• 수산경영론집
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• 제51권4호
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• pp.85-96
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• 2020

The purpose of this study is to find out the determinants of export in Korean fishery products. For the analysis, laver and tuna, which account for almost half of seafood exports, were selected, and a gravity model widely used in trade analysis was applied. As explanatory variables, GDP, number of overseas Koreans, exchange rate, FTA, and WTO were applied, and fixed effect terms were included to take into account multilateral resistance that hinders trade. The analysis period is from 2000 to 2018, and the Poisson Pseudo Maximum Likelihood (PPML) method was applied to solve the problem of zero observation and heteroscedasticity inherent in trade data. As a result of the analysis, GDP was found to have a significant positive effect on both laver and tuna. The number of overseas Koreans was significant in canned tuna exports, but not in laver and the other tuna products. As the exchange rate increased, the export of laver and tuna for sashimi increased. The impacts of the FTA were confirmed in the exports of dried laver and raw tuna, which supports the results of the previous study. WTO was not significant for laver and tuna. Based on these results, it is necessary to find a way to make good use of the FTA to expand exports of seafood.

• 수산경영론집
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• 제50권3호
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• pp.59-71
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• 2019

In terms of coastal and marine tourism, Busan's Haeundae had the nation's representativeness, and is pushing for many kinds of related policies to revitalize the special tourism zone. Due to a drop in the number of beach users, it is inevitable for the Haeundae Special Tourist Zone to face active responses to new trends emerging in the global tourism market. Therefore, the purpose of this study is to present a tourism strategy for making the Suyeong River as a more competitive ourist resource along the zone. First, a language network analysis is conducted through interviews to understand the ideas of interest groups for the river cruise activation project. Second, the frame structure of stakeholders is used to analyze solutions by comparing the similarities and differences in recognition frames of interest groups. Third, we intend to analyze the detailed frame types of stakeholders and present new alternatives based on the structure of relationships between types.

• Fisheries and Aquatic Sciences
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• 제25권5호
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• pp.251-263
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• 2022

Sea cucumbers are worm-like, leathery bodied, benthic, marine organisms with a branched gonad. There are over 900 species, and these organisms are capable of changing their mechanical state, regenerating their small appendages, and digestive tract. Additionally, sea cucumbers possess both commercial and therapeutical value. Furthermore, it is thought that the metabolites these organisms possess may give rise to their therapeutical value. The use of sea cucumbers in therapy can be traced back to the Ming dynasty, where they were eaten for their tonic properties against constipation, hypertension, and rheumatism. A plethora of studies have been conducted, whereby different metabolites were extracted from sea cucumbers and tested for different therapeutic properties. Herein, we review and discuss the anti-cancer, anti-microbial, anti-coagulant, anti-diabetic, antioxidant, and anti-inflammatory properties of the sea cucumber by assessing literature on PubMed and Google Scholar. Furthermore, the genome and epigenome of these remarkable species is discussed. With the immense data supporting the therapeutic properties of sea cucumbers, further studies are warranted, in order to develop novel and innovative therapeutic compounds for the benefit of human health from these fascinating marine organisms.

• Fisheries and Aquatic Sciences
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• 제25권2호
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• pp.90-100
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• 2022

Cardiovascular diseases (CVDs) have posed serious public health problems, accounting for nearly 30% of mortality worldwide and their incidence is still increasing. Therefore, new treatment resources are necessary to prevent or manage the ever-increasing population of patients with CVDs. Sea cucumber is well known for its medical and health benefit effects, but it is not well known what/how effect it has on vascular disease. In the present study, we examined the protect effect of sea cucumber, Apostichopus japonicus 80% ethanol extract (AJE) on zebrafish embryo with the stimulation of free fatty acid, palmitate (PA). In vivo study showed that AJE can attenuate PA-induced toxicity through relieving the rapid heartbeat, increasing the survival rate and reducing the malformation in both wild type and Tg (fli1a:eGFP) transgenic zebrafish lines. Additionally, compare with PA treated embryos, the yolk sac area, body length, axial vascular segment (AVS) and intersegmental vessel (ISV) of the co-treatment group of AJE and PA were comparable to the control group. Moreover, AJE lowered the expression of inducible nitric oxide synthase (iNOS), nitric oxide (NO) and inflammation-related genes induced by PA, and inhibited PA-induced vascular development disorders. Our data preliminarily verify that AJE could be a candidate resource for the prevention or therapy of CVDs.

