A Guide to the Euphausiacea of the Southern Ocean PDF Download
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Author: John M. Kirkwood
Publisher:
ISBN:
Category : Crustacea
Languages : en
Pages : 412
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Book Description
Author: John M. Kirkwood
Publisher:
ISBN:
Category : Crustacea
Languages : en
Pages : 412
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Book Description
Author: D. B. O'Sullivan
Publisher:
ISBN: 9780642886996
Category : Antarctic Ocean
Languages : en
Pages : 136
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Book Description
Author: D. B. O'Sullivan
Publisher:
ISBN:
Category : Marine zooplankton
Languages : en
Pages : 72
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Book Description
Author: D. B. O'Sullivan
Publisher:
ISBN: 9780642886989
Category : Coelenterata
Languages : en
Pages : 43
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Book Description
Author: D. B. O'Sullivan
Publisher:
ISBN:
Category : Ctenophora
Languages : en
Pages : 60
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Book Description
Author: Volker Siegel
Publisher: Springer
ISBN: 331929279X
Category : Science
Languages : en
Pages : 441
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Book Description
This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.
Author:
Publisher: PediaPress
ISBN:
Category :
Languages : en
Pages : 125
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Book Description
Author: Gustavo Lovrich
Publisher: Oxford University Press
ISBN: 0197517390
Category : Science
Languages : en
Pages : 579
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Book Description
This is the ninth volume of ten in the The Natural History of the Crustacea Series. The chapters in this volume synthesize the diverse topics in fisheries and aquaculture. In the first part of the book, chapters explore worldwide crustacean fisheries. This section comes to a conclusion with two chapters on harvested crustaceans that are usually not within the focus of the mainstream fisheries research, possibly because they are caught by local fishing communities in small-scale operations and sold locally as subsistence activity. In the second part of the book, the authors explore the variety of cultured crustacean species, like shrimps, prawns, lobsters, and crabs. Chapters in the third part of the volume focus on important challenges and opportunities, including diseases and parasitism, the use of crustacean as bioindicators, and their role in biotechnology.
Author: Jonah Young
Publisher: Ice Press
ISBN:
Category : Science
Languages : en
Pages : 79
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Book Description
Note that this book is based on Wikipedia and other public domain resources. Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name krill comes from the Norwegian word krill, meaning "young fry of fish", which is also often attributed to other species of fish. Krill are considered an important trophic level connection – near the bottom of the food chain – because they feed on phytoplankton and to a lesser extent zooplankton, converting these into a form suitable for many larger animals for whom krill makes up the largest part of their diet. In the Southern Ocean, one species, the Antarctic krill, Euphausia superba, makes up an estimated biomass of around 379 million tons, more than that of humans. Of this, over half is eaten by whales, seals, penguins, squid and fish each year, and is replaced by growth and reproduction. Most krill species display large daily vertical migrations, thus providing food for predators near the surface at night and in deeper waters during the day.
Author: D. B. O'Sullivan
Publisher:
ISBN: 9780642879684
Category : Nemertea
Languages : en
Pages : 34
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Book Description
