Park, Hae-Kyung;Lee, Jangho;Yun, Seuk-Hwan;Choi, Myung-Jae
Journal of Korean Society on Water Environment
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v.29
no.1
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pp.7-18
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2013
We compared the structure of fish community and condition of major fish species in Lake Chungpyung and Lake Paldang, which are relatively shallow, meso-eutrophic, cascading dam reservoirs on the North Han River. Two lakes have wide littoral zone in the lakeside providing similarly good habitat for fishes, whereas fishery and water recreational activities such as motorboating, water skiing are allowed in Lake Chungpyung but are prohibited in Lake Paldang. The average lengths of large size fishes in Lake Chungpyung are shorter than those of same species in Lake Paldang, resulting in the slight distortion of generation distribution of those species in Lake Chungpyung, possibly owing to the active fishery such as fixed shore net fishing, gill net fishing and angling. Meanwhile the condition of fishes represented by the length-weight relationship of fish species did not show the significant differences between two lakes and showed normal condition. To evaluate the impact of physical disturbance such as loud noise and turbulent wave from water recreational activities to fishes precisely, further studies including physiological responses to stress an spawing activity should be needed.
Journal of Fisheries and Marine Sciences Education
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v.9
no.2
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pp.121-148
/
1997
The Japanese fishery management system has been established on the basis of various experience accumulated over many years. The fishery management system in Japan, one of the oldest fishery management systems in the world, is aimed at ensuring comprehensive utilization of the water surface and developing fishery productivity, by giving protection of the breeding environment of aquatic animals and plants, enabling the appropriate use of fishery grounds, preventing and solving disputes over fishery grounds and making other fishery adjustments. Japanese Fishery Law has been changed largely into (1) The Feudal Era(to 1900), (2) The Oldest Fishey Law(1901~48), (3) Current Fishery Law(1949 to present). Japanese fishery legislation is designed as a single package combining coastal, offshore and distant-water fisheries. During the period of the old fishery law, numerous conflicts arose over the joint use of fishing grounds and fish stocks. Such conflicts occurred among users of the same gear as well as between users of different gears or of different sizes of fishing craft. Large scale conflict sometime occurred between neighbouring fishing communities due to a lack of fairness in principle and coordination in practice. Therefore, the new fishery law enacted in 1949. This law was designed primarily to realize the most effective and rational use of fishing grounds and fishery resources, the basic philosophy being that, through democratic organization by fishermen themselves, productivity would be stimulated and incomes and living standards eventually improved. Nowadays, Community Based Fisheries Management through democratic organization by fishermen themselves have to enforce at coastal fisheries. This Community Based Fisheries Management manage to fishery resources by fishermen themselves and harvest in collaboration with that resources. Therefore, this paper is intended to briefly to describe the entire system and the historical development of Japanese fishery legislation in order to assist in reform of our country fisheries management regime.
Dietary fiber(DF) intake of teenagers was estimated and the major food sources of fiber were analyzed using three-day food records and data from 365 middle school students in urban, rural and fishing areas. Mean dwily DF intake of males was 9.2$\pm$3.9g in urban, 10.4$\pm$5.4g in rural, and 7.9$\pm$4.0g in fishing areas and the intake of female was 10.6$\pm$5.1g in urban, 10.6$\pm$5.2g in rural, and 7.7$\pm$3.3g in fishing areas. When related to energy intake, female consumed more DF(5.7$\pm$2.5g/1000㎉, 7.0$\pm$3.5g/1000㎉, 4.6$\pm$2.2g/1000㎉, in urban, and rural, fishing areas respectively) than males(4.2$\pm$1.3g/1000㎉, 4.6$\pm$1.5g/1000㎉, 4.4$\pm$2.0g/1000㎉ in urban, rural, fishing respectively). Mean crude fiber(CF) intake of males was 4.1$\pm$1.7g, 4.5$\pm$2.4g, 3.7$\pm$2.4g, and female's intake was 4.7$\pm$1.9g, 4.8$\pm$2.2g, 3.7$\pm$1.9g in urban, rural, and fishing areas respectively. The mean DF : CF ratio for the subjects was 2.2-2.6, indicating that the DF intake is 2-3 times that of CF intakes. The intakes of the two measures of fiber were highly correlated(r=0.7781) . The major food sources for DF were cereals, vegetables and fruits and the percentage contributions of the food groups to the DF intake were 27-37$\%$, 22-30$\%$, and 11.5-19.7$\%$ respectively. The present study indicates that the DF intake of teenagers is considerably lower than the recommended level and they need to consume more DF than that indicated by the present levels. The importance of nutrition education on health and dietary pattern should also be emphasized among teenagers.
