Bioaccumulation Des Polychlorobiphényles Chez Deux Poissons Du Rhône PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Bioaccumulation Des Polychlorobiphényles Chez Deux Poissons Du Rhône PDF full book. Access full book title Bioaccumulation Des Polychlorobiphényles Chez Deux Poissons Du Rhône by Marie Vieille-Blanchard. Download full books in PDF and EPUB format.
Author: Marie Vieille-Blanchard Publisher: Omniscriptum ISBN: 9786131567254 Category : Languages : fr Pages : 144
Book Description
Le fleuve Rh ne subit actuellement une forte pollution aux PCB, compos s d'origine anthropique interdits en France depuis 1987. Les tudes mises en place de fa on mieux comprendre et appr hender cette nouvelle pollution passent par l' tude du milieu, des organismes pr sents, des PCB, de leurs transferts via l'eau et les s diments aux premiers maillons de la cha ne alimentaire. Nous avons d crit les modes alimentaires de deux esp ces de poissons tr s pr sents dans le Rh ne: la br me et le barbeau. Cela repr sente une tape dans la r alisation d'un mod le de bioaccumulation des PCB travers les r seaux trophiques impliquant ces esp ces. Ainsi, on pourrait am liorer la compr hension des processus de distribution des PCB dans le Rh ne et pr voir l' volution de la contamination. La mod lisation de la pollution aux PCB implique de r aliser un tat de connaissance de la contamination des poissons dans le temps et l'espace mais aussi par rapport leurs r gimes alimentaires (omnivores et carnassiers). Les profils de contamination sont peu diff rents qu'il y a dix ans mais en concentrations plus importantes avec un site plus impact l'aval d'une usine.
Author: Marie Vieille-Blanchard Publisher: Omniscriptum ISBN: 9786131567254 Category : Languages : fr Pages : 144
Book Description
Le fleuve Rh ne subit actuellement une forte pollution aux PCB, compos s d'origine anthropique interdits en France depuis 1987. Les tudes mises en place de fa on mieux comprendre et appr hender cette nouvelle pollution passent par l' tude du milieu, des organismes pr sents, des PCB, de leurs transferts via l'eau et les s diments aux premiers maillons de la cha ne alimentaire. Nous avons d crit les modes alimentaires de deux esp ces de poissons tr s pr sents dans le Rh ne: la br me et le barbeau. Cela repr sente une tape dans la r alisation d'un mod le de bioaccumulation des PCB travers les r seaux trophiques impliquant ces esp ces. Ainsi, on pourrait am liorer la compr hension des processus de distribution des PCB dans le Rh ne et pr voir l' volution de la contamination. La mod lisation de la pollution aux PCB implique de r aliser un tat de connaissance de la contamination des poissons dans le temps et l'espace mais aussi par rapport leurs r gimes alimentaires (omnivores et carnassiers). Les profils de contamination sont peu diff rents qu'il y a dix ans mais en concentrations plus importantes avec un site plus impact l'aval d'une usine.
Author: Nicolas Flipo Publisher: Springer Nature ISBN: 3030542602 Category : Science Languages : en Pages : 430
Book Description
This open access book reviews the water-agro-food and socio-eco-system of the Seine River basin (76,000 km2), and offers a historical perspective on the river’s long-term contamination. The Seine basin is inhabited by circa 17 million people and is impacted by intensive agricultural practices and industrial activities. These pressures have gradually affected its hydrological, chemical and ecological functioning, leading to a maximum chemical degradation between the 1960s and the 1990s. Over the last three decades, while major water-quality improvements have been observed, new issues (e.g. endocrine disruptors, microplastics) have also emerged. The state of the Seine River network, from the headwaters to estuary, is increasingly controlled by the balance between pressures and social responses. This socio-ecosystem provides a unique example of the functioning of a territory under heavy anthropogenic pressure during the Anthropocene era. The achievements made were possible due to the long-term PIREN Seine research program, established in 1989 and today part of the French socio-ecological research network “Zones Ateliers”, itself part of the international Long-term Socio-economic and Ecological Research Network (LTSER). Written by experts in the field, the book provides an introduction to the water budget and the territorial metabolism of the Seine basin, and studies the trajectories and impact of various pollutants in the Seine River. It offers insights into the ecological functioning, the integration of agricultural practices, the analysis of aquatic organic matter, and the evolution of fish assemblages in the Seine basin, and also presents research perspectives and approaches to improve the water quality of the Seine River. Given its scope, it will appeal to environmental managers, scientists and policymakers interested in the long-term contamination of the Seine River.