• 수산경영론집
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• 제54권1호
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• pp.023-036
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• 2023

Global food prices have skyrocketed due to international uncertainties such as COVID-19 and the Russian-Ukrainian War. In this context, the importance of rural areas as a source of food production is also rapidly increasing. However, the issue of regional extinction is emerging as Korea faces the world's lowest fertility rate and fastest aging population. Also, rural areas are losing their population more rapidly than large cities. Therefore, this study aims to analyze the factors that can encourage the influx of fishermen to prevent the disappearance of these fishing villages. As a result of the analysis, in order to prevent the disappearance of fishing villages, among the infrastructure, natural environment, and residential environment variables, the ratio of aged housing related to quality of life, culture and amenities coefficients were found to have a greater impact than other variables. Based on these results, it is judged that it is necessary to establish a sufficient level of infrastructure in fishing villages and to prioritize policies for improving the residential environment.

• 자원ㆍ환경경제연구
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• 제13권4호
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• pp.657-684
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• 2004

본 연구는 MPA 효과를 분석한 생물경제학적 연구로서 어업자원분포와 어종이동 특성에 따른 MPA 설치 전 후의 자원량과 어획량 변화를 이론적으로 분석하였다. 특히 본 연구에서는 어업자원분포 모형 가운데 폐쇄모형, 발생지-유입지 모형, 밀도종속적 모형을 대상으로 하였다. 각 모형에 대한 MPA 효과 분석에 있어서는 어획활동에 따른 경제적 효과도 함께 고려했을 뿐 아니라 다른 어획노력량 통제수단과의 병용효과도 함께 살펴보았다. 모든 모형 하에서 MPA 설치에 따라 전체 자원량이 증가하는 것으로 나타났지만, 폐쇄모형과 발생지-유입지 모형 하의 유입지에 대한 MPA 효과분석 결과 총어획량은 감소하였다. 발생지-유입지 모형에서의 발생지 그리고 밀도종속적 모형 하에서의 MPA 효과분석에서는 어종의 이동률, 자원량 수준 등에 따라 어획량이 증감하는 것으로 평가되었다. 특히, 자원이동률이 클수록, 자원량 수준이 높을수록 어획량 증대효과가 있는 것으로 분석되었다. 또한 어업비용 증가로 인해 어획가능구역에서의 어획노력량 증대에는 한계가 있는 것으로 나타났다. 그리고 다른 어획노력량 통제수단과 병용되었을 경우 전체적인 자원량 수준이 보다 크게 높아질 수 있는 것으로 평가되었다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.174-179
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• 2006

Information on the distribution characteristics of tuna resources in Kiribati EEZ waters in three zones (Zone 1: west Gilbert region, Zone 2: central Phoenix region, and Zone 3: east Line region) as well as their relationship with the ocean environment is critical for sustainable managing the migratory tuna resource and fishing practices in this region. Therefore, this study is designed to investigate the spatial and temporal distribution and concentration of bigeye (BET) and yellowfin tuna (YFT) in Kiribati EEZ waters in relation to sea surface temperature (SST) and thermocline depth so as to better understand the tuna resources management basis in Kiribati waters. The geographic and temporal distribution and concentration were first displayed. Paired t-test was utilized to compare the distribution between the two tuna species based on Catch per Unit Effort (CPUE) derived from the Korean longliners during 1996 to 2004, and also among the three zones of Kiribati EEZ waters. Environmental conditions of the three zones were then compared and correlated with the CPUE of YFT and BET. In addition, the effect of ENSO phenomena on the environmental conditions and the distribution of YFT and BET within the three zones were also examined. The BET was relatively higher in the Zone 3 whereas YFT predominate in the Zone 1 and the Zone 2 due to oceanographic differences among the three zones and the ecological habitats of the two tuna species. It was suggested that El Ni?o/Southern Oscillation (ENSO) phenomena altered the oceanographic conditions of the three zones that in turn change the distribution of the two tuna species. During El Ni?o, the warm phase of ENSO, resulted in having more BET in all the three zones and the opposite observed during La Ni?a (cold phase) replacing by having relatively higher catch rate for YFT, particularly in the Zone 2. Although the results of the study are from short periods (1996 to 2004) in considering oceanographic anomality, these environmental variations should be considered into sustainable fisheries management of tuna fisheries in Kiribati EEZ waters.

