@article{oai:ir.kagoshima-u.ac.jp:00005126,
 author = {HIRATA, Hachiro and MAKITA, Takafumi and IKEDA, Fumiatsu and HIGASHIKAWA, Seiji and NISHI, Toru and ARIMA, Sumihiro and MASUMITSU, Sunao and HORIWAKI, Akio},
 issue = {1},
 journal = {南総研紀要},
 month = {2016-10-28},
 note = {The present survey was conducted to find out the distribution ratio of useable/trash fish caught by long-line fishing. The purpose of the survey was to obtain fundamental data for examining the homeostatic ecosystem in the ocean, as an application of
microcosmology.
The long-line fishing was repeated 8 times in June 1980 in the East Indian Ocean
by the Kagoshima Maru (1038t) of Kagoshima University. The operations were
carried out by 7042 hooks, consisting of 3200 hooks with synthetic squids and 3842
hooks with frozen saury.
The total number of fish caught was 166 individuals. Therefore, the fishing rate
was calculated to be 2.4%. Tuna and horse mackerel were classified into the "useable
fish", and shark and similar fish were shorted into the "trash fish". The distributions of useable and trash fish were estimated to be : 66.1 to 33.9% in body weight, and 54.8 to 45.2% in fish number, respectively.},
 pages = {57--63},
 title = {Distribution Ratio of Useable/Trash Fish Caught by Long-Line Fishing},
 volume = {1},
 year = {}
}