Bugaev Victor F. Asian Sockeye Salmon (freshwater period of life, biological structure, population dynamics)

Категория: Работы ученых, исследователей Камчатки.

Bugaev, V. Asian Sockeye Salmon : (freshwater period of life, biological structure, population dynamics). — Petropavlovsk-Kamchatsky : publishing house "Kamchatpress", 2011. — 292 p.

In Asia, the sockeye is the most abundant on the Kamchatka Peninsula in some years where ap­proximately 90–95 % of all the Asian sockeye is harvested in the watersheds of the Kamchatka and Ozernaya rivers alone. This study is a summary of long-term observations on the Asian sockeye, and is based on the results of the author's 20 years of research. He examines the biological characteristics of 38 local sockeye populations (from Iturup Is. to Eastern Chukotka). Long-term data was used to analyze the interannual variability in the growth of juvenile sockeye of the Kamchatka and Ozernaya rivers. Questions concerning the structural analysis of the scales in juveniles and spawners of the sockeye are discussed in detail for the purpose of standardizing the age-determination procedure. Data on the feeding behaviour of juvenile sockeye in the watersheds of the Kamchatka and Ozernaya rivers are presented, and questions concerning the food competition of fish in the Kamchatka River watershed are discussed. The causes of fluctuations in the abundance of the sockeye in the Kamchatka and Ozernaya rivers are analyzed, and the latest methods of forecasting the abundance of these stocks and the fluctuations in the abundance of some secondary populations of Asian sockeye are examined. The author also looks at the future of natural and artificial reproduction of the species. The book also includes reference information.

This book approved for publication by the decision of Scientific Board of Kamchatka Research Institute of Fisheries & Oceanography (protocol No. 20, 26 July 2010), Petropavlvosk-Kamchatsky.

This English version of book "Asian Sockeye Salmon" is intended for students, fishery biologists and scientists of the Pacific Rim countries, using the valuable resource — Salmon.

Table of contents:

• "Preface to English version";
• "Introduction";
• "Section 1. Distribution and life cycle of the sockeye";
• "Section 2. Species structure in the sockeye";
• "Section 3. Research history of the Asian sockeye";
• "Section 4. Material and methods";
• "Section 5. Anadromous migration";
• "Section 6. Characteristics of the breeding grounds and spawning periods";
• "Section 7 Foraging waters";
• "Section 8. Freshwater period of the largest Asian stocks of sockeye (Kamchatka and Ozernaya rivers)":
  • "8.1. Spatial distribution of the sockeye populations of the Kamchatka R.";
  • "8.2. Spatial distribution of the sockeye populations of the Ozernaya R.";
  • "8.3. Seasonal rhythms of growth":
    • "8.3.1. Linear growth of underyearling and yearling sockeye in the watersheds of the Kamchatka R. and Kuri L. (Ozernaya R.)";
    • "8.3.2. Formation of the first annulus on the scales in juvenile sockeye of the Kamchatka R.";
    • "8.3.3. Compensatory growth in sockeye smolts of the Kamchatka R."
    • "8.3.4. Seasonal rhythms of growth in young sockeye of Azabach L. (Kamchatka R.) and Kuril L. (Ozernaya R.)";
  • "8.4. Downstream migration and qualitative characteristics of sockeye smolts migrating from Azabach L. and Kuril L. (Ozernaya R.)";
  • "8.5. Feeding characteristics of juvenile sockeye in the Kamchatka R. watershed. Food competitors and predators":
    • "8.5.1. Spatial distribution of the threespine stickleback population in the Kamchatka R. watershed";
    • "8.5.2. Feeding habits of underyearling sockeye in the Kamchatka R. watershed";
    • "8.5.3. Food relationships of fish foraging in the Azabach L. watershed";
    • "8.5.4. Predators of the sockeye in the Azabach L. watershed";
  • "8.6. Feeding habits of juvenile sockeye in Kuril L.";
  • "8.7. Interannual variability in the growth of the sockeye, depending on the feeding and temperature conditions at the foraging grounds (structural analysis of fish scales)":
    • "8.7.1. Correlation between body size and scale structure in juvenile sockeye";
    • "8.7.2. Growth of juvenile sockeye in Azabach L. (Kamchatka R.)";
    • "8.7.3. Growth of juvenile sockeye in Kuril L. (Ozernaya R.)";
  • "8.8. Interannual variability of Diphyllobothrium sp. infestation in sockeye of the Kamchatka R.";
• "Section 9. Methodological aspects of determining the duration of the freshwater period in the life cycle of the sockeye":
  • "9.1. Recommendations on age determination in the sockeye";
  • "9.2. Influence of hereditary factors on scale structure in the sockeye";
• "Section 10. Biological structure of local stocks of the Asian sockeye":
  • "10.1. Age composition";
  • "10.2. Size-weight characteristics";
  • "10.3. Fecundity and maturity coefficients";
• "Section 11. Population dynamics of local stocks of the Asian sockeye":
  • "11.1. Sockeye of the Ozernaya R.";
  • "11.2. Sockeye of the Kamchatka R.";
  • "11.3 Secondary stocks of the sockeye";
• "Section 12. The prospects of natural and artificial reproduction of the Asian sockeye";
• "Summary";
• "Appendix";
• "Bibliography";
• "Further studies of the Asian sockeye (principal publications, 1995–2010)".

Author: Victor Fedorovich Bugaev, doctor of biological sciences, Kamchatka biologist.

Download the book:

Bugaev Victor F. Asian Sockeye Salmon (freshwater period of life, biological structure, population dynamics). PDF, 21 Mb.

Монография на русском языке: Бугаев В. Ф. Азиатская нерка (пресноводный период жизни, структура локальных стад, динамика численности).

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