scholarly journals Relationship between Fish Seed Production and Inland Fish Production of West Bengal, India

2017 ◽  
Vol 2 (2) ◽  
pp. 1-3
Author(s):  
Ambalika Ghosh ◽  
B K Mohapatra ◽  
Ajit Kumar Roy
Keyword(s):  
Seed Production ◽  
West Bengal ◽  
Fish Production

Influence of GA3 on hybrid rice seed production in West Bengal

2020 ◽  
Vol 16 (3) ◽  
pp. 136-142
Author(s):  
S. BISWAS ◽  
S. K. BORDOLUI ◽  
P. CHATTOPADHYAY
Keyword(s):  
Seed Production ◽  
West Bengal ◽  
Hybrid Rice ◽  
Rice Seed

First Record of Chilodonella hexasticha (Kiernik, 1909) Kahl, 1931 (Ciliophora: Chilodonellidae) infesting a freshwater fish Nandus nandus (Hamilton) from Gangetic West Bengal, India

2004 ◽  
Vol 54 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Amlan Kumar Mitra ◽  
Durga Haldar
Keyword(s):  
Freshwater Fish ◽  
Developing Country ◽  
West Bengal ◽  
First Record ◽  
Mass Mortality ◽  
Major Portion ◽  
Fish Stock ◽  
Fish Production ◽  
Total Fish ◽  
Fish Yields

AbstractWest Bengal, situated in the eastern part of the country, is one of the most beautiful and important states of India. In a developing country like India, fish is one of the cheapest sources of protein and West Bengal contributes a major portion of the total fish production. Fishery development represents a vital sector in West Bengal. The degree of success in this sector depends to a great extent on the advancement of fish parasitology research, as it is evident that the increase of fish yields can only be achieved from healthy fish stock. During an investigation (July 2001 - December 2002), a protozoan ectoparasite, Chilodonella hexasticha (Kiernik, 1909) Kahl, 1931, was found on the gills of a freshwater fish Nandus nandus (Hamilton). This finding is very important for the fishery sector, as this parasite causes the disease chilodonellosis, which leads to mass mortality. The present paper deals with the morphology, systematics, seasonal incidences and prevalence of C. hexasticha.

scholarly journals Fish community structure and ecological degradation in tropical rivers of India

Web Ecology ◽  
2006 ◽  
Vol 6 (1) ◽  
pp. 27-36
Author(s):  
D. Chakrabarty ◽  
S. K. Das
Keyword(s):  
Community Structure ◽  
Fish Community ◽  
West Bengal ◽  
Management Program ◽  
Fish Production ◽  
Tropical Rivers ◽  
Fish Community Structure ◽  
Eastern Province ◽  
Annual Cycles ◽  
Rational Management

Abstract. Fish community structure and water chemistry of two tropical rivers of West Bengal, an eastern province of India, were studied for two annual cycles (January 2003–December 2004). Water quality and fish community structure reflected a higher degree of pollution in the Churni river than in the Jalangi river. We observed that 63.6% of fish species had disappeared from the polluted Churni river in 20 yr. For protection of fish biodiversity and enhancement of fish production, a rational management program should be implemented in Churni river. Warning: Triplicate publication

scholarly journals IMPROVEMENT OF SEED PRODUCTION AND QUALITY GROUPER BY HYBRIDIZATION PROGRAM

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Suko Ismi ◽  
Yasmina Nirmala Asih ◽  
Daniar Kusumawati
Keyword(s):  
Genetic Variation ◽  
Survival Rate ◽  
Seed Production ◽  
Production Quality ◽  
Hybrid Seed Production ◽  
Fish Production ◽  
Hybrid Grouper ◽  
Hybrid Seeds ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper

<p>Several types of grouper hybrid seeds can now be massively produced in a hatchery. Hybrid seeds can increase diversification of aquaculture species and potential to increase fish production.  Therefore, an  improvement in hybrid seed production both in high quantity and quality is very important. This research was conducted to produce massively cantik grouper hybrid seeds i.e.,a crossbreed between female tiger grouper (Epinephelus fuscoguttatus) and male marbled grouper (Epinephelus microdon). This research examined the cantik grouper seed production compared with the production of tiger grouper and marbled grouper fingerlings. The research results showed that cantik hybrid grouper seeds production had higher survival rate (24.59%) than tiger grouper (17.44%) and marbled grouper (4.63%). The total length of the seed at the age of 45 days for cantik grouper  was 3.59 ± 0.21 cm, tiger 3.24 ± 0.55 cm, and batik 2.61 ± 0.42 cm, respectively. Seed abnormality for cantik grouper was 4.13%, tiger grouper 30.21%, and marled tiger 0.57%, respectively. Based on genetic variation analyses, the cantik grouper had a closer genetic relationship with the marbled grouper compared with the tiger grouper.</p> <p>Keywords: Marbled grouper, hybridization program, seeds production, quality</p>

scholarly journals Emerging Sustainability Issues And Management Needs Of Booming Aquaculture Production Of Introduced Pangasianodon Hypophthalmus (Sauvage 1878)

2020 ◽  
Vol 4 (2) ◽  
pp. 1-8
Author(s):  
Singh AK ◽  
Keyword(s):  
Seed Production ◽  
Andhra Pradesh ◽  
West Bengal ◽  
Uttar Pradesh ◽  
Small Farmers ◽  
Pangasianodon Hypophthalmus ◽  
Aquaculture Production

Pangasius production has greatly expanded in India covering over 42,500 ha of ponds and tanks and also 2500 cages. It is mostly produced in small ponds (0.4 ha) by small farmers commonly producing 40-45 tons/ha but larger ponds above 4 ha having 1.5 to 2 m deep are many producing 80-85 tons/ha. West Bengal is the main hub of seed production, supplying over 700 million fry, while few commercial nurseries and hatcheries have recently come up in the states of Andhra Pradesh, Chhattisgarh, Odisha and of late Uttar Pradesh.

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