Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1038
Seung-Yong Kim, Tae-Sik Yu, Jin-Joo Woo, Seong-Hoon Lee, Kyeong-Ho Han
Species composition of fish eggs and larvae was investigated from August, November in 2014 and February, May in 2015. During the study period, the fish eggs were identified as belonging to 10 taxa. The dominant species of fish eggs were Engraulis japonicus, Sardinops sagax, Nuchequula nuchalis. These three species accounted for 80.8% of the total number of individuals collected. The larval fishes collected were identified into 17 taxa, 15 families, and 4 orders. The dominant species of larval fish were Engraulis japonicus, Repomucenus spp., Sardinops sagax. These three species accounted for 70.2% of the total number of individuals collected. All the species were assessed for their richness, evenness, diversity, and dominance to gain a measure of the biodiversity. The richness index was the highest in May (R=1.58) and lowest in November (R=0.63). The evenness index was the highest in February (J=0.91) and lowest in May (J=0.57). The diversity index was the highest in February (H =1.62) and lowest in November (H =1.22). Furthermore, the dominance index was the highest in May (D=75.2%) and lowest in February (D=52.6%). The similarity index of community structure showed the highest index between August and November (59.7%) and lowest index between August and February (6.2%).
{"title":"Species Composition of Fish eggs and Larvae in the Coastal Water of Nang Island, Yeosu","authors":"Seung-Yong Kim, Tae-Sik Yu, Jin-Joo Woo, Seong-Hoon Lee, Kyeong-Ho Han","doi":"10.13000/jfmse.2021.10.33.5.1038","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1038","url":null,"abstract":"Species composition of fish eggs and larvae was investigated from August, November in 2014 and February, May in 2015. During the study period, the fish eggs were identified as belonging to 10 taxa. The dominant species of fish eggs were Engraulis japonicus, Sardinops sagax, Nuchequula nuchalis. These three species accounted for 80.8% of the total number of individuals collected. The larval fishes collected were identified into 17 taxa, 15 families, and 4 orders. The dominant species of larval fish were Engraulis japonicus, Repomucenus spp., Sardinops sagax. These three species accounted for 70.2% of the total number of individuals collected. All the species were assessed for their richness, evenness, diversity, and dominance to gain a measure of the biodiversity. The richness index was the highest in May (R=1.58) and lowest in November (R=0.63). The evenness index was the highest in February (J=0.91) and lowest in May (J=0.57). The diversity index was the highest in February (H =1.62) and lowest in November (H =1.22). Furthermore, the dominance index was the highest in May (D=75.2%) and lowest in February (D=52.6%). The similarity index of community structure showed the highest index between August and November (59.7%) and lowest index between August and February (6.2%).","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128862313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1263
Dal-Hyo Kim
Since human society is composed of male and female, it is necessary to find out whether there is a difference in the interests of male and female in order to create a social community of understanding and respect This study analyzed the differences between male and female in 10 different areas of interest by surveying 193 university students. The main results of this study are as follows. First, the 10 areas of interest of male and female college students through FGI were politics, economy, sports, games, society, culture, entertainment, love, shopping, and travel. Second, in the fields of politics, economy, sports, games, and love, male students were more interested than female students. On the other hand, in the fields of entertainment, shopping, and travel, female students were more interested than male students. In the social and cultural fields, there were no statistical difference in the interests between male and female. Finally, the results of this study are expected to be a little help in understanding and respecting the differences interestingly, not the superiority between male and female. And I hope that it will be a small cornerstone in related studies and research. In order to become a healthy and active society, it is necessary to recognize, understand and respect the diversity and dynamics of the members of society. The results of this study are expected to be of a little help in understanding and respecting the differences not the superiority between male and female.
