Soyons solidaires des requins

SAN JOSÉ – Il a souvent été dit que nous en savions plus sur la Lune que sur les océans. Après tout, 12 personnes ont déjà marché sur la Lune alors que trois personnes seulement sont descendues dans les abysses océaniques. Il semble aujourd’hui que nous en savons moins sur les océans que nous le croyions – et que nous avons fait plus de mal que nous le pensions.

Une récente étude de chercheurs de l’université de la Colombie britannique démontre que les prises ont été largement sous-estimées depuis des années. Les données que révèle cette étude devraient retenir l’attention des organisations régionales de gestion de la pêche, qui surveillent la pêche commerciale en haute mer, et des organisations qui veillent au respect de la Convention sur la conservation des espèces migratrices appartenant à la faune sauvage des Nations unies (CMS), qui porte sur les espèces migratrices menacées.

Selon la CMS, ou Convention de Bonn, les espèces nécessitant les mesures de protection les plus strictes – elles figurent à l’annexe 1 de la CMS – comprennent notamment le grand requin blanc, cinq espèces de poisson-scie, et onze espèces de raies. Les réunions de la CMS sur les espèces migratrices de requins, qui se dérouleront ce mois-ci à San José, Costa Rica, présentent une occasion importante de développer des réglementations garantissant la conservation et l’exploitation durable de ces espèces, de façon à ce qu’elles puissent continuer à remplir leur rôle écologique crucial de prédateur au sommet de la chaîne alimentaire.

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