• 한국어류학회지
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• 제33권1호
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• pp.22-30
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• 2021

이 연구는 한산도 여차 잘피밭의 어류상 조사를 통해 월간 출현 어종을 알아보고 인근의 봉암 조사 결과와 비교하고자 하였다. 조사는 2009년 8월부터 2010년 7월까지 지인망을 이용해 수행하였고, 조사 기간 동안 총 29종 2,394개체, 10,378 g의 어류가 채집되었다. 우점종은 살망둑이었으며, 다음으로는 복섬, 그물코쥐치, 점망둑, 망상어 순이었고, 이들 6종이 총 개체수의 89%, 생체량의 83%를 차지하였다. 잘피밭에서의 어류 종조성은 계절에 따른 변화가 뚜렷했으며, 개체수는 5월에 증가하기 시작하여 7월에 가장 많았고, 생체량은 4월에 최고값을 나타낸 후 지속적으로 감소하였다. 이번 조사에서 월별 개체수와 생체량 변동 및 타 논문과의 비교를 통하여 여차 잘피밭이 어류의 성육장으로서 중요한 역할을 하고 있는 것을 확인할 수 있었다. 따라서, 앞으로도 잘피밭에 서식하는 어류에 대한 주기적인 조사를 통해 남해안 연안 어류상 변화에 대비한 자료를 확보할 필요성이 있을 것으로 판단된다.

• 수산해양기술연구
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• 제56권1호
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• pp.18-25
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• 2020

Monthly fluctuation in abundance and species composition of fish in coastal waters off Oenaro island, Goheung were investigated using seasonal samples collected by a shrimp beam trawl in 2018. A total of 5,981 fishes were sampled and classified into 48 species, 32 families, and 9 orders. The dominant species was Engraulis japonicus (993 individuals, 16.60%), Amblychaeturichthys hexanema (844 individuals, 14.11%), and Thryssa kammalensis (674 individuals, 11.27%). The highest number of individuals was found in August (958 individuals), while the lowest number of individuals was found in January (136 individuals). The diversity index was the highest in November (H' = 2.37) and the lowest in January (H' = 1.77).

• 한국수산과학회지
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• 제46권6호
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• pp.948-956
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• 2013

Seasonal variations in species composition and abundance of the fish assemblages in the coastal waters off Gadeok-do were determined using monthly sample collection by a small otter trawl in 2010-2011. Of a total of 65 fishes collected, the dominant species were Leiognathus nuchalis, Clupea pallasii, Thryssa kammalensis, Engraulis japonicus, Repomucenus valenciennei, Sillago japonica, Trachurus japonicus, Pennahia argentatus, Okamejei kenojei, Cynoglossus joyneri, Pholis fangi, Pleuronectes yokohamae, and Zoarces gillii. These 13 fishes accounted for 92.8% of the total number of individuals collected. The number of fish species, number of individuals, biomass, and species diversity indices fluctuated with the seasons. The peak number of fishes occurred in April, whereas the biomass of fishes was highest in August. The numbers and biomass of fishes were lower in February corresponding with the low temperatures, and diversity indices were lower in January than in any other month.

• 한국수산과학회지
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• 제22권1호
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• pp.1-8
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• 1989

Demersal fish community in Cheonsu Bay was analyzed using fish samples collected by a small otter trawl from March to November, 1986. Of the 32 species identified, Nibea argentatus, Chaturichthys stigmatias Crptocentrus filifer, Cynoglossus joyneri and Jonius belengeri pre-dominated in abundance. Based upon principal component analysis of species composition data, the fishes were grouped into resident, migrant and temporal species. Resident fish wintered in the deeper part of the bay, showing a peak in biomass during cold months. In spring, warm weather seasonals, adult N. argentatus and J. belengeri, migrated o the bay for spawing. However, the biomass of the migrant was not more than that of the wintered adult residents. From July to September, juveniles of many species were collected, but the number of individuals was smaller than that of the littoral or pelagic zones. This suggests that the deeper area of the bay did not serve as a main nursery ground of the juveniles with the exception of two migrant scianid fishes. As a result, the benthic fish of the bay were more abundant in cold months than in summer.

• 한국어류학회지
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• 제26권2호
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• pp.133-138
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• 2014

진해만에서 동계기간 동안 자어의 분포 및 종조성에 관하여 조사하였다. 조사기간 동안 8과 12종이 출현하였고, 우점종으로는 Pholis crassispina, Clupea pallasii, Liparis tanakae, Hexagrammos otakii였다. 이들 4종은 출현한 총 개체수의 93%를 차지하였다. 잠도와 칠천도 동쪽에서 높은 밀도와 종 다양성을 보여, 이 지역이 진해만에서 자어의 주요 산란장인 것을 의미한다.

