• Fisheries and Aquatic Sciences
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• v.27 no.8
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• pp.488-500
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• 2024

The purpose of this research is to analyze the conservation aspects of fishing techniques in small-scale fishing activities in Labuhan Maringgai. The research was conducted from August to November 2022 in Muara Gading Mas village, Labuhan Maringgai, eastern Lampung. The Ecosystem Approach to Fisheries Management (EAFM) was employed as the methodology. The secondary data utilized in this study consisted of fisheries record books and fisheries monitoring reports. The indicator aspects cover 6 domains, namely: Habitat, Fish Resources, Fishing Technology, Social, Economic and Institutional. By employing the EAFM domain value classification, the fisheries management status was determined to be of medium level, with a total aggregate value of 1,204.3. However, the small-scale capture fisheries in Labuhan Maringgai, East Lampung, were categorized as medium status, but with values that tended to be low, particularly in the social domain composite value. This can be attributed to conflicts of interest, compliance levels, and efforts in capacity building.

• Journal of Species Research
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• v.6 no.spc
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• pp.8-14
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• 2017

Taeniacanthid copepods Anchistrotos kojimensis Do and Ho, 1983 were collected from the branchial cavities of stichaeid fish, Ernogrammus hexagrammus (Schlegel) and yellowfin goby, Acanthogobius flavimanus (Temminck and Schlegel) in Korean waters. Here, we provide the first description of a male of Anchistrotos Do and Ho, 1983. A close comparison of the specimens of A. kojimensis collected from Korea with the original description revealed differences in the adult female: (1) the caudal ramus bears seven setae (seta I minute); (2) the maxillule with small knob-like process anteriorly; (3) leg 5 ornamented with patched spinules distally and having row of spinules at base of each spine and distal seta. The first description of the adult male reveals the following features: (1) the distal abdominal somite had rows of spinules anteriorly and near insertion of each caudal ramus; (2) the postantennal process is more elongate than in the female; (3) the basis of maxilliped is with two prosimomedial setae, two longitudinal rows of stout denticles found on posteromedial surface and row of spinules on anteromedial surface; and (4) the second endopodal segment is a strongly curved claw, with a row of stout denticles along a concave margin, two long and one small setae.

• Korean Journal of Ichthyology
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• v.20 no.4
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• pp.279-284
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• 2008

The feeding ecology of endangered Cottus hangiongensis was studied in the Hosan stream from September 2006 to August 2007 by collecting them seasonally. The stomach contents of C. hangiongensis consisted mainly of aquatic insects and Nematoda, small fish, fish eggs, snails (Semisulcospira libertina), and small stones were also observed. The main aquatic insects in the order of relative importance were Diptera, Trichoptera, Ephemeroptera and Plecoptera. The most important prey items were Chironomidae sp.1 and Hydropsyche kozhantschikovi. Change in the main prey organisms by season were Trichoptera in the spring and the summer, Diptera in the autumn, and Plecoptera in the winter by ratio of dry weight.

• Parasites, Hosts and Diseases
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• v.60 no.1
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• pp.45-49
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• 2022

The Japanese amberjack Seriolae quinqueradiata is one of the most consumed fish species among the Koreans. However, information regarding parasitic infection in Japanese amberjack is scarce. This study described the morphological and molecular characteristics of a species of philometrid nematode, Philometroides seriolae, which was recovered from Japanese amberjack. This fish was caught in the sea of Goseong-gun, Gangwon-do, Republic of Korea (Korea). Six P. seriolae (Nematoda: Philometridae) were recovered from 2 Japanese amberjacks. These parasites were subgravid female which were 325-420 mm long and 2.95-3.27 mm wide. Furthermore, they had typical papillae distributed on their body surface with 14 papillae at the apical view. Sequence analysis of the small subunits of ribosomal RNA (SSU rRNA) showed high sequence identity (99.8%, 1,607/1,611-bp) with that of P. seriolae (GenBank accession no. FJ155811). This nematode species has been newly added to the Korean nematode fauna.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.56 no.3
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• pp.341-346
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• 2023

This study aimed to suggest an alternative income generation (AIG) for local artisanal fisheries communities in the southern coastal area of Bangladesh, which is vulnerable to climate change. To analyze the problems of local artisanal fisheries caused by climate change, field surveys and in-depth interviews with fishermen and government officials were conducted. Livelihood risk factor (LRF) in the marine fishing sector included reduction of fishing days and fish production and damage to fishing vessels and fishing gear due to cyclone and sea-level rise. LRF in the aquaculture sector included cultured fish escape, reduction of aquaculture production, and water pollution due to Monsoon flood. A common challenge for two sectors was high interest rate on commercial loans. Small-scale tank aquaculture is recommended as AIG for securing income of artisanal fisheries communities. In the early stages of dissemination of small-scale tank aquaculture technology, it is necessary to prevent fishermen from struggling to repay high-interest rate loans through technology transfer and facility support by official development assistance. The aquaculture training center, along with the technical education, will also contribute toward expansion of local distribution network and marketing support to establish a value chain for local artisanal fisheries communities.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.373-374
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• 2022

