The Physiological Ecology of Tunas

1st Edition - January 28, 1979
Editor: Gary Sharp
Language: English
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 1 4 7 5 7 - 6

The Physiological Ecology of Tunas documents the proceedings of the Tuna Physiology Workshop held at the National Marine Fisheries Service Southwest Fisheries Center at La JoDa,… Read more

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The Physiological Ecology of Tunas documents the proceedings of the Tuna Physiology Workshop held at the National Marine Fisheries Service Southwest Fisheries Center at La JoDa, California, January 10-15, 1977. The contributions made by researchers at the workshop are organized into seven chapters. The first chapter includes studies on the morphological diversity and muscle-tissue-specific enzymatic attributes of scombrids. Papers in the second chapter deal with the integrated aspects of tuna behavior and capabilities that result from their complex cardiovascular system. The third chapter contains studies on skipjack tuna white muscle and the locomotor muscles of Scomber and Katsuwonus. The fourth chapter focuses on the thermal biology of tunas while the fifth chapter examines the hydromechanics of tuna propulsion. The sixth chapter provides information on energetic costs of tunas, and observations on physiological demands and correlates. It culminates with a conceptual model for the complex life cycle of the extant "ultimate tuna," the Atlantic bluefin tuna. The seventh chapter discusses applications of tuna physiology studies.

List of ContributorsForewordPrefaceColor PlatesChapter 1 The Tunas I. Introduction II. Adaptations and Systematics of the Mackerels and Tunas III. The Distribution of Red and White Swimming Muscles, Their Biochemistry, and the Biochemical Phylogeny of Selected Scombrid FishesChapter 2 The Cardiovascular and Respiratory System I. Introduction II. Ram Gill Ventilation in Fish III. Functional Cardiac Morphology and Biochemistry in Atlantic Bluefin Tuna IV. Comparative Morphology of the Central Heat Exchangers in the Skipjacks Katsuwonus and Euthynnus V. Estimates of Blood Volume in the Albacore Tuna VI. Activity of Albacore Serum Complement Reflects Its Thermoregulatory CapacityChapter 3 The Intermediary Metabolism, Biochemistry, and Swimming Muscle Ultrastructure of Tunas I. The Tuna Power Plant and Furnace II. Skipjack Tuna White Muscle: A Blueprint for the Integration of Aerobic and Anaerobic Carbohydrate Metabolism III. Myotomal Muscle Fiber Types in Scomber and KatsuwonusChapter 4 Thermal Biology of the Tunas I. A Historical Introduction to the Study of Warm-Bodied Tuna II. The Relation between Heat Generation, Conservation, and the Swimming Energetics of Tunas III. Correlations between Environment, Physiology, and Activity and the Effects on Thermoregulation in Skipjack Tuna IV. Body Surface and Gill Heat Loss Rates in Restrained Skipjack Tuna V. Temperature Effects on Speeds of Muscle Contraction and Stasis Metabolic RateChapter 5 Hydrodynamics and Hydromechanics I. Introduction II. Estimation of Minimum Sustained Speed and Associated Body Drag of Scombrids III. A Comparative Mechanophysiological Study of Fish Locomotion with Implications for Tuna-Like Swimming ModeChapter 6 The Energetics of Tunas I. Introduction II. Fat Deposition and Utilization in Albacore III. Bioenergetic Spectra of Skipjack and Yellowfin Tunas IV. Preliminary Models of Annual Life History Cycles of the North Atlantic Bluefin TunaChapter 7 The Practical Application of Tuna Physiology Studies I. Behavioral and Physiological Properties of Tuna and Their Effects on Vulnerability to Fishing Gear II. Perspectives: The Past, Present, and Future of Tuna PhysiologyReferences