This study investigates the differences among residental areas in the health, standard of living, and social relationships of female elderly living alone. The total of 501 subjects(185 from rural areas, 159 from fishing communities, 77 from the islands, and 80 from urban areas) were questioned from May to July, 2006. The research area was confined to Chungcheong Province. The female elderly living alone of this study were an average of seventy-three years old, had a low cost of living, and received little formal school education. Over sixty percent(60.3) of them lived on less than thirty dollars a month which was the recognized Korean poverty level in 2006. The female elderly living alone were evaluated as being in good health, but they themselves perceived their health as being poor. Observed by residential areas, the subjects in urban areas were lower in ADL, and both the urban dwellers and the islanders appeared to be higher in their satisfaction with medical services as compared to those in rural areas and fishing communities. The fishing villagers showed the lowest standard of living for female elderly living alone. The analysis of social relationships as seen in the different residental areas revealed that the female elderly living alone g in urban areas tended to be receiving social supports rather than providing for others, and subjects living in fishing areas and the islands proved to be relatively higher in the exchange of social supports. In relation to offspring, the female elderly living alone in urban areas had a lower frequency of meeting with their children and also a lesser degree of intimacy with them because they lived at a distance. On the other hand, subjects living in rural areas and fishing communities had a higher frequency of meeting with their children and a greater degree of intimacy with them even if they lived at a distance. The study also showed that the female elderly living alone in the islands had a higher frequency of once meeting per three week with their offspring and a higher degree of intimacy with them because they all live in the same islands. In conclusion, the subject living in urban areas appeared to be isolated from their offspring as compared to the other seniors in the study. The female elderly living alone in urban areas suffered from an insufficient network of relatives and neighbors, and they experienced a poor quality of relationships to their offspring. Almost all of the lone seniors in the study had a low score in social activities; however, the female elderly living alone in urban areas revealed a higher level of participation in volunteer activities, group activities, and educational activities. Nevertheless, the lone seniors living in urban areas were not satisfied with their participation in social activities. The subjects living in rural in fishing communities and the islands showed more participation in money-making activities. This study suggests that the policies for female elderly living alone should reflect the differences of regional characteristics.
Since climate factors, such as precipitation, temperature, etc., show repeated patterns every year, it can be said that future changes can be predicted by analyzing past climate data. As with groundwater, seasonal variations predominate. Therefore, when a drought occurs, the groundwater level is also lowered. Thus, a change in the groundwater level can represent a drought. Like precipitation, groundwater level changes also have a high correlation with drought, so many researchers use Standard Groundwater Level Index (SGI) to which the Standard Precipitation Index (SPI) method is applied to evaluate the severity of droughts and predict drought trends. However, due to the strong interferences caused by the recent increase in groundwater use, it is difficult to represent the droughts of regions or entire watersheds by only using groundwater level change data using the SPI or SGI methods, which analyze data from one representative observation station. Therefore, if the long-term groundwater level changes of all the provinces of a watershed are analyzed, the overall trend can be shown even if there is use interference. Thus, future groundwater level changes and droughts can be more accurately predicted. Therefore, in this study, it was confirmed that the groundwater level changes in the last 5 years compared with the monthly average groundwater level changes of the monitoring wells installed before 2015 appeared similar to the drought occurrence pattern. As a result of analyzing the correlation with the water storage yields of 3,423 agricultural reservoirs that do not immediately open their sluice gates in the cases of droughts or floods, it was confirmed that the correlation was higher than 56% in the natural state. Therefore, it was concluded that it is possible to re-evaluate agricultural droughts through long-term groundwater level change analyses.
