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http://dx.doi.org/10.5657/kfas.2009.42.3.290

Comparison of Geostatistic and Acoustic Estimates of Anchovy Biomass around the Tongyeong Inshore Area  

Oh, Taeg-Yun (South Sea Fisheries Research Institute, NFRDI)
Kim, Joo-Il (South Sea Fisheries Research Institute, NFRDI)
Seo, Young-Il (South Sea Fisheries Research Institute, NFRDI)
Lee, Sun-Kil (South Sea Fisheries Research Institute, NFRDI)
Hwang, Doo-Jin (School of Marine Technology, Chonnam National University)
Kim, Eun-Ho (South Sea Fisheries Research Institute, NFRDI)
Yoon, Eun-A (School of Marine Technology, Chonnam National University)
Jeong, Sun-Beom (School of Marine Technology, Chonnam National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.42, no.3, 2009 , pp. 290-296 More about this Journal
Abstract
Acoustic technologies are commonly used to estimate biomass and distribution of fisheries resources in coastal areas and the open ocean. The pelagic species of Engraulis japonica, Scomber japonicus and Sardinops melanosticta spawn migrate to the southern part of the Sea of Korea and capture of these three species comprise 50% of the total abundance in Korean waters. Since 1970, anchovy landings have increased to 0.2 million tons in 1990, 0.27 million tons in 2001, and 0.25 million tons in 2003. Acoustic surveys were conducted on 24-26, May and 20-21, June 2005 around the Tongyeong, Geojae, and Namhae anchovy fishing ground using a dual beam echo sounder (DT-5000, 200 kHz Biosonics). Using this approach, information was obtained on the distribution (depth and position) of zooplankton, and adult and juvenile anchovy. We calculated and compared anchovy biomass using simple summation and geostatistic methods to assess the advantages and constraints of the two techniques.
Keywords
Juvenile anchovy; Geostatistic method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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