• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2001.05a
• /
• pp.116-117
• /
• 2001

젓갈류는 어패류에 식염을 가하여 염장함으로써 부패균의 번식을 억제하고 자가소화효소 또는 미생물의 효소작용에 의해 육질을 분해시킨 우리나라 전통의 수산발효식품으로 해양 수산부 통계(수산물 가공업 생산고 조사, 1999)에 따르면 우리나라 젓갈류(염신품)의 생산량은 1995년 16,613, 1996년 20,349, 1997년 24,044, 1998년 42,834, 1999년 60,670톤으로 생산량이 급증하고 있다. 염신품 중 명란젓은 약 40 ％을 점하고 있으며 명태의 자원감소에 따라 원료의 공급은 해마다 줄어들고 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2001.05a
• /
• pp.166-167
• /
• 2001

새로운 기능성 수산물 음료의 개발과 연안에서 생산되는 미활용 수산자원의 유호 이용이라는 관점에서, 전복 양식의 부산물인 참전복 열성패를 원료로 전복 드링크 제조를 위한 유효소재의 추출조건을 구명하였고, 아울러 이화학적 실험 및 관능검사를 통해 전복 드링크 소재의 성분특성, 기능성 및 정미성분을 평가하였다. (중략)

• Bulletin of the Society of Naval Architects of Korea
• /
• v.2 no.1
• /
• pp.20-23
• /
• 1965

우리나라는 연해(沿海)에 풍부(豊富)한 수산자원(水産資源)을 가진 동서남(東西南)의 삼해(三海)에 면(面)해서 멀리 탁 트인 태평양(太平洋)을 바라보는 위치(位置)에 있다. 이와같은 지리적(地理的)인 조건(條件)을 구비(具備)하고 있는 우리로서 어찌 바다에 관심(關心)을 갖지 않을 수 있겠는가? 풍부(豊富)한 수산자원(水産資源)이 있음에도 "배"의 부족(不足)으로 마음껏 이를 획득(獲得)하지 못함은 실(實)로 안타까운 일이다. 건국이래(建國以來) 조선산업(造船事業)에 힘을 기우려 이를 발전(發展)시켜왔으나 아직도 수요량(需要量)에 미달(未達)하여 약(約) 256,000여톤(餘屯)의 선박(船舶)이 부족(不足)한 실정(實情)에 있으며, 매년(每年) 1,3000여만불(餘萬弗)의 외화(外貨)가 선박운임(船舶運賃)으로 지출(支出)되는 현시(現時)에, 조선(造船)에 여러가지 애로(隘路)가 많다고 좌수방관(座手傍觀)하고만 있을 수는 없다. 이웃나라의 일본(日本)은 자국선박(自國船舶)뿐 아니라 널리 선박수출(船舶輸出)의 해외시장(海外市場)을 가지고 연간(年間) 200여만톤(餘萬屯)의 건조량(建造量)을 자랑하고 있다. 그러나 우리의 역사(歷史)위에도 통일신라시대(統一新羅時代)의 해양제패(海洋制覇)의 기록(記錄)과 임진란당시(壬辰亂當時) 우리해군(海軍)의 활동(活動) 등 우리선조(先祖)들이 그분들의 손으로 건조(建造)한 선박(船舶)으로써 활약(活躍)한 바 있고 지금의 우리도 차츰 조선업(造船業)을 부흥(復興)시켜 현재(現在) 4,000톤급(屯級)의 선박(船舶)을 건조(建造)하는 단계(段階)에 이르고 있는 것이다.

• Journal of the Korean Society of Fisheries and Ocean Technology
• /
• v.54 no.4
• /
• pp.353-359
• /
• 2018

Basic reproductive biology of the daggertooth pike conger, Muraenesox cinereus were investigated based on the samples from August 2015 to December 2017 in Korean waters. A total of 2,328 samples was collected (1,593 females and 735 males) during the study period. The mean anal lengths (AL) were $33.5{\pm}9.2cm$ in females and $26.2{\pm}7.3cm$ in males respectively. The females were larger than males in AL (p < 0.05). Sex ratio was 2.2:1 in female to male (p < 0.05). The gonadosomatic index (GSI) varied monthly. GSI of female reached the maximum in July 2016 and June 2017 and the minimum in October 2016 and September 2017 respectively. The spawning period was from June to October. The size at sexual maturity ($L_{50}$) of females was estimated at 24.9 cm in AL (63.5 cm in TL).

• The Journal of Fisheries Business Administration
• /
• v.53 no.1
• /
• pp.55-72
• /
• 2022

The domestic catch of squid is decreasing every year. Import volume is increasing to replace these domestic products. Import volume is expected to increase in the future, so it is necessary to study import substitution. Therefore, in this study, after selecting frozen squid, which accounts for the majority of imported squid, as the target fish species, China, Chile and Peru, which account for the majority of frozen squid imports, will be selected as the target countries for analysis. Then, the demand function of squid is estimated using the Rotterdam model, the inverse Rotterdam model, AIDS and inverse AIDS, which are the simultaneous equation demand types, and then elasticity is derived. After that, these models are compared in terms of significance, theoretical fit and practical fit.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.55 no.2
• /
• pp.189-194
• /
• 2022

Unidentified postflexion larva (18.57 mm in standard length, SL), belonging to the family Synodontidae was collected from Jeju Island, Korea, in November 2019. Molecular analysis revealed that the unidentified larva was identical to Synodus kaianus adults in mtDNA cytochrome c oxidase subunit I region (Kimura-2-parameter distance, d= 0.006), and was different from the close species S. macrops (d=0.220). The postflexion larva of S. kaianus has the following morphological features: regularly distributed seven peritoneal pigment spots along the alimentary canal; and, intensively distributed stellate melanophores at the middle of the base of caudal fin and behind the last anal fin ray. The postflexion larva of S. kaianus differed from that of S. macrops in snout length and size of peritoneal pigment spots. This is the first record of S. kaianus in Korea, and we suggest the Korean name "Ka-i-ya-kkoch-dong-myeol" for S. kaianus, according to Lee et al. (1999).

