• Title/Summary/Keyword: fisheries resource management

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Prospects and Management Issues on the Fisheries Resources among Korea-China-Japan (한ㆍ중ㆍ일간 어업자원 관리 문제와 전망)

  • 이광남
    • The Journal of Fisheries Business Administration
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    • v.33 no.1
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    • pp.87-107
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    • 2002
  • The sea of north-east Asia is biologically interrelated and one country's mishap in the management of fisheries could have a critical effect upon the other. Accordingly under the TAC system adopted by all the countries of Korea, Japan and China, the mismanagement o( trans-boundary fish stocks under the provisional fisheries agreement prior to the delimitation of EEZ could lead to the irrevocable depletion of fisheries resources in case of absence of close cooperation among the countries concerned. To tackle the problems above, it is necessary, from a short term perspective, to promote the combined efforts to do researches on fisheries resources, find ways to improve the transparency of fisheries management, adjust the fisheries management regulations of each country, standardize fishing gears and methods, and exchange fisheries-related statistics and data for socio-economic analysis and strengthen joint research activities for the mutual benefits. From a longer term prospective, regional fisheries organization need to be set up to oversee the whole area of north-east Asian sea. The organization as such could play a role in adjusting the conflicting interests of Korea, Japan and China, and efficiently manage the fisheries resources, which is complex and challenging in nature. In addition, unlike China, the historical fisheries relationship between Korea and Japan, spirit of reciprocity and the Article 62 of the United Nations Convention On the Law Of Sea need to be taken into account when seeking for fisheries cooperation between the two countries through the international specialization. In other words, the data obtained through the joint researches on the fisheries resources for the specific ocean along with such factors as capital, labor, fisheries technology and consumption of fish products could be used to assign the specific sector of fisheries to the country who has a comparative advantage, thus achieving the mutually benefiting results Up to the present, concerted efforts by Korea, Japan and China on the fisheries cooperation have been consistently made, but the results have yet to be materialized, It is also beyond doubt that governmental consultations among the countries should be made on a consistent basis, but non-governmental organizations' exchanges and related joint researches will more likely help bring about the desired fruition in a shorter time.

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Diverse and predominantly sub-adult Epinephelus sp. groupers from small-scale fisheries in South Sulawesi, Indonesia

  • Nadiarti Nurdin Kadir;Aidah A. Ala Husain;Dody Priosambodo;Muhammad Jamal;Irmawati;Indrabayu;Abigail Mary Moore
    • Fisheries and Aquatic Sciences
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    • v.26 no.6
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    • pp.380-392
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    • 2023
  • Groupers (Family Epinephelidae) are commonly caught in data-poor small-scale multi-species fisheries for sale on both export and domestic markets. This study presents data on the species composition and size/life-stage structure of Epinephelus spp. groupers caught by small-scale fishers and sold locally in the Indonesian province of South Sulawesi. Data were collected from fishing ports and local markets at 12 sites representing the three seaways around South Sulawesi (Makassar Strait, Flores Sea, Gulf of Bone). Each specimen (n = 3,398) was photographed alongside an object of known length, and total length (TL) was obtained using the Rapid Scaling on Object (RASIO). Of the 23 species identified, four (Epinephelus areolatus, Epinephelus ongus, Epinephelus quoyanus, and Epinephelus fasciatus) collectively comprised 69% of the catch, while the 13 least abundant species contributed less than 5%. The catch was dominated (67%) by the subadult life-stage, with just under 20% in the adult class. Juveniles dominated the catch of Epinephelus fuscoguttatus, a valuable export commodity. Observations of early maturity as well as the sizeable gap between length at first capture (Lc) and length at first maturity (Lm) indicate recruitment overfishing of most species, with the notable exception of Epinephelus rivulatus. The proportion of adult fish was low (≈5%-30%) for the twelve most abundant species (E. areolatus, E. ongus, Epinephelus quoyanus, E. fasciatus, Epinephelus coioides, Epinephelus faveatus, Epinephelus sexfasciatus, Epinephelus maculatus, Epinephelus bleekeri, Epinephelus corallicola, E. fuscoguttatus, Epinephelus polyphekadion). For two moderately abundant species (E. faveatus and E. malabaricus), TL < Lm for all specimens. The limited data available indicate spawning ratio is lower than reported from deep-water fisheries of E. areolatus and E. coioides. The results call for targeted research to fill knowledge gaps regarding the biology and ecology of groupers exploited mainly for domestic markets; highlight the need for species-level data to inform management policies such as minimum legal size regulations; and can contribute towards species-level status assessments.

