The Superfamily Mactroidea (Mollusca:Bivalvia) in American Waters
The Superfamily Mactroidea (Mollusca:Bivalvia) in American Waters

Author: Javier H. Signorelli

Publisher: Springer Nature

Published: 2019-11-04

Total Pages: 156

ISBN-13: 3030290972

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This book identifies all valid species belonging to the superfamily Mactroidea living in American waters, distributed across fourteen biogeographical provinces. It also provides an updated classification of the widely occurring Mactroidea superfamily, which comprises eight subfamilies grouped into four families: Mactridae (Lamarck, 1809); Anatinellidae (Deshayes, J.Gray 1853); Cardiliidae (Fischer, 1887) and Mesodesmatidae (J. Gray, 1840). The species included in this superfamily are known to have existed in North America since the Early Cretaceous.

Bivalve Seashells of Western North America. Marine Bivalve Mollusks from Arctic Alaska to Baja California
Bivalve Seashells of Western North America. Marine Bivalve Mollusks from Arctic Alaska to Baja California

Author: Eugene V. Coan

Publisher: Paul Valentich-Scott

Published: 2000-05-10

Total Pages: 774

ISBN-13: 0936494301

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The culmination of a ten-year study, Bivalve Seashells of Western North America treats all bivalve mollusks living from northern Baja California, Mexico to Arctic Alaska. A total of 472 species are described and illustrated with detailed photographs and drawings. All habitats in the region are included from the intertidal splash zone to the abyssal depths of the ocean basins. The book has over 4,800 complete bibliographic references to the bivalves, including citations on the biology, physiology, ecology, and taxonomy of this commercially and biologically important group. Character tables and dichotomous keys assist the reader in identification. Also included in the 764 page book is an illustrated key to the superfamiles of the region, and a complete glossary.

Bivalve Seashells of Western South America
Bivalve Seashells of Western South America

Author: Paul Valentich-Scott

Publisher:

Published: 2020-05-29

Total Pages:

ISBN-13: 9780936494470

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Bivalve Seashells of Western South America describes and illustrates all species of living marine bivalve mollusks from Punta Aguja, Perú, to Isla Chiloé, Chile. It includes all habitats from the intertidal zone to the deep ocean. Identification keys and tables are included to assist the reader in separating families, genera, and species. Thousands of photographs are included, including those of type specimens used in the original descriptions of these species. Also included is a glossary of nomenclatural, ecological, and morphological terms, and a large bibliography of cited literature.This is the third book on the eastern Pacific Ocean marine bivalves. The format is similar to Bivalve Seashells of Western North America, and Bivalve Seashells of Tropical West America.

The Living Marine Resources of the Eastern Central Atlantic
The Living Marine Resources of the Eastern Central Atlantic

Author: Kent E. Carpenter

Publisher: Food & Agriculture Organization of the UN (FAO)

Published: 2014

Total Pages: 0

ISBN-13: 9789251092668

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Each family generally has an account summarizing family diagnostic characters, biological and fisheries information, notes on similar families occurring in the area, a key to species, a check list of species, and a short list of relevant literature. Families that are less important to fisheries include an abbreviated family account.

The Brackish Water Clam Rangia Cuneata as Indicator of Ecological Effects of Salinity Changes in Coastal Waters
The Brackish Water Clam Rangia Cuneata as Indicator of Ecological Effects of Salinity Changes in Coastal Waters

Author: Sewell Hepburn Hopkins

Publisher:

Published: 1973

Total Pages: 270

ISBN-13:

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In the search for a laboratory test that could be used to determine when estuarine salinity changes were favorable or unfavorable, salinities in the range from 0 to 38 were tested on adult Rangia clams for effects on survival; regulation of internal salinity; intake, use and release of amino acids; respiration; glycogen use under aerobic and anaerobic conditions; feeding rate; ciliary activity; uptake of glucose; glycogen storage and 'index of condition' in natural environments through a seasonal cycle; carbohydrate-digesting enzymes; and reproduction. It was determined that Rangia cuneata has a system of compensating reactions that allows it to adjust to changes in salinity over the range from 0 to 38 ppt and over the temperature range from 10 to 35C without harm. It was concluded from these and further studies that the key to the welfare of a Rangia population is not the physiology of the adult individuals, but reproduction and recruitment. The keys to the use of Rangia cuneata as an indicator were found to be two facts: (1) a change in salinity, either up from near 0 or down from 15 ppt and above, is necessary to induce spawning; (2) the embryos and early larvae can survive only in salinities between 2 and 10 (or 15) ppt. (Modified author abstract).

Marine Shells of Goa
Marine Shells of Goa

Author: Sangeeta M. Sonak

Publisher: Springer

Published: 2017-08-14

Total Pages: 257

ISBN-13: 3319550993

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This book offers a unique introduction to the study of shells and molluscs for all those who take pleasure in shells, the treasure of the sea. However, unlike other shell albums, compendiums or guides, the central focus of this book is on shells and not molluscs. Therefore, in addition to the classification and identification of shells, the book also addresses aspects including the shell art and shell craft of Goa, the importance of shells, and literary works related to shells and their writers. The book also describes various shell habitats of Goa. The primary objective of this book is to introduce readers to the concept of shell heritage and to spark curiosity and scientific interest, not just among conchologists but also local and visiting beachgoers. Accordingly, it primarily uses straightforward, non-technical language. The book will also appeal to those readers without any previous knowledge of the subject, helping them to understand and appreciate the shells that they collect from the seashores of Goa.