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Author: Purcell, S.W.
Publisher: Food & Agriculture Org.
ISBN: 9251377936
Category : Technology & Engineering
Languages : en
Pages : 256
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Book Description
Sea cucumbers are harvested and traded in more than 90 countries worldwide. They are exploited in industrial and small-scale fisheries, nearly from pole to pole, especially in the tropics. In some fisheries, more than 20 species are exploited by fishers. Fishers in general know how to distinguish the species they harvest, often identifying them with local names. For fishery officers and even biologists, recognizing sea cucumber species remains daunting however as they are confronted only with the final product: bêche-de-mer (or trepang) which is the processed (cooked and dried) product. This field guide offers a tool for fishery managers, scientists, trade officers and industry workers to recognize live and processed (cooked and dried) animals. This animal resource is mainly exported to Asian markets where it is sold mainly, but not exclusively, as a luxury food item. This book provides identification information on 84 species of sea cucumbers that are commonly or opportunistically (as bycatch) exploited around the world. The list is certainly not all-encompassing, as some other sea cucumber species are also exploited. More scientific data and accounts are needed for species from some regions such as the Eastern Atlantic Ocean. The accounts are based on more than 270 reports and research articles and on comments and reviews by taxonomists and field workers. Two-page identification sheets provide selected information to enable similar species to be distinguished from each other, both in the live and processed (dried) forms. Where available, the following information for each species has been included: scientific and known common names used in different countries and regions; scientific illustrations of the body and ossicles; descriptions of ossicles present in different body parts; a colour photograph of live and dried specimens; basic information on size, habitat, biology, fisheries, human consumption, market value and trade; geographic distribution maps. The volume is fully indexed and contains an introduction, a glossary, simplified dichotomous keys to live animals and dried products and a dedicated bibliography. Readers are encouraged to base their identifications on a combination of morphological features, samples of ossicles from different body parts and information on what habitat and locality the species was found.
Author: Purcell, S.W.
Publisher: Food & Agriculture Org.
ISBN: 9251377936
Category : Technology & Engineering
Languages : en
Pages : 256
Get Book
Book Description
Sea cucumbers are harvested and traded in more than 90 countries worldwide. They are exploited in industrial and small-scale fisheries, nearly from pole to pole, especially in the tropics. In some fisheries, more than 20 species are exploited by fishers. Fishers in general know how to distinguish the species they harvest, often identifying them with local names. For fishery officers and even biologists, recognizing sea cucumber species remains daunting however as they are confronted only with the final product: bêche-de-mer (or trepang) which is the processed (cooked and dried) product. This field guide offers a tool for fishery managers, scientists, trade officers and industry workers to recognize live and processed (cooked and dried) animals. This animal resource is mainly exported to Asian markets where it is sold mainly, but not exclusively, as a luxury food item. This book provides identification information on 84 species of sea cucumbers that are commonly or opportunistically (as bycatch) exploited around the world. The list is certainly not all-encompassing, as some other sea cucumber species are also exploited. More scientific data and accounts are needed for species from some regions such as the Eastern Atlantic Ocean. The accounts are based on more than 270 reports and research articles and on comments and reviews by taxonomists and field workers. Two-page identification sheets provide selected information to enable similar species to be distinguished from each other, both in the live and processed (dried) forms. Where available, the following information for each species has been included: scientific and known common names used in different countries and regions; scientific illustrations of the body and ossicles; descriptions of ossicles present in different body parts; a colour photograph of live and dried specimens; basic information on size, habitat, biology, fisheries, human consumption, market value and trade; geographic distribution maps. The volume is fully indexed and contains an introduction, a glossary, simplified dichotomous keys to live animals and dried products and a dedicated bibliography. Readers are encouraged to base their identifications on a combination of morphological features, samples of ossicles from different body parts and information on what habitat and locality the species was found.
Author: Lauren Benton
Publisher: University of Pennsylvania Press
ISBN: 0812297342
Category : History
Languages : en
Pages : 281
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Book Description
The past twenty-five years have brought a dramatic expansion of scholarship in maritime history, including new research on piracy, long-distance trade, and seafaring cultures. Yet maritime history still inhabits an isolated corner of world history, according to editors Lauren Benton and Nathan Perl-Rosenthal. Benton and Perl-Rosenthal urge historians to place the relationship between maritime and terrestrial processes at the center of the field and to analyze the links between global maritime practices and major transformations in world history. A World at Sea consists of nine original essays that sharpen and expand our understanding of practices and processes across the land-sea divide and the way they influenced global change. The first section highlights the regulatory order of the seas as shaped by strategies of land-based polities and their agents and by conflicts at sea. The second section studies documentary practices that aggregated and conveyed information about sea voyages and encounters, and it traces the wide-ranging impact of the explosion of new information about the maritime world. Probing the political symbolism of the land-sea divide as a threshold of power, the last section features essays that examine the relationship between littoral geographies and sociolegal practices spanning land and sea. Maritime history, the contributors show, matters because the oceans were key sites of experimentation, innovation, and disruption that reflected and sparked wide-ranging global change. Contributors: Lauren Benton, Adam Clulow, Xing Hang, David Igler, Jeppe Mulich, Lisa Norling, Nathan Perl-Rosenthal, Carla Rahn Phillips, Catherine Phipps, Matthew Raffety, Margaret Schotte.
Author: S. Rodionov
Publisher: Springer Science & Business Media
ISBN: 9780792327844
Category : Science
Languages : en
Pages : 266
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Book Description
The Caspian Sea is the world's largest inland body of water both in area and volume. Its drainage area is approximately 3. 5 million square kilometers, extending 2500 km in length, 35°N to 600N, and on average 1000 km wide, 400E 0 to 60E (Fig. 1). Located in a large continental depression about 27 m below sea level and with no surface outlets, the Caspian Sea is particularly sensitive to climatic variations. As with other closed-basin lakes, its level depends on the balance between precipitation and evaporation, which is directly linked to atmospheric circulation. Because of its large area and volume of water, the Caspian Sea effectively. filters climatic noise, and as such may serve as a good indicator of climatic changes through observed changes in its water level. Recently, the Caspian Sea has come under increased attention from physical and social scientists owing to its unique natural characteristics as well as the' very important role it plays in the ecoriomil:!s of such countries as Azerbaijan" Russia, Kazakhstan, Turkmenistan and Iran. Dissolution of the Soviet Union and creation of new independent states resulted in difficult negotiations to divide the wealth of the Caspian Sea and to establish new economic zones. According to one assessment (Ratkovich, 1988), the Caspian Sea basin accounted for about one-third of the total economic output, one-fifth of the agricultural production, and one-third of the hydroelectric production of the former Soviet Union.
Author: Geoff Hunt
Publisher: Bloomsbury Publishing
ISBN: 1844861899
Category : Art
Languages : en
Pages : 144
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Book Description
This timely follow-up to Conway's highly successful Marine Art of Geoff Hunt (2004) presents the considerable artistic output of Britain's leading marine painter since 2003. This new volume is heavily illustrated with images ranging from large paintings to sketchbook drawings with text written by the artist himself. The new book reflects Hunt's developing career during a time in which he served a five-year term as President of the Royal Society of Marine Artists, worked on large-scale paintings such as the definitive Mary Rose,and also completed numerous outdoor sketches and paintings. The book is divided into six sections: 1. The Sea Painter's World, an introduction to the artist's studio work at Merton Place, London and his plein air work on the River Thames; 2. Home Waters; 3. The Mediterranean; 4. In the Wake of Nelson; 5. North America and 6. The West Indies and Beyond. This concept sets Geoff's work in a broadly geographical context, showcasing the artist's freer plein air style alongside the exhaustively researched maritime history paintings to which he owes his standing as Britain's leading marine artist.
Author: Christophe Migon
Publisher: John Wiley & Sons
ISBN: 1119704820
Category : Science
Languages : en
Pages : 210
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Book Description
Due to its particular characteristics, the Mediterranean Sea is often viewed as a microcosm of the World Ocean. Its proportionally-reduced dimensions and peculiar hydrological circulation render it susceptible to environmental and climatic constraints, which are rapidly evolving. The Mediterranean is therefore an ideal site to examine, in order to better understand a number of key oceanographic phenomena. This is especially true of the Ligurian Sea where, due to its geology, oceanic conditions are found close to the coast. As such, 30 years ago, an offshore time-series site provided a fresh impetus to a long history of marine biology research, which has generated a very important body of data and knowledge. This is the second volume, in a two-volume series, that summarizes this research. Across these two books, the reader will find 13 chapters that examine the geology, physics, chemistry and biology of the Ligurian Sea ? always with the goal of providing key elements of oceanography in a changing world.
Author: R. H. Mellen
Publisher:
ISBN:
Category : Absorption of sound
Languages : en
Pages : 170
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Book Description
Author: Maja Kominko
Publisher: Cambridge University Press
ISBN: 1107020883
Category : History
Languages : en
Pages : 409
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Book Description
New study of the Christian Topography, a sixth-century illustrated treatise, and its intellectual milieu.
Author: Christophe Migon
Publisher: John Wiley & Sons
ISBN: 1786304287
Category : Science
Languages : en
Pages : 238
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Book Description
Due to its particular characteristics, the Mediterranean Sea is often viewed as a microcosm of the World Ocean. Its proportionally-reduced dimensions and peculiar hydrological circulation render it susceptible to environmental and climatic constraints, which are rapidly evolving. The Mediterranean is therefore an ideal site to examine, in order to better understand a number of key oceanographic phenomena. This is especially true of the Ligurian Sea where, due to its geology, oceanic conditions are found close to the coast. As such, 30 years ago, an offshore time-series site provided a fresh impetus to a long history of marine biology research, which has generated a very important body of data and knowledge. This is the first volume, in a two-volume series, that summarizes this research. Across these two books, the reader will find 13 chapters that examine the geology, physics, chemistry and biology of the Ligurian Sea ? always with the goal of providing key elements of oceanography in a changing world.
Author: James G. Titus
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 216
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Book Description
Author:
Publisher:
ISBN:
Category : Law of the sea
Languages : en
Pages : 44
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Book Description
