Predicting Year-class Strength from the Abundance of Age-0 Rockfish

Predicting Year-class Strength from the Abundance of Age-0 Rockfish

Author: James R. Bence

Publisher:

Published: 1990

Total Pages: 370

ISBN-13:

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"The Groundfish Analysis Investigation of the Tiburon Laboratory conducts an annual survey of age-0 rockfish (Genus Sebastes). A major long-term goal of these surveys is to estimate the strength of a year class based on their abundance at age 0. This requires that a positive relationship between recruitment to the fishery and age-0 abundance be established. In this report we examine the statistical power for establishing such a relationship."--p.ii


Ecology and Conservation of the Marbled Murrelet

Ecology and Conservation of the Marbled Murrelet

Author: C. John Ralph

Publisher: DIANE Publishing

Published: 1997-04

Total Pages: 434

ISBN-13: 9780788141621

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This report was compiled & edited by the interagency Marbled Murrelet Conservation Assessment Core Team. The 37 chapters cover both original studies & literature reviews of many aspects of the species' biology, ecology, & conservation needs. It includes new information on the forest habitat used for nesting, marine distribution, & demographic analyses; & describes past & potential effects of humans on the species habitats. Future research needs & possible management strategies for both marine & forest habitats are suggested. Charts & tables.