Fish Reproductive Biology

Fish Reproductive Biology

Author: Tore Jakobsen

Publisher: John Wiley & Sons

Published: 2016-01-22

Total Pages: 488

ISBN-13: 1118752724

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Fish recruitment is a key process for maintaining sustainable fish populations. In the marine environment, fish recruitment is carried out in many different ways, all of which have different life history strategies. The objective of this book is to argue for greater linkages between basic and applied research on fisheries recruitment, and assessment and management of exploited fish stocks. Following an introductory chapter, this second edition of Fish Reproductive Biology is organized into 3 main sections: Biology, Population Dynamics and Recruitment Information Critical to Successful Assessment and Management Incorporation of Reproductive Biology and Recruitment Considerations into Management Advice and Strategies The authors collectively bring a wide range of diverse experience in areas of reproductive biology, fisheries oceanography, stock assessment, and management. Fully updated throughout, the book will be of great interest to a wide audience. It is useful as a textbook in graduate and undergraduate courses in fisheries biology, fisheries science, and fisheries resource management and will provide vital information for fish biologists, fisheries scientists and managers.


Guidelines for the Routine Collection of Capture Fishery Data

Guidelines for the Routine Collection of Capture Fishery Data

Author: Food and Agriculture Organization of the United Nations

Publisher: Food & Agriculture Org.

Published: 1999

Total Pages: 128

ISBN-13: 9789251043042

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"These guidelines aim to help those who design routine data collection programmes, focusing on the relationship between typical questions asked by policy-makers and managers, and the data required for providing reliable answers. Fisheries policy and management objectives, particularly under the precautionary approach, need to be based upon analyses of reliable data. Data are needed to make rational decisions, evaluate the fisheries performance in relation to management activities and fulfil regional requirements. These objectives are achieved using fishery performance indicators. Indicators are used to measure the state of the resource, the performance of fishing controls, economic efficiency, socio-economic performance and social continuity. The primary factor in choosing what data to collect is the link between the necessary operational, biological, economic and socio-cultural indicators and their associated variables. The way in which different data variables are collected needs tobe tailored to the structure of the fishery. The strategy will be strongly influenced by the budget and personnel available, and the degree to which fishers and others co-operate. The programme must identify which variables should be collected through complete enumeration and which can be sampled. Collection methods are influenced by the variable itself, the strategy, collection point and the skill of the enumerator. Once collected, fishery data must be stored securely, but made easily available for analysis, which is achieved through a computer-based data management system, following the basic data processing principles. The implementation of a data collection programme should follow a normal project cycle, developing a new legal and institutional framework as appropriate"--Abstract.


Report of the Expert Consultation on the Development of International Guidelines for Ecolabelling of Fish and Fisheries Products from Inland Capture Fisheries

Report of the Expert Consultation on the Development of International Guidelines for Ecolabelling of Fish and Fisheries Products from Inland Capture Fisheries

Author:

Publisher: Food & Agriculture Org.

Published: 2006

Total Pages: 40

ISBN-13: 9789251055847

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Aquaculture was excluded from the scope of the guidelines. The Expert Consultation recognized that most of the provisions on procedural and institutional aspects of standard setting, accreditation and certification applied equally to both marine and inland capture fisheries. However, there were some instances where the specific characteristics of inland capture fisheries including culture-based and enhanced fisheries needed to be reflected. Cases in point were the addition of hatchery managers among the interested parties in standard setting or the inclusion of the production of stocking material in the certification of a fishery.


Review of the State of World Marine Fishery Resources

Review of the State of World Marine Fishery Resources

Author: Marine Resources Service (United Nations)

Publisher: Food & Agriculture Org.

Published: 2005

Total Pages: 234

ISBN-13: 9789251052679

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This publication updates the regular reviews of the state of the world's marine fishery resources, based mainly on official catch statistics throughout 2002 and relevant stock assessment and other complementary information available until 2004. It considers the global situation and major trends of world marine capture fish production, with detailed information for each FAO statistical area about catches and current state of exploitation, major trends and developments and stock assessment work undertaken in support of fisheries management. Other issues covered include: tunas and tuna-like species resources, world squid resources, deepwater fisheries, and long-term climate variability.


Biological Invasions in Changing Ecosystems

Biological Invasions in Changing Ecosystems

Author: João Canning-Clode

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2015-01-01

Total Pages: 488

ISBN-13: 3110438666

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When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called ‘invasive species’ may establish, spread and ecologically alter the invaded community. Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss. In this book, more than 50 worldwide invasion scientists cover our current understanding of biological invasions, its impacts, patterns and mechanisms in both aquatic and terrestrial systems.