• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.164-165
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• 2001

현재 우리나라에 서식하는 전복은 말전복(Haliotis gigantea), 까막전복(Haliotis discus), 참전복(Haliotis discus hannai), 시볼트전복(Haliotis sieboldii), 오분자기(Haliotis diversicolor superfexta), 둥근전복(Haliotis diversicolor diversicolor) 등 6종이 있고, 이 중 참전복은 가장 맛이 좋아 주로 날 것으로 또는 건제품 및 죽의 형태로 소비되는 고가의 중요한 연안 수산물이다. 특히, 전복은 식품학적 측면으로 볼 때, 오래 전부터 우리나라, 중국 및 일본 등지에서 상당히 귀하게 여기는 기능성 수산물이어서 시장 가치가 매우 높다고 할 수 있다. (중략)

• Journal of Life Science
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• v.26 no.4
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• pp.406-413
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• 2016

Abalones are gastropod mollusks belonging to the genus Haliotis. Pacific abalones are regarded as a very important marine gastropod mollusk in Korea, Japan, China, and also in food industries around the world. In Korea, 6 species of abalone have been reported to occur along the coasts: Haliotis discus hannai, Haliotis discus discus, Haliotis madaka, Haliotis gigantea, Haliotis diversicolor supertexta, and Haliotis diversicolor diversicolor. This study was performed to discriminate the genetic variances by the partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) genes and random amplified polymorphic DNA (RAPD) analysis against four species of Pacific abalone (H. discus hannai, H. discus, H. madaka, H. gigantea). COI gene is reasonably well conserved and has been sequenced in various invertebrate taxa. The RAPD analysis technique is a relatively simple and low cost method that allows differentiation of taxa without the need to know their genomes. In this study, we investigated the genetic diversity, phylogenetic relationships within each species. The COI and RAPD analysis were able to distinguish between H. gigantea and the other three species. However, these analysis methods were inadequate to distinguish between H. discus and H. madaka. These results are believed to be able to provide a basis data for future hybrid breeding research by defining the genetically closely related four species of abalone, which is to develop new hybrid abalone for export using hybrid breeding.

• Journal of Life Science
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• v.26 no.10
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• pp.1218-1223
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• 2016

Abalones are gastropod mollusks belonging to the genus Haliotis. Fishery products are continuously declining worldwide while abalone production from aquatic farms has considerably increased. Although abalones are regarded as very important marine resources and considered to have big potential in sea-food farming industry around world, the slow growth rate of Pacific abalones is considered to be one of the most serious problems. For the genetic improvements in cultured abalone, advances in various breeding techniques for abalone have been reached through the introduction of selection, crossbreeding, hybridization, and polyploidy in several commercially important abalone species. Six species of abalone have been reported to be distributed along the coasts of Korea: Haliotis discus hannai, Haliotis discus discus, Haliotis madaka, Haliotis gigantea, Haliotis diversicolor diversicolor, and Haliotis diversicolor supertexta. The hybridization between these abalones may be one of the advanced technologies, and the preliminary experiments of interspecific hybrids between abalone species distributed in northern pacific areas including Korea, China, and Japan have been conducted. In this study, we reviewed the phylogenetic relationship of northern pacific abalone species which have the potential traits for aquaculture in Korea and their identifications. We also examined the development of molecular markers and some other aspects of the genetic approaches for successful development of hybrids.

• The Korean Journal of Malacology
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• v.25 no.3
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• pp.231-236
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• 2009

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.

• Journal of Life Science
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• v.19 no.8
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• pp.1003-1008
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• 2009

Abalone (genus Haliotis) is a woody species with a long life span that is primarily distributed throughout the world, including Asia. This species is regarded as a very important marine gastropod mollusk in Korea and China, and also in food industries around the world. We evaluated a representative sample of the five species with nuclear ribosomal DNA internal transcribed spacer sequences (ITS) to estimate genetic relationships within the genus. Aligned nucleotide sequences of the length of the 5.8S subunit of all taxa of Haliotis were found to constant of 160 bp nucleotides. However, aligned nucleotide sequences of the length of ITS1 were varied within genus Haliotis, varying from 272 in H. diversicolor aquatilis to 292 in H. discus hannai. Aligned nucleotide sequences of the length of ITS2, especially, vary from 722 in H. diversicolor aquatilis to 752 in H. sieboldii. Total alignment length is 763 positions, of which 78 are parsimony-informative, 57 variable but parsimony-uninformative, and 459 constant characters. H. discus hannai was similar to H. discus, while H. diversicolor aquatilis was more distinct. ITS analysis may be useful in germ-plasm classification several taxa of genus Haliotis.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.622-623
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• 2001

전복류는 세계적으로 100여종으로 알려져 있고, 이중 어획 대상이 되는 대형종은 20여종으로서 주로 온대수역에서 많이 생산되고 있다. 우리나라에 서식하는 전복류는 소형종인 오분자기(Haliotis diversicolor supertexta)를 비롯하여 난류계의 대형종인 말전복(H. gigantea), 까막전복(H. discus), 시볼트 전복(H. sieboldii) 그리고, 한류계인 참전복(H. discus hannai)의 5종이 알려져 있다. (중략)

