Overview

Comprehensive Description

Biology

Found in rivers, swamps, reservoirs and canals. Enters flooded forest (Ref. 9497). Feeds on small fishes, shrimps, aquatic insects, mollusks and crabs (Ref. 6459). Considered a delicacy over much of eastern Asia. Exported fishes command a high price (Ref. 12693). Maybe the largest species of the goby-like fishes.
  • Larson, H.K. and E.O. Murdy 2001 Eleotridae. Sleepers (gudgeons). p. 3574-3577. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 42913)   http://www.fishbase.org/references/FBRefSummary.php?id=42913&speccode=5376 External link.
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Distribution

Range Description

Recorded from the Mekong and Chao Phraya basins in Thailand, Viet Nam, Lao PDR, Cambodia (including the Tonle Sap River and Lake, Stung Sen River), Malaysia (Peninsula, Sarawak, and Sabah), Philippines and Indonesia (Sumatra and Kalimantan). Record from Fiji needs confirmation. Also recorded from China (Hong Hong, but thought to be from a market), Taiwan, Province of China, and from Singapore.
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Asia: Mekong and Chao Phraya basins, Malay Peninsula, Indochina, Philippines and Indonesia. Record from Fiji needs confirmation.
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Physical Description

Morphology

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Analspines: 1; Analsoft rays: 8
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Size

Maximum size: 600 mm TL
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Max. size

65.0 cm SL (male/unsexed; (Ref. 43281))
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Diagnostic Description

With 60-65 predorsal scales; without ocellus on caudal peduncle (Ref. 43281).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Occurs in various wetlands, including rivers, ponds, reservoirs, canals, swamps and flooded forests. It generally prefers areas of little or no water movement. Mainly found in freshwater but is also found in brackish environments.

Enters flooded forest (Roberts 1993). Feeds on small fishes, shrimps, aquatic insects, molluscs and crabs.

Systems
  • Freshwater
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Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 1 - 3
  Temperature range (°C): 28.738 - 28.738
  Nitrate (umol/L): 0.360 - 0.360
  Salinity (PPS): 32.360 - 32.360
  Oxygen (ml/l): 4.580 - 4.580
  Phosphate (umol/l): 0.207 - 0.207
  Silicate (umol/l): 5.109 - 5.109

Graphical representation

Depth range (m): 1 - 3
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Environment

demersal; potamodromous (Ref. 51243); freshwater; brackish; pH range: 6.5 - 7.5; dH range: 10 - 15; depth range 10 - ? m
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Diseases and Parasites

Lernaea Infestation. Parasitic infestations (protozoa, worms, etc.)
  • Lopez, N.C. 2001 Parasitic crustaceans in fishes from some Philippine lakes. p.75-79. In C.B. Santiago, M.L. Cuvin-Aralar and Z.U. Basiao (eds) Conservation and ecological management of Philippine lakes in relation to fisheries and aquaculture. SEAFDEC, Aquacult. Dept., Iloilo,Phil., PCAMRD, Los Baños, Lag., & BFAR Q.C. Phil.,187p. (Ref. 45120)   http://www.fishbase.org/references/FBRefSummary.php?id=45120&speccode=2 External link.
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Edwardsiellosis. Bacterial diseases
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Life History and Behavior

Life Cycle

Distinct pairing (Ref. 205).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Oxyeleotris marmorata

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

 
There is 1 barcode sequence available from BOLD and GenBank.   Below is the 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.  Other sequences that do not yet meet barcode criteria may also be available.
 
FOAC310-05|BW-A1309|Oxyeleotris marmorata| ------------------------------------------CTATATCTAGTATTTGGTGCTTGAGCCGGAATAGTAGGCACAGCCTTA---AGCTTGCTCATTCGAGCCGAACTAAGTCAACCAGGGGCTCTCCTTGGGGAT---GACCAAATCTATAACGTTATCGTAACGGCCCACGCCTTTGTAATAATTTTCTTTATAGTAATACCAATCATGATCGGGGGCTTTGGCAACTGATTAGTCCCACTAATA---ATTGGAGCCCCAGACATAGCATTCCCCCGAATAAACAATATGAGTTTCTGGCTCCTTCCCCCTTCTTTCCTCCTCCTCCTAGCATCTTCAGGGGTTGAAGCTGGTGCCGGAACAGGATGAACTGTCTACCCACCCCTGGCGGGCAACCTCGCCCATGCCGGAGCTTCCGTTGACCTC---ACCATTTTCTCCCTACACCTGGCAGGTATCTCCTCAATTTTAGGGGCCATTAACTTTATTACAACTATTCTTAATATAAAACCTCCCGCTATTTCACAGTATCAAACCCCCCTTTTCGTATGGGCCGTCTTAATTACAGCAGTCTTGCTCCTATTGTCCCTCCCCGTCCTTGCCGCA---GGCATCACAATGCTCCTTACAGACCGAAATCTCAATACAACCTTCTTCGACCCGGCAGGAGGGGGAGACCCAATCCTGTACCAACACCTC-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------  
-- end --

Download FASTA File
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Statistics of barcoding coverage: Oxyeleotris marmorata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Species: 6
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
2011

Assessor/s
Allen, D.

Reviewer/s
Conway, K.W. & Juffe Bignoli, D.

Contributor/s

Justification
The species has a wide distribution in southeast Asia and is considered Least Concern at present. It is highly utilised however and population trends should be monitored.
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Population

Population
Little information is available.

Population Trend
Unknown
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Threats

Threats

Major Threats
Likely to be impacted locally in parts of its range by pollution and overfishing.
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Not Evaluated
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Management

Conservation Actions

Conservation Actions
Further research into the species current population trends and the impact of threats is required.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquaculture: commercial; aquarium: commercial
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Wikipedia

Oxyeleotris marmorata

Oxyeleotris marmorata, the marbled sleeper or marbled gudgeon, or Soon Hock in Cantonese, is a widely distributed species of freshwater fish. It lives in the Mekong and Chao Praya basins, rivers and other water bodies in Malaysia, Singapore, Indochina, Philippines and Indonesia.[1] This species is an economically important fish in Southeast Asia, especially in Malaysia, Singapore, Thailand and Indonesia. It is highly popular among the Chinese community due to its fine texture, tasty white flesh and is believed to have healing properties. It is said, best eaten after surgeries or childbirths. Some says it can lead to prolonged life. In Malaysia, commercialization of this type of fish is not widely established. Demands are largely dependent on wild populations thus fetching high prices in the market.

References

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