Alewife and Blueback Herring PDF Download

Author: Earl L. Bozeman
Publisher:
ISBN:
Category : Alewife
Languages : en
Pages : 28

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Author: Didier Paugy
Publisher: IRD Orstom
ISBN:
Category : Nature
Languages : fr
Pages : 468

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Book Description
This new reexamined and corrected fauna displays an up to date account of knowledge on the systematics of the fresh and brackish water fishes of West Africa. Its aim is to help ichthyologists with the identification of the species they collect. It is made practical and didactic by paying special attention to iconography and as far as possibly by giving priority to the simplest and easiest observable criteria. West Africa, from the Senegal River basin in the North West to the Chad basin in the North East and the Cross River in the South, includes the majority of the Sahelo-Sudan basins, except for the Nile, and the Western Guinea area, covering the Atlantic Coastal Basins from Guinea to Western Cote d'Ivoire. Specialists of each group or family were called to write the chapters. To facilitate the access of this fauna, an English translation is provided for all text. Summary tables, comparing morphological characters and measures for the different species, complement the identification keys. Distribution maps are provided for freshwater species. At present, 64 families are described, including 192 genera and 584 valid species. A reduced paper version is presented in two volumes; the integral CD-ROM version is inserted on the back cover of the second volume.

Author: Patrick Williot
Publisher: Cemagref
ISBN:
Category : Acipenser
Languages : en
Pages : 524

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Author: Derek S. Davis
Publisher: [Halifax, N.S.] : Nova Scotia Museum
ISBN:
Category : Nature
Languages : en
Pages : 536

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Book Description
Produced in joint with the Dapartmant of lands and Forests. The history of Nova Scotia.

Author: Kazunari Yano
Publisher:
ISBN:
Category : Megamouth shark
Languages : en
Pages : 228

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Author: Evald Ojaveer
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 428

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Author: William Beverley Scott
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 786

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Book Description
Atlantic Fishes of Canada is intended as a replacement volume for Fishes of the Atlantic Coast of Canada, which was published in 1966 as Bulletin 155 of the Fisheries Research Board of Canada. The major portion of the present book is concerned with the biology, distribution, and/or economics of the fishes occurring off our Atlantic coast. Most accounts are well documented, necessitating an extensive reference list, which we hope will prove useful in itself. A checklist and keys are also presented for students or anyone concerned with the kinds and identification of fishes making up the fauna of the region. Many changes have occurred since 1966, not only in the state of our knowledge of the fauna and its biology but also in the management of the resource. Changes in the management are well documented in the section 'Atlantic Coast Fisheries and Fisheries Research in the Last 25 Years.'

Author: Jeffrey C. Carrier
Publisher: CRC Press
ISBN: 0203491319
Category : Nature
Languages : en
Pages : 614

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Book Description
Winner of Choice Magazines Outstanding Academic Title award, January 2005! Sharks and their relatives are the subjects of tremendous interest. The publics fascination is influenced by their roles in movies and popular literature, while the media races to cover stories of predators endangering helpless humans. The alarming threat to shark popul

Author: Kathleen S. Cole
Publisher: Univ of California Press
ISBN: 0520947975
Category : Science
Languages : en
Pages : 643

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Book Description
Marine fishes represent astonishing diversity with respect to practically every aspect of their biology. Reproductive modes and sexual patterns are especially fascinating and provide deep insight into general evolutionary problems. In this volume, chapters focus on reproduction and sexuality among groups of fishes defined by habitat, taxon, and the reproductive processes that are critical for reproductive success. The book illustrates how knowledge of reproductive biology among marine fishes can help identify vulnerable and potentially vulnerable species in the face of changing environmental conditions and increasing human-based pressures.

Author: Robert Patzner
Publisher: CRC Press
ISBN: 1439862338
Category : Science
Languages : en
Pages : 679

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Book Description
Among all vertebrates, gobies are second in diversity only to the teleost family Cyprinidae. The Gobiidae consists of more than 200 genera and nearly 2,000 species and make up the largest family of marine fishes. Gobies account for as much as 50% of the energy flow in coral reef communities. Their small size, ability to adapt to numerous ecological