Conservation status of New Zealand marine mammals (suborders Cetacea and Pinnipedia), 2009

The conservation status of New Zealand (NZ) marine mammals (suborders Cetacea and Pinnipedia) is reappraised using the 2008 version of the NZ Threat Classification System. The list comprises 56 taxa (named species or subspecies, and as yet unnamed forms or types) in the following categories: Threate...

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Bibliographic Details
Published in:New Zealand Journal of Marine and Freshwater Research
Main Authors: Baker, CS, Chilvers, BL, Constantine, R, DuFresne, S, Mattlin, RH, van Helden, A, Hitchmough, R
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis Ltd, The Royal Society of New Zealand 2010
Subjects:
Science & Technology
Life Sciences & Biomedicine
Physical Sciences
Fisheries
Marine & Freshwater Biology
Oceanography
New Zealand
threatened marine mammals
pinniped
cetacean
conservation status
HECTORS DOLPHIN
PHOCARCTOS-HOOKERI
FISHERIES BYCATCH
MIROUNGA-LEONINA
WHALE
POPULATION
HISTORY
ISLAND
Mirounga leonina
Online Access:http://hdl.handle.net/2292/13720
https://doi.org/10.1080/00288330.2010.482970
Description
Summary:The conservation status of New Zealand (NZ) marine mammals (suborders Cetacea and Pinnipedia) is reappraised using the 2008 version of the NZ Threat Classification System. The list comprises 56 taxa (named species or subspecies, and as yet unnamed forms or types) in the following categories: Threatened eight taxa (five Nationally Critical and three Nationally Endangered); Vagrant six taxa; Migrant-20 taxa; and Data Deficient-13 taxa. A further nine taxa are listed as Not Threatened. Relative to the previous listing, the threat status of two species worsened: the NZ sea lion (Phocarctos hookeri) was uplisted to Nationally Critical and the bottlenose dolphin (Tursiops truncatus) was uplisted to Nationally Endangered. No species was considered to have an improved status. With the uplisting of the NZ sea lion and the continued listing of the Hector's dolphin (Cephalorhynchus hectori hectori) as Endangered and Maui's dolphin (C. hectori maui) as Nationally Critical, all three endemic NZ marine mammals are now considered threatened with extinction. We considered future research or management actions that would allow the downlisting of the eight taxa currently listed as Threatened.

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