10 research outputs found
Widespread Use of Migratory Megafauna for Aquatic Wild Meat in the Tropics and Subtropics
Wild animals are captured or taken opportunistically, and the meat, body parts, and/or eggs are consumed for local subsistence or used for traditional purposes to some extent across most of the world, particularly in the tropics and subtropics. The consumption of aquatic animals is widespread, in some places has been sustained for millennia, and can be an important source of nutrition, income, and cultural identity to communities. Yet, economic opportunities to exploit wildlife at higher levels have led to unsustainable exploitation of some species. In the literature, there has been limited focus on the exploitation of aquatic non-fish animals for food and other purposes. Understanding the scope and potential threat of aquatic wild meat exploitation is an important first step toward appropriate inclusion on the international policy and conservation management agenda. Here, we conduct a review of the literature, and present an overview of the contemporary use of aquatic megafauna (cetaceans, sirenians, chelonians, and crocodylians) in the global tropics and subtropics, for species listed on the Appendices of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). We find that consumption of aquatic megafauna is widespread in coastal regions, although to varying degrees, and that some species are likely to be at risk from overexploitation, particularly riverine megafauna. Finally, we provide recommendations for CMS in the context of the mandate of the Aquatic Wild Meat Working Group.Additional co-authors: Jeffrey W. Lang, Sigrid LĂŒber, Charlie Manolis, Grahame J. W. Webb and Lindsay Porte
Widespread use of migratory megafauna for aquatic wild meat in the tropics and subtropics
Wild animals are captured or taken opportunistically, and the meat, body parts, and/or eggs are consumed for local subsistence or used for traditional purposes to some extent across most of the world, particularly in the tropics and subtropics. The consumption of aquatic animals is widespread, in some places has been sustained for millennia, and can be an important source of nutrition, income, and cultural identity to communities. Yet, economic opportunities to exploit wildlife at higher levels have led to unsustainable exploitation of some species. In the literature, there has been limited focus on the exploitation of aquatic non-fish animals for food and other purposes. Understanding the scope and potential threat of aquatic wild meat exploitation is an important first step toward appropriate inclusion on the international policy and conservation management agenda. Here, we conduct a review of the literature, and present an overview of the contemporary use of aquatic megafauna (cetaceans, sirenians, chelonians, and crocodylians) in the global tropics and subtropics, for species listed on the Appendices of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). We find that consumption of aquatic megafauna is widespread in coastal regions, although to varying degrees, and that some species are likely to be at risk from overexploitation, particularly riverine megafauna. Finally, we provide recommendations for CMS in the context of the mandate of the Aquatic Wild Meat Working Group
Presence of fin whales (Balaenoptera physalus) in Mejillones Bay, a major seaport area in northern Chile
Biodiversité et habitats: Données des campagnes océanographiques dans la région du Courant des Canaries (CCLME)
Cette prĂ©sentation rĂ©sume les donnĂ©es obtenues au cours des 12 campagnes espagnoles et norvĂ©giennes dĂ©veloppĂ©es sur le plateau et le talus continental, entre les 20 et 2000 m de profondeur, dans la rĂ©gion CCLME, qui pourront ĂȘtre incorporĂ©es au SIG rĂ©gional, dĂšs la publication des rĂ©sultats.
Les bases de donnĂ©es disponibles incluent des informations faunistiques et paramĂštres environnementaux pris en 1350 stations de chalutage de fonds, 24 pĂ©lagiques et 449 Ă©chantillonnages du plancton, 209 dragages du benthos, 1269 stations de CTD et 966 heures (11,398 km) dâobservations de mammifĂšres et oiseaux marins.
