• 수산경영론집
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• 제47권3호
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• pp.15-33
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• 2016

This study aims to analyze effectiveness of the resource use under the total allowable catch system (TACs) of Comb pen shell, a species among TAC targeting ones through its stock assessment based on the surplus production model such as the Clark Yoshimoto Pooley (CYP) model. Particularly, this study is separated into five analysis periods in order to understand changes in Comb pen shell resource and its efficient use after TAC system implemented in 2001. The results of this study are as follows. First, five sustainable yield curves (SYCs) and exponential growth functions (EGFs) produced by the surplus production model based on Gompertz growth function to compare before and after implementation of the Korean TAC system show that the TAC system has generated a positive stock rebuilding effect for Comb pen shell caught by the diver fishery since 2001. Secondly, five profits based on differences between the sustainable total revenue (STR) and the total cost (TC) with respect to fishing efforts present that the TAC system has increased efficiency of resource use of Comb pen shell caught by the diver fishery after implementation of the Korean TAC system. In conclusion, the Korean TAC system has increased efficiency of resource use as well as has led a positive stock rebuilding effect for Comb pen shell.

• 한국발생생물학회지:발생과생식
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• 제26권3호
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• pp.127-133
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• 2022

The seven oligonucleotides primers were consumed to produce the quantity of unique loci shared to each pen shell team (ULSEPT) and quantity of loci shared by the binary pen shell teams. 154 quantities of LSBPP, with a mediocre of 22.0 per primer, were noticed in the binary pen shell (Atrina pectinata) teams. 328 fragments were recognized in the pen shell team A (PSTA), and 257 in the pen shell team B (PSTB): 77 quantities of ULSEPT (23.48%) in the PSTA and 121 (47.08%) in the PSTB. The band-sharing amount (BS amount) between entity's no. 01 and no. 05 was the highest (0.884) between the binary PSTs. The median band-sharing amount of entities in the PSTA (0.685±0.011) was higher than in those invented from the PSTB (0.640±0.009) (p<0.05). The highest genetic distance presenting substantial molecular difference was between entities PECTINATA no. 06 and PECTINATA no. 04 (0.498). Through this study, it is possible a certain degree to contribute to increasing the cultivation of pen shells, conservation of species, protection of the natural environment, and preservation of ecosystems.

• Animal Systematics, Evolution and Diversity
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• 제33권3호
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• pp.169-175
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• 2017

In the northwestern Pacific region, the pen shell (Atrina pectinata) is a widely distributed bivalve and economically important in fisheries. Recently, stock of this species has been greatly reduced due to overexploitation and marine pollution, which arouses interest in conservation. Studies on genetic and taxonomic entities of pen shells have not been tried in Korea, which makes difficult to take measures for effective conservation of this marine resource. In this study, we investigated mitochondrial genetic polymorphism of pen shells collected from 4 locations in Korea and Japan using cytochrome c oxidase I (COI) gene sequences. A total of 39 haplotypes were identified among 86 individuals of pen shell. Although only 5 haplotypes were shared, no significant genetic differentiation was observed between Korean and Japanese populations. These results suggest that pen shell populations of these regions share an ancestral population which might have experienced expansion during the Pleistocene, but gene flow must have been highly restricted after expansion.

• 한국식품과학회지
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• 제27권6호
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• pp.964-971
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• 1995

키조개 부산물로 부터 향미제로 응용하기 위하여 제조한 가수분해물의 유리아미노산 및 휘발성 향기성분을 분석한 결과, 유리아미노산의 경우 가수분해물이 생시료에 비해 3배 이상 증가하였으며 taurine의 함량이 가장 많았다. 그리고 생시료와 가수분해물의 휘발성 향기성분을 분석한 결과 총 109종의 화합물이 동정되었는데 이중에서 생시료는 88종, 가수분해물은 65종이 검출되었다. 그리고 이들은 주로 알데히드류(16종), 케톤류(17종), 알콜류(31종), 함질소화합물류(16종), 방향족화합물류(8종), 에스테르류(3종) 및 기타 화합물류(17종)으로 구성되어 있었다. 특히 생시료에서의 산화취 성분인 알데히드류 및 방향족화합물은 가수분해물에서 상당량 감소되었으며 반면에 고소한 향기성분인 heterocyclic 화합물이 상당량 검출되었다.

