River Choto Jamuna is an important and well-known river in north-west Bangladesh terms of fish production source income for many fishermen living beside where this study has been conducted from January to December, 2012. This revealed the existing species their composition along with diversity, richness evenness indices. A total 63 fishes have recorded belonging 41 genera, 23 families 9 orders. Cypriniformes was as most diversified group both number individuals observed. Of all found, 41.27%...

Abstract Worldwide, water regulatory structures have impacts on aquatic ecological connectivity. This study determined the effects of current sluice management fish community in Baral River, a major connection to largest wetland (Chalan Beel) Bangladesh. It also examines wider problems for biodiversity conservation (particularly waterbirds) that wetland, which has shrunk 30% its former dry‐season size 50 years. During flood period, peak breeding time native floodplain fishes, sluices were...

The Padma River is one of the longest rivers and it believed to be an important spawning feeding ground for riverine fish species Bangladesh. This study was conducted from February 2013 January 2014 with a view revealing diversity fauna in river. A total 71 were recorded belonging 10 orders, 26 families 54 genera. most dominant order Cypriniformes contributing 28 16 Cyprinidae family 23 Four alien found. Twenty eight have been considered threatened by IUCN These fishes following categories,...

Impacts of ineffective wastewater management on the biodiversity receiving waters in developing countries are poorly documented. Using a before-after-control-impact methodology, we measured effects untreated release fish community Barnoi River, Bangladesh. In 2006, prior to discharge, abundance, species richness and water quality were similar across sampling sites. 2016, after 8 years downstream reach, abundance reduced by >47% >35% respectively at sites compared unaffected upstream...

The fish fauna of the Atrai River were studied for a period two years from January 2011 to December 2012. Sampling was carried out by several fishing nets and traps on fortnight basis. A total 74 species belonging 27 families 52 genera recorded. Cyprinidae most dominant family contributing 18 in 9 genera. Two alien found- Hypophthalmichthys molitrix Hypostomus plecostomus. Thirty locally threatened (Vulnerable 13.51%, Endangered 18.92% Critically 8.11%) But, no globally found. Relative...

This study was carried out in the Mahananda River from January to December 2013 with a view determining seasonal variation and community structure of fishes along some conservation issues. Monthly sampling using traditional fishing gears were identified based on morphometric meristic characters. A total 4082 individuals native fish species captured, analyzed classified into 62 belonging 46 genera, 25 families 9 orders. Cypriniformes Siluriformes dominant orders represented by 19 each most...

The fish fauna of the Atrai River were studied for a period two years from January 2011 to December 2012. Sampling was carried out by several fishing nets and traps on fortnight basis. A total 74 species belonging 27 families 52 genera recorded. Cyprinidae most dominant family contributing 18 in 9 genera. Two alien found- Hypophthalmichthys molitrix Hypostomus plecostomus. Thirty locally threatened (Vulnerable 13.51%, Endangered 18.92% Critically 8.11%) But, no globally found. Relative...

This study was carried out in the Mahananda River from January to December 2013 with a view determining seasonal variation and community structure of fishes along some conservation issues. Monthly sampling using traditional fishing gears were identified based on morphometric meristic characters. A total 4082 individuals native fish species captured, analyzed classified into 62 belonging 46 genera, 25 families 9 orders. Cypriniformes Siluriformes dominant orders represented by 19 each most...

The Padma River is one of the longest rivers and it believed to be an important spawning feeding ground for riverine fish species Bangladesh. This study was conducted from February 2013 January 2014 with a view revealing diversity fauna in river. A total 71 were recorded belonging 10 orders, 26 families 54 genera. most dominant order Cypriniformes contributing 28 16 Cyprinidae family 23 Four alien found. Twenty eight have been considered threatened by IUCN These fishes following categories,...

This study was conducted in Narail district, Bangladesh between January and June, 2012; with a view to describing the status of rice- prawn-finfish based aquaculture practices. Average area plots 0.55±0.44 ha, which mean ditch 4.35±2.02% total land. All farmers dry their made renovation prior start new growing season followed by liming fertilization. No standard stocking density maintained, prawns were stocked at 15895 PL/ha, whereas fin fishes 1551 seeds/ha. Commercial feed applied all...

A variety of methods and gears are being employed across the globe including Bangladesh. This study describes underwater fishing method in Padma River- one three largest rivers Standardised efforts have been made for collecting data interest between September 2016 May 2017. Two types fishing, with or without using oxygen cylinders, were recorded. Mean duration per effort was higher (by 382%) when fishermen used cylinders. water depth sites also cylinders used. Three species finfish (Rita...

Abstract Several studies of temporary floodplain wetlands suggest that flood history is important to microcrustacean egg bank composition and hatching responses. However, these have largely focussed on contrasts among less frequently flooded areas (areas every year once 10–20 years) known about variation at the more end gradient (from multiple floods per 2 years). Similarly, effects duration banks not been examined in detail. Thus, this study examines spatial higher frequencies relation...

Microcrustacea in ephemeral wetlands produce dormant eggs to escape prolonged dry conditions. These can hatch on inundation, although most cases not all during a single wetting event. Incomplete hatching reflect bet-hedging strategies, but also the presence or absence of environmental cues that stimulate hatching. This study examines effects likely change for future, namely, temperature and water depth. Surface sediments collected from anabranches Macintyre River floodplain (eastern...

This study was conducted in Narail district, Bangladesh between January and June, 2012; with a view to describing the status of rice- prawn-finfish based aquaculture practices. Average area plots 0.55±0.44 ha, which mean ditch 4.35±2.02% total land. All farmers dry their made renovation prior start new growing season followed by liming fertilization. No standard stocking density maintained, prawns were stocked at 15895 PL/ha, whereas fin fishes 1551 seeds/ha. Commercial feed applied all...

This study described some biological parameters including lengths, length-length relationships and Fulton’s condition factors of Gagata cenia in the Padma River Bangladesh, based on 1120 specimens collected from May to November, 2012. Maximum 39.78% female fishes were belonging length category 55-60 mm whereas 51.06% male 50-55 mm. The highest mean total lengths found 66.51±10.28 (combined sex), 70.12±09.49 (female) 61.08±09.45 (male) month June. Similar findings are also presented for...

This study described some biological parameters including lengths, length-length relationships and Fulton’s condition factors of Gagata cenia in the Padma River Bangladesh, based on 1120 specimens collected from May to November, 2012. Maximum 39.78% female fishes were belonging length category 55-60 mm whereas 51.06% male 50-55 mm.The highest mean total lengths found 66.51±10.28 (combined sex), 70.12±09.49 (female) 61.08±09.45 (male) month June. Similar findings are also presented for...

Different types of fishing methods and gears are being employed across the globe including Bangladesh. This study describes underwater method in Padma River- one three largest rivers Standardised efforts have been made for collecting data interest between September 2016 May 2017. Two fishing, with or without using oxygen cylinders, were recorded. Mean duration per effort was higher (by 382%) when fishermen used cylinders. water depth sites also cylinders used. Three species finfish (Rita...