Prespawning, Spawning, and Postspawning Behavior of Striped Bass in the Miramichi River

Autor: Joseph Sheasgreen, Scott G. Douglas, Gérald Chaput, John Hayward
Rok vydání: 2009
Předmět:
Zdroj: Transactions of the American Fisheries Society. 138:121-134
ISSN: 1548-8659
0002-8487
Popis: Acoustic telemetry was used to describe the behavior of individual striped bass Morone saxatilis and their use of the Miramichi River estuary during two consecutive spawning seasons in 2004 and 2005. In both years, prespawning striped bass staged in the lower and middle sections of the Miramichi River estuary downstream from the spawning area. Males and females moved in synchrony from the staging area to the spawning grounds in the Northwest Miramichi River. The dates of arrival at the spawning grounds were similar between sexes in both years, but significantly later (by about a week) in 2005. There were no significant differences in average daily water temperature on the dates of arrival at the spawning grounds for male and female striped bass, but water temperatures on the arrival dates were significantly cooler in 2005. Increases in temperature rather than the absolute temperature was the apparent cue initiating the movements of striped bass onto the spawning grounds. Females occupied the spaw...
Databáze: OpenAIRE
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