The Effects of Diet, Population, and Water Temperature on the Stress Response of Angled Largemouth Bass Micropterus Salmoides

The Effects of Diet, Population, and Water Temperature on the Stress Response of Angled Largemouth Bass Micropterus Salmoides
Author: Colin P. Dinken
Publisher:
Total Pages: 154
Release: 2018
Genre:
ISBN:
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Angling practices subject Largemouth Bass Micropterus salmoides to multiple stressors, causing homeostatic physiological disturbances. The combined effects of ambient and live well temperature on stress responses from exercise have not been thoroughly examined. Large numbers of fish required for stress experiments can be produced by intensive culture, but hatchery fish may differ physiologically from wild fish due to dietary carbohydrates. Therefore, the effects of diet, population, and temperature on stress response and health were examined. Stress responses were similar among fish fed formulated and live diets and liver health improved within 4-6 weeks. Although cortisol responses of hatchery and wild fish differed, secondary stress responses were similar. Fish subjected to simulated angling at temperatures of 17, 25, 33 °C with live well temperature differentials of -4, 0, +4 °C, had the lowest resilience to stress at the warmest temperatures, exhausting energy supplies, coincident with metabolic acidosis and poor ion regulation.

Immunomodulators in Aquaculture and Fish Health

Immunomodulators in Aquaculture and Fish Health
Author: Preetham Elumalai
Publisher: CRC Press
Total Pages: 481
Release: 2023-10-31
Genre: Technology & Engineering
ISBN: 1000964175
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This reference book provides updated information about different immunomodulators for managing fish health and sustainable aquaculture. Immunomodulators are dietary additives that enhance innate defense mechanisms and increase resistance against specific pathogens and diseases. The book covers the different types of immunostimulants, their modes of action, and their efficacies. It also reviews safety concerns, ethical regulations, limitations, and outreach to farmers. It discusses the application of herbal immunomodulators, antioxidants, pre- and pro-biotics, in disease management. Features: • Reviews the pressing topic of reduction of antibiotic use in aquaculture • Discusses herbal immunomodulators, nutrients, antioxidants and pre- and pro-biotics • Covers the topic of progressive immunomodulation using nanotechnology • Discusses fish health management in the ever-growing aquaculture industry • Includes natural and synthetic immunomodulators The book is meant for researchers and industry experts in aquaculture, fisheries science, and veterinary medicine.