Fish Diseases (2 Vols.)

Fish Diseases (2 Vols.) PDF

Author: Jorge Eiras

Publisher: CRC Press

Published: 2008-01-09

Total Pages: 1327

ISBN-13: 1482280485

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Diseases are a major threat to both wild and farmed fish. Pathogen-induced alterations in viability and growth of wild fish stocks can have implications on diversity and ecological status of aquatic ecosystems, as fish are main components of aquatic communities, and they can directly affect the exploitation of wild and farmed fish as a protein sour

Antarctic Fish and Fisheries

Antarctic Fish and Fisheries PDF

Author: K.-H. Kock

Publisher: Cambridge University Press

Published: 1992-09-10

Total Pages: 380

ISBN-13: 9780521362504

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Although Antarctic finfish have been exploited for more than two decades and many stocks now appear to be overfished, this is the first detailed account of this fishery. The book begins by giving a comprehensive description of Antarctic fish biology and ecology, the thorough understanding of which is a prerequisite to sound management of the fishery. Subsequent sections consider the course of finfish exploitation and the present state of exploited fish stocks in the Southern Ocean. The author concludes by proposing more effective management methods for the fish resources of the Southern Ocean in light of the Convention on the Conservation of Antarctic Marine Living Resources.

Invasive Alien Species

Invasive Alien Species PDF

Author: Michael R. Ielmini

Publisher: John Wiley & Sons

Published: 2021-04-21

Total Pages: 1488

ISBN-13: 1119607019

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Jedes Jahr breiten sich invasive gebietsfremde Arten in neue Ökosysteme aus. Die von den Eindringlingen verursachten Auswirkungen können sich in kürzester Zeit bemerkbar machen und verheerend sein. Das Thema der invasiven gebietsfremden Arten ist umfassend, komplex und auf verschiedenen Ebenen von globaler Bedeutung. Verschärft wird es durch die Globalisierung der Weltwirtschaft und den zunehmenden Handel, durch den die natürlichen Barrieren für den Transfer von Arten durchbrochen werden. Invasive gebietsfremde Arten bedrohen die weltweite Nahrungsmittelversorgung, die Qualität und Verfügbarkeit von Trinkwasser sowie die Stromproduktion und -versorgung. Zusammen mit den zusätzlichen Risiken durch den globalen Klimawandel ist die weltweite Homogenisierung von Pflanzen, Tieren und Mikroben ein wesentlicher Faktor für den sich verschlechternden Gesundheitszustand der Ökosysteme und die nachlassenden Ökosystemdienstleistungen überall auf der Welt. Um dieser Entwicklung entgegenzuwirken, besteht die dringende Notwendigkeit einer einheitlichen Ausrichtung von Regierungen, Kulturen und Programmen und einer besseren grenzüberschreitenden Koordination. Nur so lassen sich die vielfältigen Bedrohungen durch invasive gebietsfremde Arten für die Umwelt, die Wirtschaft und die Gesundheit von Pflanzen und Tieren sowie insbesondere die menschliche Gesundheit effektiv bekämpfen. Dieses vierbändige Werk ist das erste, das einen umfassenden Satz nützlicher Materialien zu den zentralen Themen bereitstellt, um die gesamte globale Bedrohung durch invasive gebietsfremde Arten sowie die vielfältigen Probleme in verschiedenen Teilen der Welt deutlich zu machen, und es enthält Material, in dem potenziell replizierbare Lösungen zur Überwindung dieser Bedrohungen aufgezeigt werden. Das Werk betont die Bedrohung durch invasive gebietsfremde Arten auch im Sinne eines globalen ?Aufrufs zum Handeln?. Invasive Arten kennen keine Grenzen. Daher hoffen wir, dass wir durch die Zusammenstellung von Material, das unterschiedliche wissenschaftliche und gesellschaftliche Standpunkte aus aller Welt berücksichtigt, sowie durch die Vermittlung von Erkenntnissen und Beispielen zu einer Vielzahl damit zusammenhängender Themen das globale Bewusstsein stärken und einheitliche nationale Reaktionen auf die Bedrohung durch invasive gebietsfremde Arten fördern können.

