Information systems on tropical fishing

• Direct observation systems using scientific methods per se

• Statistical systems :
Data treatment systems for artisanal fisheries
Data treatment systems for industrial fisheries
The case of systems on offshore industrial fisheries

• Observatories and information centres

ecosystemes

Only the conservation of marine ecosystems and their productive capabilities can allow for the sustainable exploitation of their living resources. But the pursuit of those objectives of sustainable exploitation and conservation of ecosystems requires decision-making and therefore information. However, developing information in marine environments requires a particular effort.
 Indeed, at the heart of the aquatic world, the changes and sometimes even the damages affecting ecosystems are generally not immediately apparent to the human eye. Moreover, due to the extensive nature of the ‘common basin’ which constitutes seas and oceans, the stakeholders who voyage upon them and exploit their resources are varied, numerous and often far apart, making it unlikely for them to perceive the consequences of their activities on resources. It is understandable therefore that the acquisition and synthesis of data, as a sort of “ magnifying glass” allowing society to appreciate the state of the marine ecosystem and its resources (in particular the damages inflicted by anthropogenic stresses), takes on considerable importance, just as important, moreover, as that of the presentation  and diffusion of the information once produced. These questions have been the driving force behind the efforts of biologists, technicians and fishing administrations over the last few decades. In recent history, these efforts have led to to mulitiple and quite diversified actions for the collecting, treating, storing and diffusion of statistical information on fishing. Although certain complementary aspects between actions may be seen, this does not mean that the effort today is entirely coherent, coordinated and in harmony. Still, it is of interest to outline the existing situation. 
As far as the production of information is concerned, existing actions can be classified into large functional groups:
– Data collecting systems ;
– Primary management systems (raw storage) and data treatment ;
– Secondary management systems (aggregation) and (re)treatment of data, with emphasis on synthesis, publication and diffusion of information: observatories and information centres.

Generally, systems taking on  the first two functions are, for technical reasons, very closely linked, often in terms of “observation” or “follow-up” systems. This first level ensures the basis of the information system on the oceans and their resources, and deserves the name of “basic follow-up system”. 
The configuration of these systems is closely linked to the datum to be collected and henceto the process or domain being observed. It is for this reason that several types exist, as follows.

consommation de poissons
consommation de poissons