• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.6
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• pp.927-937
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• 2022

The reproductive characteristics of Pacific anchovy, Engraulis japonicus were investigated using samples randomly collected from the southern waters of Korea between January and December 2021. We analyzed monthly changes in maturity stages, gonadosomatic index (GSI), egg diameter, fecundity, and fork length (FL) at sexual groups maturity of 50%, 75% and 97.5%, and sex ratio (female:male). GSI value showed two peaks in May and August; however, microscopic analysis of E. japonicus gonad tissue revealed that the spawning period was from March to October. The main spawning seasons for the entire populations were from April to June and August to September. The overall sex ratio was female-biased (1 females, 0.89 male). The fecundity (F) of female anchovies ranged from 429 eggs at an FL of 8.0 cm to 13,824 eggs at an FL of 14.9 cm and the relationship between FL and F was 0.0788FL^4.422. The FL at 50% group maturity was 8.26 cm for female anchovies. Based on the results, we suggest that the reproductive cycle in Pacific anchovies may be related to pulses in water temperature and the sexual cycle of the fish.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.516-517
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• 2000

키조개, Atrina pectinata는 키조개과 (Pinnidea)에 속하는 우리 나라 산 이매패류 중에서 가장 큰 종으로 주로 남, 서해안에서 대량 생산되고 있다. 특히, 본 종은 후폐각근인 패주가 고급식품으로서 최근 각광을 받고 있을 뿐만 아니라, 수출품종의 하나로 외화획득에 기여하며 어업인들의 큰 소득원이 되고 있는 중요한 수산자원의 하나이다. 지금까지 본 종의 생식에 관한 연구 보고로는 일본산 키조개의 번식생태(길전, 정상, 1954)와 우리 나라 남해산 키조개의 번식상태(류와 유, 1984; 류 등,1988)에 관한 연구가 보고되고 있으나 서해산 키조개의 번식생태에 관한 보고는 찾아볼 수 없었다. 따라서 본 연구의 목적은 서해산 키조개의 생식주기와 난소발달 단계에 따른 후폐각근과 내장낭 부위의 생화학적 조성 변화를 조사하여 생식 mechanism을 추구하는 동시에 본 종의 자원관리를 위한 기초자료를 제공하고자 본 연구를 수행하였다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.178-179
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• 2001

굴은 년간 생산량이 20만톤 전후로 전체 패류 생산의 약52％ 이상 점유하고 양식생산 비증서 90％를 상회함으로서 어업생산 및 어가 소득, 농어촌 지역의 고용 창출 효과 측면 외에도 남해안수산업 발전의 상징적 의미까지 내포한 중요한 수산자원이다. 굴 가공의 년간 생산량은 13,000톤 전후로 통조림과 냉동품의 생산 비중이 전체 굴가공품의 90％ 이상을 점하며 가공품의 대부분이 수출되고 있으나 1990년대 중반부터 중국, 호주, 등 후발 개도국 및 자원부국과의 수출경쟁 심화로 새로운 기술 개발이 없을 경우 한국산 굴제품의 국제적 경쟁력 저하가 예상되는 등 지속적 수출시장 확보 노력이 필요한 상품이다. (중략)

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.1
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• pp.51-60
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• 2022

In Korea, the volume of imported fish for human consumption has been dramatically increasing every year. However, many Koreans are unable to distinguish imported fish from our domestic species. To reduce confusion and minimize the negative impacts on consumers, we reviewed the names of 100 imported fish species. We suggest new Korean names for 22 imported fish species. We also suggest altering the Korean names for three imported fish species. Finally, we suggest four novel ways to ensure the systematic and effective management of imported fish species.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.363-365
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• 2003

개조개(Saxidomu purpuratus)는 우리나라 전 연안에 분포하고 있으며, 연평균 생산량은 약 약 7,300들 정도가 어획되어지며, 경남 남해안 생산량이 전국 생산량의 약 73% 이상을 차지하고 있다. 본 종은 2001년부터 TAC 실시 대상 어종으로 선정되어 자원이 관리되어지는 실정에 있다. 따라서 개조개 자원을 보다 더 합리적으로 관리하기 위해서는 이 자원에 대한 자원생물학적 특성치인 자연사망계수, 어획사망계수, 생잔율, 어획개시연령 정확한 정보가 있어야만 효율적이고 종합적인 관리 발안을 수립할 수 있을 것이다. (중략)

• Journal of the Korea Institute of Information and Communication Engineering
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• v.3 no.4
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• pp.695-704
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• 1999

This paper presents the new developmental direction for fisheries policy in Korea. Korea is changing strang fisheries nation, the fact is that korea cannot effectively cope with changing fisheries situation and various fisheries difficulties, because the fisheries policy system is dispersed to each parts of the government. The results of this study is as follow: the fisheries policy in future must be able to unify of Ministry of Maritime Affairs and Fisheries, all fisheries offices must be able to relation, the regulation of fisheries policy must relieve, a coastal fishery must be able to reproduction, change of fishery structure must be able to raising fishery, consumption of fishery must be able to improvement, live of fishing village must be able to betterment, overseas fishing grounds must have to security.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.55 no.3
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• pp.217-232
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• 2019

It was turned out by shrimp beam trawl monthly survey from March, 2015 to February, 2016 that different species composition and abundance of the fish assemblages in Sacheon Bay and coastal waters off Namhae, Korea were compared. As a result of monthly measured sea temperature and salinity of Sacheon Bay and coastal waters off Namhae, sea temperature of both areas was changed seasonally; however, differences in sea temperature occurred during certain periods depending on the region. Salinity was generally low in Sacheon Bay affected by fresh water, and both areas was low in summer and high in winter. A total of 73 species representing 37 families were collected in Sacheon Bay. The dominant fish species in terms of numbers and biomass were Liparis tanakae, $23,077inds./km^2$, $332.1kg/km^2$. A total of 91 fish species representing 49 families were collected in coastal waters off Namhae. The dominant fish species in terms of numbers were Leiognathus nuchalis, $139,683inds./km^2$ and biomass were Chelidonichthys spinosus, $1,078.6kg/km^2$. Analysis of dendrogram of the clustering showed that Sacheon Bay and coastal waters off Namhae were distinctive featured (global R = 0.691, p = 0.017). And except of summer season (July-October), there was a distinctive feature seasonally (global R = 0.844, p = 0.001). The fish species that appeared in common in both areas, where fish species caught in Sacheon Bay, an important inner bay,were smaller than those caught in coastal waters off Namhae appeared. It presented that Sacheon Bay plays a more important role in spawning and nursery ground for fisheries resource than coastal waters off Namhae, Korea.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2005.05a
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• pp.37-41
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• 2005

• Proceedings of the Korean Aquaculture Society Conference
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• 2005.05a
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• pp.145-146
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• 2005

• Proceedings of the Korean Aquaculture Society Conference
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• 2005.05a
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• pp.147-148
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• 2005