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NRLD - 327632 | Steno bredanensis

Assessment ID
327632
Taxon name
Steno bredanensis
(Cuvier in Lesson, 1828)
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Steno bredanensis
(Cuvier in Lesson, 1828)
Common name(s)
Rough-toothed Dolphin, Kharbadanti Dolphin
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Mammals
Kingdom
Animalia
Phylum
chordata
Class
mammalia
Order
cetacea
Family
delphinidae
Genus
Steno
Species
bredanensis
Species authority
(Cuvier in Lesson, 1828)
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
Only one sighting of two individuals of Steno bredanesis in the Swatch of No-ground (165 km offshore on the south from the Sundarbans) was observed by BCDP in 2012 (BCDP Unpubl.). No more information is available to assess this species. Thus, it is categorized 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
It occurs in deep tropical, subtropical and warm temperate waters around the world (Culik 2011, Hammond et al. 2012). About 165 km far offshore deep marine waters from the coast of the Sundarbans.
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 is social and occurs in groups fast swimmer and may swim rapidly just under the water surface showing dorsal fin with a small part of back tip.
History
Not assessed (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