Download or read book PECHERIES ET CHANGEMENT ENVIRONNEMENTAL A LONG TERME EN MER NOIRE written by Gueorgui Daskalov and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE CHANGEMENT DES PECHERIES ET DE L'ENVIRONNEMENT EN MER NOIRE EST EXPLORE A PARTIR DE SERIES DE DONNEES PLURIANNUELLES. DES ESTIMATIONS DE L'ABONDANCE ET DE LA MORTALITE PAR PECHE DES ESPECES COMMERCIALES IMPORTANTES SONT OBTENUES A L'AIDE DE L'ANALYSE DES COHORTES CALIBREE PAR DES INDICES D'ABONDANCE INDEPENDANTS. LES SERIES DE PARAMETRES HALIEUTIQUES PRODUITS PERMETTENT D'ANALYSER LES EFFETS DE LA PECHE ET DE L'ENVIRONNEMENT SUR LA DYNAMIQUE DES STOCKS. LES EFFETS DU CHANGEMENT DE BASSE FREQUENCE (TENDANCES, OSCILLATIONS QUASI-PERIODIQUES) SONT ETUDIES. LES FLUCTUATIONS DU MILIEU PHYSIQUE SONT RECONNUES COMME JOUANT UN ROLE IMPORTANT POUR LES VARIATIONS A LONG TERME DES STOCKS ET AFFECTANT CONSIDERABLEMENT TOUS LES NIVEAUX DE L'ECOSYSTEME. LA REPONSE DES STOCKS AU CHANGEMENT ENVIRONNEMENTAL EST MODELISEE A L'AIDE DES MODELES ADDITIFS GENERALISES (GAM). A PART LES SIMILARITES ET LES DIFFERENCES ENTRE LES ESPECES ETUDIEES (DEPENDANCE DE LA CIRCULATION A GRANDE ECHELLE ET DEPENDANCE DE LA DENSITE PRONONCEES DU RECRUTEMENT DES POISSONS SE REPRODUISANT AU LARGE : SPRAT, CHINCHARD ; DEPENDANCE DES APPORTS FLUVIAUX ET FORTE RELATION STOCK-RECRUTEMENT DES ESPECES SE REPRODUISANT DE PREFERENCE SUR LE PLATEAU CONTINENTAL : ANCHOIS, MERLAN) LA FORTE SENSIBILITE DES POISSONS EXPLOITES FACE AU CHANGEMENT ENVIRONNEMENTAL EST MISE EN EVIDENCE. LA PERIODE DEPUIS LES ANNEES 70 EST MARQUEE PAR L'ACCROISSEMENT CONTINU DE L'IMPACT ANTHROPIQUE QUI A INFLUENCE L'ENSEMBLE DE L'ECOSYSTEME Y COMPRIS LES POISSONS EXPLOITES. LA PECHE EST LE FACTEUR ANTHROPIQUE LE PLUS IMPORTANT AGISSANT DIRECTEMENT SUR LES STOCKS. LES MECANISMES D'INFLUENCE DE L'EUTROPHISATION ANTHROPIQUE NE SONT PAS SUFFISAMMENT CLAIRES BIEN QUE IL Y AIT DES INDICATIONS D'EFFETS NEGATIFS SUR LES POISSONS DEMERSAUX ET CERTAINES POPULATIONS PELAGIQUES HABITANT EN PROFONDEUR. LA DEGRADATION GENERALE DU MILIEU MARIN SUITE AUX ACTIVITES HUMAINES (Y COMPRIS L'INTRODUCTION DES ESPECES EXOTIQUES) TEND A AGIR SUR LES STOCKS EN SYNERGIE AVEC LES FACTEURS PHYSIQUES ET BIOTIQUES ET LA PECHE. LES EFFETS ANTHROPIQUES NEGATIFS DEVIENNENT PARTICULIEREMENT VIGOUREUX PENDANT LES PERIODES DE BAISSE DES STOCKS INDUITE PROBABLEMENT PAR LES FLUCTUATIONS CLIMATIQUES.
Download or read book Etudes sur les peches et l environnement dans le bassin de la Mer Noire written by and published by Food & Agriculture Org.. This book was released on 1994 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the State of World Marine Fishery Resources written by Marine Resources Service (United Nations) and published by Food & Agriculture Org.. This book was released on 2005 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book FAO Fisheries Technical Paper written by and published by . This book was released on 2005 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Stock Assessments and Predictions written by Øyvind Ulltang and published by . This book was released on 2003 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mediterranean region under climate change written by Collectif and published by IRD Éditions. This book was released on 2018-11-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines.