{"title":"A Study on the Differences of Interests in University Students by Sex","authors":"Dal-Hyo Kim","doi":"10.13000/jfmse.2021.10.33.5.1263","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1263","url":null,"abstract":"Since human society is composed of male and female, it is necessary to find out whether there is a difference in the interests of male and female in order to create a social community of understanding and respect This study analyzed the differences between male and female in 10 different areas of interest by surveying 193 university students. The main results of this study are as follows. First, the 10 areas of interest of male and female college students through FGI were politics, economy, sports, games, society, culture, entertainment, love, shopping, and travel. Second, in the fields of politics, economy, sports, games, and love, male students were more interested than female students. On the other hand, in the fields of entertainment, shopping, and travel, female students were more interested than male students. In the social and cultural fields, there were no statistical difference in the interests between male and female. Finally, the results of this study are expected to be a little help in understanding and respecting the differences interestingly, not the superiority between male and female. And I hope that it will be a small cornerstone in related studies and research. In order to become a healthy and active society, it is necessary to recognize, understand and respect the diversity and dynamics of the members of society. The results of this study are expected to be of a little help in understanding and respecting the differences not the superiority between male and female.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133979523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1230
Nam-Lee Kim, Jin-Yi Paek
This study was aimed to analyze the economic feasibility of seaweed aquaculture production performance in Busan and Ulsan on the southeast coast of Korea. For the analysis, 10 seaweed aquaculture farms were surveyed. The 10 seaweed farms were classified as kelp farm, sea mustard farm, and mixed farm (kelp+sea mustard). In the study, various analyses including cost structure analysis, profitability and economic feasibility analysis were conducted for the 10 seaweed aquaculture farms. Based on the survey results, the study carried out profitability and economic analyses of seaweed farming for the kelp farm, sea mustard farm, and mixed farm. It was found that the average NPV was the highest for the sea mustard farm with 3.27 billion won. The kelp farm produced the lowest NPV of 0.18 billion won indicating a negative – economic feasibility.
{"title":"An Economic Analysis of Kelp (Saccharina japonica) and Sea mustard (Undaria pinnatifida) Aquaculture in Busan and Ulsan","authors":"Nam-Lee Kim, Jin-Yi Paek","doi":"10.13000/jfmse.2021.10.33.5.1230","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1230","url":null,"abstract":"This study was aimed to analyze the economic feasibility of seaweed aquaculture production performance in Busan and Ulsan on the southeast coast of Korea. For the analysis, 10 seaweed aquaculture farms were surveyed. The 10 seaweed farms were classified as kelp farm, sea mustard farm, and mixed farm (kelp+sea mustard). In the study, various analyses including cost structure analysis, profitability and economic feasibility analysis were conducted for the 10 seaweed aquaculture farms. Based on the survey results, the study carried out profitability and economic analyses of seaweed farming for the kelp farm, sea mustard farm, and mixed farm. It was found that the average NPV was the highest for the sea mustard farm with 3.27 billion won. The kelp farm produced the lowest NPV of 0.18 billion won indicating a negative – economic feasibility.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124577886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1127
Hwang-Kyu Yang
The purpose of this study was to analyze for process of capstone design class based on ISO in engineering. Based on results from literature review, this study clarifies a theoretical ground for ‘process of capstone design class based on ISO’. Initial items to measure this concept were verified by content analysis and then finalized. After a pilot test done with 887 college students, gathered data were analyzed by item selection and exploratory factor analysis to verify their validity. Next, the main test implemented with 1,228 college students was analyzed with exploratory factor analysis using the method for rotation based on maximum likelihood analysis and direct oblimin for validating the final items to measure ‘process of capstone design class based on ISO’. As a result, the scale for ‘process of capstone design class based on ISO’ consists of 40 items to measure the following four factors: reflective observation, reflective abstract, active experiment and experiential awareness. Criterion-related validity were performed at last to check this scale’s theoretical construct. In conclusion, this study concluded that the constructs for process of capstone design class based on ISO could be generalized and applicable to other samples.