• 한국수산과학회지
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• 제51권6호
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• pp.632-639
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• 2018

To develop the high-value added seafood products from a regional speciality seafood, the seasoned dried pen shell Atrina pectinata adductor (SDPA) and seasoned smoke-dried pen shell adductor (SSPA) samples were prepared, and their optimal processing conditions, quality metrics, and shelf-life characteristics were examined. SDPA and SSPA samples were produced by thawing of frozen pen shell adductor, and cutting it into 6-7 mm slices, hot-air drying ($60^{\circ}C$, 20 min) or smoking ($110^{\circ}C$, 20 min), seasoning ($4^{\circ}C$, 12 h) with seasoning powder (60% sorbitol, 15% sucrose, 16% salt and 9.0% monosodium glutamate), hot-air drying ($60^{\circ}C$, 3 h), torching, vacuum-packaging in a laminated plastic film bag, heat treating with hot-water ($85^{\circ}C$, 15 min), and cooling. The moisture content of SDPA and SSPA samples was 44.5 and 43.0%, respectively, and the water activity was 0.845 and 0.842. The total amino acids in SDPA and SSPA samples were 20,986.8 and 21,312.4 mg/100 g, respectively, and the major amino acids in both products were aspartic acid, serine, glutamic acid, proline, glycine, alanine, valine, leucine, phenylalanine, lysine and arginine. The primary minerals were Na, S, K and P. Incubating tests indicated that the quality of SDPA and SSPA samples was maintained for 30 days of storage.

• Ocean and Polar Research
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• 제38권1호
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• pp.21-33
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• 2016

Gametogenesis of the comb pen shell, Atrina pectinata (Linnaeus, 1767) (Bivalvia: Pinnidae) on the southern coast of Ulleungdo Island, Korea was assessed monthly (November 2013 to October 2014) using histology. Gametogenesis commenced in January when the surface water temperature was $12.6^{\circ}C$ and pen shells evidenced an early development phase with small oogonia from January to April, although few females exhibited ripe eggs in their follicular epithelium. In April, the oocyte diameter increased rapidly, and fully mature eggs appeared in May. First spawning males and females were observed in June as the surface water temperature reached $19.3^{\circ}C$ and July ($23.2^{\circ}C$) respectively. The spawning activity continued until the end of September. Histology indicated that the spawning peak of the females in Ulleungdo Island was July to August. During October to January, most of the pen shells were in spent and resting stages. Our data suggested that A. pectinata is a summer spawner, and their annual gametogenesis is closely associated with the seasonal variation in the surface water temperature. The present study is the first provided fundamental information on the life history of A. pectinata in Ulleungdo Island, and this can be put to good use in the management of this pen shell in the study area.

• 한국수산과학회지
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• 제32권2호
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• pp.175-179
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• 1999

가공 및 이용율이 낮은 패류를 이용한 정미성분의 효과적인 추출방법과 분말 조미료의 제조조건을 검토한 결과를 요약하면 다음과 같다. 패류에 함유된 정미성분의 추출은 열수추출보다 단백질 분해효소를 이용한 가수분해 처리가 효과적이있으며, 분말제품의 수율을 높이기 위해서는 원료육을 완전히 액화시키는 것이 효과적이었다. 분말조미료는 굴, 키조개 및 새조개 육중량에 $50\%$의 물과 Alcalase를 각각 $4\%$ 첨가하여 $60^{\circ}C$에서 3시간동안 가수분해시키고 여과한 후 다시 막을 통과시켜 분자량 500 dalton 범위로 분획한 액을 진공동결건조하여 제품으로 하였다. 이들 제품의 수분함량이 각각 $3.5\%,\;3.8\%$ 및 $3.7\%$일 때 총질소량과 아미노질소량은 각각 $69.4\%,\;78.8\%$ 및 $74.2\%$와 $45.5\%,\;48.9\%$ 및 $45.4\%$이었다. 그리고 용해도는 각각 $78.4\%,\;76.3\%$ 및 $76.9\%$이었고 건조제품의 수율은 각각 $11.7\%,\;8.2\%$ 및 $9.8\%$로 나타났다.