The sea-communication fishing equipment installed on small vessels such as offshore fishing vessels is highly dependent on foreign products due to its high dependence on foreign products. From the perspective of domestication, the development of localization at the overseas level is underway, and we intend to demonstrate it by creating a dedicated testbed in order to secure track records. In this paper, we wanted to derive the testbed shape and design method through basic research for the design of the testbed.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.34 no.3
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• pp.320-327
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• 1998

The feeding habits of jack mackerel, Trachurus japonicus, collected from the Nakdong River estuary from February 1987 to January 1988 were studied. Jack mackerel(4~15cm SL) was a planktivore which fed mainly on copepods, amphipods and mysids. Its diets included small quantities of decapods, euphausiids, polychaetes, chaetognaths and fish larvae. Paracalanus parvus. Acartia clausi and Calanus sinicus were the three most abundant copepod species found in the stomach contents of jack mackerel. Jack mackerel showed ontogenetic changes in feeding habits. Small individuals of the fish(4~7cm SL) preyed heavily on copepods. However, the portion of copepods in stomach contents decreased with increasing fish size, and this decrease was compensated by an increased consumption of amphipods and mysids.

• Journal of the Korean Society of Food Culture
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• v.7 no.1
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• pp.35-42
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• 1992

To analyze reception dishes of Choson Dynasty, studied historic book 'Youngjeob Dogam Younhyangsek Euigwae' (1609, 1634, 1643 year) discribed feast dishes for Chinese envoy in Choson dynasty. The results obtained from this study are as follows. 1. the feast dishes consisted of the first main feast dishes (下馬宴, 上馬宴) the Second main feast dishes (翌日宴, 請宴 and etc) and the third main feast dishes (別茶啖). 2. 翌日宴 were arranged in two kinds of table, the first one called the main table, the second the confronting side table. Dishes of main table were oil and honey pastry and fruits. Dishes of the second table were cooked vegetable, dried slices of meat seasoned with spices, cooked meat and fried fish. In feast, Chinese envoy drank 11cups (1609 year) and 5 cups (1643 year) of liquor. At the first cup they abalones soup, others in a small round table (初味), a small boiled meat (小膳) and a large boiled meat (大膳), at the second cup eat 二味, at third cup eat 三味... at the eleventh cup, they eat 十一味. 3. 別茶啖 (1643 year) were arranged in one kind of table. Dishes of the table were oil and honey pastry, fruits, honey water, dried fish and meat, cooked meat and fish, and cooked egg. In feast, Chinese envoy drank 5 cups and eat 一味${\sim}$五味.

• Korean Journal of Ichthyology
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• v.20 no.1
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• pp.36-44
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• 2008

Feeding habits of Micropterus salmoides were investigated from the stomach contents of specimens ranging from 13 to 511 mm in standard length (n = 419), which are collected in the Lake Okjeong, Korea, 2006 to 2007. M. salmoides is a very strong carnivorous fish eating living organisms such as lots of fishes, small amount of aquatic insects and shrimps. As they grow, the feeding habits changed : they fed mainly on Branchioda in 10 to 20 mm in SL., aquatic insects and small fishes in 30 to 50 mm in SL., fishes including Zacco platypus, Hemiculter eigenmanni and Rhinogobius brunneus over 50 mm. However, among the prey organisms, M. salmoides most preferred living fishes. Analysing ichthyofauna of the Lake Okjeong from 1981 to the present investigation, after and before introduction of M. salmoides, it was showed that there was a certain reduction in fish diversity. Consequently, it is likely to let the strongly fish-eating habit to reduce a diversity of native fishes in the lake.

• The Journal of Fisheries Business Administration
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• v.36 no.1 s.67
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• pp.139-153
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• 2005

Marine fish aquaculture has been introduced on the East sea since 1964. The production volume of the marine aquaculture has been increasing drastically since 1990 with the technological improvements and the introduction of new species. However, the increasing costs of feed, seedlings and medical supplies and the decreasing prices due to the increase in the imports and domestic production have decreased the profits in the aquaculture business. Futhermore, the damage from the natural disasters such as red tides and typhoons has accelerated the exit from the business. Even though managing abilities to overcome the business crisis caused by the above factors are required, business managers based on the small scale family businesses do not have enough managing abilities to deal with the difficulties in the business. On the other hand, advanced countries in the marine aquaculture such as Norway have reached the stage where the managing abilities of marine aquaculture are similar to those in the manufacturing industry. And the number of large scale aquaculture farms with developed technologies and advanced marketing strategies in those countries is increasing. Considering that the marine aquaculture in Japan under the similar fishery systems of Korea has developed the state-of-the-art management skills or lead to large scale management, it is difficult to expect the decrease in the production costs under the small scale family business in Korea and this will lead to the decreasing competitive advantage over the imported seafood. Therefore marine aquaculture in Korea needs to increase the economy of scale to acquire the competitive advantage. This study addresses the possibility of introducing the large scale aquaculture system in Korea by analysing the factors and process of leading to large scale businesses in the aquaculture in Japan.