• The Korean Journal of Malacology
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• v.24 no.2
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• pp.143-151
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• 2008

We studied the management policy for Haliotis diversicolor fisheries in the coastal area of Sungsanpo using Yield-per-recruit model from 2004 to 2006. The age at first capture($t_c$) and fishing mortality(F) annually estimated during the study period decreased and increased, respectively. The maximum yield-per-recruit in 2004 was increased by increasing $t_c$ from the 2.012 year of current $t_c$ to 2.7 year or increasing F from the 0.574/year of current F to 0.800/year, and that in 2005 was increased by increasing $t_c$ from the 1.946 year of current $t_c$ to 2.5 year or increasing F from the 0.578/year of current F to 0.880/year. In 2006, the maximum yield-per-recruit was increased by increasing $t_c$ from the 1.926year of current $t_c$ to 3.1 year or decreasing F from the 1.088/year of current F to 0.810/year. Further, although the current F in 2004 and 2005 was lower than the estimated $F_{MAX}$, that in 2006 was higher than the estimated $F_{MAX}$. These results indicate that the likelihood of growth overfishing with increasing catch of smaller H. diversicolor in 2006 was greater than in 2004 and 2005. As action that could prevent growth overfishing in fisheries management of H. diversicolor, increasing for the current $t_c$ could be a more appropriate policy because the artificial decrease of the number of woman divers related F is actually difficult.

• Animal Systematics, Evolution and Diversity
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• v.21 no.2
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• pp.157-169
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• 2005

Three species of gammaridean amphipods are reported from four cultured abalones in Jeju Island, Korea. These amphipods are Ampithoe uolida Smith, Elasmopus rapax Costa, and Melita rylovae Bulycheva which were found from the abalones Haliotis discus hannai Ino, H. discus Reeve, H. diversicolor aquatilis Reeve, and H. sieboldii Reeve. Elasmopus rapax, a new record to Korean fauna, is described in detail. Other two gammaridean species are briefly described with diagnostic characters. These amphipods and abalones revealed no species-specific relationship and are considered to be simple and accidential associates.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.15 no.2
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• pp.117-122
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• 1982

Abalone, Haliotis diversicolor japonica, is one of the most palatable sea foods in Jeju-Do, Korea : however relatively little is known about the characteristics of its taste. This study was undertaken to establish the basic data for evaluating the taste compounds in the extract of abalone including nucleotides and their related compounds, free amino acids, trimethylamine oxide, trimethylamine and total creatinine. The amount of AMP was $2.21{\mu}mole/g$ while IMP and inosine was trace in content. In the extracts, taurine, arginine and glycine were abundant holding $39.9\%,\;25.4\%,\;14.0\%$ of total free amino acids content respectively, but tyrosine and phenylalanine was trace in content. TMAO, TMA and total creatinine were poor in content marking $5.4mg\%,\;1.0mg\%\;and\;5.0mg\%$. It was presumed that the characteristic flavor of abalone was mainely attributed to free amino acids. Organic acids, nucleotides and their related compounds played auxiliary role in the characteristic flavor of abalone.

• Development and Reproduction
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• v.18 no.1
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• pp.43-49
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• 2014

Three species of Nortamea concinua (NC) and Haliotis discus hannai (HDH) from Tongyeong and Sulculus diversicolor supertexta (SDS) are widely distributed on the coast of the Yellow Sea, southern sea and Jeju Island in the Korean Peninsula under the innate ecosystem. There is a need to understand the genetic traits and composition of three mollusk species in order to evaluate exactly the patent genetic effect. PCR analysis was performed on DNA samples extracted from a total of 21 individuals using seven decamer oligonucleotides primers. Seven primers were shown to generate the unique shared loci to each species and shared loci by the three species which could be clearly scored. A hierarchical clustering tree was constructed using similarity matrices to generate a dendrogram, which was facilitated by the Systat version 10. 236 specific loci, with an average of 56.3 per primer, were identified in the NC species. 142 specific loci, with an average of 44.7 per primer, were identified in the HDH species. Especially, 126 numbers of shared loci by the three species, with an average of 18 per primer, were observed among the three species. Especially, the decamer primer BION-75 generated 7 unique loci to each species, which were identifying each species, in 700 bp NC species. Interestingly, the primer BION-50detected 42 shared loci by the three species, major and/or minor fragments of sizes 100 bp and 150 bp, respectively, which were identical in all samples. As regards average bandsharing value (BS) results, individuals from HDH species (0.772) exhibited higher bandsharing values than did individuals from NC species (0.655). In this study, the dendrogram obtained by the seven decamer primers indicates three genetic clusters: cluster 1 (CONCINNA 01~CONCINNA 07), cluster 2 (HANNAI 08~HANNAI 14), cluster 3 (SUPERTEXTA 15~SUPERTEXTA 21). Comparatively, individuals of HDH species were fairly closely related to that of SDS species, as shown in the hierarchical dendrogram of genetic distances.