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Catches characteristics between fishing area and non-fishing area in the shrimp beam trawl of Geoje waters, Korea (거제연안 새우조망 조업구역과 비 조업구역에서의 어획물 특성)

  • Cho, Sam-Kwang;Kim, Hyun-Young;Park, Chang-Doo;Cha, Bong-Jin
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.49 no.4
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    • pp.377-384
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    • 2013
  • Experimental fishing was carried out to compare and analyze catch characteristics of shrimp beam trawl in a fishing area and a non-fishing area during the period of fishing season and off-fishing season in the coastal waters of Geoje. A commercial fishing boat (4.99 tons) was used for the test fishing. The amount of total catches were 14,654g in the fishing area and 12,359g in the non-fishing area, shrimp catches of non-fishing area were much greater than that of the fishing area during the period of off-fishing season (June and August). However, total catches were 27,670g in the fishing area and 33,004g in the non-fishing area, shrimp catches of fishing area were bigger than that of non-fishing area during the period of fishing season (October and December). On the results of the study, catches characteristics between fishing area and non-fishing area showed the reversed results for the period of fishing season and off-fishing season.

Evaluation of Bacteriological Safety for the Shellfish Growing Waters in Taean Area, Korea (충남 태안 패류생산해역에서의 세균학적 위생안정성 평가)

  • Song, Ki-Cheol;Lee, Doo-Seog;Shim, Kil-Bo;Lim, Chi-Won;Mog, Jong-Su;Byun, Han-Seok;Park, Young-Je;Cho, Ki-Chae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.41 no.3
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    • pp.155-162
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    • 2008
  • The seawater in the Taean area was surveyed to evaluate the conditions of the bay and compliance with the bacteriological criteria for a designated area for shellfish production for export. Samples of seawater were collected monthly at 34 sampling stations established in the survey area from January 2002 to December 2004. The bacterial density in the coastal area close to a pollution source located to the northeast of the survey area was higher than in the open sea to the west. The bacteriological counts in the water did not change with 16.5mm of rainfall, but increased abruptly after 65.4mm of rainfall. The total coliform and fecal coliform most probable numbers (MPNs) of 1,224 seawater samples in the survey area were <1.8-2,400 and <1.8-790 MPN/100 mL, respectively. The geometric mean and estimated 90th percentile of total coliforms were 1.9-3.4 and 2.7-26.3 MPN/100mL, respectively, and for fecal coliforms were <1.8-2.6 and 1.8-12.0 MPN/100mL, respectively. The bacteriological water quality in the Taean seawater area met the National Shellfish Sanitation Program criteria for an approved area and the Korea Shellfish Sanitation Program criteria for a designated area for shellfish production for export.