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Author AB Thapa |
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Refine your searchEvaluating 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
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Title : Fish Production System In Sunsari And Morang District Material Type: printed text Authors: RB Bhujel, Author ; KP Gautam, Author ; AB Thapa, Author Pagination: 36-44 p. Languages : English (eng) Abstract: A survey on fish production system in Sunsari and Morang Districts was carried out during 2060/2061.
Farmers were interviewed through a semi-structured questionnaire which was modified after pre-testing.
Among the sample farmers, the average family size was 6.9 with an average operational holding of2.7 ha
and 188.24 per cent cropping intensity. Among them 73 per cent had a single pond and 93 per cent had
permanent one with average water surface area of 0.28 and 0.13 ha, respectively. Average number of fries
and fingerlings supplied was 17950 and 3681/ha respectively. Average fish production was calculated as
1282.40 kg/ha. The total variable cost incurred in fish production was found to be Rs. 281 06.14/ha giving a
gross return of Rs. 78111.75/ha. Thus the net profit was obtained as Rs. 50005.61/ha with a benefit cost
ratio of2.78. Fish seed shared maximum cost of35 per cent followed by pond maintenance of27 per cent of
the sample farmers. Only II per cent of the cost was shared by ration. If quality fish seeds are made
available at time, train the farmers to control diseases and upgrade technical know-how, then 69 per cent of
the problems seemed to be solved in fish farming. Farmers seemed taking fish as additional production
irrespective of their investment and did not pay more attention to harvest more yield. There is a scope of
increasing fish yield simply by providing technical services and make them aware of shortcomings in pond
culture. Although the production is comparatively lower than national average, the scope of increasing
production is very high through applying improved technology in pond culture. It is however, profitable to
farmers and the benefit cost ratio can still be increased by applying inputs efficiently.Link for e-copy: http://elibrary.narc.gov.np/?r=273 Fish Production System In Sunsari And Morang District [printed text] / RB Bhujel, Author ; KP Gautam, Author ; AB Thapa, Author . - [s.d.] . - 36-44 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: A survey on fish production system in Sunsari and Morang Districts was carried out during 2060/2061.
Farmers were interviewed through a semi-structured questionnaire which was modified after pre-testing.
Among the sample farmers, the average family size was 6.9 with an average operational holding of2.7 ha
and 188.24 per cent cropping intensity. Among them 73 per cent had a single pond and 93 per cent had
permanent one with average water surface area of 0.28 and 0.13 ha, respectively. Average number of fries
and fingerlings supplied was 17950 and 3681/ha respectively. Average fish production was calculated as
1282.40 kg/ha. The total variable cost incurred in fish production was found to be Rs. 281 06.14/ha giving a
gross return of Rs. 78111.75/ha. Thus the net profit was obtained as Rs. 50005.61/ha with a benefit cost
ratio of2.78. Fish seed shared maximum cost of35 per cent followed by pond maintenance of27 per cent of
the sample farmers. Only II per cent of the cost was shared by ration. If quality fish seeds are made
available at time, train the farmers to control diseases and upgrade technical know-how, then 69 per cent of
the problems seemed to be solved in fish farming. Farmers seemed taking fish as additional production
irrespective of their investment and did not pay more attention to harvest more yield. There is a scope of
increasing fish yield simply by providing technical services and make them aware of shortcomings in pond
culture. Although the production is comparatively lower than national average, the scope of increasing
production is very high through applying improved technology in pond culture. It is however, profitable to
farmers and the benefit cost ratio can still be increased by applying inputs efficiently.Link for e-copy: http://elibrary.narc.gov.np/?r=273 E-copies
http://nkcs.org.np/narc/dl/?r=273URL
in Proceedings of the 7th (seventh) National Workshop on Livestock and Fisheries Research, June 22-27, 2007 / Shrestha, B.S.
Title : Livelihood Assessment Of Capture Fishers Of Koshi River In Nepal Material Type: printed text Authors: RB Bhujel, Author ; AB Thapa, Author ; KP Gautam, Author Pagination: 71-78 p. Languages : English (eng) Abstract: Fish capturing has been found as a basis of livelihoods of people whose main occupation is fishing and
capture fishes to meet their daily needs. People capture fishes generally in public sources like river, lakes
and ponds. Koshi River is one of the most important river systems in Nepal and many capture fishers
depend on it. A study in 2062/063 was carried out with the capture fishers of Koshi River from
Hanumannagar, Koshi Barrage to Chatara side. Most of the capture fishers were Mallah/Bin, Mohamdan,
Manda!, Mushar, Majhi, Khatwe, Chamar, Bantar, Mahato, Majhi and Magar ethnic groups. Among 39
sample-capture-fishers the average family size was 7.56 with 3.97 male and 3.59 female members. Average
school year of male was 7 with 1.48 members and that of female was 1. 79 school years with 0.53 female
?'lemb.ers literate in a family. Average operational land holding was 0.21 ha with 60.19 per cent cropping
mtensity and 28 per cent did not have any holding. None of them had fish pond. Capture fishery contributed
to 64 per cent of their total income and average income was found to be Rs. 34259.62/year. On an average
they captured 3.96 kg of fish per day after 4.82 hours fishing and consumed 7.80 kg of fish per month. They
w~re found suffered from paying certain unofficial tips to local authority. None of them were acquainted
With "~quatic Act, 2055" and 61 per cent insisted in community fish farming. They had realized the
decreasmg trend of high value local species and expect the prohibition on use of gill net especially with
small mesh size.Link for e-copy: http://elibrary.narc.gov.np/?r=279 Livelihood Assessment Of Capture Fishers Of Koshi River In Nepal [printed text] / RB Bhujel, Author ; AB Thapa, Author ; KP Gautam, Author . - [s.d.] . - 71-78 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: Fish capturing has been found as a basis of livelihoods of people whose main occupation is fishing and
capture fishes to meet their daily needs. People capture fishes generally in public sources like river, lakes
and ponds. Koshi River is one of the most important river systems in Nepal and many capture fishers
depend on it. A study in 2062/063 was carried out with the capture fishers of Koshi River from
Hanumannagar, Koshi Barrage to Chatara side. Most of the capture fishers were Mallah/Bin, Mohamdan,
Manda!, Mushar, Majhi, Khatwe, Chamar, Bantar, Mahato, Majhi and Magar ethnic groups. Among 39
sample-capture-fishers the average family size was 7.56 with 3.97 male and 3.59 female members. Average
school year of male was 7 with 1.48 members and that of female was 1. 79 school years with 0.53 female
?'lemb.ers literate in a family. Average operational land holding was 0.21 ha with 60.19 per cent cropping
mtensity and 28 per cent did not have any holding. None of them had fish pond. Capture fishery contributed
to 64 per cent of their total income and average income was found to be Rs. 34259.62/year. On an average
they captured 3.96 kg of fish per day after 4.82 hours fishing and consumed 7.80 kg of fish per month. They
w~re found suffered from paying certain unofficial tips to local authority. None of them were acquainted
With "~quatic Act, 2055" and 61 per cent insisted in community fish farming. They had realized the
decreasmg trend of high value local species and expect the prohibition on use of gill net especially with
small mesh size.Link for e-copy: http://elibrary.narc.gov.np/?r=279 E-copies
http://nkcs.org.np/narc/dl/?r=279URL