{"title":"A Study on the Process of ISO-Based Capstone Design Class in the Engineering Field","authors":"Hwang-Kyu Yang","doi":"10.13000/jfmse.2021.10.33.5.1127","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1127","url":null,"abstract":"The purpose of this study was to analyze for process of capstone design class based on ISO in engineering. Based on results from literature review, this study clarifies a theoretical ground for ‘process of capstone design class based on ISO’. Initial items to measure this concept were verified by content analysis and then finalized. After a pilot test done with 887 college students, gathered data were analyzed by item selection and exploratory factor analysis to verify their validity. Next, the main test implemented with 1,228 college students was analyzed with exploratory factor analysis using the method for rotation based on maximum likelihood analysis and direct oblimin for validating the final items to measure ‘process of capstone design class based on ISO’. As a result, the scale for ‘process of capstone design class based on ISO’ consists of 40 items to measure the following four factors: reflective observation, reflective abstract, active experiment and experiential awareness. Criterion-related validity were performed at last to check this scale’s theoretical construct. In conclusion, this study concluded that the constructs for process of capstone design class based on ISO could be generalized and applicable to other samples.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115858194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1185
Kyoung-Hwa Song, Young-sik Ahn
The purpose of this study is to analyze the influence of university lifelong education manager in terms of emotional intelligence and organizational effectiveness. For this purpose, literature review was conducted, and validity and reliability were verified. The results of study showed that the level of components of emotional intelligence and emotional intelligence of university lifelong education manager was relatively high. The level of organizational effectiveness of university lifelong education manager was confirmed to be normal level, organizational commitment and job satisfaction among the components of organizational effectiveness were confirmed to be high level, and turnover intention was confirmed to be low level. It was found that self emotional understanding and emotional regulation have an effect on organizational effectiveness. The results of this study will be able to suggest the importance of emotional intelligence and organizational effectiveness as a way to increase job satisfaction and organizational commitment of university lifelong education manager and to reduce turnover intention. Based on these results, conclusion and recommendation were suggested.
{"title":"Relationship between Emotional Intelligence and Organizational Effectiveness of University Lifelong Education Manager","authors":"Kyoung-Hwa Song, Young-sik Ahn","doi":"10.13000/jfmse.2021.10.33.5.1185","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1185","url":null,"abstract":"The purpose of this study is to analyze the influence of university lifelong education manager in terms of emotional intelligence and organizational effectiveness. For this purpose, literature review was conducted, and validity and reliability were verified. The results of study showed that the level of components of emotional intelligence and emotional intelligence of university lifelong education manager was relatively high. The level of organizational effectiveness of university lifelong education manager was confirmed to be normal level, organizational commitment and job satisfaction among the components of organizational effectiveness were confirmed to be high level, and turnover intention was confirmed to be low level. It was found that self emotional understanding and emotional regulation have an effect on organizational effectiveness. The results of this study will be able to suggest the importance of emotional intelligence and organizational effectiveness as a way to increase job satisfaction and organizational commitment of university lifelong education manager and to reduce turnover intention. Based on these results, conclusion and recommendation were suggested.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124832641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1284
Dong Joo Lee, Hanna Kim, Suk-Mo Lee
Emergy map of renewable energy sources in Korea was made by utilizing the spatial data from the latest satellite-based model to evaluate the emergy of individual energy sources and total renewable empower (emergy per time). Until now, emergy evaluations of nations were limited national total due to its aggregated source data from unevenly distributed weather stations. The sattellite-based spatial data not only improves the accuracy of the measurement but also gives new insight to compare the abundancy of renewable energy spatially. The results showed that the renewable energy with the highest emergy density and quantity was tidal emergy, followed by runoff emergy for density and rain emergy for quantity. These results will contribute to policy development that enables sustainable use of renewable energy sources.
