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Akysis subtilis in Thailand

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Akysis subtilis   Ng & Kottelat, 1998
Family:	Akysidae (Stream catfishes) , subfamily: Akysinae			picture (Aksub_u0.jpg) by WWF Thailand-Canon / Vidthayanon, C.
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:
Max. size:	4.0 cm SL (male/unsexed; Ref. 30857)
Environment:	benthopelagic
Climate:	tropical
Global Importance:
Resilience:
Distribution:	Asia: known only from the Mekong basin in Laos and Thailand.
Diagnosis:	Dorsal soft rays (total): 6-6; Anal soft rays: 9-9; Vertebrae: 35-36. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 11.9-13.5% SL); depth of caudal peduncle 5.5-5.8% SL; extremely narrow head ( head width 17.5-18.7% SL); small and close set-eyes (eye diameter 7-9% HL; interorbital distance 33-38% HL); short nasal barbels (23-30% HL); possession of 35-36 total vertebrae; presence of 1+ 3 gill rakers on the first branchial arch; 5-6 serrae on the posterior edge of the pectoral spine; 8 branchiostegal rays; caudal fin strongly forked with pointed lobes (Ref. 30226). Body brown with 2 dark patches along dorsum at base of dorsal and adipose fins (Ref. 43281).
Biology:
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Ng, H.H. and M. Kottelat. 1998. (Ref. 30226)
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Thailand country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:  Vidthayanon, C., J. Karnasuta and J. Nabhitabhata, 1997
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Known from the Mekong basin at Nakhon Phanom in northeastern Thailand (Ref. 30226). Type locality, Nakhon Phanom, Mekong River, downstream Ban Tha Kai, downstream Mukdahan, Yongsak and Suban. (Ref. 30226). Also Ref. 26336, 33021.
Country Information:	www.cia.gov/cia/publications/factbook/geos/th.html
Occurrences:	Occurrences    Point map
Main Ref:	Ng, H.H. and M. Kottelat, 1998
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	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Length-frequency Wizard | Life-history tool |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Scirus | Tree of Life | Zoological Record
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	Checked:  Torres, Armi G.	Modified:  Torres, Armi G.	Entered:  Sampang, Arlene G.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07