BFRI) revealed the information recently. Among the 100 threatened species, 50 are in danger of extinction, the studies said. Dr Mostofa Reza Ali Hossain, professor of Department of Fisheries Biology and Genetics at Bangladesh Agriculture University, told daily sun that destruction of water bodies, adverse impact of climate change, indiscriminate use of pesticides in cultivation, industrial pollution, alien fish farming, nets and excessive fish farming by using illegal drugs are major reasons behind the decline in small fish species in country. He said, “In rainy seasons, we experience dry weather due to climate change that dries up most of the water bodies. When the water bodies and wetland decrease, fish species also face a crisis to survive. Indiscriminate urbanisation made after filling water bodies have been shrinking natural water bodies, which is the main living spot of small fishes, he said. The use of pesticides has increased nearly twenty-fold over the last 30 years from 2,200 tonnes in 1980-1981 to 50,000 tonnes in 2012-13, the professor said, adding that nearly 70,000 – 75,000 tonnes of pesticides are used in farmlands of which nearly 12,000 tonnes are drained to the water bodies. Professor Hossain also said unnecessary breeding of foreign fishes are also posing threat to local species of fishes. Around 25 alien fishes are now being farmed in Bangladesh. Open water fish (fresh water fish or captured fish) production decreased to 0.9 million tonnes in fiscal year 14 from 1.12 million in fiscal year 09, according to a data of the Department of Fisheries (DoF). However, the country’s overall fish production reached all-time high of 3.55 million tonnes in FY14. According to the research by BAU Fisheries Department, popular local fish species like one specie of Gutum out of its 12 species, Panga, one type of Chela, one variety of Darkina, Kani Tengra, Kutakanti, one genotype of Kajoli, one specie of Chanda, Pipla or Teela Shol, Chhoto Koi, Gharpoia, Mahashir, one variety of Puti, one genotype of Bholl, etc have already faced extinction. Farida Akhter, UBINIG executive director, who also leads Naya Krishi Andolon told daily sun that in recent decades, indiscriminate use of pesticides often impacts negatively on beneficial insects, fishes species in the country. Adverse impacts of climate change and different obstructions caused by humans have pushed the existence of the rivers and canals into jeopardy making a sharp fall in production of local fish resources in the district, she said. Farida said, “We were able to see the spontaneous movement of fishes in paddy field in our childhood, but it cannot be imagined at the present time.” If the declining trend of the local fish resources continues this way, the country will face a serious deficiency of fresh water small fishes in the near future, she said.
Monday, November 3, 2014
Freshwater fish species facing extinction:Daily Sun
BFRI) revealed the information recently. Among the 100 threatened species, 50 are in danger of extinction, the studies said. Dr Mostofa Reza Ali Hossain, professor of Department of Fisheries Biology and Genetics at Bangladesh Agriculture University, told daily sun that destruction of water bodies, adverse impact of climate change, indiscriminate use of pesticides in cultivation, industrial pollution, alien fish farming, nets and excessive fish farming by using illegal drugs are major reasons behind the decline in small fish species in country. He said, “In rainy seasons, we experience dry weather due to climate change that dries up most of the water bodies. When the water bodies and wetland decrease, fish species also face a crisis to survive. Indiscriminate urbanisation made after filling water bodies have been shrinking natural water bodies, which is the main living spot of small fishes, he said. The use of pesticides has increased nearly twenty-fold over the last 30 years from 2,200 tonnes in 1980-1981 to 50,000 tonnes in 2012-13, the professor said, adding that nearly 70,000 – 75,000 tonnes of pesticides are used in farmlands of which nearly 12,000 tonnes are drained to the water bodies. Professor Hossain also said unnecessary breeding of foreign fishes are also posing threat to local species of fishes. Around 25 alien fishes are now being farmed in Bangladesh. Open water fish (fresh water fish or captured fish) production decreased to 0.9 million tonnes in fiscal year 14 from 1.12 million in fiscal year 09, according to a data of the Department of Fisheries (DoF). However, the country’s overall fish production reached all-time high of 3.55 million tonnes in FY14. According to the research by BAU Fisheries Department, popular local fish species like one specie of Gutum out of its 12 species, Panga, one type of Chela, one variety of Darkina, Kani Tengra, Kutakanti, one genotype of Kajoli, one specie of Chanda, Pipla or Teela Shol, Chhoto Koi, Gharpoia, Mahashir, one variety of Puti, one genotype of Bholl, etc have already faced extinction. Farida Akhter, UBINIG executive director, who also leads Naya Krishi Andolon told daily sun that in recent decades, indiscriminate use of pesticides often impacts negatively on beneficial insects, fishes species in the country. Adverse impacts of climate change and different obstructions caused by humans have pushed the existence of the rivers and canals into jeopardy making a sharp fall in production of local fish resources in the district, she said. Farida said, “We were able to see the spontaneous movement of fishes in paddy field in our childhood, but it cannot be imagined at the present time.” If the declining trend of the local fish resources continues this way, the country will face a serious deficiency of fresh water small fishes in the near future, she said.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment