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Namibian Dolphin Project InternWalvis Bay, Namibia July & August 2012
Julie Coffey
About the projecthttp://namibiandolphinproject.com
Dr. Simon ElwenResearch fellow, University of Pretoria
Dr. Tess GridleyPrincipal investigator for
acoustics
Nanuuq: 6m trusty research vessel
Benguela ecosystem
● Upwelling of nutrient-rich Antarctic waters
● One of the most productive marine environments in the world
Walvis Bay, Namibia
Species
Heaviside’s dolphins (Cephalorhynchus heavisidii)
Bottlenose dolphins (Tursiops truncatus)
Humpback whales (Megaptera novaeangliae)
Acoustics● Study species:
Bottlenose dolphins● Searching for signature
whistles● Cross-referencing with
field behavioral observations
Photo-ID
● For Heaviside’s dolphins, bottlenose dolphins, and any whales
● Use dorsal fins (both sides) for individual identification
● Body scarring● Flukes for whales, paired
with dorsal fin photos
Biopsies
● Crossbow for whales, javelin for dolphins
● Tested fats for heavy metals, sampled DNA to identify the individual and determine the sex
Tourism Impacts•Feeding wildlife (seals, pelicans)•Boat proximity and duration with cetaceans•Boat hits
GPS tracking
Conservation Threats● Oil prospecting● Shipping and Industry● Harbor pollution● Fishery reduction
Birds and RAMSAR
● RAMSAR protected wetland
● Salt flats created for mining purposes
● Many birds migrate down from the Etosha pan
Credits
● Benguela current image: http://www.i-cool.org/?p=4873
● RAMSAR image: http://www.nnf.org.na/CETN/ramsar.htm
● Whistle image:● http://www.scielo.br/scielo.php?
pid=S0001-37652004000200030&script=sci_arttext