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Marine Mammals

The following table lists the species in this taxon assessed under the Singapore Red List, which is also published in the third edition of the Singapore Red Data Book.

You may find information for the conservation statuses assessed in the second edition Singapore Red Data Book (RDB2) and third edition Singapore Red Data Book (RDB3).

The information below is accurate as at the time of the listing online for the taxon.

Checklist of Marine Mammal Species with their Category of Threat Status for Singapore

Prepared by Sirius Z.H. Ng, Zeehan Jaafar

Family Genus Species Authority Common Name RDB2 RDB3
Delphinidae Orcaella brevirostris (Owen in Gray, 1866) Irrawaddy Dolphin Not Listed CR
Delphinidae Pseudorca crassidens (Owen, 1846) False Killer Whale Not Listed NE
Delphinidae Sousa chinensis (Osbeck, 1765) Indo-Pacific Humpback Dolphin EN CR
Delphinidae Tursiops aduncus (Ehrenberg, 1833) Indo-Pacific Bottlenose Dolphin Not Listed CR
Phocoenidae Neophocaena phocaenoides (Cuvier, 1829) Finless Porpoise CR CR
Physeteridae Physeter macrocephalus Linnaeus, 1758 Sperm Whale Not Listed NE
Dugongidae Dugong dugon (Müller, 1776) Dugong CR CR

 

The list of the Categories used in 3rd edition of the Red List is:

 

Category

Abbreviation

Criteria

Not Threatened

Least Concern

LC

Not approaching the above criteria

Near-Threatened

NT

Approaching but not yet reaching the threshold for the above criteria

Threatened

Vulnerable

VU

There are fewer than 1,000 mature individuals but more than 250 and there may or may not be any other evidence of decline, small range size or fragmentation.

Endangered

EN

There are fewer than 250 mature individuals and no other evidence of decline or fragmentation.

Critically Endangered

CR

There are fewer than 50 mature individuals, OR if more than 50 mature individuals but less than 250, with some evidence of decline or fragmentation.

Extirpation

&

Extinction

Presumed Nationally Extinct

NEx

The species is extinct (extirpated) within Singapore but it still survives outside Singapore.

Globally Extinct

EX

The species is extinct all over the world, both in the wild and in cultivation

 

 

 

 

 

 

Other Categories

Data Deficient

DD

Inadequate information to make an informed assessment

Not Applicable

NA

Species that are not eligible for assessment at the national level (mainly introduced taxa and vagrants)

Not Evaluated

 

NE

Species that are possibly eligible for assessment but have not yet been evaluated against the criteria

Not Listed

NL

Species not listed in the records (in the IUCN Global Red List database, or the first edition Singapore Red Data Book - RDB 1 and second edition Singapore Red Data Book - RDB 2) for whatever reason

Last updated on 04 June 2024

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