Genetic Aspects of Conservation and Cultivation of Giant Clams PDF Download
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Author: Patricia Munro
Publisher: WorldFish
ISBN: 9718709363
Category : Clam fisheries
Languages : en
Pages : 54
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Book Description
Author: Patricia Munro
Publisher: WorldFish
ISBN: 9718709363
Category : Clam fisheries
Languages : en
Pages : 54
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Book Description
Author: United States. Agency for International Development
Publisher:
ISBN:
Category : Economic development
Languages : en
Pages : 382
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Book Description
Author: Elizabeth Gosling
Publisher: John Wiley & Sons
ISBN: 1405147571
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
Bivalve Molluscs is an extremely comprehensive book coveringall major aspects of this important class of invertebrates. As wellas being an important class biologically and ecologically, many ofthe bivalves are fished and cultured commercially (e.g. mussels,oysters, scallops and clams) in a multi-billion dollar worldwideindustry. Elizabeth Gosling who has a huge wealth of research, teachingand hands on experience working with bivalves, has written alandmark book that will stand for many years as the standard workon the subject. Chapters in Bivalve Molluscs covermorphology, ecology, feeding, reproduction, settlement andrecruitment, growth, physiology, fisheries, aquaculture, genetics,diseases and parasites, and public health issues. A fullunderstanding of many of these aspects is vital for all thoseworking in bivalve fisheries and culture. An essential purchase for anyone concerned with this importantclass of animals, copies of Bivalve Molluscs should be onthe shelves of biologists, ecologists, environmental scientists,fisheries scientists and personnel within the aquaculture industry.Copies of the book should be available in all libraries andresearch establishments where these subjects are studied ortaught. Elizabeth Gosling is based at the Galway-Mayo Instituteof Technology, Galway, Ireland.
Author: Johann D. Bell
Publisher: Elsevier
ISBN: 9780120261499
Category : Science
Languages : en
Pages : 400
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Book Description
Annotation Many of the world's fisheries are in trouble - they no longer yield the catches, and potential profits, they once did. The habitats that support fisheries have been damaged by pollution and other irresponsible use of coastal land. Destructive fishing methods like trawling and blast fishing have also changed fish habitats resulting in support of fewer fish. The authors draw on more than 1000 scientific papers covering 11 groups/species of marine invertebrates. From this large literature, they distill 20 lessons for assessing and guiding the use of restocking and stock enhancement in the management of invertebrate fisheries. · Written by 7 expert authors · Covers 11 groups/species of marine invertebrates · Reviews over 1000 scientific papers · Identifies 20 lessons that can be learned from past restocking and stock enhancement initiatives · Proposes a new approach to assess the potential value of hatchery releases to complement other forms of management · Assesses progress of disciple against the blueprint for a responsible approach.
Author: Roger S. V. Pullin
Publisher: WorldFish
ISBN: 9718709908
Category : Fishes
Languages : en
Pages : 71
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251049617
Category : Business & Economics
Languages : en
Pages : 226
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Book Description
With coastal fisheries in decline around the world, there is growing concern about how long current sources of seafood can supply world needs. There is an increasing emphasis on restocking and aquaculture-based stock enhancement as a way to rapidly replenish depleted fish stocks and increase fishery landings. This publication contains case studies on the use of sea ranching and marine hatchery enhancement to generate income, re-establish fisheries and conserve aquatic biodiversity, including studies from Norway, Australia, the Pacific Islands, the Caspian Sea with an emphasis on Iran, and Japan.
Author: Lucius G. Eldredge
Publisher:
ISBN:
Category : Animal introduction
Languages : en
Pages : 140
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Book Description
Author: Roger S. V. Pullin
Publisher: WorldFish
ISBN: 9718020039
Category : Aquatic ecology
Languages : en
Pages : 278
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Book Description
Author: Timery S. DeBoer
Publisher:
ISBN:
Category :
Languages : en
Pages : 304
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Book Description
Abstract: Understanding how the physical environment shapes patterns of population connectivity is essential to understanding the evolution and conservation of biodiversity. While dispersal barriers that promote regional genetic differentiation are often apparent in terrestrial environments, the relationship between the physical environment and barriers to connectivity in marine populations is less obvious because most species have a dispersive pelagic larval stage capable of traversing long distances. My thesis examines how the abiotic environment shapes genetic structure and population connectivity of marine invertebrates across Indo-West Pacific using Tridacna giant clams as a model. Data from Tridacna crocea indicates strong genetic structure between West Papua, central Indonesia/Philippines, and Sumatra. The estimated average dispersal distance was far below predictions based on passive dispersal via currents and virtually zero between regions. These results indicate potent limits to genetic and demographic connectivity for this species, and are likely related to sea level fluctuations, physical oceanography and larval ecology. Results from mitochondrial DNA were consistent with those from 9 microsatellites. To evaluate the generality of this result, I compared mtDNA phylogeographic patterns in Tridacna crocea, T. maxima, and T. squamosa. Concordant patterns across three congeners suggest the influence of broadly acting oceanographic and/or geological forces in shaping regional genetic structure. Patterns are concordant with a recent global classification of marine environments, suggesting that abiotic processes are structuring marine biodiversity at multiple levels. Finally, I examined the symbiosis between giant clams and their algal symbionts. Results show that symbiont types differ with temperature and that symbiont communities may differ between individuals based on local environmental conditions. Given the well-documented ecological differences among symbionts, these results highlight potential ecological consequences of this symbiosis in the face of global climate change. Combined, these results indicate that patterns of regional divergence are shaped by physical oceanographic and geological processes, but may also be shaped by clam-algal symbiosis. These data have strong conservation implications. Understanding the scale and pattern of population connectivity is critical to effective conservation planning, and the variation of symbiont communities with temperature may prove useful in managing populations of these endangered species in periods of rising ocean temperatures.
Author:
Publisher:
ISBN:
Category : Aquaculture
Languages : en
Pages : 260
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Book Description
