Observations on the Habits of the Crustacean Emerita Analoga

Observations on the Habits of the Crustacean Emerita Analoga PDF Author: Frank Walter Weymouth
Publisher:
ISBN:
Category : Crustacea
Languages : en
Pages : 64

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Observations on the Habits of the Crustacean Emerita Analoga

Observations on the Habits of the Crustacean Emerita Analoga PDF Author: Frank Walter Weymouth
Publisher:
ISBN:
Category : Crustacea
Languages : en
Pages : 64

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Observations on the Habits of the Crustacean Emerita Analoga

Observations on the Habits of the Crustacean Emerita Analoga PDF Author: Frank Walter Weymouth
Publisher:
ISBN:
Category : Emerita analoga
Languages : en
Pages : 22

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University of California Publications in Zoology

University of California Publications in Zoology PDF Author: University of California (1868-1952)
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 572

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An Outline of the Morphology and Life History of Crithidia Leptocoridis, Sp. Nov

An Outline of the Morphology and Life History of Crithidia Leptocoridis, Sp. Nov PDF Author: Irene Agnes McCulloch
Publisher:
ISBN:
Category : Crithidia leptocoridis
Languages : en
Pages : 728

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Library Bulletin of the University of St. Andrews

Library Bulletin of the University of St. Andrews PDF Author: University of St. Andrews
Publisher:
ISBN:
Category : Classified catalogs (Dewey decimal)
Languages : en
Pages : 644

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Fish Bulletin

Fish Bulletin PDF Author: California. Department of Fish and Game
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 442

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Bulletin ...

Bulletin ... PDF Author: University of St. Andrews. Library
Publisher:
ISBN:
Category :
Languages : en
Pages : 646

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The Life-history and Growth of the Pismo Clam

The Life-history and Growth of the Pismo Clam PDF Author: Frank Walter Weymouth
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ISBN:
Category : Clams
Languages : en
Pages : 688

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Commercially the Pismo clam (Tivela stultorum)ranks first in importance in California among the clams and third among all the mollusks, being exceeded only by the oyster and the abalone. A second reason for considering this species is that there has been such evidence of depletion as to lead to increasingly more stringent protective laws, all of which have been urged by the residents of the county in which the clam is most abundant. ... An accurate study of the cause and extent of this apparent diminution must await knowledge of at least the fundamental facts of the life history of this clam. ... The more important features are considered to be: the habits, enemies and mortality of the adult; the rate of growth and the factors affecting it; the age at certain significant periods, particularly at sexual maturity and at the time when the legal size is reached; the most common age of clams forming the commercial catch; the season of spawning and the productivity; and the habits, enemies and mortality of the young.

Report Upon the Condition and Progress of the U.S. National Museum During the Year Ending June 30 ...

Report Upon the Condition and Progress of the U.S. National Museum During the Year Ending June 30 ... PDF Author: United States National Museum
Publisher:
ISBN:
Category :
Languages : en
Pages : 180

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Annual Report

Annual Report PDF Author: United States National Museum
Publisher:
ISBN:
Category :
Languages : en
Pages : 186

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