Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Re-assessment of the conservation status of the Atlantic humpback dolphin, Sousa teuszii (Kükenthal, 1892), using the IUCN Red List criteria
Collins, T. (2015). Re-assessment of the conservation status of the Atlantic humpback dolphin, Sousa teuszii (Kükenthal, 1892), using the IUCN Red List criteria, in: Jefferson, T.A. et al. Adv. Mar. Biol. 72: Humpback dolphins (Sousa spp.): Current status and conservation, Part 1. Advances in Marine Biology, 72: pp. 47-77. https://dx.doi.org/10.1016/bs.amb.2015.09.001
In: Jefferson, T.A.; Curry, B.E. (Ed.) (2015). Adv. Mar. Biol. 72: Humpback dolphins (Sousa spp.): Current status and conservation, Part 1. Advances in Marine Biology, 72. Academic Press: London. ISBN 978-0-12-803258-9. XXVIII, 266 pp.
In: Advances in Marine Biology. Academic Press: London, New York. ISSN 0065-2881; e-ISSN 2162-5875
Peer reviewed article  
Beschikbaar in  Auteur 
Trefwoorden
    Africa
    Coastal
    Dimensions > Depth > Water depth
    Ecology
    Nearshore
    Sea surface temperature
    Afrika [Marine Regions]
    Marien/Kust
Author keywords
    Atlantic Ocean; Group size; Marine ecoregion
Auteur  Top 
  • Collins, T.
Abstract
    The Atlantic humpback dolphin (Sousa teuszii) is an obligate shallow water dolphin that is endemic to the western coasts of Africa, ranging from Western Sahara to Angola. The species occurs exclusively in a limited number of near-shore habitats, a tendency that routinely exposes it to a suite of lethal and deleterious anthropogenic threats. These include habitat degradation, accidental capture in artisanal fishing nets, and hunting for use as food and bait. The species also competes with rapidly expanding human populations for coastal resources in some of the poorest countries on Earth. Data for most aspects of the species’ ecology are sparse, but S. teuszii is considered by most qualified observers to be rare and greatly threatened. A lack of appropriate survey data precludes a quantitative assessment of population trends and status. Most populations for which any data are available are considered to be extremely small, numbering in the tens or low hundreds of individuals. The available published estimates suggest that the total population likely falls below 3000 individuals. Declines in abundance have been observed or are suspected for each population and will continue, given projected expansions of identified threats that affect most of the species’ known range, and a corresponding lack of appropriate management actions. The apparent scale of threats, the presumed isolation of most populations, and a lack of directed conservation efforts in most areas suggest that the species qualifies for a listing of Critically Endangered (under criteria A3cd) on the IUCN Red List.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteur 
IMIS is ontwikkeld en wordt gehost door het VLIZ.