Notice
EN-6. Incidental catches and biodiversity: do the fishermen always catch the sought species ?
- document 1 document 2 document 3
- niveau 1 niveau 2 niveau 3
Descriptif
Laurent Dagorn presents the problem of the incidental catches in fishery, that is, what is taken off from the marine environment, but which is not sought by the fishermen. He defines the terms of this issue, then he shows some actions which should enable to increase the fishing efficiency.
Dans la même collection
-
EN-8. The ecosystemic approach to fisherie : how to reconcile preservation and exploitation of mari…
CURY Philippe
Philippe Cury presents the basis of the ecosystem approach to fisheries, which enables to maintain the biodiversity, the catches and the jobs. He comes back to the main steps which punctuated the
-
EN-10. International law of sea and marine resources: what are the current issues ?
GALLETTI Florence
Florence Galletti proposes an overview of the law of sea, and comes back to the main associated issues. She provides several essential definitions to understand this field, comes back to its great
-
EN-11. The economics of marine resources and biodiversity
CHABOUD Christian
Christian Chaboud presents some models and issues related to the economic approach of fisheries and marine resources. He especially comes back to the Gordon Schaefer model, and to the economic
-
EN-9. Management of an emblematic species: the bluefin tuna
FROMENTIN Jean-Marc
With Jean-Marc Fromentin, we discover the bluefin tuna. It is fished since Antiquity, but it is subjected to strong pressure for almost three decades, which is responsible for a large decline of the
-
EN-1. Observation of oceanic marine ecosystems
The marine environment is uneasy of access, so Pierre Chavance presents some current ways to better know the state of the marine biodiversity and resources. He focuses on the accompanying and
-
EN-7. Feeding people and birds: interactions between fishermen and marine predators
BERTRAND Sophie
Sophie Bertrand presents the main forms of interaction between fishermen and birds as part of the practice of fishing: accidental catches, competition, or other unexpected effects. In order to limit
-
EN-4. Coastal lagoons: importance for the coastal productivity of oceans
DARNAUDE Audrey
Audrey Darnaude shows us the role and the importance of the lagoons for the functioning of the biodiversity. Thanks to examples in the Lion Gulf, she explains that the coastal productivity is closely
-
EN-2. Marine connectivity and impact on marine biodiversity
BONHOMMEAU Sylvain
Sylvain Bonhommeau highlights the movements of many animal populations of the oceans throughout their life cycle, and so he shows the issue of the marine connectivity. The species and their movements
-
EN-5. Overfishing and the impacts on biodiversity and on the functioning of ecosystems
CURY Philippe
Philippe Cury explains how the overfishing affects the marine food webs, and he highlights some ecological consequences of this practice, like the jellyfishes proliferation or the disappearance of the
-
Oceans: introduction to biodiversity and resources
In this second part, discover the biodiversity of the oceans, from the coral reefs to the coastal lagoons. This biodiversity, of which the knowledge is still partial, is the subject of great
-
EN-3. Environment complexity and productivity of the coral reefs
MOUILLOT David
David Mouillot proposes an analysis of the coral reefs in terms of biodiversity and productivity. He tries to explain the importance of the coral environments for the development of wide food webs,
-
2. Connectivité marine et impact sur la biodiversité marine
BONHOMMEAU Sylvain
Sylvain Bonhommeau met en évidence les mouvements de nombreuses populations animales des océans tout au long de leur cycle de vie et, sur cette base, pose l'enjeu de la connectivité marine. Un enjeu
Avec les mêmes intervenants et intervenantes
-
6. Prises accessoires et biodiversité : les pêcheurs capturent-ils toujours les espèces convoitées ?
DAGORN Laurent
Laurent Dagorn pose le problème des prises accessoires dans le domaine de la pêche. Ces prises correspondent à ce qui est prélevé au milieu marin mais non recherché par les pêcheurs. Après avoir