The effects on the size selectivity for Muraensox cinereus, daggertooth pike conger in the coastal longline fishery (연안연승에서 어획되는 갯장어의 크기 선택성에 미치는 효과 분석)

  • KOH, Eun Hye;JANG, Choong-Sik;CHO, Youn-Hyoung;AN, Young-Su
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.56 no.4
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    • pp.292-298
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    • 2020
  • The effects on the size selectivity for Muraenesox cinereus caught by coastal longline fishery were investigated in the southern coast of Korea from June 2 to 17, 2019. Four sizes of hooks (sizes 15, 17, 18 and 19) and two sizes of bait (sizes 9.9 g and 18.3 g) were tested in seven and three fishing trials, respectively. Such results revealed that smaller hook and bait size improved capture efficiency. And our results demonstrate that there was no significant size selectivity effect for hook size (ANOVA, p>0.05), but small bait improved on catching smaller fish (ANOVA, p<0.05).

A study on the optimal placement model building of artificial reef (인공어초의 최적 배치모델 구축에 관한 연구)

  • SOHN, Byung-Kyu;JEONG, Seong-Jae
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.53 no.2
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    • pp.160-168
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    • 2017
  • In this study, we propose a method of optimal placement technique of artificial reef considering characteristics of sea areas and provide basic data for efficient budget execution. In addition, we will contribute to increasing the economic efficiency by improving the fisheries productivity by suggesting the scientific basis for the policy data and the increase of the catch through the resource creation based on the ecological information about the biology. Especially, in order to establish the effective disposition (optimum separation distance) of artificial reef considering characteristics of biological and engineering factors, it is necessary to review the artificial reef installation management regulations and investigate the biological effects of artificial reef facilities, is needed. Through this, it is expected that the ground data of the direction of the policy promotion will be derived by suggesting the placement condition of the artificial reef complex which can maximize the resource composition effect according to the target fish species.

Community Structure of Fisheries Resources Caught by Dredge in the Uljin Marine Ranching Area, Korea (울진바다목장에서 형망으로 어획된 수산자원의 군집구조)

  • Yoon, Byoung Sun;Park, Jeong-Ho;Yoon, Sang Chul;Yang, Jae Hyeong;Sohn, Myoung Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.47 no.6
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    • pp.935-944
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    • 2014
  • To elucidate the variation of species composition, biomass and size distribution of fishery resource in the Uljin marine ranching area was investigated at the 4 stations from 2009 to 2010 based on the dredge sampling. During the survey period, a total of 41 fishery resource species were sampled with a mean density of $2,554,633\;ind./km^2$ and mean biomass was $32,946kg/km^2$. A total 36 fishery resource species were sampled with a mean density of $3,198,793\;ind./km^2$ and mean biomass $41,177kg/km^2$ in 2009 and it were sampled a total 31 species, mean $1,910,473kg/km^2$ and $24,716kg/km^2$ in 2010. The major individual-dominant species, occupying over 1% of total individuals, were Gomphina veneriformis (2,491,818 ind., 82.2%), Umbonium costatum (221,973 ind., 8.7%), Mactra chinensis (49,879 ind., 2.0%), Glossaulax didyma hayashii (49,879 ind., 1.9%), Blepharipoda liberate (37,714 ind., 1.5%) and Paguridae spp. (27,266 ind., 1.1%). The major biomass-dominant species, occupying over 1% of total biomass, were G. veneriformis (25,124 kg, 76.3%), G. didyma hayashii (2,596 kg, 7.9%), M. chinensis (2,024 kg, 6.1%), Ovalipes punctatus (921 kg, 2.8%) and Glossaulax didyma didyma (567 kg, 1.7%). From the cluster analysis based on Bray-Curtis similarity matrix of fourth root transformed data of species number and individuals was divided into 2 different groups of the fishery resource community (Group A-St.1, Group B-Sts. 2, 3, 4). The 2009 and 2010 mean Shell length (mm) of G. veneriformis was 37.73 mm, 29.76 mm and M. chinensis was 62.03 mm, 44.94 mm, respectively.