• 수산해양교육연구
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• 제27권5호
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• pp.1499-1507
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• 2015

The aim of this study is to research on the recognitions and preferences of Puffer fish consumers with the recently increasing well-being trend. To carry out this research, the main analysis was focused on two specific points: how much consumers perceive swellfish and which kinds of Puffer fish foods are preferred by consumers. Although the consumption of Puffer fish is gradually expending, at the same time, there are also numerous obstructive elements in consuming swellfish. In this regard, this test on Puffer fish food will be able to contribute to show an outlook for the Puffer fish food market in the future and to promote consumption of Puffer fish as well. Methodologically, a statistical research was adopted to find out how people understand Puffer fish and the patterns of their choices and intensive examinations were conducted throughout the collected questionnaire. For a more effective outcome, it was necessary to divide into two groups, the Nation's capital area with Seoul as a center, the most densely populated area and Busan, the biggest marine products consumption area, examining the inclination to consume with regions. In the concrete, the detailed research survey on the Puffer fish were performed with the opinions of the five hundred people from capital area and the five hundred people from Busan area. The difference and common features of consumer's recognition about Puffer fish food were founded through cross analysis according to age, gender, regions, and income. In conclusion, this research showed the difference tastes and recognition standards toward Puffer fish among consumers from Seoul and Busan areas. If it is possible to apply this result to the efforts of improving supplier's understanding about Puffer fish consumers' features and cultivating new Puffer fish items, it could contribute to the further consumption of Puffer fish food in the long term point of view.

• 수산해양기술연구
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• 제43권4호
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• pp.261-273
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• 2007

To analyze quantitative fluctuation in abundance and species composition in coastal waters of Dolsan, Yeosu, the fished were collected by gape net from March to November, 2000. The fish species caught by set net collected fishes were identified 63 species, 56 families, 42 orders, and the number of appearance and biomass was 2,230,297 individuals and 16,076.8kg. The most dominant orders were Perciformes, Clupeiformes and Tetraodontiformes which accounted for 71.4% of the total. The dominant species in number were Engraulis japonicus, Sardinops melanostictus, Trichiurus lepturus which accounted for 99.2% (2,211,642 individuals) of the total fishes collected. The dominant species in biomass were Engraulis japonicus which accounted for 79.7% (12,807g) of the total fishes collected. Temporal occurence of the dominant species such as the Engraulis japonicus, Sardinops melanostictus, Trichiurus japonicus, Ilisha elongata, Leiognathus nuchalis was closely correlated with water temperature, which is expressed as following regression equation, $y=0.0864x-0.2311(r^2＝0.3516)$. The species collected during the sampling yearly period were Engraulis japonicus, and migratory fish were Ilisha elongata, Trichiurus japonicus, Scomberomorus nipphnius, Scomber japonicus, Konosirus punctatus, Sphyraena pinguis, Pseudosciaena polyactis.

• 한국어병학회지
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• 제19권3호
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• pp.215-225
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• 2006

자연산어류의 질병 감염 실태를 파악하기 위하여 2006년 6월에 남해안 해역에서 트롤에 의하여 어획된 개체 중 13 종 176 개체의 어류와 1 종 15개체의 새우류 등 총 191 개체의 자연산어류에 대한 바이러스성 및 세균성 질병에 대한 모니터링을 실시하였다. 조사 결과 우리나라 양식 어류의 주요 질병과 관련한 바이러스성 병원체의 존재는 확인되지 않았다. 시료 6 개체에서 세균이 분리되어 확인한 결과 Pseudomonas속 세균 5 균주와 Proteus속 세균 1균주가 확인되었으나 양식 어류의 폐사와 관련한 세균군은 아닌 것으로 판단되며, 양식산어류의 질병 발생에 대한 관련성을 밝히기 위하여 자연산어류에 대한 더 많은 조사가 필요할 것으로 사료된다.

• 한국수산과학회지
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• 제53권5호
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• pp.761-772
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• 2020

In order to study about species composition and community structure of fish in the coastal water off Boryeong were investigated from January 2018 to December 2019. A total of 10,863 individuals of 87 species of 44 families were collected. The dominant species were Liparis tanakai accounted for 19.8 percent of the total with Amblychaeturichthys hexanema and Collichthys niveatus accounted for 12.4 percent and 11.0 percent of the total number. A cluster analysis based on the Bray-Curtis similarity revealed that the fish community divided into two groups, According to season. The fish species that appeared summer and autumn were mainly migratory, while the fish species that appeared in spring and winter were mainly resident species. Fish caught by stow net had a high percentage of immature fish. It presented that coastal water off Boryeong is located an important spawning and nursery for fisheries resource.

• 수산해양기술연구
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• 제51권2호
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• pp.171-178
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• 2015

Selectivity and by-catch are the main features used to define fish catch for fisheries management or to determine fishing gear efficiency. A fish girth distribution analysis was carried out to determine the retention rate of juveniles discarded and to establish common selectivity for a multispecies catch. Total body length, body weight, and girth of juvenile fish retained in the cod-end and cover net separately were collected using an 18-mm mesh cover net during 12 fishing trials with a 41-mm cod-end beam trawl. The by-catch weight ratio in the cod-end was twice that of the by-catch ratio in number. The 50% selectivity of body length and 50% girth of redfin velvet fish were not significantly different between the cod-end and cover net, whereas those of other fish species were significantly different between the cod-end and cover net. The difference in 50% selectivity girth of other fish between the cod-end and cover net was similar between cod-end mesh size and cover net mesh size. Furthermore, the difference in 50% body length selectivity of other fish between the cod-end and cover net was almost double the difference in girth. Girth selectivity in a multispecies catch using towed fishing gear was effectively used to determine fish and net mesh size.