• 한국수산과학회지
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• 제17권6호
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• pp.529-535
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• 1984

1983년 7월부터 1984년 6월까지 키조개의 양식개발을 위한 기초자료를 얻기 위하여 전남 여계만산 키조개의 번식시기와 생식 패턴을 파악함과 동시에 같은 해역에서의 부유유생 출현의 증감을 조사하였다. 조사개체 중 가장 큰 것은 1984년 6월에 채집된 개체로 각고 37.5cm, 각장 19.5cm였으며, 각중량 521.8g, 총육중량 230g이었고, 패주중량 57.6g이었다. 생식선을 포함하는 내장낭의 각장에 대한 증중지수는 10월에 최소였다가, 12월에 최대로 되었고, 그 후에 서서히 감소하다가 6월에는 현저히 감소하였다. 여계만산 키조개의 연생식주기는 7월에서 8월로 가면서 방란방정이 전부 끝나고 9월에 전부 휴지기로 되었다. 생식세포는 11월 이후 출현했으나, 이듬해 3월까지 심한 식작용에 의한 억제현상이 관찰되었다. 산란기는 5월을 중심으로 하고 있으며 6월은 방란방정 말기였다. 남해산과 비교한 결과, 서식지역에 따라 성숙도에 차이가 있었다. 부유유생의 출현량은 $4{\sim}5$월에는 거의 없었으나 6월은 30개체 이상이었다. 그러나, 전부$220{\mu}m$ 이하인 초기 부유유생이 출현한 것으로 보아 부착기유생은 7월 이후에야 출현하는 것으로 추정된다.

• 한국패류학회지
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• 제21권2호
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• pp.113-120
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• 2005

1995년 10월부터 1997년 10월까지 2년간 제주도 서귀포시 법환 어장 및 전라남도 장흥군 득량만 어장에서 키조개 자연채묘와 치패의 성장을 조사하였다. 환경조사에서는 수온은 법환 어장 $14.1-24.1^{\circ}C$, 득량만 어장 $4.7-28.5^{\circ}C$로서 법환 어장의 최저수온이 득량만 어장에 비해 $9.4^{\circ}C$ 높았으며, 최고 수온은 $4.4^{\circ}C$ 낮게 나타났다. 그 외의 8개 항목의 수질은 비슷한 결과를 나타내었으나 용존 무기질소가 법환 어장에서 다소 낮게 나타났으며 키조개의 서식에는 큰 영향을 미치지 않는 범위였다. 자연채묘는 키조개의 채묘기당 부착밀도는 법환 어장의 경우 10-13 m 수층에서 6.6 개체로 가장 높게 나타났고 득량만 어장에서는 1.9 개체였다. 월별로는 8월에 채묘를 실시한 시험구가 부착밀도 및 성장이 가장 좋았다. 부착한 키조개 치페의 성장은 채묘 6개월 후 평균 각장 42.5 mm로 성장하였으며, 부착일수 (D) 에 따른 각장 (SL) 의 관계식은 SL = 0.3854D + 0.8423 ($r^2$ = 0.9764)로 나타낼 수 있었다. 수심별 부착밀도 및 성장은 10-21 m층이 표층 및 저층에 비해 좋았다. 키조개 치패의 망목크기는 $1{\times}2mm$가 가장 좋았고, 부착기질은 polyethylene monofilament가 가장 양호한 것으로 조사되었다.

• Journal of Species Research
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• 제2권1호
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• pp.1-6
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• 2013

Conchodytes nipponensis (De Haan, 1844), a caridean shrimp living in the mantle cavity of a pen shell (Atrina pectinata) is reported for the first time from Korea. It was collected from a depth of 15 m depth. Its morphology is described and illustrated, and a color image of a living specimen is provided. This is at the same time the first record of the genus Conchodytes, and the first record of a bivalve mollucs associated shrimp, from Korea.