thomas s hida joseph e king (4 risultati)

PAPER BACK GREY. Condizione: FAIR. Fishery Bulletin 118 from Fishery Bulletin of the Fish and Wildlife Service Volume 57 grey papercover fading discolored and stained. browning pages.balck and white illustrations/diagrams.General wear and rubbed cover. Tight binding. No bookplate. DATE PUBLISHED: 1957 EDITION: 365-395PP.

Paperback. Condizione: New. Print on Demand. This book explores the abundance of zooplankton in Hawaiian waters and the factors that may influence their populations. The author, a respected fishery research biologist, conducted extensive sampling and analysis to gather data on zooplankton volume and composition. The book examines the influence of environmental factors such as temperature, salinity, and currents on zooplankton populations, and discusses the potential impact of these findings on the local skipjack tuna fishery. The author's research provides valuable insights into the complex interplay between zooplankton and their environment, and contributes to our understanding of the marine ecosystem in this important fishing region. 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. Condizione: New. Print on Demand. This book delves into the vertical distribution of zooplankton in the central equatorial Pacific, presenting data collected during a 1952 expedition. The author utilizes Clarke-Bumpus samplers to gather zooplankton samples at varying depths, providing valuable insights into the abundance and composition of these organisms. This study not only contributes to our understanding of zooplankton distribution patterns but also sheds light on the potential food sources available to deep-swimming yellowfin tuna in the region. Through meticulous analysis, the author explores the diurnal variations in zooplankton abundance and examines the differences between zooplankton communities in the North and South Equatorial Currents. The book's findings offer valuable information for researchers studying marine ecosystems, particularly those interested in the intricate relationships between zooplankton and commercially important fish species like the yellowfin tuna. 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. Condizione: New. Print on Demand. This book investigates the standing crop of zooplankton, essential fish food, in the waters around the Hawaiian Islands during the period of the 1950s through 1952. The author, an oceanographer, takes into account the vertical and diurnal variation in zooplankton abundance and correlates the findings with the hydrographic conditions of the region. They find that the greatest amount of zooplankton occurred at the 50-meter level in both the day and the night collections. The author also finds a highly significant positive correlation between zooplankton abundance and inorganic phosphate concentrations in the water, suggesting that this may be a useful indicator of zooplankton abundance in the area. This book is an important historical record of the zooplankton abundance around the Hawaiian Islands and provides valuable insights into the relationship between hydrographic conditions and zooplankton 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.