Author: S. Cataudella Publisher: Food & Agriculture Organization of the UN (FAO) ISBN: Category : Technology & Engineering Languages : en Pages : 294
Book Description
"The Mediterranean region hosts around 400 coastal lagoons, covering a surface of over 641 000 ha differing in both their typology and use. Fisheries and various forms of aquaculture have been traditionally carried out in Mediterranean coastal lagoons since ancient times and are part of the cultural heritage of the region. Traditional lagoon management linked to extensive aquaculture and fish harvesting has certainly contributed, over time, to preserve these peculiar ecosystems, although much of the coastal lagoon areas have progressively disappeared due to land reclamation and other uses. Recently, coastal lagoons have become a relevant environmental concern: land claiming, pollution and the lack of management, among other factors, have strongly modified both the structure and functioning of these sensitive coastal ecosystems. In particular, the management of traditional aquaculture and capture fisheries activities has been identified as the main instrument to maintain lagoons' ecological features and to prevent the degradation of their sensitive habitats, both from an environmental and socioeconomic point of view. To guarantee the sustainability of aquaculture and capture fisheries in lagoons, proper management plans should be established so as to ensure the preservation of both biodiversity and local knowledge. This should also be considered as a fundamental pillar for any programme aiming at the preservation and restoration of lagoons' environment."--Publisher's description.
Author: Vladimir Pešić Publisher: Springer Nature ISBN: 3030864782 Category : Science Languages : en Pages : 449
Book Description
The small water bodies such as headwater streams, springs, ditches, small lakes, and ponds are critical to maintaining freshwater biodiversity. This is especially true for Dinaric karst, where they are often the only water bodies present. However, despite their importance, they remain widely overlooked and excluded from government policies like the EU Water Framework Directive. This book includes information on different aspects of these essential but still neglected habitats. This book intends to be of interest to a wide range of audiences, from researchers and conservationists to the public and decision-makers.
Author: R. S. K. Barnes Publisher: John Wiley & Sons ISBN: 1444312332 Category : Science Languages : en Pages : 507
Book Description
The majority of undergraduate texts in invertebrate zoology (of which there are many) fall into one of two categories. They either offer a systematic treatment of groups of animals phylum by phylum, or adopt a functional approach to the various anatomical and physiological systems of the better known species. The Invertebrates is the first and only textbook to integrate both approaches and thus meet the modern teaching needs of the subject. This is the only invertebrate textbook to integrate systematics and functional approaches. The molecular systematics sections have been completely updated for the new edition. Strong evolutionary theme which reflects the importance of molecular techniques throughout. Distills the essential characteristics of each invertebrate group and lists diagnostic features to allow comparisons between phyla. New phyla have been added for the new edition. Stresses comparisons in physiology, reproduction and development. Improved layout and illustration quality. Second edition has sold 14000 copies. Nature of the first edition: 'Students will like this book. It deserves to succeed.'
Author: Marie Vieille-Blanchard
Author: Marie Vieille-Blanchard
Author: Nicolas Flipo
Author: S. Cataudella
Author: Paolo Casale
Author: Jerome O. Nriagu
Author: Andrew P. Nimmo
Author: Evald Ojaveer
Author: Vladimir Pešić
Author: Joel Frados
Author: R. S. K. Barnes