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Check-list of Bony Fish Collected from the Upper Halda River, Chittagong, Bangladesh

Mohammed S. Alam
Institute of Marine Sciences and Fisheries, University of Chittagong, Bangladesh.

Mohammad S. Hossain
Institute of Marine Sciences and Fisheries, University of Chittagong, Bangladesh.

Mohammad M. Monwar
Institute of Marine Sciences and Fisheries, University of Chittagong, Bangladesh.

Mohammad E. Hoque
Institute of Marine Sciences and Fisheries, University of Chittagong, Bangladesh.

Faiz M. Taimur
Institute of Marine Sciences and Fisheries, University of Chittagong, Bangladesh.

Abstract/ Executive Summary:

The Halda River of Bangladesh gains its importance as natural spawning ground of major carp fishes. A check-list of bony fish in the Halda River was carried out. It appeared that the fish fauna in this river is dominated by the family of Cyprinidae (30.16 %) represented by 19 species, followed by Gobiidae (9.52 %) represented by 6 species and Schibeidae (7.94 %) with 5 species, than Bagridae and Channidae (6.35 %) with 4 species each, Siluridae (4.76 %) with 3 species. Among the listed families, there are 14 families represented by a single species and 4 families by 2 species. The total number of species is 63 belonging to 51 genera pertaining to 24 families and 9 orders. The present study reported 5 migrant species from the Bay of Bengal and 3 species as exotic species.

Keywords: Check-list, Biodiversity, Halda River, Exotic species, Threatened species.

Location: Chittagong district, Bangladesh

Start Date: 00-00-2011

End Date: 00-00-2011

Program Area: Conservation and Biodiversity

Commodity: Aquatic animal

Objectives:

To build up faunistic information about the bony fish species available in the fresh waters of Bangladesh.

Methodology:

The Halda River is a major tributary of river Karnaphuli in Chittagong district of Bangladesh. The river originates from the Hill Ranges in the Chittagong hill tracts range at latitude 22° 38' 00" N and longitude 92° 10' 00" E and enters into Chittagong district through Fatikchari upazila. Then it flows southwest keeping off the higher regions to the north and then due south past Bibirhat, Nazirhat, Sattarghat and other important places of Fatikchari, Hathazari, Raozan and Kotwali Upazilla of Chittagong which form it’s basin. It falls into the Karnaphuli River at Kalurghat at latitude 22° 25' 13" N and longitude 91° 52' 33" E. The total length of this river is about 81 km. Sampling stations was divided into three different stations which cover upper zone (Fatikchari-Sattarghat) of this river. The Sampling stations were Nazirhat Bridge (S1) at 22° 37' 38" N and 91° 47' 51" E, Sattaghat Bridge (S2) at 22° 30' 51" N and 91° 50' 43" E, and Garduara (S3) at 22° 29' 59" N and 91° 51' 58" E. Sampling station S2 and S3 were located at the mouth of two major tributary of this river, the Boalia tributary and Cheng khali tributary respectively. Fishes were collected and identified directly from the three selected site during the study period. Weekly visit were made to the sampling stations. Immediately photographs were taken earlier to preservation since formalin decolorizes the fish color on long preservation. Formalin solution was prepared by diluting one part of concentrated formalin or commercial formaldehyde with nine parts of water i.e., 10 % formalin. Fishes brought to the laboratory were fixed in this solution. The specimens were identified with the help of catalogs and systematically categorized.

Source of Information: AACL Bioflux, 2013, Volume 6, Issue 4. 333-338

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The knowledge accumulated so far shows that the Halda River holds wide fish diversity. Since many of species are still unexplored, a much greater sampling effort is necessary to produce a complete scenario of the fish diversity in the basin, where potentially several new species may be discovered. Moreover, this river is currently the main source of wild fry of Indian carps of the country, which generates a high fishing pressure on its natural stocks. Under this circumstance, a better understanding of the diversity and distribution of fishes in the Halda River is urgently needed.

Knowledge Management: Journal