa was determined by the ring of the operculum analysis. The relationship between whelk's shell height and ring radius in each ring group was expressed as an equation of linear regression and later a correspondence in each ring formation was determined. Based on the monthly variations in the marginal index (MI) of the operculum, it was assumed that the ring of this species has been formed once a year during the period from July to August. The relationship between shell height and shell width was expressed by the equation SW = 0.7867 SH - 6.3988 (
=0.8604); and between shell height and total weight by the equation
=0.8324). The purple whelk's spawning period was estimated through the fatness analysis and has occurred during the period from May to July. Obtained results suggests that the ring formation occurs once a year (in July) and the length of time period since the first ring has been formed on the operculum is approximately 13 months (1.08 year). The purple whelk's growth curves for shell height and total weight fitted to the von Bertalanffy's equation and were expressed as follows:
Genetic characteristics of Pacific abalone, Haliotis discus hannai in Dokdo Island, Korea
Park, Choul-Ji ; Lee, Jeong-Ho ; Noh, Jae-Koo ; Kim, Hyun-Chul ; Min, Byoung-Hwa ; Myeong, Jeong-In ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 197~201
This study was conducted to investigate the genetic characteristics of wild population of Pacific abalone, Haliotis discus hannai in Dokdo island. We used six polymorphic microsatellite marker to investigate the genetic diversity and population structure. The loci Hdh1321 and Hdh512 had the highest number of allele (34 and 22 respectively) and loci Hdh145 and Awb083 had the lowest (5 and 7 respectively). The mean number of allele per locus was 14.8. The average observed and expected heterozygosities were 0.664 and 0.824 respectively, and the average
was 0.195. We compared the population genetic parameters of Dokdo population with previously published data of the same species. At the result, the parewise
test showed significant difference between the Dokdo population and six populations (published data), suggesting that the genetic relationship of Dokdo population was separated from six populations.
Optical properties and color analysis of various pearl shells
Lee, Myung-Jin ; Chae, Weon-Sik ; Seo, Jin-Gyo ; Park, Jong-Wan ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 203~210
Optical properties and color analysis of nacreous layers were performed using various pearl shells. The cross section and microstructure of the surface in each nacreous layers were observed through a SEM (Scanning Electron Microscope), and the diffraction pattern on SEM images was analyzed using FFT (Fast Fourier Transform). Through these analysises, it was verified that the color and optical characteristics are closely related to the structure of nacreous layers. Incident angle-dependent reflection spectrum was used to examine the phenomena of color differenceas the direction of observation. Quantified values on the color change were obtained by CIE
color scale. Using this research, database for the characteristics of natural pearl shells can be established, and the precise analytic method for observation of pearl shells was suggested.
New Record of brackish water snail, Iravadia (Fluviocingula) elegantula (Sorbeoconcha:Iravadiidae), in Korea
Lee, Jun-Sang ; Min, Duk-Ki ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 211~212
One Iravadiid shell Iravadia (Fluviocingula) elegantula (A. Adams, 1861), from the brackish waters in Kangwon-do was recorded as new to the Korean molluscan fauna. The shell is typically solid and narrowely ovate-conic. The protoconch is small, planorboid to depressed dome-shaped, typically with a minute first whorl. Including the new records in this study, the family Iravadiidae contained 2 genera and 3 species in the Korean water.
The study on bioaccumulation of heavy metals in the cultured Pacific oyster, Crassostrea gigas, along the coast of Tongyeong, Korea
Cho, Sang-Man ; Kim, Yeong-Hwan ; Jeong, Woo-Geon ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 213~222
In order to investigate contamination of heavy metal in seawater and cultured oyster, samples were collected November 2003 to July 2004 from 12 sites (13 sites for seawater) along the coast of Tongyeong, Korea. The mean concentrations of metal in oyster tissues were as follows: 0.09 (0.01-0.3)
for Cd, 0.47 (0.01-1.4)
for Cr, 0.59 (0.2-2.3)
for Ni, 1.02 (0.1-4.2)
for Pb and 0.48 (0.01-3.9)
for Hg in the seawater, whereas 2.45 (0-5.47) mg/kgDW for Cd, 3.63 (0.10-12.91) mg/kgDW for Cr, 3.2 (0.01-15.73) mg/kgDW for Ni, 3.51 (0.01-6.47) mg/kgDW for Pb and 0.39 (0.004-0.74) mg/kgDW for Hg, respectively. Most metal concentration values were below the permissible range for the related regulations. Mean bioconcentration factors (BCF) for each metal were as follows: 38,964 (1,771-207, 171) for Cd, 9,583 (1,231-80, 162) for Cr, 191 (3-20, 980) for Ni, 1,416 (245-5, 207) for Pb and 180 (5-716) for Hg, respectively. The BCF values from this study corresponded to the transitional phase from the pristine to the contaminated waters. Notably, Cd showed the highest BCF, which suggest that the Pacific oyster could be utilized as a useful biomarker for Cd contamination in sea water. The multidimensional scaling analysis suggested that the metal contaminants are mainly originated from combustion of fossil fuel and accumulated to oyster through food web.
