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Structure of a toothed cetacean community around a tropical island (Mayotte, Mozambique Channel)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Kiszka --- Observatoire des Mammifères Marins, Mayotte PJ Ersts --- , USA V Ridoux --- Observatoire des Mammifères Marins, MayotteWe describe the structure of a toothed cetacean community around the island of Mayotte (South-West Indian Ocean, 45°10′ E, 12°50′ S), using data collected from small boat-based surveys conducted between July 2004 and June 2006. In all, 16 odontocete species... -
Trends in tagging of marine mammals: a review of marine mammal biologging studies
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T McIntyre --- Mammal Research Institute, Department of Zoology and Entomology, South AfricaThe number of scientific papers resulting from biologging instruments deployed on marine mammals is increasing as improved technologies result in smaller devices and improved sensor-, storage- and transmission capabilities. I undertook a comprehensive review of papers resulting from biologging deployments... -
Blue whales Balaenoptera musculus in offshore waters of Kenya
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Barber --- Gardline Environmental Ltd, UK I Sikora --- Gardline Environmental Ltd, UK M Nimak-Wood --- Gardline Environmental Ltd, UKObservations of blue whales were made in Kenyan offshore waters during a seismic survey from September 2014 to January 2015. These represent the first live at-sea sightings of blue whales reported from Kenyan waters. All 30 sightings occurred between September... -
Abundance estimates of an isolated population of common bottlenose dolphins Tursiops truncatus in Walvis Bay, Namibia, 2008–2012
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH Elwen --- Mammal Research Institute, University of Pretoria, South Africa RH Leeney --- Natural History Museum, United Kingdoms T Gridley --- Centre for Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences,The coastal population of common bottlenose dolphins Tursiops truncatus found in Namibia is regionally isolated and unique. This population faces several potential anthropogenic threats, especially in Walvis Bay, including boat-based tourism, a commercial harbour undergoing expansion, and aquaculture for oysters... -
An acoustic survey of beaked whale distribution at São Tomé and Príncipe, Gulf of Guinea, using an unmanned surface vessel
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Pierpoint --- , United Kingdom E Oliver --- , United Kingdom L Scala --- , United Kingdom D Hedgeland --- , United KingdomThe first records of beaked whales, including Cuvier’s beaked whale Ziphius cavirostris, are reported from an acoustic baseline survey in the territorial waters of the Democratic Republic of São Tomé and Príncipe, Gulf of Guinea, West Africa. The survey was... -
Impact of interactions between common bottlenose dolphins and purse-seiners in the Moroccan Mediterranean region: case study in the Al Hoceima fishing grounds
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Keznine --- Abdelmalek Essaâdi University, Morocco B Mghili --- Abdelmalek Essaâdi University, Morocco H Awadh --- Abdelmalek Essaâdi University, Morocco M Analla --- Abdelmalek Essaâdi University, Morocco M Aksissou --- Abdelmalek Essaâdi University, MoroccoThis study examines the effect of common bottlenose dolphins Tursiops truncatus on the purse-seine fishery for small pelagic fishes in the Mediterranean Sea and the economic consequences thereof. The investigation focused on the fleet registered at the port of Al...