9780282105327 - Statistical Records and Computations on Red Salmon (Oncorhynchus Nerka) Runs in the Nushagak District, Bristol Bay, Alaska, 1946-59 (Classic Reprint) di Mathisen, O... (3 risultati)

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

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

Paperback. Condizione: New. Print on Demand. This book presents a compilation of biological data from red salmon runs in the Nushagak District of Bristol Bay, Alaska, spanning 14 years from 1946 to 1959. The author meticulously collected and analyzed information on catch and escapement, using various sampling methods to ensure accuracy. The data includes statistics on age, sex, length, and seasonal variations, providing a comprehensive understanding of the red salmon population in the region. Additionally, the book explores the relationships between adult escapement and returning runs, as well as the seaward migration of juveniles and the adult population, offering valuable insights into the dynamics of red salmon populations. 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.