Journal of the Korean Institute of Rural Architecture
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v.13
no.1
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pp.29-36
/
2011
This paper aims to clarify the residential quarter organization and housing spatial form of fishing village in Eocheong-do Island. The results are as follows. First, island residential quarter is formed along the coastline, the detached house and the shop house are mainly located in the front of the coastline. Second, the inclination road which connects the northernmost end part and the seashore road is maintained as a road system of a residential quarter from the Japanese colony term until now. Third, It is the feature that Eocheong-do island has the wide width of the front of a site compared with other island residential quarters. Therefore, the frontage wide of a building is also large. Fourth, the entrance of the building where the frontage is mainly located right in the middle, and each rooms are located in the surroundings of it. Finally, the typical community space of Eocheong-do island is Pyeongsang(平床). Pyeongsang is space which receives various functions in inhabitants' life cycle.
Kim Yeong-Pyo;Yoon Han-Sam;Kim Heon-Tae;Ryu Cheong-Ro
Journal of the Korean Society for Marine Environment & Energy
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v.9
no.2
/
pp.65-71
/
2006
This study evaluated the results of a questionnaire survey taken by visitors and residents likely to be directly or indirectly affected by a proposed fishing village and port development in the Busan region. The questionnaire focused on various potential effects that the development would have on the local community and on ways to improve the development process, as well as on the priorities of such investment and the direction the development should take. Our goal was to determine the sentiments of the local citizenry regarding the proposed fishing village and port development in the Busan region.
Yoo, Joon-Taek;Kim, Heeyong;Song, Se Hyun;Kim, Yeong Hye
Korean Journal of Fisheries and Aquatic Sciences
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v.49
no.5
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pp.701-710
/
2016
We examined the inter-annual changes in the community structure of fish in the Yeosu coast during the spring fishing period (May June) from 2008 to 2015. Using a both sides fyke net, we collected 74 taxa, of which the dominant species was Trachurus japonicus. In the years 2009-2010 and 2015, when the relative abundance of T. japonicus decreased, the fish species diversity increased, as estimated from the rarefaction curve and beta-diversity, resulting in a significant difference in the fish community structure between two year groups: one comprising 2009-2010 and 2015 and the other comprising 2008 and 2011-2014. T. japonicus may be a keystone species that plays a critical role in temporal changes in the community structure of fish caught by fyke nets along the southern coast of Korea. Obvious modes in the length-frequency of T. japonicus smaller than fork length (FL) 10 cm were observed continually during the study, while the frequency of T. japonicus bigger than FL 15 cm declined rapidly after 2010. The new recruitment of smaller T. japonicus before and after 2010 appeared beginning in June and May, respectively.
Journal of the Economic Geographical Society of Korea
/
v.18
no.4
/
pp.395-414
/
2015
Diverse alternative economies have been discussed to overcome the problems with the globalizing neoliberal capitalism. Social economy and cooperatives are those focusing on the community economies; most countries have local economy-society based on mutual aid and common properties. Various experiences and institutions across local areas have been evolved to keep using their local resources in sustainable way. While recent social economy discussions in Korea are mostly in relation to economic crisis and focus on the Western experiences and institutions, the local area experiences in Korea are similar to the rules universal across countries along with particulars developed from local circumstances. Jeju has maintained village common fishing ground and Isidore farm which has been developed as an innovative type of cooperatives. These cases help to find community economies in practices and studying local experiences would enhance the opportunity to succeed in finding and practicing real alternative community economies in other local areas.
To understand the composition and community changes of benthic species by water depth (5 m, 20 m, 30 m) in the cage facilities, net substrate made of fish cages were installed at intervals of 2 months from March to September 2019, which is the main period of sessile organism recruitment. Water temperature and salinity varied in the ranges of 1~5℃ and 1~4 mg/L at 5 m from June to August, respectively, and less difference was observed according to water depth in other investigation periods. A total of 37 benthic animals were recruited, and Kamptozoa unid., Caprella scaura and Jassa slatteryi were verified during the entire study period. Mytilus galloprovincialis, a Mediterranean mussel, showed seasonality dominant only from spring to early summer (March to July). The community structure classified by temporal and spatial factors, and Bugula neritina, Kamptozoa unid., and Sertularella sp. contributed to the formation of the community. The depth of 5 m was exposed to environmental changes in water temperature and salinity temporally, so there was a seasonal variation in the composition of the sessile organism, but at depths of 20 m and 30 m, there was less significant environmental change and it showed relatively stable than 5 m.
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