Author details
Author JD Bista |
Available item(s) by this author
Changes In Zooplanktons Community And Density With Reference To Nutrients In A Subtropical Lake Begnas, Pokhara Valley / MA. Husen ; RP Dhakal ; SK Wagle ; JD Bista
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Title : Changes In Zooplanktons Community And Density With Reference To Nutrients In A Subtropical Lake Begnas, Pokhara Valley Material Type: printed text Authors: MA. Husen, Author ; RP Dhakal, Author ; SK Wagle, Author ; JD Bista, Author Pagination: 54-58 p. Languages : English (eng) Abstract: Several species of zooplankton are used as indicators to identify different physico-chemical advection ?r
eutrophic changes in lake. Seasonal variation of zooplanktons and nutrients plays an important role m
ecosystem alteration of aquatic environment. Knowledge on nutrients and plankton dynamic of the lake
provide basis for modality and extent of exploitation of fishery resources of the lakes. Therefore, monthly
zooplankton and nutrients data collected from five different depth gradients of Lake Begnas for year 1995
and 2005 were analyzed and compared to investigate changes in zooplankton community and density.Link for e-copy: http://elibrary.narc.gov.np/?r=276 Changes In Zooplanktons Community And Density With Reference To Nutrients In A Subtropical Lake Begnas, Pokhara Valley [printed text] / MA. Husen, Author ; RP Dhakal, Author ; SK Wagle, Author ; JD Bista, Author . - [s.d.] . - 54-58 p.
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Languages : English (eng)
Abstract: Several species of zooplankton are used as indicators to identify different physico-chemical advection ?r
eutrophic changes in lake. Seasonal variation of zooplanktons and nutrients plays an important role m
ecosystem alteration of aquatic environment. Knowledge on nutrients and plankton dynamic of the lake
provide basis for modality and extent of exploitation of fishery resources of the lakes. Therefore, monthly
zooplankton and nutrients data collected from five different depth gradients of Lake Begnas for year 1995
and 2005 were analyzed and compared to investigate changes in zooplankton community and density.Link for e-copy: http://elibrary.narc.gov.np/?r=276 E-copies
http://nkcs.org.np/narc/dl/?r=276URL Evaluating Growth Performance Of Himalayan Sahar (Tor Putitora) For Aquaculture Development In Mid Idlls And Southern Plain Nepal / JD Bista ; SK Wagle ; MK Shrestha ; AB Thapa
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Title : Evaluating Growth Performance Of Himalayan Sahar (Tor Putitora) For Aquaculture Development In Mid Idlls And Southern Plain Nepal Material Type: printed text Authors: JD Bista, Author ; SK Wagle, Author ; MK Shrestha, Author ; AB Thapa, Author Pagination: 49-53 p. Languages : English (eng) Abstract: Promotion of indigenous species in aquaculture is imperative for sustainable aquaculture production and
conservation of aquatic biodiversity. Indigenous sahar (Tor putitora) constituted substantial natural fishery
in major riverine and lacustrine ecosystem of Nepal in past. Presently their diversity has been threatened by
various anthropogenic activities. With the conservation and aquaculture ·point of view, considerable
development has been achieved on artificial propagation of this species. Performance ofT. putitora on its
growth and yield in different eco-region are under evaluation.
Growth experiment of sahar with different age cohort was conducted in ponds at Pokhara valley and
Tarahara, representing northern mid hill and southern plain, respectively during February 2005 to July 2005.
The growth of sahar was faster in warmer environment as evidenced by significant different (P<0.05) in
body weight gain was found between Tarahara (66.5 g) and Pokhara (52.8 g) after 120 days of rearing of
small size (3.5-4.0 g) sahar at mean water temperature of 26.3 and 29.1 °C, respectively. Differences in
initial stocking size were also found to affect growth rate of sahar. Sahar stocked with initial average weight
of 4.0 g grew at the rate of 0.40 g.day-1 while the growth rate of large size (24.9 g) sahar was 0.49 g.day-1
during February to June in Pokhara and the differences were significant (P<0.05). One-year old fingerling of
sahar (50.9 g) grew much faster (1.12 g.day- 1) and attained final weight of 219.4 g within 150 days in
Tarahara. These results indicate that sahar has a growth potential comparable to that of slow growing
aquacultured species (viz. rohu), but comparatively fetch a very high market price and is of high cultural
value.Link for e-copy: http://elibrary.narc.gov.np/?r=275 Evaluating Growth Performance Of Himalayan Sahar (Tor Putitora) For Aquaculture Development In Mid Idlls And Southern Plain Nepal [printed text] / JD Bista, Author ; SK Wagle, Author ; MK Shrestha, Author ; AB Thapa, Author . - [s.d.] . - 49-53 p.
