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

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

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

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.55 no.2
• /
• pp.183-188
• /
• 2022

It is a difficult task to estimate parameters in even a simple stock assessment model such as a surplus production model, using only data about temporal catch-per-unit-effort (CPUE) (or survey index) and fishery yields. Such difficulty is exacerbated when time-varying parameters are treated as random effects (aka state variables). To overcome the difficulty, previous studies incorporated somewhat subjective assumptions (e.g., B₁=K) or informative priors of parameters. A key is how to build an objective joint prior of parameters, reducing subjectivity. Given the limited data on temporal CPUEs and fishery yields from 1999-2020 for common squid Todarodes pacificus, we built a joint prior of only two parameters, intrinsic growth rate (r) and carrying capacity (K), based on the resilience level of the population (Froese et al., 2017), and used a Bayesian state-space production assessment model. We used template model builder (TMB), a R package for implementing the assessment model, and estimating all parameters in the model. The predicted annual biomass was in the range of 0.76×10⁶ to 4.06×10⁶ MT, the estimated MSY was 0.13×10⁶ MT, the estimated r was 0.24, and the estimated K was 2.10×10⁶ MT.

• Proceedings of the Korea Water Resources Association Conference
• /
• 1996.05a
• /
• pp.683-688
• /
• 1996

The purpose of this study is to find seasonal variation of the water circulation in the Chenbuk coastal sea region. Chenbuk coastal sea is investigated with use of a robust diagnostic numerical model. Water circulations in four seasons are calculated diagnostically from the observed water temperature and salinity data and wind data from Kunsan mereorologcal station.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.52 no.3
• /
• pp.283-287
• /
• 2019

Two specimens of Taractes rubescens (family Bramidea) were collected from Busan and Pohang, Korea, between 2015 and 2016. Taractes rubescens was very similar to Taractes asper, but the two species are clearly distinguishable by the number of anal fin rays (21-23 in T. rubescens vs. 25-27 in T. asper) and the presence of a lateral caudal keel (present in T. rubescens vs. absent in T. asper). The mitochondrial DNA cytochrome c oxidase subunit I sequences of the specimens described in this paper perfectly matched those of T. rubescens, but differed from those of T. asper (genetic distance: 6.9%). We use the Korean common name proposed by Kim and Ryu (2017) for T. rubescens, "Geom-eun-sae-da-rae".

• Korean Journal of Ichthyology
• /
• v.33 no.4
• /
• pp.240-251
• /
• 2021

A checklist of snake eels (Ophichthidae) from Korea is presented including information, such as synonyms, distribution, occurrence records and key to species of 7 genera and 14 species. Also, we suggest change of the Korean names for the snake eels (Ophichthidae) "Ba-da-baem-gwa" to "Ba-da-baem-jang-eo-gwa", and it's members, because Korean names of snake eels (Ophichthidae) is similar to those of sea snake (Hydridae).

• Proceedings of the Korean Professional Engineer Association Conference
• /
• 1996.12a
• /
• pp.117-125
• /
• 1996

우리 나라 수산식품은 삼면의 바다에서 생산되는 풍부한 자원으로 이를 가공하여온 오랜 전통이 있으나, 최근에 와서 이런 전통들이 없어졌거나 계승되었다 할지라도 사라져 가고 있다. 전해 내려오는 전통수산식품을 정리해보면 1. 서구에서는 가공되어 왔으나 우리 나라에서는 없었던 것으로 알려져 왔던 훈제품으로 은어 훈제품, 청어 훈제품이 있었다. 2. 가자미, 서대, 도다리 등은 중간수분식품으로 가공되어 왔으며 지금도 유통되고 있다. 3. 동건품인 황태와 염건품인 굴비는 발효를 겸한 식품이다. 4. 염건 숭어알은 특이한 가공품이다. 5. 멸치, 굴, 홍합자숙액으로 魚간장을 제조했었다. 6. 어리굴젓, 꼴뚜기젓 등은 숙성을 잘 이용한 저염 젓갈이다. 7. 멸치젓, 새우젓, 곤쟁이젓 조기젓 등으로 만든 젓국은 약염으로 이용되어 왔다. 8. 홍합, 굴, 바지락, 해상 등 장기 보장을 위해 자건품이 가공되었다.

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2002.10a
• /
• pp.158-159
• /
• 2002

가막만은 평균수심이 약 9m인 천해이며 대부분 수하식 굴 양식업이 성행하는 천혜의 수산자원 보고로서 그 규모가 전국 생산량의 30％에 달하는 중요한 어장이였다. 그러나 인구증가 및 주변 임해 산업시설, 과도한 양식업의 성행 등으로부터의 하ㆍ폐수 및 여러 오염물질 등의 유입증대로 인하여 오염이 점점 심화되고 있는 실정이다. 해양생태계는 매우 다양한 생물들에 의하여 복잡ㆍ다양하게 구성되어 있으며 여러구성원들간에 서로 밀접한 관계를 가진다(Lee et al., 1998). (중략)