Overview

Comprehensive Description

Biology

Inhabits quiet forest streams with slow-flowing acidic water (Ref. 85309). Feeds on worms and small crustaceans (Ref. 7020). One of the world's smallest cyprinid species.
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Distribution

Range Description

The species is distributed from southern Thailand, Peninsular Malaysia, Singapore, to Indonesia (Sumatra and unconfirmed records from Kalimantan). The northernmost record in Thailand is from Phunphin in Surathani Province. The extent of its distribution in Indonesia is less certain.
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Asia: Malay Peninsula to Sumatra, Indonesia.
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Southeastern Asia.
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Physical Description

Size

Maximum size: 25 mm ---
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Max. size

2.5 cm SL (male/unsexed; (Ref. 7020))
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
A benthopelagic species that inhabits slow-flowing forest streams and freshwater swamps. The water where spawning occurs has a maximum depth of 15 cm and thick vegetation.

Systems
  • Freshwater
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Environment

benthopelagic; freshwater; pH range: 5.0 - 6.0; dH range: 5 - 12
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Diseases and Parasites

Nematode Infestation. Parasitic infestations (protozoa, worms, etc.)
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Bacterial Infections (general). Bacterial diseases
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Life History and Behavior

Life Cycle

The water where spawning occurs has a maximum depth of 15cm and thick vegetation (Ref.1672).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Boraras maculatus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 2 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

AAAGATATTGGCACCCTTTATCTCGTATTTGGTGCTTGAGCCGGAATAGTTGGAACTGCCCTA---AGTCTCCTTATCCGTGCCGAATTAAATCAGCCAGGATCTCTTTTAGGAGAT---GACCAAATTTATAATGTAATTGTTACTGCTCATGCTTTCGTAATAATTTTCTTTATAGTTATACCCATACTAATTGGGGGATTCGGAAATTGACTGGTACCATTAATA---ATTGGGGCACCAGATATAGCATTCCCACGAATAAATAATATAAGCTTCTGACTCCTTCCCCCTTCATTCCTATTATTACTAGCCTCCTCTGGCGTAGAAGCCGGGGCAGGGACAGGATGAACAGTCTACCCACCACTTGCCAGCAACATTGCCCACACAGGAGCATCAGTTGACCTA---ACAATTTTTTCACTTCATTTAGCAGGTGTGTCATCAATTCTTGGAGCTATTAATTTTATTACAACAATTATTAATATGAAGCCTACAGTAACCACCCAATACCAAACCCCATTATTCGTGTGAGCAGTATTAATTACAGCTGTCCTCTTACTTTTATCGTTACCAGTACTAGCAGCT---GGAATTACAATACTACTTACAGACCGAAACCTTAATACTACATTTTTTGACCCAGCCGGAGGAGGTGACCCAATCTTATACCAACACTTATTCTGATTTTTTGG
-- end --

Download FASTA File
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Statistics of barcoding coverage: Boraras maculatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 7
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Allen, D.

Reviewer/s
Ng, H.H. & Smith, K.

Contributor/s
Jenkins, A., Kullander, F.F. & Tan, H.H.

Justification
Although this species is known to be impacted by loss of habitat (thick forest cover associated with streams and freshwater swamps), it is assessed as Least Concern due to its wide distribution and the lack of empirical evidence of population decline. More research on the effects of habitat loss on the population are needed and it may be necessary to reassess this species once additional data in this regard is available.

History
  • 2009
    Least Concern
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Population

Population
The species has a wide distribution although the population size and trend are unknown.

Population Trend
Unknown
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Threats

Major Threats
Threats to this species and its habitat are unknown at present. It is impacted by forest loss (e.g. in Singapore) and likely by sedimentation, but further research is required.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no conservation measures currently known to be in action at habitat or species level.
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Relevance to Humans and Ecosystems

Benefits

Importance

aquarium: commercial
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Wikipedia

Boraras maculatus

Boraras maculatus is a species of ray-finned fish in the genus Boraras. It grows to be .8 inches long at adulthood.

References[edit]

  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2006). "Boraras maculatus" in FishBase. April 2006 version.
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