Neophocaena phocaenoides | Red List of Bangladesh Volume 2: Mammals

Taxa
Neophocaena phocaenoides | (G. Cuvier, 1829)
Neophocaena phocaenoides | G. Cuvier, 1829
Publication
Red List of Bangladesh Volume 2: Mammals
NRL Record ID
327624
Location
Countries in Assessment
Bangladesh
Country ISO code(s)
BGD
Does the assessment cover a marine EEZ area(s)?
Off
Scope (Assessment)
National
Taxon
Common Names
Indo-Pacific Finless Porpoise
Finless Porpoise
Paknahin Choto Shishu
Pakh-heen Porpoise
RRL Synonyms
Delphinus phocaenoides G. Cuvier, 1829
Taxonomic Group
Vertebrates
Taxonomic Group Level 2
Mammals
Assessed taxon level
Species
Taxonomic Notes
The recognition of two externally distinct morphological forms of Finless Porpoises as separate biological species (Neophocaena phocaenoides and N. asiaeorientalis) was accepted recently when it was demonstrated that the two forms are reproductively isola
Taxon distribution as listed in assessment
It occurs in Indo-Pacific; warm-temperate to tropical waters; Persian Gulf to Malaysia, north coast of Java (Tasan and Leatherwood 1984), China and Japan; coastal waters and some rivers (Wilson and Reeder 2003). Mainly in coastal waters in the Bay of Bengal with higher salinity and depth than Irrawaddy Dolphin (Orcaella brevirostris).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
No
Habitat
Habitat details as listed in assessment
It is found as single, pairs or groups of up to 7 animals (Smith et al. 2008). They prefer habitat with sandy and soft bottom, and feed on small fishes, cephalopods, and crustaceans (mainly demersal species) (Jefferson and Hung 2004). They prefer mangrove swamps, estuarine brackish, coastal and marine water in the Bay of Bengal. They prefer water depth from 5.9-16.0 meter and salinity from 15.0-32.0 ppt.
Is there a map available in assessment?
Yes, in the publication/on website
Assessed status
Asessment status in full
Near Threatened
Assessment status abreviation
NT
Assessment rationale/justification
This species is found in brackish water in the Sundarbans mangrove swamps, coastal and marine waters of the Bay of Bengal. No population size reduction or decline is known. Its Extent of Occurrence is 25,237 km2 (>20,000 km² threshold) and Area of Occupancy is 14,344 km2 (extremely higher than 2,000 km² threshold). Total population size is 1,382 individuals (number of calf is unknown) in coastal waters in the Bay of Bengal (Smith et al. 2008) which is larger than the threshold level. It does not fulfill any of the criteria to qualify threatened categories this species has been categorized as Near Threatened based on its existing threats.
About the assessment
Assessment year
2015
Assessors/contributors/reviewers listed
Md. Zahangir Alom
Affliation of assessor(s)/contributors/reviewers listed on assessment
NGO
Academic
Assessor affiliation specific
Academic|NGO
Criteria system
Criteria system specifics
IUCN v3.1 + Regional Guidelines v4.0
Criteria system used
IUCN
Criteria Citation
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/
Endemism
Endemic to region
No
Endemism Notes
Is an endemic?: No
Conservation
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Further information
History
Endangered in Bangladesh (IUCN Bangladesh 2000).
Scientific Name Kingdom Phylum Class Order Family Genus
Neophocaena phocaenoides Animalia Chordata Mammalia Cetartiodactyla Phocoenidae Neophocaena
Neophocaena phocaenoides Animalia Chordata Mammalia Cetacea Phocoenidae Neophocaena