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NRLD - 327628 | Pseudorca crassidens

Assessment ID
327628
Taxon name
Pseudorca crassidens
(Owen, 1846)
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Pseudorca crassidens
(Owen, 1846)
Common name(s)
False Killer Whale, Chhadmaghatok Timi
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Mammals
Kingdom
Animalia
Phylum
chordata
Class
mammalia
Order
cetacea
Family
delphinidae
Genus
Pseudorca
Species
crassidens
Species authority
(Owen, 1846)
Location and scope
Specific locality or subnational name or regional name
Bangladesh
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Bangladesh
Country ISO code(s)
BGD
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Data Deficient
Abbreviated status
DD
Criteria system used
IUCN

(see Assessment details)

Assessment rationale/justification
There are only two sightings of Pseudorca crassidens have been reported: first one with about 30 individuals in the Swatch of No-ground in 2011, and second one with about 40 individuals in the offshore south of S. Martin's Island in 2012. One carcass was reported in the Daily Azadi newspaper of Chittagong on 28 December, 2010. There is no information available on its population size, threats or population trend. Thus, the species has been assessed as Data Deficient.
Assessment details
Year assessed
2015
Assessors/contributors/reviewers listed
Md. Zahangir Alom
Criteria system used
IUCN
Reference for methods given
IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge, UK: IUCN. iv + 32pp; IUCN (2012) Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
URL (link) of redlist assessment or publication
http://iucnredlistbd.org/
Further information
Endemism (according to assessment)
Endemic to region
No
Taxon distribution as listed in assessment
In tropical, subtropical and warm temperate waters, mainly offshore (Taylor et al. 2008). Offshore waters and Swatch of No-ground.
Is there a map available in assessment?
Yes, in the publication/on website
Habitat and systems
Ecological system type
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat
Habitat details as listed in assessment
It inhabits mainly offshore and deep marine waters. It is very social, rapidly approaches boats and very active and playful animal.
History
Not assessed yet (IUCN Bangladesh 2000).
Publication
Red List of Bangladesh Volume 2: Mammals
IUCN Bangladesh. 2015. Red List of Bangladesh Volume 2: Mammals. IUCN, International Union for Conservation of Nature, Bangladesh Country Office, Dhaka, Bangladesh, pp. xvi+232