Management of Aquatic Environment for Fish and Fisheries - Couverture souple

Datta, Dr. Subhendu

Couverture souple

ISBN 10 : 1670344207 ISBN 13 : 9781670344205

Editeur : Independently published, 2019

Synopsis

CONTENTS:CHAPTER – 1: Sources of aquatic pollution, its effects on fish & fisheries and control options. Definition, Sources of Aquatic Pollution, its effects on fish & fisheries and Control options: Definition, Sources of water pollution, Changes in the physico-chemical parameters of water due to pollution, Effect of Aquatic Pollution on Fish and Fisheries - On Ecology - Eutrophication etc., Biological effects on fish, Effects of pollution on eggs, spawn, fry on breeding grounds and feeding grounds, Effects on fishing and fishery products, Ciguatera toxins and paralytic shellfish poisoning, Control of water pollution, Present status of rivers and reservoir pollution in India.CHAPTER – 2: Effect of dams and weirs on fish and fisheries Definition, Phases of river modification, Constraints of the open systems, Positive and negative effects of dams and weirs on the fisheries of river, Fish migration, Effect on hilsa migration, Effect of Farakka barrage on hilsa fishery and some other freshwater fishes and prawn species, Recommended mitigation measures - Fishways, fish pass, fish ladder, fish lock etc., Mitigation for High Dam Reservoirs, CHAPTER – 3: Destructive methods of fish catchingUse of unselective gears, Catching of juveniles and brooders, Use of explosives and poisons, Electro fishing, Rules and regulations to check destructive methods of fish catching. CHAPTER – 4: Conservation of fishery resourcesIntroduction, What is conservation? Threats to aquatic biodiversity, Conservancy measures for river and reservoir fisheries, Status of fish biodiversity, Need for biodiversity, Status of fish biodiversity, Impact of stresses on fish biodiversity, Conservation strategies for fish genetic resources.

Détails de l'édition

• Éditeur: Independently published
• Date d'édition: 2019
• Langue: anglais
• ISBN 10: 1670344207
• ISBN 13: 9781670344205
• Reliure: Broché
• Nombre de pages: 83
• Coordonnées du fabricant: Manufactured by Amazon on behalf of the author; https://www.amazon.fr/hz/contact-us; ; c/o Amazon Media EU S.à.r.l., 38 Avenue John F. Kennedy; Luxembourg; L-1855; Luxembourg