EFFECTS OF ROSYSIDE DACE (CLINOSTOMUS-FUNDULOIDES) ON MICROHABITAT USE OF RAINBOW-TROUT (ONCORHYNCHUS-MYKISS)

被引：16

作者：

GROSSMAN, GD

BOULE, V

机构：

来源：

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 1991年 / 48卷 / 07期

关键词：

D O I：

10.1139/f91-149

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

We experimentally examined the effects of competition for space between rainbow trout (Oncorhynchus mykiss) and rosyside dace (Clinostomus funduloides) in an artificial stream. These species generally do not exhibit statistically significant differences in microhabitat use in Coweeta Creek, North Carolina, USA. Two competition (trout and dace) and two control (trout only) trials were conducted during spring and summer. Microhabitat use data indicated that the presence of dace did not produce microhabitat shifts in trout. Most behavioral changes could be attributed to acclimation effects or intraspecific competition. Based on field and laboratory results, it does not appear that interspecific competition with dace strongly affects the use of spatial resources in rainbow trout.

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页码：1235 / 1243

页数：9

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