Molecular cloning and expression pattern of Metallothionein Gene from the left-handed shell, Physa acuta
Jo, Yong-Hun ; Baek, Moon-Ki ; Kang, Se-Won ; Lee, Jae-Bong ; Byun, In-Seon ; Choi, Sang-Haeng ; Chae, Sung-Hwa ; Kang, Jung-Ha ; Han, Yeon-Soo ; Park, Hong-Seog ; Lee, Yong-Seok ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 223~230
Metallothioneins (MTs) play a key role in metallic homeostasis and detoxification in most living organisms. In an attempt to study the biological functions and significance of MT in a snail, we cloned and partially characterized the MT gene from the left-handed snail, Physa acutawhich has been regarded as a potential biomonitering species for fresh water. The complete cDNA sequence of PaMT cDNA was identified from the expressed sequence tag (EST) sequencing project of Physa acuta. The coding region of 180 bp gives 60 amino acid residues including the initiation methionine and termination codon. Clustering and phylogenic analysis of PaMT with other MT amino acid sequences show that it has some identities to Helix pomatia (60%), Arianta arbustorum (58%), Perna viridis (49%), Mytilus edulis (49%), Bathymodiolus azoricus (49%), Bathymodiolus azoricus (48%) and Bathymodiolus sp. FD-2002 (48%). Time dependent induction for PaMT from P. acuta exposed with cadmium (50 ppb) indicated that PaMT was induced at 4-8 hr after exposure. It remains to further develop PaMTas a potential biomarker for water contamination in fresh water.
Biological environmental characteristics in Habitats of an abalone Haliotis diversicolor in the eastern coast of jeju-do, Korea
Yoo, Joon-Taek ; Choi, Young-Min ; Yang, Moon-Ho ; Im, Yang-Jae ; Ko, Joon-Chul ; Chang, Dae-Soo ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 231~236
This study describes biological environmental characteristics in natural habitats of Haliotis diversicolor in the coastal area of Sungsanpo located in the eastern coast of Jeju-do, Korea. The field survey was monthly conducted from May 2006 to February 2007. H. diversicolor, sea urchin, turban shell and marine algae were collected by two divers using SCUBA. The species composition of demersal fishes were seasonally investigated by fish traps in 2007. During the study period, more than 67% of H. diversicolor and sea urchin were found in the depth shallower than 5 m, and more than 64% of turban shell were found in the depth deeper than 3 m. The dominant algal species in May were generally Undaria pinnatifida, Ecklonia cava, Sargassum. spp. and coralline algae. Most of demersal fishes collected by the fish traps were wrasses which have been reported as a major predator of young abalone.
Sakhalin-Kurile Species of Pearl Mussels (Bivalvia: Margaritiferidae) from Transbaikalye
Klishko, Olga K. ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 237~242
Two species of pearl mussels, Dahurinaia (Kurilinaia) laevis и D. (K.) zatravkini, inhabiting fresh waters of Sakhalin, South Kurile and Japan Islands, were found in the upper Amur River drainage basin (Transbaikalye). Considerable likeness of morphological and morphometric shell characters with island species is shown. The problem of ancientorigin of pearl mussels of Transbaikalye is discussed.
Rediscovery of Sinotaia quadrata (Architaenioglossa: Viviparidae) of Kumpung Reservoir in the Jellabuk-do, Korea
Lee, Jun-Sang ;
The Korean Journal of Malacology, volume 25, issue 3, 2009, Pages 243~245
The freshwater snails were collected from Kumpung reservoir in Jellabuk-do on June 6, 2009 and identified into Sinotaia quadrata (Benson, 1842) of the family Viviparidae. The S. quadrata has been known as the only species list, without habitat and morphological information in Korea. So, this paper was dealt with the taxonomic account and illustration for description of S. quadrata in the Korea.