Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 25 Issue 4
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- Pages.241-250
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- 1992
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
Estimation and Methods Estimating Daily Food Consumption of Agrammus agrammus
노래미, Agrammus agrammus의 일간섭식량 추정법과 추정
- KIM Chong-Kwan (Biological Oceanography Laboratory, KORDI) ;
- KANG Yong-Joo (Department of Marine Biology, National Fisheries University of Pusan)
- Published : 1992.07.01
Abstract
This study was covered the amount of food consumed per day as well as methods estimating the daily food consumption per fish of Agrammus agrammus in natural population to understand flow of food organisms among trophic levels in bio-community of the coastal waters, Shinsudo, Samchonpo. The estimating formulas were induced from the mathematical models that representing the diurnal fluctuation of the stomach fullness of the fish. The daily food consumption could be estimated by both feeding rates and gastric evacuation rates, but it was more reasonable method that based on gastric evacuation rates than feeding rates. The daily food consumption in wet weight per fish by gastric evacuation rates were 1.9856g/day, 3.4725g/day, 4.4418g/day, 5.8168g/day, and 7.2113g/day in the order of age groups from 0 to 4. The daily rations as percentage of body weight were
본 연구는 치안생물군집에서 영양단계간 물질의 유동량을 파악하기 위하여 경상남도 삼천포시 신수도 연안에 서식하는 노래미의 일간섭식량을 추정하는 방법과 섭식량을 추정한 것이다. 추정식은 위만복도의 일주변화를 나타내는 수리모델로부터 유도하였다. 일간섭식량은 어류의 섭식률 또는 위배출률에 의해서 구할 수 있었으나 섭식률보다는 위배출률을 사용하여 추정하는 것이 더욱 이상적이었다. 위배출률에 의한 어체 1미당 일간섭식량을 연령군별로 보면, 0세군은 1.9856g/day였고, 1세군과 2세군은 각각 3.4725g/day와 4.4418g/day였으며, 3세군과 4세군은 각각 5.8168g/day와 7.2113g/day였다. 이 일간섭식량을 어체중량에 대한 백분율로서 나타내면, 0세군은
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