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Scientific Name: Ilisha megaloptera (Swainson, 1839)
English Name: Bigeye ilisha
Local/Bangla Name: Borocokha ilish (বড়চোখা ইলিশ), Choukka (চৌক্কা)
Photo: Sahat Ratmuangkhwang (FishBase)
Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Clupeiformes
Family: Pristigasteridae
Description:
The body depth is 2.6–3.6 times the standard length (SL). The maxilla lacks a distinct lobe on its edge and there is no toothed hypomaxilla. The swim bladder has a single long tube that extends posteriorly down the right side of the body cavity above the base of the anal fin.
Habitat & Distribution in Bangladesh:
Found in river Meghna and its branches. Fairly common in Chandpur during rainy season.
Environment:
Freshwater, Brackish (Pelagic-neritic)
Comments:
It is an anadromous fish. Also found in marine environment
Main References:
Rahman AKA (2005) Freshwater Fishes of Bangladesh. 2nd ed. Zool. Soc. Bangladesh, Dhaka, Bangladesh. xviii + 394 pp.
Other References:
Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hasan MA, Khondker M and Rahman MM (eds.) (2007) Encyclopedia of Flora and Fauna of Bangladesh. Vol. 23. Freshwater Fishes. Asiatic Society of Bangladesh, Dhaka. 300+xxxi. pp.
Froese R, Pauly D (Editors) (2024) FishBase. World Wide Web electronic publication. www.fishbase.org, version (02/2024).
DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information