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.55 no.1
• /
• pp.67-72
• /
• 2022

We investigated the changes in the egg diameter of chub mackerel Scomber japonicus with the stages of egg development (and distinguished between hydrated oocyte and non-hydrated oocyte) for 1, 2, 3, 5, 10, 15 and 30 days. The chub mackerel oocytes were preserved in seven fixing solutions (70% ethyl alcohol, 99.9% ethyl alcohol, 5% formalin, 10% formalin, 5% neutral buffered formalin, 10% neutral buffered formalin and Gilson's solution). At 30 days, the chub mackerel hydrated oocytes preserved in 70% ethyl alcohol and 99.9% ethyl alcohol had shrunk by 5.2% and 7.9%, respectively. Similarly, the non-hydrated oocytes in the same solutions shrunk by 10.3% and 14.0%, respectively. Oocytes preserved in Gilson's solution had an average egg diameter decrease in both the hydrated oocyte (by 16.9%) and non-hydrated oocytes (by 15.6%). The diameter of the preserved hydrated oocytes did not significantly differ between the 5% formalin, 10% formalin, 5% neutral buffered formalin and 10% neutral buffered formalin, with shrinkage percentages of 0.6%, 0.1%, 1.9% and 3.4%, respectively (P>0.05). Similarly, the shrinkage percentages of the non-hydrated oocytes were 4.3% (5% formalin), 5.5% (10% formalin), 4.3% (5% neutral buffered formalin), and 4.1% (10% neutral buffered formalin).

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.56 no.1
• /
• pp.1-6
• /
• 2023

Since 2019, Korea Ministry of Oceans and Fisheries has set the annual total allowable catch (TAC) by fish species, and has allocated the annual TAC into each fishery vessel. Also the Korea government plans to adopt the individual transferrable quota system in time. The TAC allocation is similar to the individual fishermen/fishing quota, which the US National Oceanic and Atmospheric Administration has implemented. However, the TAC based management faced fishermen's complaints and a debate is still underway about how to allocate TAC. Because the ideas of the Korea policy are from those in the foreign countries, I intended to provide the Korea fisheries community with an overview about how the TAC has been developed, what problem it caused, and foreign examples of how to allocate it. Furthermore, I pointed out a substantial room for improvement in their current practice of stock assessments, because, otherwise, their current methods for estimation of TAC by species cannot be trusted. Finally I made specific suggestions about what they need to do to reform their current stock assessments.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.56 no.4
• /
• pp.449-461
• /
• 2023

The aim of this study was to conduct an ecosystem-based fishery risk assessment of tuna fisheries in the Western Indian Ocean. We selected gillnet, purse seine, hand line, baitboat, and longline fisheries as the target fisheries method, and selected longtail tuna (Thunnus tonggol), narrow-barred Spanish mackerel (Scomberomorus commerson), kawakawa (Euthynnus affinis), skipjack tuna (Katsuwonus pelamis), yellowfin tuna (T. albacares), bigeye tuna (T. obesus), albacore tuna (T. alalunga) and swordfish (Xiphias gladius) as the target species. The risk score for the size at the first capture in sustainability objective was high, especially, for the purse seine and baitboat fisheries using the fish aggregating devices (FADs). The risk score for the bycatch in the biodiversity objective was high for the gillnet fishery, and the gillnet fisheries using FADs showed high risks for the habitat quality objective due to the loss of the fishing gears. With regards to the socio-economic benefits objective, the risk score of the sales profits was low due to high sales of the tuna fisheries. The ecosystem risk score in the Western Indian Ocean was estimated to be moderate, although management is required for some of the indicators that have high-risk scores.

• The Journal of Fisheries Business Administration
• /
• v.54 no.1
• /
• pp.051-069
• /
• 2023

This study analyzed the determinants that affect the purchase of ready-to-cook seafood products using the "Consumer Attitude Survey on Processed Foods" from 2018 to 2021. Dietary lifestyle, food awareness and preference survey questions were categorized, and factors affecting the purchase probability of ready-to-cook seafood were identified through a binomial logit model. The main research findings are as follows. First, consumers had higher preference for quality, safety, and new taste factors than health and price factors when purchasing HMR (Home Meal Replacement). Second, through binomial logit model analysis, the probability of purchasing ready-to-cook seafood products was low in the group pursuing taste and economy. On the other hand, the purchase probability was high in the group seeking convenience. Third, the purchase probability of ready-to-cook seafood products was higher in households with two or more persons than in single-person households. These results suggest that differentiated product development and marketing strategies should be needed for each consumer groups in the seafood convenience food market.