Download or read book Review of the State of World Marine Fishery Resources written by Food and Agriculture Organization of the United Nations. Marine Resources Service and published by Food & Agriculture Org.. This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides a review, commentary and tabulations of the main trends that have occurred in exploitation of fisheries resources since the 1970s, largely as they are reflected in the FAO database on fishery landings, supplemented with selected information from the fishery literature. Reviews were prepared separately for the 15 main areas into which FAO divides the world's oceans for statistical purposes. They are then compared from a global perspective to reveal relative trends by species and areas, which are highlighted. Several special topics are reviewed, including tuna and tuna-like species, whales and dolphins, and environmental issues in fisheries.
Download or read book Philosophy manual a South South perspective written by Chanthalangsy, Phinith and published by UNESCO Publishing. This book was released on 2014-12-31 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The GEO Handbook on Biodiversity Observation Networks written by Michele Walters and published by Springer. This book was released on 2016-11-25 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity observation systems are almost everywhere inadequate to meet local, national and international (treaty) obligations. As a result of alarmingly rapid declines in biodiversity in the modern era, there is a strong, worldwide desire to upgrade our monitoring systems, but little clarity on what is actually needed and how it can be assembled from the elements which are already present. This book intends to provide practical guidance to broadly-defined biodiversity observation networks at all scales, but predominantly the national scale and higher. This is a practical how-to book with substantial policy relevance. It will mostly be used by technical specialists with a responsibility for biodiversity monitoring to establish and refine their systems. It is written at a technical level, but one that is not discipline-bound: it should be intelligible to anyone in the broad field with a tertiary education.
Download or read book Politics Property and Production in the West African Sahel written by Tor Arve Benjaminsen and published by Nordic Africa Institute. This book was released on 2001 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through a number of case studies from the West African Sahel, this book links and explores natural resources management from the perspectives of politics, property and production.
Download or read book Regional Conference on building a future for sustainable small scale fisheries in the Mediterranean and the Black Sea written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-31 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the report, the conference focused on the main challenges for the sustainable development of small-scale fisheries, including promoting political commitment and tailored strategies, raising awareness, and sharing knowledge.
Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
Download or read book written by and published by . This book was released on 1996 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Code of Practice for Metal Mines written by Canada. Environment Canada and published by . This book was released on 2009 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes operational activities and associated environmental concerns of this industrial sector. The document applies to the complete life cycle of mining, from exploration to mine closure, and environmental management practices are recommended to mitigate the identified environmental concerns. The recommended practices in the Code include the development and implementation of environmental management tools, the management of wastewater and mining wastes, and the prevention and control of environmental releases to air, water and land. The Code of Practice will be adopted by Environment Canada and others as a guidance document that recommends environmental protection practices for the mine life cycle. The Code applies specifically to metal mines but will provide useful guidance for all sectors of the mining industry.
Download or read book Aquaculture Development written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides annotations to the Principles of Article 9 of the Code of Conduct for Responsible Fisheries. These annotations are meant to serve as general guidance, and should be taken as suggestions or observations intended to assist those interested in identifying their own criteria and options for actions, as well as partners for collaboration, in support of sustainable aquaculture development.
Download or read book Studying Fossil Horses written by Véra Eisenmann and published by Brill Archive. This book was released on 1988 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reinventing Fisheries Management written by T.J. Pitcher and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Judged by a dismaying track record and a consequent downturn in the reputation of fisheries scientists, fisheries management is certainly a candidate for calls for reinvention, with many of the world leaders in this area holding the view that no fishery has ever been properly understood or managed. With fisheries science in a state of flux, this extremely important book seeks a new paradigm that will place this flux of ideas in perspective and help us to choose those that will make fisheries management work. The book was planned at a symposium of over 100 fishery researchers at the Fisheries Centre, University of British Columbia, Vancouver, Canada and is organized into five parts: Why does Fisheries Science Need Reinventing?; New Policies; The Role of the Social Sciences; Ecology; Modelling. Carefully integrated and edited by three of the world's leading fishery scientists, this stimulating book should find a place on the shelves of all fishery scientists throughout the world. It will be an invaluable reference source to those studying fish biology, fisheries and oceanography and all those involved in fisheries policy decisions in government and university research establishments.
