OCCURRENCE, RELATIVE ABUNDANCE, AND SIZE OF LANDLOCKED SEA LAMPREY (PETROMYZON-MARINUS) AMMOCOETES IN RELATION TO STREAM CHARACTERISTICS IN THE GREAT-LAKES

被引:33
|
作者
YOUNG, RJ [1 ]
KELSO, JRM [1 ]
WEISE, JG [1 ]
机构
[1] FISHERIES & OCEANS CANADA,SEA LAMPREY CONTROL CTR,SAULT ST MARIE P6A 1P0,ONTARIO,CANADA
关键词
D O I
10.1139/f90-201
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Streams with ammocoetes had significantly higher proportion of sand and a lower proportion of bedrock and clay than streams without ammocoetes. Catch per unit effort of ammocoetes collected with electro-fishing gear was also significantly related to the proportion of rubble, gravel and clay. There was a significant positive relationship between conductivity and temperature with size of 2+ ammocoetes. -from Authors
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页码:1773 / 1778
页数:6
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