{"title":"Emergy Mapping of Renewable Energy Sources in Korea","authors":"Dong Joo Lee, Hanna Kim, Suk-Mo Lee","doi":"10.13000/jfmse.2021.10.33.5.1284","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1284","url":null,"abstract":"Emergy map of renewable energy sources in Korea was made by utilizing the spatial data from the latest satellite-based model to evaluate the emergy of individual energy sources and total renewable empower (emergy per time). Until now, emergy evaluations of nations were limited national total due to its aggregated source data from unevenly distributed weather stations. The sattellite-based spatial data not only improves the accuracy of the measurement but also gives new insight to compare the abundancy of renewable energy spatially. The results showed that the renewable energy with the highest emergy density and quantity was tidal emergy, followed by runoff emergy for density and rain emergy for quantity. These results will contribute to policy development that enables sustainable use of renewable energy sources.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128332350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1027
Dong-Hoon Lee
Aquaponics is a cultivation system that combines aquaculture and agricultural hydroponics. This study investigated the productivity of leafy vegetables cultivated in the hybrid biofloc technology-aquaponics (HBFT-AP) and hydroponics (HP). Yellow koi fish (Cyprinus carpio) were fed an EP diet containing 3% MKP (monobasic potassium phosphate, KH2PO4) for 10 weeks in the HBFT-AP. Leafy vegetables of 2 cultivar (ovired lettuce, volare lettuce) were employed in the experiment and water quality [dissolved oxygen (DO, mg/L), pH, water temperature ( ), electrical conductivity (EC; s/cm), turbidity (NTU), °C μ TAN (NH3 + NH4 ) (mg/L), NO2-N (mg/L), NO3-N (mg/L) and PO4-P (mg/L)] was measured 6 times a week. Leafy vegetables in HBFT-AP using yellow koi fish fed the EP with MKP 3.0% had a productivity somewhat higher (2 kinds of cultivar) compared to those in HP, and the pH in the HBFT-AP was maintained at the range around 6.0 for 7-10 week. During the 10-week feeding trial, concentration of NO2-N was kept low in variability while total TAN, NO3-N and PO4-P levels increased with time in HBFT-AP. Higher values in hematocrit (PCV, %), hemoglobin (Hb, g/dL) and inorganic phosphorus (mg/dL) were found (P<0.05) in fish at the end of the experiment compared to the fish at the beginning of the experiment (initial fish: 27.45%, 12.19 g/dL and 6.39 mg/dL; final fish: 36.26%, 14.52 g/dL and 11.21 mg/dL).
{"title":"Comparative study on Growth of Leafy Vegetables Grown in a Hybrid BFT-Aquaponics using Yellow Koi Fish, Cyprinus carpio and Hydroponics","authors":"Dong-Hoon Lee","doi":"10.13000/jfmse.2021.10.33.5.1027","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1027","url":null,"abstract":"Aquaponics is a cultivation system that combines aquaculture and agricultural hydroponics. This study investigated the productivity of leafy vegetables cultivated in the hybrid biofloc technology-aquaponics (HBFT-AP) and hydroponics (HP). Yellow koi fish (Cyprinus carpio) were fed an EP diet containing 3% MKP (monobasic potassium phosphate, KH2PO4) for 10 weeks in the HBFT-AP. Leafy vegetables of 2 cultivar (ovired lettuce, volare lettuce) were employed in the experiment and water quality [dissolved oxygen (DO, mg/L), pH, water temperature ( ), electrical conductivity (EC; s/cm), turbidity (NTU), °C μ TAN (NH3 + NH4 ) (mg/L), NO2-N (mg/L), NO3-N (mg/L) and PO4-P (mg/L)] was measured 6 times a week. Leafy vegetables in HBFT-AP using yellow koi fish fed the EP with MKP 3.0% had a productivity somewhat higher (2 kinds of cultivar) compared to those in HP, and the pH in the HBFT-AP was maintained at the range around 6.0 for 7-10 week. During the 10-week feeding trial, concentration of NO2-N was kept low in variability while total TAN, NO3-N and PO4-P levels increased with time in HBFT-AP. Higher values in hematocrit (PCV, %), hemoglobin (Hb, g/dL) and inorganic phosphorus (mg/dL) were found (P<0.05) in fish at the end of the experiment compared to the fish at the beginning of the experiment (initial fish: 27.45%, 12.19 g/dL and 6.39 mg/dL; final fish: 36.26%, 14.52 g/dL and 11.21 mg/dL).","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"290 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123108309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1140
Beodeul Kang
The first educational institution of fishery science in Korea was the Simplified Fishery School established in 1910, where the subjects of the education were mostly for fishery technologies. In 1941 the Busan Fisheries High School has been established as a higher fisheries educational institution, and the formal fisheries education was initiated for the first time for teaching major subjects of fishery science. As secondary educational institutions, fisheries high schools were established to teach elementary level of fishery science starting in 1950s, however, those institutions have been partially replaced by higher edutional institutions since 1960s. Off-school fisheries educational institutions were also established since 1965, for example, the Korea Fishing Technology Training Center has trained fishermen and general public for basic fisheries education. Recently, the United Nations has made efforts to maintain sustainable marine food resources, such as setting the Sustainable Development Goal(SDG) 14, which is a new paradigm for the conservation of marine ecosystems and the sustainable use of fisheries resources. However, the effort to comply to this new paradigm is not sufficient in Korea. In this study future direction to the education of fishery science was suggested to comply with the new global paradigm. First, the education goal should be adjusted to the new paradigm of the ecosystem-based fisheries approach to management, considering not only fishery in itself, but also it’s environment of the ecosystem. Second, the multi-disciplinary integrated education is necessary to acquire advanced widened knowledge of the ecosystem-based fisheries approach. Third, the contents of education such as curriculums for the new education scope, should be developed using Knowledge-Information Matrix approach. Finally, the advanced fishery science education system should be established based upon the new global paradigm, recognizing three suggestions above.
