Marine mammal biological laboratory (11 Ergebnisse)

Paperback. Zustand: Very Good.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Zustand: New. Print on Demand. This book presents a compendium of research conducted on the Pribilof Islands fur seal population. The author details methods of collecting data on the number of pups born each year, and how many survive to age one. The author also summarizes data on the number of adult males counted, dead fur seals counted, and the primary diagnoses for causes of death among seal pups. Additionally, the results of tagging and marking studies are summarized. These studies provide information on the survival of males to age 2 and estimates of the number of 3 and 4-year-old males. These data are used to forecast the kill of male seals in each age class for the 1970 harvest and demonstrate significant fluctuations in survival rates. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Zustand: New. Print on Demand. This book presents findings from ongoing research on the northern fur seal population on the Pribilof Islands in the Bering Sea. The research is part of an international effort to manage and conserve the species. Data collected since 1956 on fur seal population dynamics, mortality, and survival have contributed to methods for manipulating the seal population to determine the level of maximum sustained yield. The book discusses age classification, number of seals killed by sex, reproductive condition of females, population estimates, and forecasts of the kill of male seals in 1968. The data in this comprehensive report will inform researchers, wildlife managers, and policymakers on how fur seal research has influenced the management of this species. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…