Category: Fishes | Resource | Threatened fishes

Assame batasio, Batasio tengana (Hamilton, 1822)

Systematic position Phylum: Chordata Class: Actinopterygii (Ray-finned fishes) Order: Siluriformes (Catfishes) Family: Bagridae (Bagrid catfishes) Genus: Batasio Species: B. tengana

Synonyms Bagrus tengana (Hamilton, 1822) Gagata tengana (Hamilton, 1822) Macrones tengana (Hamilton, 1822) Pimelodus tengana Hamilton, 1822

Common/local names English: Assame batasio Bangladesh: Tengra (টেংরা) India: Batasi (Talwar and Jhingran, 1991).

Distribution: Bangladesh, India, Myanmar and Thailand (Talwar and Jhingran, 1991).

Conservation status: Endangered in Bangladesh (IUCN Bangladesh, 2000). …read more

Category: Fishes | Freshwater Fishes | Resource | Threatened fishes

Threatened Freshwater Fishes of Bangladesh

Distribution of Threatened Freshwater Fishes of Bangladesh (IUCN Bangladesh (2015a, b))

Distribution of Threatened Freshwater Fishes of Bangladesh (IUCN Bangladesh (2015a, b))

Threatened species are any species which are vulnerable to endangerment in the near future. It includes Critically Endangered (CR), Endangered (EN) and Vulnerable (VU) …read more

Category: Fishes | Freshwater Fishes | Resource | Threatened fishes

Endangered (EN) Freshwater Fishes of Bangladesh

Ompok pabda, one of the endangered freshwater fishes of Bangladesh

Ompok pabda, one of the endangered freshwater fishes of Bangladesh

An endangered (EN) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as facing a high risk of extinction in the wild. It is the second highest risk category after critically endangered (CR) assigned by the …read more

Category: Fishes | Resource

List of Freshwater Fishes of Bangladesh and their conservation status

Conservation status of Freshwater Fishes of Bangladesh (According to IUCN Bangladesh (2015a, b))

Conservation status of Freshwater Fishes of Bangladesh (According to IUCN Bangladesh (2015a, b))

List of freshwater fishes of Bangladesh including their local conservation status (IUCN 2015a and b) are given below. In the …read more

Category: Fishes | Freshwater Fishes | Resource

Extinct Fishes of Bangladesh

Labeo dyocheilus

Labeo dyocheilus

Thirty species of fishes have been listed as extinct in inland waterbodies specially rivers of Bangladesh (Hossain, 2014). Famous Bangladeshi fisheries biodiversity scientist Dr. Hossain (Dr. Mostafa Ali Reza Hossain, Professor of Fisheries Biology and Genetics, BAU) also reported that more than hundred species of riverine fishes have been gone to under threat to extinct. According to Hossain (2014), a …read more

Category: Fishes | Resource

Freshwater and Estuarine Fishes of Bangladesh

Freshwater and Estuarine Fishes: General parameter to differentiate freshwater from estuarine habitat is the salinity level of water. Freshwater contains less than 0.5 ppt (Parts Per Thousand) salinity whereas estuarine water contains moderate salinity (generally 14-17 ppt). We can easily define freshwater and estuarine fish species in such ways that “fishes live in freshwater habitats are called freshwater fish and fishes live in estuarine habitat are called estuarine fishes.”

But, …read more

Category: Fishes | Resource

Threatened to Extinct Fishes of Bangladesh

Threatened to extinct fishes of Bangladesh: The IUCN Bangladesh (2000) has made a list of threatened to extinct fishes of Bangladesh. These species are considered as threatened fishes of Bangladesh. The National Categories of Threatened Animals are based on the Global Threatened Categories of IUCN. Bangladesh National Criteria were developed on the basis of qualitative data due to the lack of quantitative ones. The National Categories and Criteria …read more