Multiscale habitat associations of deepwater demersal fishes off central California

Anderson, Tara J. and Yoklavich, Mary M. (2007) Multiscale habitat associations of deepwater demersal fishes off central California. Fishery Bulletin, 105(2), pp. 168-179.

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Abstract

Fish-habitat associations were examined at three spatial scales in Monterey Bay, California, to determine how benthic habitats and landscape configuration have structured deepwater demersal fish assemblages. Fish counts and habitat variables were quantified by using observer and video data collected from a submersible. Fish responded to benthic habitats at scales ranging from cm’s to km’s. At broad-scales (km’s), habitat strata classified from acoustic maps were a strong predictor of fish assemblage composition. At intermediate-scales (m’s−100 m’s), fish species were associated with specific substratum patch types. At fine-scales (<1 m), microhabitat associations revealed differing degrees of microhabitat specificity, and for some species revealed niche separation within patches. The use of habitat characteristics in ecosystembased management, particularly as a surrogate for species distributions, will depend on resolving fish-habitat associations and habitat complexity over multiple scales.

Item Type: Article
Title: Multiscale habitat associations of deepwater demersal fishes off central California
Personal Creator/Author:
CreatorsEmail
Anderson, Tara J.
Yoklavich, Mary M.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 105
Number: 2
Page Range: pp. 168-179
Date: 2007
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8889
Depositing User: Patti M. Marraro
Date Deposited: 18 Jun 2012 09:33
Last Modified: 18 Jun 2012 09:33
URI: http://aquaticcommons.org/id/eprint/8889

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