Comparative Diets of Subyearling Redbreast Sunfish and Subyearling Northern Redbelly Dace in an Adirondack Lake
作者:
JamesH. Johnson,
EmilyZ. Johnson,
期刊:
Journal of Freshwater Ecology
(Taylor Available online 1984)
卷期:
Volume 2,
issue 6
页码: 587-591
ISSN:0270-5060
年代: 1984
DOI:10.1080/02705060.1984.9664641
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The diets of the poorly described early life history stage of redbreast sunfish and northern redbelly dace were examined when the species coexisted in the littoral zone of an Adirondack Lake. The prey of redbreast sunfish fry included cladocerans, copepods and amphi-pods, all associated with a mid-water feeding station. The diet of northern redbelly dace fry was dominated by emergent chironomids and terrestrial insects which suggests surface feeding. Diet overlap was very low since the two species were apparently utilizing different food organisms in separate regions of the water column.
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