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Languages : English (eng)
Abstract: Promotion of indigenous species in aquaculture is imperative for sustainable aquaculture production and
conservation of aquatic biodiversity. Indigenous sahar (Tor putitora) constituted substantial natural fishery
in major riverine and lacustrine ecosystem of Nepal in past. Presently their diversity has been threatened by
various anthropogenic activities. With the conservation and aquaculture ·point of view, considerable
development has been achieved on artificial propagation of this species. Performance ofT. putitora on its
growth and yield in different eco-region are under evaluation.
Growth experiment of sahar with different age cohort was conducted in ponds at Pokhara valley and
Tarahara, representing northern mid hill and southern plain, respectively during February 2005 to July 2005.
The growth of sahar was faster in warmer environment as evidenced by significant different (P<0.05) in
body weight gain was found between Tarahara (66.5 g) and Pokhara (52.8 g) after 120 days of rearing of
small size (3.5-4.0 g) sahar at mean water temperature of 26.3 and 29.1 °C, respectively. Differences in
initial stocking size were also found to affect growth rate of sahar. Sahar stocked with initial average weight
of 4.0 g grew at the rate of 0.40 g.day-1 while the growth rate of large size (24.9 g) sahar was 0.49 g.day-1
during February to June in Pokhara and the differences were significant (P<0.05). One-year old fingerling of
sahar (50.9 g) grew much faster (1.12 g.day- 1) and attained final weight of 219.4 g within 150 days in
Tarahara. These results indicate that sahar has a growth potential comparable to that of slow growing
aquacultured species (viz. rohu), but comparatively fetch a very high market price and is of high cultural
value.Link for e-copy: http://elibrary.narc.gov.np/?r=275 E-copies
http://nkcs.org.np/narc/dl/?r=275URL Temporal Change In Phytoplankton Abundance In Lake Phewa, Pokhara / RP Dhakal ; MA. Husen ; SK Wagle ; JD Bista
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Title : Temporal Change In Phytoplankton Abundance In Lake Phewa, Pokhara Material Type: printed text Authors: RP Dhakal, Author ; MA. Husen, Author ; SK Wagle, Author ; JD Bista, Author Pagination: 59-64 p. Languages : English (eng) Abstract: Phytoplankton is one of the key suppliers of energy in aquatic ecosystem. phytoplankton abundance,
composition and activity affect dynamics of other organisms. Since, phytoplankton abundance and growth
condition is important to elucidate fisheries; therefore their abundance was examined from January to
December 2006. A total of twenttthree phytoplankton species were collected, where the mean monthly
abundance was 2.0 xi03 cells.mL· , with relatively higher values during June, August and November (3.1-
4.09 xl03 cells.mL" 1
). The predominant phytoplankton were Microcystis aeruginosa, Merismopedia
tennuissima and Peridinium sp. Among all Dinophyceae and Cyanophyceae increased significantly (P<0.05)
with increasing total phosphorous. The current trend of phytoplankton abundance has been discussed in
relation to fisheries management in Lake Phewa.Link for e-copy: http://elibrary.narc.gov.np/?r=277 Temporal Change In Phytoplankton Abundance In Lake Phewa, Pokhara [printed text] / RP Dhakal, Author ; MA. Husen, Author ; SK Wagle, Author ; JD Bista, Author . - [s.d.] . - 59-64 p.
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Languages : English (eng)
Abstract: Phytoplankton is one of the key suppliers of energy in aquatic ecosystem. phytoplankton abundance,
composition and activity affect dynamics of other organisms. Since, phytoplankton abundance and growth
condition is important to elucidate fisheries; therefore their abundance was examined from January to
December 2006. A total of twenttthree phytoplankton species were collected, where the mean monthly
abundance was 2.0 xi03 cells.mL· , with relatively higher values during June, August and November (3.1-
4.09 xl03 cells.mL" 1
). The predominant phytoplankton were Microcystis aeruginosa, Merismopedia
tennuissima and Peridinium sp. Among all Dinophyceae and Cyanophyceae increased significantly (P<0.05)
with increasing total phosphorous. The current trend of phytoplankton abundance has been discussed in
relation to fisheries management in Lake Phewa.Link for e-copy: http://elibrary.narc.gov.np/?r=277 E-copies
http://nkcs.org.np/narc/dl/?r=277URL