Towed passive acoustic monitoring complements visual survey methods for Heaviside's dolphins Cephalorhynchus heavisidii in the Namibian Islands Marine Protected Area

The genus Cephalorhynchus contains four dolphin species, of which three are classified as Near Threatened or Endangered and one subspecies is close to extinction. Understanding the species' abundance, distributions and habitat preferences is necessary for effective management to prevent further...

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Vydáno v:	African journal of marine science Ročník 42; číslo 4; s. 495 - 506
Hlavní autoři:	Gridley, T, Martin, MJ, Slater, J, Roux, J-P, Swift, RJ, Elwen, SH
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Grahamstown Taylor & Francis 01.10.2020 Taylor & Francis Ltd
Témata:	Acoustic data Acoustic surveying Acoustics Africa Aquatic mammals Centroids Cephalorhynchus Cephalorhynchus heavisidii Cetacea click detection and classification Coastal ecology Coastal zone computer software Data collection Dolphins Dolphins & porpoises Echolocation Ecological distribution ecosystems encounter rate extinction Habitat preferences Habitat selection habitats Islands line-transect survey Marine mammals Marine parks Marine protected areas marine science Methods Monitoring Narrowband narrowband high-frequency clicks Offshore PAMGuard Population decline Porpoises Protected areas southwestern Atlantic Species extinction Surveys Taxonomy Threatened species Africa
ISSN:	1814-232X, 1814-2338, 1814-2338
On-line přístup:	Získat plný text
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