{"title":"A Study on the History and Future Direction of Fishery Science in Korea","authors":"Beodeul Kang","doi":"10.13000/jfmse.2021.10.33.5.1140","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1140","url":null,"abstract":"The first educational institution of fishery science in Korea was the Simplified Fishery School established in 1910, where the subjects of the education were mostly for fishery technologies. In 1941 the Busan Fisheries High School has been established as a higher fisheries educational institution, and the formal fisheries education was initiated for the first time for teaching major subjects of fishery science. As secondary educational institutions, fisheries high schools were established to teach elementary level of fishery science starting in 1950s, however, those institutions have been partially replaced by higher edutional institutions since 1960s. Off-school fisheries educational institutions were also established since 1965, for example, the Korea Fishing Technology Training Center has trained fishermen and general public for basic fisheries education. Recently, the United Nations has made efforts to maintain sustainable marine food resources, such as setting the Sustainable Development Goal(SDG) 14, which is a new paradigm for the conservation of marine ecosystems and the sustainable use of fisheries resources. However, the effort to comply to this new paradigm is not sufficient in Korea. In this study future direction to the education of fishery science was suggested to comply with the new global paradigm. First, the education goal should be adjusted to the new paradigm of the ecosystem-based fisheries approach to management, considering not only fishery in itself, but also it’s environment of the ecosystem. Second, the multi-disciplinary integrated education is necessary to acquire advanced widened knowledge of the ecosystem-based fisheries approach. Third, the contents of education such as curriculums for the new education scope, should be developed using Knowledge-Information Matrix approach. Finally, the advanced fishery science education system should be established based upon the new global paradigm, recognizing three suggestions above.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128964101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1272
Jae-Beum Hong, Do-Hoon Kim
This study attempted to assess the stock status of chub mackerel(Scomber japonicus), which is one of commercially important fish species in South Korea. Recent studies on stock assessment of chub mackerel have been done, but they have several limitations such as setting up prior information and distributions for major variables. In this study, stock assessment models, Monte Carlo method (CMSY) and Bayesian state-space (BSS) method, that can be analyzed even in limited data and based on prior information and distributions with relatively clear evidence were used. To evaluate the stock status of chub mackerel, annual changes in the amount of biomass and the ratio of the amount of biomass in the last year to BMSY (the biomass which can produce maximum sustainable yield) were estimated. Results showed that the status of chub mackerel was assessed to be 'Grossly overfished' by CMSY model and 'Overfished' by BSS model, respectively. That is, the biomass of chub mackerel is decreasing and the current level of biomass is much lower than that of BMSY.
