• The Journal of Fisheries Business Administration
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• v.53 no.2
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• pp.58-72
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• 2022

Fishery products play an important role in Korean food culture, and awareness of the safety of fishery products is increasing in the seafood market. Against this backdrop, Japan has announced a plan to release radioactive water to the sea from 2023. In the case of Korea, it is adjacent to the area to be discharged, so there are concerns about securing the safety of marine products. Therefore, it is necessary to analyze the change in perception and impact of marine product consumers due to the discharge of contaminated water and to study appropriate countermeasures when discharging contaminated water from nuclear power plants. In this study, the current status of radioactive contaminated water discharge in Japan was summarized, and a survey was conducted on the change in the consumption perception of marine products according to the discharge of contaminated water to analyze the factors affecting the consumption change of domestic consumers. According to the survey, 85.3% of the respondents said that it will affect the purchase of domestic marine products if Japan starts discharging contaminated water from nuclear power plants. Moreover, 85.5% of the respondents said it will affect the purchase of imported marine products.

• Bulletin of the Korean Chemical Society
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• v.34 no.2
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• pp.633-636
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• 2013

• Journal of Marine Bioscience and Biotechnology
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• v.3 no.1
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• pp.31-37
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• 2008

Off the 1,572 km long coastline of Namibia lies known as the Benguela upwelling system, a very rich source of marine life supporting traditional and modern forms of fishery. Commercial fishing and fish processing is one of the fastest-growing sectors of the Namibian economy in terms of employment, export earnings, and contribution to GDP. The fishing industry has grown to the extent that it is currently Namibia's second biggest export earner of foreign currency after mining (90% of national output is marketed for export). In 2005, Namibia harvested about 552,164 tonnes of fish. The final value of processed products (export value) that year was around US$ 376.0 million. Besides the marine captured fisheries, Namibia also has a small but vibrant aquaculture sector. Inland captured fisheries exist in the north-east and north-west of Namibia where as commercial freshwater aquaculture of tilapia and catfish is also undertaken. The inland fisheries are mainly subsistence based and typically labour intensive, with low catch per unit effort. However the subsistence fisheries from these regions play a significant role in the lives of rural community. The domestic market for marine fish products is extremely limited due to the small size of the population (2 million). The fishing industry is a source of considerable employment for many Namibians. Huge potential to increase production exists in Namibia, unpolluted high quality marine waters, high natural primary productivity of the seawater, availability of inexpensive fish by-products from established fish processing sector for inclusion in wet aqua-feeds and well-established processing, packaging and marketing systems due to the marine capture fisheries that can be adopted for aquaculture purpose.

• Journal of Food Hygiene and Safety
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• v.30 no.4
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• pp.366-371
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• 2015

This work was conducted to apply the multi class pesticide multiresidue method for determining the use of hexaconazole in the agricultural products using GC-NPD. The multi class pesticide multiresidue method results were validated for the assay of hexaconazole by using linearity, accuracy, precision, limit of detection and quantitation. The linearity in the concentration ranged from 0.025 to 5.0 mg/L ($R^2$ > 0.999). Lettuce recoveries ranged from 89.42% to 94.15% with relative standard deviations below 7.78%, for spiking levels from 0.04 to 4.0 mg/kg. The limit of detection was 0.04 mg/kg, and the limit of quantitation was 0.11 mg/kg. The intra- and inter-day precisions were 2.42~3.49% and 4.90~7.78%, respectively. We suggested that the multi class pesticide multiresidue method for determining hexaconazole was highly accurate and reproducible, and it will be used as a routine analysis in agricultural products.

• Korean Journal of Crystallography
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• v.16 no.2
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• pp.66-74
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• 2005

Marine natural products with various bioactivities are featured with similar structure to the common secondary metabolites and generally modified by halogenides, such as chloride, bromide, and iodide ions. Vanadium haloperoxidase is a key enzyme for the production of marine natural products and a metalloenzyme which requires a cofactor of vanadate. This review will cover isolation of vanadium haloperoxidase and the protein structures, as well as reaction mechanism of the metalloenzyme. Finally, reactivity of vanadium haloperoxidase and the biosynthesis of the secondary metabolites of indole, terpenoids, and acetogenins will be described.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.22
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• pp.227-254
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• 2004

This paper focuses on the analysis of effects on fisheries sector following Korea-Japan Free Trade Agreement and the results are found as follows. In terms of national competitiveness, the RCA(Revealed comparative advantage) index shows that Korea is higher than Japan in most species items. And the calculation of TSI(Trade Specialization Index) finds that Korea is export specialized while Japan import specialized, showing that Korean fisheries sector is internationally more competitive than Japan. The tariffs on the marine products should be completely scrapped between Korea and Japan, export of marine products to Japan increases a mere 2%, while import from Japan 13.5%. In terms of value, annual export to Japan stands at 20,135thousand USD, while import from Japan at 12,137thousands USD, resulting in trade balance improvement of 8,000thousand USD in total. The tariff measures above is expected to have a positive effect on the related industry of marine products such as Oyster, Conger eel, Ark shells and Laver, but those involved in fisheries of Alaska pollack, Hair tail, Sea-bream(live fish), Red horsehead(frozen), Saury are expected to be negatively affected. Given the results of analysis above, the effects of FTA on the fisheries would be advantageous to Korea as a whole, but at the same time, the advantage and disadvantage sustained differs by fishery type and marine products. To that effect, negotiation strategies and countermeasures should be made, taking the results into account.

• Korean Journal of Food Science and Technology
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• v.45 no.3
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• pp.382-384
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• 2013

We evaluated the presence of uniconazole residual pesticide in agricultural products by using multiclass pesticide multiresidue methods. Samples were collected from January to August, 2012. The pesticide was detected in 14 samples among the 3,632 samples tested. Amount of the uniconazole pesticide ranged from 0.098 to 2.2 mg/kg in the 14 samples. This method was described for the simultaneous determination of uniconazole by using gas chromatography with an electron capture detector (GC-ECD) and mass spectrometry (MS). For evaluating the GC-ECD method, uniconazole was spiked into gyeojachae at a level of 0.05, 0.5 mg/kg. The recoveries of uniconazole with the GC-ECD method ranged from 98.9-109.4%. The results indicate that our method of simultaneous analysis is applicable to uniconazole analysis.

• Journal of Environmental Health Sciences
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• v.10 no.2
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• pp.53-59
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• 1984

V. parahaemolyticus is a species of gram- negative asperogenous rod which gives rise to gastroenteritis in man and widely distributed in Korea. In this study, the distribution of V. parahaemolyticus among sea water and various marine products in Inchcon during the period of July 1984 to August 1984 was studied. The following results were obtained: 1. V. parahacmolyticus were isolated from 16(15.4%) of 104 specimens of sea water and various marine products. 8 strains(11.0%) were from fish and marine products 3 (25.0%) from aquarium watar, 3 from chopping board 1 from sea water and 1 from sea water in basin. 2. Among the 14 strains tested, 10 were Kanagawa phenomenon positive and 4 were negative. 3. 16 strains were tested for K antigens and 3 were found to be $K_{17}$, 1 each of $K_{22}, K_{25}, K_{34}$ and $K_{57}$. 7 strains were not agglutinated with any K-type multiserum.

• 한국생물공학회:학술대회논문집
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• 2003.10a
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• pp.67-67
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• 2003

• Bulletin of the Korean Chemical Society
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• v.23 no.1
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• pp.163-166
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• 2002