Fish Diseases and Disorders

Fish Diseases and Disorders PDF

Author: P. T. K. Woo

Publisher: CABI

Published: 2006-01-01

Total Pages: 801

ISBN-13: 0851990150

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Written by experts actively working in the area, this book provides a review of the major diseases of fish caused by protozoan and metazoan parasites. The new edition has been thoroughly updated since publication of the first edition in 1995. It covers recent advances in the understanding of fish diseases including the improvement of diagnostic techniques and understanding of phylogenetic relationships stemming from the application of molecular techniques. The book also contains more detailed information on pathogens that cause amoebiasis.

Incidental catch of vulnerable species in Mediterranean and Black Sea fisheries – A review

Incidental catch of vulnerable species in Mediterranean and Black Sea fisheries – A review PDF

Author: Carpentieri, P., Nastasi, A., Sessa, M., Srour, A. (eds.)

Publisher: Food & Agriculture Org.

Published: 2021-06-28

Total Pages: 339

ISBN-13: 9251346313

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Bycatch – a term widely used to refer to part of the catch unintentionally caught during a fishing operation, in addition to target species, and consisting of the discards and incidental catch of vulnerable species – is considered one of the most important threats to the profitability and sustainability of fisheries, as well as to the conservation of the marine environment and ecosystems. Understanding the bycatch issue and adopting effective measures in order to reduce bycatch rates are essential steps towards minimizing the impacts on vulnerable species and ensuring both a sustainable fisheries sector and healthy seas. In the Mediterranean and the Black Sea, the incidental catch of vulnerable species – namely seabirds, sea turtles, elasmobranchs, marine mammals and macrobenthic invertebrates – represents one of several challenges for the industrial, semi-industrial and small-scale fisheries that coexist in the region, as well as for the diverse and sensitive ecosystems impacted. Typically, data on this issue have been collected in an opportunistic manner and in ways that make comparisons difficult. The annual absolute values of incidental catch of vulnerable species are not available: studies cover only a small portion of the total fishing activity and often present important knowledge gaps for many types of fishing gear, countries and/or subregions, as well as on temporal scales, for example, to establish reliable baselines. The result is that little is known of the scope of the problem, despite incidental catch being a significant pressure on the populations of vulnerable species, as well as a concern for fishers.This regional review is an attempt to compile, in one single document, all available data and historical records on the incidental catch of vulnerable species in the Mediterranean and Black Sea fisheries, obtained from existing literature, databases and other grey sources, and collated in a standardized and comparable way. The main objective is to provide comprehensive baseline information, earmark the main data gaps, as well as identify the most impacting types of fishing gear by taxonomic group. This work is a reminder of the importance of standardized data collection and the need to have baseline information in order to support decision-making in the identification of appropriate bycatch mitigation techniques, thus enabling analysis of their effectiveness and comparison over time and space, as well as facilitating the implementation of relevant conservation and/or management measures at the national, subregional and regional levels.

Fishes in Lagoons and Estuaries in the Mediterranean 3B

Fishes in Lagoons and Estuaries in the Mediterranean 3B PDF

Author: Mohamed Hichem Kara

Publisher: John Wiley & Sons

Published: 2019-04-23

Total Pages: 306

ISBN-13: 1119618150

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Based on the most recent scientific data, and without neglecting historical publications, Fishes in Lagoons and Estuaries in the Mediterranean 3 comprehensively details Mediterranean lagoonal–marine migratory fish. It provides information regarding their systematics, ecobiology, ethology, genetics and their exploitation. This volume, third in a set of books on Mediterranean ichthyofauna, offers a synthesis of the knowledge acquired from 1890 to the present day for each of the 21 species most frequently found in Mediterranean lagoons and estuaries. These species are detailed across two volumes, 3A and 3B. The scientific data presented in this book concern their lagoon life as much as their marine life, and are therefore of particular interest for both the management of fish stocks and for the conservation of species. Designed to give rapid and comprehensive access to the body of knowledge on Mediterranean lagoonal and estuarine migratory fishes, this volume is for anyone involved in the use, management or protection of natural environments and their populations, including ecobiologists, geographers, engineers, teachers, students and researchers.