Changes in gill raker morphology for three age classes of kokanee

Authors
Lipsey, TSB Stockwell, JD
Citation
Tsb. Lipsey et Jd. Stockwell, Changes in gill raker morphology for three age classes of kokanee, J FRESHW EC, 16(1), 2001, pp. 67-72
Citations number
25
Categorie Soggetti
Aquatic Sciences
Journal title
JOURNAL OF FRESHWATER ECOLOGY
ISSN journal
02705060 → ACNP
Volume
16
Issue
1
Year of publication
2001
Pages
67 - 72
Database
ISI
SICI code
0270-5060(200103)16:1<67:CIGRMF>2.0.ZU;2-1
Abstract
We used gill raker measurements of kokanee salmon and zooplankton body dime nsions to assess how gill raker structure and prey retention probabilities change with fish age. Cumulative proportion of filtering area between gill rakers and retention probabilities for smaller zooplankton decreased with i ncreasing age of kokanee. Assuming strict filter feeding, only the largest of zooplankters would be retained by age-3 kokanee.