Movement behaviour of largemouth bass Micropterus salmoides in a South African impoundment

被引：2

作者：

Howell, Dylan H. ^{[1
]}

Cowley, Paul D. ^{[1
,2
]}

Childs, Amber-Robyn ^{[1
]}

Weyl, Olaf L. F. ^{[1
,2
,3
]}

机构：

[1] Rhodes Univ, Dept Ichthyol & Fisheries Sci, ZA-6140 Grahamstown, South Africa

[2] South African Inst Aquat Biodivers, Grahamstown, South Africa

[3] South African Inst Aquat Biodivers, Ctr Invas Biol, Grahamstown, South Africa

来源：

AFRICAN ZOOLOGY | 2015年 / 50卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

acoustic telemetry; alien invasive; ecology; flow; temperature; HABITAT USE; ACTIVITY PATTERNS; RESERVOIR; RIVER; FISH; BIOTELEMETRY; TELEMETRY; SCALES;

D O I：

10.1080/15627020.2015.1040837

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The objectives of this study were to describe movements and area use patterns of largemouth bass Micropterus salmoides in relation to abiotic factors (water temperature, river inflow and water level). The study was conducted in the Kubusi arm of Wriggleswade Dam, Eastern Cape, South Africa where nine largemouth bass (310-385 mm FL) were surgically implanted with individually coded acoustic transmitters and monitored for nine months (May 2010 to January 2011) using an array of five moored acoustic data-logging receivers. The daily position occupied by largemouth bass was significantly affected by water temperature (P < 0.001) and river inflow (P < 0.001), whereas water level had no effect. Largemouth bass spent little or no time in the shallow river inlet areas when water temperature was <12.5 degrees C, but as water temperature increased, their utilisation of shallow areas increased significantly. The results from this study demonstrate the importance of environmental factors, particularly water temperature, on the movement of largemouth bass.

引用

页码：219 / 225

页数：7

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