Lâincorporation de ces informations au SIG permettra visualiser les cartes de distribution Ă lâĂ©chelle rĂ©gionale des types de sĂ©diments et variables ocĂ©anographiques, des espĂšces demersales, benthiques et pĂ©lagiques, cĂ©tacĂ©s et oiseaux marins, (incluant celles vulnĂ©rables, en liste rouge ou endĂ©miques), et leurs densitĂ©s et biomasses. Comme produit final on aboutira Ă une vision globale de la biodiversitĂ© et des facteurs affectant sa distribution en Afrique noroccidental, ainsi que Ă la caractĂ©risation et localisation des sites dâintĂ©rĂȘt Ă©cologique ou biologique, âhot-spotsâ de la biodiversitĂ©, Ă©cosystĂšmes vulnĂ©rables et aires marines protĂ©gĂ©es. Certains Ă©cosystĂšmes ont dĂ©jĂ Ă©tĂ© localisĂ©s dans le talus de la Mauritanie (gĂ©ant rĂ©cif corallien, canyons et montagne sous-marins) et du Maroc (canyon dâAgadir, communautĂ©s des grandes Ă©ponges et gorgonaires), ainsi que dans le plateau des Ăźles de Cap Vert (fonds dâĂ©ponges, gorgonies et dâautres suspensivores). Une population de baleines jubartes provenant de l'hĂ©misphĂšre sud a Ă©tĂ© dĂ©couverte d'occuper le plateau continental entre Conakry et la pĂ©ninsule du Cap-Vert.
Tandis que les analyses se dĂ©veloppent et le processus dâidentification taxonomique se finalise, le SIG pourrait inclure des informations dĂ©jĂ disponibles sur la localisation des mangroves, des 20 AMP et des 40 sites cĂŽtiers dâintĂ©rĂȘt Ă©cologique; une rĂ©vision exhaustive des contenus des projets internationaux dĂ©veloppĂ©s dans la rĂ©gion (SIAP, BAGIS, ODINAFRICA) et de la bibliographie existante (Maurin, 1968; Bonnet et al., 1971; Domain, 1980; Lelouf, 1993, entre autres) permettrait complĂ©ter aussi la cartographie bionomique.FAO, NORA
New Evidence for a South Atlantic Stock of Humpback Whales Wintering on the Northwest African Continental Shelf
Population structure of nuclear and mitochondrial DNA variation among South American Burmeisterâs porpoises (Phocoena spinipinnis)
Data from: Genetic variation in blue whales in the eastern Pacific: implication for taxonomy and use of common wintering grounds
Many aspects of blue whale biology are poorly understood. Some of the gaps in our knowledge, such as those regarding their basic taxonomy and seasonal movements, directly affect our ability to monitor and manage blue whale populations. As a step towards filling in some of these gaps, microsatellite and mtDNA sequence analyses were conducted on blue whale samples from the Southern Hemisphere, the eastern tropical Pacific (ETP), and the northeast Pacific. The results indicate that the ETP is differentially used by blue whales from the northern and southern eastern Pacific, with the former showing stronger affinity to the region off Central America known as the Costa Rican Dome, and the latter favoring the waters of Peru and Ecuador. Although the pattern of genetic variation throughout the Southern Hemisphere is compatible with the recently proposed subspecies status of Chilean blue whales, some discrepancies remain between catch lengths and lengths from aerial photography, and not all blue whales in Chilean waters can be assumed to be of this type. Also, the range of the proposed Chilean subspecies, which extends to the Galapagos region of the ETP, at least seasonally, perhaps should include the Costa Rican Dome and the eastern North Pacific as well
William Fergus Perrin - a marine mammalogist âfor all seasonsâ : 20 August 1938 â 11 July 2022
This is an obituary for William F. Perrin
Widespread Use of Migratory Megafauna for Aquatic Wild Meat in the Tropics and Subtropics
Wild animals are captured or taken opportunistically, and the meat, body parts, and/or eggs are consumed for local subsistence or used for traditional purposes to some extent across most of the world, particularly in the tropics and subtropics. The consumption of aquatic animals is widespread, in some places has been sustained for millennia, and can be an important source of nutrition, income, and cultural identity to communities. Yet, economic opportunities to exploit wildlife at higher levels have led to unsustainable exploitation of some species. In the literature, there has been limited focus on the exploitation of aquatic non-fish animals for food and other purposes. Understanding the scope and potential threat of aquatic wild meat exploitation is an important first step toward appropriate inclusion on the international policy and conservation management agenda. Here, we conduct a review of the literature, and present an overview of the contemporary use of aquatic megafauna (cetaceans, sirenians, chelonians, and crocodylians) in the global tropics and subtropics, for species listed on the Appendices of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). We find that consumption of aquatic megafauna is widespread in coastal regions, although to varying degrees, and that some species are likely to be at risk from overexploitation, particularly riverine megafauna. Finally, we provide recommendations for CMS in the context of the mandate of the Aquatic Wild Meat Working Group