HYDROACOUSTIC DETECTION OF FOOD WASTE - A METHOD TO ESTIMATE MAXIMUM FOOD-INTAKE OF FISH POPULATIONS IN SEA CAGES

被引：40

作者：

JUELL, JE

机构：

[1] Institute of Fishery Technology Research, N-5024 Bergen

来源：

AQUACULTURAL ENGINEERING | 1991年 / 10卷 / 03期

关键词：

D O I：

10.1016/0144-8609(91)90024-E

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A linear relationship between echo energy and amount of salmon dry food was established. Measurements were carried out both for food batches (5-400 g) and single pellets. For a certain amount of food, the echo energy decreased with increased pellet size. The relationships allowed hydroacoustic detection of small amounts of food waste. Maximum food intake of a salmon population was determined as the amount of food delivered by the feeder before food waste was detected.

引用

页码：207 / 217

页数：11

共 8 条

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[2]

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