Some Thoughts on the Common Fisheries Policy of the European Community (유럽공동체의 공동어업정책에 관한 소고)

  • 박명섭
    • The Journal of Fisheries Business Administration
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    • v.23 no.2
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    • pp.1-15
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    • 1992
  • With the major changes in fisheries management brought about by technological, politico -legal, and economic and biological development, new problems have emerged in the fisheries sector of the European Community countries. In 1986, the entry of Spain and Portugal to the European Community made the Community the third biggest producer of fishery products in the world. It also had considerable impact on the Common Fisheries Policy (CFP) due to their fishing fleets. This article examines the complexity of establishing the Common Fisheries Policy in the European Community, while underlining the value of such an approach. It reviews four main areas of the common fisheries policy : access to waters and the conservation and management of stocks ; organization of the market ; structural changes and research, and international relations. It also discusses the specific fisheries problems to which the approach of CAP has been applied. It is argued that the fishery resource policy was the most trublesome to put into practice. It is the forum for such thorny questions as total allowable catch (TAC) and the sharing out of TAC between member states. It is shown that there are many things to be tackled in the CAP for the deeper integration in the fisheries sector. The author concludes by suggesting that the Common Fisheries Policy would be a suitable example to which Republic of Korea could refer in concluding reciprocal fisheries agreements with other countries and making the cooperative fisheries policy with North Korea.

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A Comparative Study on Fisheries System between South Korea and North Korea (남북한 수산제도의 비교연구)

  • Cha, Cheol-Pyo
    • Journal of Fisheries and Marine Sciences Education
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    • v.24 no.2
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    • pp.311-323
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    • 2012
  • For establishment of post-Unification fisheries program, this research has opened a fisheries Act system for South and North Korea and searched a policy direction to make new Fisheries Act for future South and North Korean fisheries program. In addition, North Korea's present fishery industry must be accurately understood and acknowledge in its point of issues in order to develop and improve to rational direction and to overcome the present South and North's fishery industry. As a level to prepare for future unification, reform and reaction of long-termed and well organized South and North's fisheries program must be arranged. Consequently, fishing permits of South and North, licensing system, fisheries resource management system, fisheries adjustment system, foreign fishing regulations system will be compared in this research, and also find an improvement on North Korea's fisheries related act in preparation of future unification.

Analysis of Economic Effects and Basic Theoretical Frameworks of ITQ Fishery Management - Focusing on the Red Crab Trap Fishery - (ITQ 어업관리의 기본이론과 경제적 효과분석 - 붉은대게어업을 중심으로 -)

  • Lee Sang-Go;Lee Yong-Soo
    • The Journal of Fisheries Business Administration
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    • v.36 no.3 s.69
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    • pp.119-139
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    • 2005
  • The purpose of this paper is to provide information that will help both fishing industry and fisheries authority understand the principals of individual transferable quota(ITQ) fishery management. Theoretical frameworks and primary features of ITQ fishery managemenet are the assignment of exclusive property rights for harvest of common - property fisheries resources. An ITQ fishery management is fundamentally different from the conventional fishery management and it gives an individual fisherman the right to catch a specified quantity of fish, his quota. With ITQ, fisherman's quotas are transferable, in whole or in part. An ITQ is a property with certain rights of use, namely, the right to catch a given quantity and species of fish in a specific location during a specific period of time. The right is exclusive in the sense that no one else has the right to use the quota without the owner's permission. The property may be assigned, traded, and exchanged; i.e., the owner has the right to transfer an ownership to others. An ITQ fishery management leads to both economic efficiency and resource conservation. Motivations to overexploit stocks and to overcapitalize should be lessened because fishermen no longer have to compete for limited resources. There are significant positive net benefits and advantages with ITQ fishery management than without. The potential benefits and advantages of ITQ fishery management include increased profits, economic stability, improved product quality, safer working conditions, less gear conflict, elimination of the race - to - fish phenomenon, less by - catch, less gear loss, improved investment climate, mitigation of market gluts, waste reduction, addition to fisherman's wealth, and compensation for fisherman exiting the fishery. As an independent observe to Red Crab Trap Fishery some of the benefits, problems, and effects, an ITQ fishery management in Red Crab Trap Fishery is still far from to be implemented. Many different and difficult aspects (biological, socioeconomics, administrative) are involved considering the implementation of ITQ fishery management in Red Crab Trap Fishery. Among other fishery management tools, the implementation of ITQ fishery management in Red Crab Trap Fishery is considered to be the best in achieving the better conservation of fisheries resources and their more economic and rational exploitation. Korean fisheries authority should pay great attention to the experience of the economic effects of the ITQ fishery management in Red Crab Trap Fishery in the hope of being able to implement at least some of those experiences into the Korean fishery management.

