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Ichthyofauna of the River Halda, Chittagong, Bangladesh

Mohammad Ali Azadi
Department of Zoology, University of Chittagong, Chittagong-4331, Bangladesh

Mohammad Arshad-Ul-Alam
Bandarban Government College, Bandarban Hill District, Bangladesh

Abstract/ Executive Summary:

Eighty-three species of finfish belonging to 13 Orders, 35 Families, and 69 genera including three exotic species, and 10 species of shellfish (crustaceans) under one order, 3 families and 3 genera were identified from the River Halda during September 2004 to December 2011. Thus a total of 93 species of Ichthyofauna (finfish and shellfish) were recorded from this river during the seven years (2004-2011) of investigation. Maximum number of finfish species were recorded under the family Cyprinidae (19 species) followed by the family Gobiidae (11 species), whereas maximum number of shellfish species were recorded under the family Palaemonidae (8 species) followed by Penaeidae (1 species) and Portunidae (1 species). Of the 83 finfish species, three belonged to the critically endangered, nine to the endangered and eight to the vulnerable category according IUCN (2000). Four species of finfish were new records from inland waters of Bangladesh. A systematic list of the ichthyofauna with local and English names, and habitat preference are provided.

Keywords: Ichthyofauna, Halda River, Fin fishes, Shellfishes

Location: The Karnaphuli river near Mohra point

Start Date: 00-09-2004

End Date: 00-12-2011

Program Area: Resource Development and Management

Commodity: Finfish

Objectives:

To the researchers, planners and biologists as the river is declared fish sanctuary in 2007.

Methodology:

For the study of finfish and shellfish species of the Halda River a total of 1217 samples was collected fortnightly during September 2004 to December 2011 directly from the fishermen catch caught by 34 types of different fishing gears. The sampling area covered all the fishing zones (39 kilometers) from Nazirhat Bridge to Halda mouth opening in the Karnaphuli river near Mohra point. Photographs of these catches were taken in fresh condition in the field. External features with colour patterns were noted in fresh condition. Specimens were preserved in 7% formaldehyde solution and kept in the Department of Zoology, University of Chittagong for further study and future reference. Zoological names of all the genera and species were listed in accordance with the rules and principles as set forth in the international code. Vernacular names are also provided. Website of fishbase was used for information on synonyms. The threat status of the fish species mentioned in the result was as per IUCN Bangladesh . Systematic list with local name, common English name and habitat preference were provided. National biodiversity status (categories of threat) as per IUCN was also cited for fish species.

Source of Information: Bangladesh J. Zool. 41(2): 113-133, 2013

Article Link (Online Journal): http://www.banglajol.info/index.php/BJZ/article/view/23313/16017

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present study was not found in the catch composition of Halda River. Further investigation on the fish fauna of floodplain, upland river, tributaries and coastal water could be able to conclude whether these species are disappeared or not.

Knowledge Management: Journal