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Author: Frank Collins Baker
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 668
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Book Description
Author: Frank Collins Baker
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 668
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Book Description
Author: Frank Collins Baker
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 1148
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Book Description
Author: G. Bauer
Publisher: Springer Science & Business Media
ISBN: 3642568696
Category : Science
Languages : en
Pages : 400
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Book Description
All those who think that bivalves are boring are in the best company. Karl von Frisch is reported to have turned the pages more quickly in texts where bivalves were treated because, according to him, they literally lack any behaviour. The fact that they can filtrate huge amounts of water, burrow into the sedi ment, actively swim, drill holes into rocks and boats or detect shadows with the aid of pretty blue eyes located on the rim of their mantle obviously left v. Frisch unimpressed. Why, then, a book on the large freshwater mussels (Naiads or Unionoida), which on first sight are much less spectacular than the marine ones? The main reason is that they are keepers of secrets which they reveal only on close and careful inspection. This is not only true for the pearls some species produce and which over centuries have contributed to the treasures of bishops and kings, but particularly for their ecology: their life cycles are linked with those of fishes, some can occur in incredible densities and some can live for more than 100 years. Thus, the presence or absence of naiads in a lake or stream has manifold implications.
Author: John Bayard Burch
Publisher:
ISBN:
Category : Bivalvia
Languages : en
Pages : 120
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Book Description
Author: Gerry L. Mackie
Publisher:
ISBN:
Category : Mollusks
Languages : en
Pages : 156
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Book Description
Author: David L. Strayer
Publisher: Univ of California Press
ISBN: 0520942523
Category : Science
Languages : en
Pages : 217
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Book Description
Pearly mussels (Unionoidea) live in lakes, rivers, and streams around the world. These bivalves play important roles in freshwater ecosystems and were once both culturally and economically valuable as sources of food, pearls, and mother-of-pearl. Today, however, hundreds of species of these mussels are extinct or endangered. David L. Strayer provides a critical synthesis of the factors that control the distribution and abundance of pearly mussels. Using empirical analyses and models, he assesses the effects of dispersal, habitat quality, availability of fish hosts, adequate food, predators, and parasites. He also addresses conservation issues that apply to other inhabitants of fresh waters around the globe and other pressing issues in contemporary ecology.
Author: Charles Lydeard
Publisher: Johns Hopkins University Press
ISBN: 1421427311
Category : Science
Languages : en
Pages : 255
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Book Description
Vinarski, Amy R. Wethington, Thomas Wilke
Author: Kevin S. Cummings
Publisher: ILlinois Natural History Survey
ISBN:
Category : Nature
Languages : en
Pages : 216
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Book Description
Author: Wisconsin Geological and Natural History Survey
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 600
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Book Description
Author: Rolland Keith Stewart
Publisher:
ISBN:
Category : Marine pollution
Languages : en
Pages : 142
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Book Description