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A Study on the transition of Korean-China Fisheries Agreement and improvement of fisheries-relation issues between two countries (한중 어업질서의 진단 및 양국 어업관계의 개선 방향)

  • Kim, Dae-Young
    • The Journal of Fisheries Business Administration
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    • v.45 no.3
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    • pp.19-37
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    • 2014
  • This study is to focus on the status of implementation of bilateral-fishery order based on the Korea-China fisheries agreement and aims to improve fisheries relationship between two countries. Korea-China Fisheries Agreement entered into force in 2001, and serves as a basic framework of the bilateral fisheries order. However, the fishing order between Korea and China has the following limitations. First, it is standstill of joint response for a practical resource management. Second, there are still gaps between the quotas of mutual accord fishing and fishing operation work performance. Third, China's illegal fishing is taking place consistently. Fourth, the effective cooperation between two countries in fisheries is not carried out. Finally, the Korea has faced difficult situations to adhere to a balanced position in the fishery negotiations due to conflicting positions on China and Japan. In order to solve these problems, the fishing order between Korea and China will be able to maintain the competitiveness of Korean fishery sector by reinforcing Korea's fishing sovereignty, Korea and China, based on trust and cooperation, will make efforts to improve bilateral fisheries relations to maximize mutual benefit in fishery sector. Specifically, first, the two countries should strengthen the resources management based on the scientific research and the improvement of imbalance of the mutual agreed fishing in EEZ. Second, Korea has to achieve our targeted performance of fishing operation and establish a joint resources management system between two countries in the provisional measure zone. Third, Korea should implement to collect fisheries information about China fishing vessels which are operating in the EEZ of Korea. Finally, Korea and China should be building up effective governance framework for the establishment of fishing order.

Analysis of estimating fisheries resource catch amount in recreation fishing vessel (낚시어선 어획량 추정에 관한 연구)

  • LEE, Kwang-Nam;LEE, Kyounghoon;HUH, Ji-yeon;LEE, Dong-hyuk
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.58 no.1
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    • pp.75-84
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    • 2022
  • Since South Korea did not adopt the recreation fishing using right (coupon) system, there were no recreation fishing statistics. This study selected 480 fishing vessels (10.4%) of a total of 4,611 fishing vessels (as of December 2019) as a survey sample using stratified sampling. Unlike other research institutes that conducted surveys related to the amount of tide on a one-time, this survey was conducted for five months (from May to October 2020, except the month of August). The captain investigated about types of fish, size, weight, etc. to anglers. A difference from previous studies was that about 7.0 million angler population (fishing more than three times a week) had 19.4 kg of catch per person for a year while other studies showed about 25.5-52.0 kg, respectively. The total fisheries resource catch amount was analyzed to be about 95,000 tons in this study and 116,000-166,000 tons in other studies. So there was a difference of about 1.2 to 1.8 times. This study aims to lay the foundation for the development of the fishing industry by preparing accurate statistical data and securing reliable basic statistics related to the fishing industry. Also, it could be usefully used as basic policy data such as introduction of a fishing using right (coupon) system.