{"title":"A Study on Stock Assessment of Chub Mackerel(Scomber japonicus) in South Korea Using CMSY and BSS Models","authors":"Jae-Beum Hong, Do-Hoon Kim","doi":"10.13000/jfmse.2021.10.33.5.1272","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1272","url":null,"abstract":"This study attempted to assess the stock status of chub mackerel(Scomber japonicus), which is one of commercially important fish species in South Korea. Recent studies on stock assessment of chub mackerel have been done, but they have several limitations such as setting up prior information and distributions for major variables. In this study, stock assessment models, Monte Carlo method (CMSY) and Bayesian state-space (BSS) method, that can be analyzed even in limited data and based on prior information and distributions with relatively clear evidence were used. To evaluate the stock status of chub mackerel, annual changes in the amount of biomass and the ratio of the amount of biomass in the last year to BMSY (the biomass which can produce maximum sustainable yield) were estimated. Results showed that the status of chub mackerel was assessed to be 'Grossly overfished' by CMSY model and 'Overfished' by BSS model, respectively. That is, the biomass of chub mackerel is decreasing and the current level of biomass is much lower than that of BMSY.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126443552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.13000/jfmse.2021.10.33.5.1172
Taek-Sung Kwon, Yong-Gwon Kim
This study compared and analyzed the types and roles of illustrations, and the s in the questions in the experimental observation textbooks for 3rd, 4th, 5th, and 6th graders of the 2009 and 2015 revised curriculum. This study provide basic data that can effectively utilize the textbooks of the 2015 revised curriculum by presenting the changes, trends of the textbooks according to the revision of the curriculum and suggestions to help develop the experimental observation textbooks of the revised curriculum in the future. The results of comparing and analyzing experimental observation textbooks for 3rd, 4th, 5th, and 6th graders of the 2009 revised curriculum and 2015 revised curriculum are as follows. First, the proportion of photographs in the types of illustrations is the highest at 63.6% in the 2009 revised curriculum and 58.5% in the 2015 revised curriculum, which is to give students a more realistic scientific experience through high objectivity and clarity. Second, the proportion of learning theorem in the roles of illustrations is the highest at 40.9% in the 2009 revised curriculum and 67.8% in the 2015 revised curriculum because experimental observation textbooks have the quality of auxiliary textbooks. Third, In terms of the science process skills in the questions, the proportion of the basic science process skills is the highest at 74.2% in the 2009 revised curriculum and 79.5% in the 2015 revised curriculum. Among the individual items of the science process skills, the proportion of observations is the highest at 32.2% in the 2009 revised curriculum and 34.4% in the 2015 revised curriculum.
{"title":"The Comparative Analysis of Illustrations and Questions of Elementary School Experimental Observation Textbooks -Focused on 2009 and 2015 Revised Curriculum","authors":"Taek-Sung Kwon, Yong-Gwon Kim","doi":"10.13000/jfmse.2021.10.33.5.1172","DOIUrl":"https://doi.org/10.13000/jfmse.2021.10.33.5.1172","url":null,"abstract":"This study compared and analyzed the types and roles of illustrations, and the s in the questions in the experimental observation textbooks for 3rd, 4th, 5th, and 6th graders of the 2009 and 2015 revised curriculum. This study provide basic data that can effectively utilize the textbooks of the 2015 revised curriculum by presenting the changes, trends of the textbooks according to the revision of the curriculum and suggestions to help develop the experimental observation textbooks of the revised curriculum in the future. The results of comparing and analyzing experimental observation textbooks for 3rd, 4th, 5th, and 6th graders of the 2009 revised curriculum and 2015 revised curriculum are as follows. First, the proportion of photographs in the types of illustrations is the highest at 63.6% in the 2009 revised curriculum and 58.5% in the 2015 revised curriculum, which is to give students a more realistic scientific experience through high objectivity and clarity. Second, the proportion of learning theorem in the roles of illustrations is the highest at 40.9% in the 2009 revised curriculum and 67.8% in the 2015 revised curriculum because experimental observation textbooks have the quality of auxiliary textbooks. Third, In terms of the science process skills in the questions, the proportion of the basic science process skills is the highest at 74.2% in the 2009 revised curriculum and 79.5% in the 2015 revised curriculum. Among the individual items of the science process skills, the proportion of observations is the highest at 32.2% in the 2009 revised curriculum and 34.4% in the 2015 revised curriculum.","PeriodicalId":148968,"journal":{"name":"JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132843211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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