• 해양환경안전학회지
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• 제19권5호
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• pp.459-466
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• 2013

본 연구에서는 충남 연안에서 연안조망의 어획 특성을 파악하기 위하여, 2008년 3월부터 2009년 2월까지 매월 2~4회 연안조망을 사용하여 어획조사를 실시하였다. 조사 해역은 동경 125도 50분~126도 05분, 북위 36도 15분~36도 25분의 해역이었고, 총 19목 63과 96종이 채집되었다. 그 중 어류가 54종, 갑각류가 27종, 복족류 및 이매패류가 9종, 그리고 두족류가 6종이었다. 생체량은 어류가 51.4 %로 가장 많았으며, 갑각류는 34.2 %를 차지하였다. 꽃새우는 7월~11월에 출현량이 많았고, 12월부터 5월까지는 적은 양이 출현하였다. 연안조망의 목표종인 꽃새우는 전체 어획물의 2.1 %로 낮은 채집 비율로 출현하였으며, 꽃새우 이외 어종의 부수적 어획물의 양적 비율이 높아, 꽃새우 어획이 부수어획으로 어획되는 종들의 수산자원에 미치는 영향이 클 것으로 판단된다.

• 수산경영론집
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• 제49권3호
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• pp.85-99
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• 2018

This study is to compare and evaluate the estimating method of WTP(willingness to pay) for the valuation of oceans and fisheries resources with non-market goods characteristics using contingent valuation method. In general, when estimating parameters of the WTP function, we should take into account the assumption of probability distribution, inclusion of covariates, method of inducement of payment, and the treatment of 0 payment intention and resistance responses. This study utilizes survey data that was used to estimate the value of fisheries resource protection zones, with a total of 1,200 samples. The main results of this study are summarized as follows: First, the final willness to pay amount is estimated at a statistical significance of less than 1 percent, and the distribution of the final willness to pay amount is from \6,926 of the double bounded dichotomous model to \10,721 of the spike model. Second, the willness to pay amount based on assumptions about the normal and logistic probability distributions are estimated to be \9,429 and \9,370 respectively, so there was no significant difference. Third, the willness to pay amount of the single bounded dichotomous model and the double bounded dichotomous model are estimated to be \8,951 and \6,926 respectively, making a relatively large difference. Fourth, the willness to pay amount of the model without covariates and the model with covariates are estimated to be \9,429 and \8,951, respectively, so the willness to pay amount is underestimated when the covariates are included. Fifth, the Spike model that considers zero payment intention and resistance response estimates \10,405 as the highest payment in this study. Finally, the CVM analysis guidelines proposed by the Korea Development Institute (KDI) are estimated to be \9,749 and \10,405 respectively, depending on including no covariates and with covariates. Compared to other models, the final willness to pay amount is not estimated underestimated. Therefore this study suggests the use of KDI's guidance under government public policy projects. In view of these results, the estimating model for willness to pay amount model will be selected by considering the sample size, the suitability of the model, the sign of the estimated coefficient, the statistical significance, the ratio of the zero payment intention and the payment rejection. And, for CVMs on government public policy projects, it is desirable to estimate by the method proposed by the KDI.

• 한국어류학회지
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• 제33권2호
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• pp.95-106
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• 2021

본 연구에서는 남한측 동해 최북단인 강원도 고성군에서 2년간(2018~2019년) 매월 정치망을 이용하여 어류 종조성을 확인하였으며, 과거 연구와의 비교를 통해 동해 해양환경과 어류상 간의 관계를 확인하고자 하였다. 조사기간 동안 총 77개 분류군이 어획되었으며, 이 중에서 75개 분류군이 종 수준까지 확인되었다. 우점하는 분류군은 참복과, 가자미과 등이었으며, 우점종은 도루묵, 전어, 쥐치, 말쥐치, 전갱이 등이었다. 표층수온은 과거에 비해 겨울철 및 봄철에는 지속적으로 상승하였고, 봄철 어류 종조성은 과거 한류성 어종에서 최근 난류성 어종으로 변화한 것으로 확인되었다. 본 연구에서는 이전 연구보다 참복과 어류의 종 다양성이 매우 높았는데, 이는 수온 상승과 함께 동해안으로 유입되는 참복과 어류의 양적인 증가와 관계가 있는 것으로 추정된다. 어류 종조성에서는 과거 남부해역(삼척, 강릉)의 종조성과 유사해졌으며, 월별 군집분석 결과에서는 한류성 어종이 우점하는 1~4월 그룹과 방어, 고등어가 우점하는 7~10월 그룹, 그리고 난류성 어종이 우점하는 5~6월, 11~12월 그룹으로 나뉘어져서 1년 중 8개월이 동해안으로 회유하는 난류성 어종들이 우점하는 것을 확인할 수 있었다. 장기간 난류성 어종들의 우점하는 경향은 북방한계선의 확장, 서식적수온대의 장기간 형성, 그리고 풍부한 먹이에 따른 결과로 생각된다. 따라서, 동해안으로 회유하는 난류성 어종들의 상업적인 이용방법 모색과 동시에 효율적인 자원관리 정책의 마련이 필요할 것으로 생각된다.