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Vol. 48(2), 2016

Journal of the Inland Fisheries Society of India



GENETIC DIVERSITY OF FRESHWATER MURREL, CHANNA PUNCTATUS (BLOCH, 1793)

ANKUR KASHYAP, MADHU AWASTHI, MINAKSHI SINGH  and MOHAMMAD SERAJUDDIN

Genetic variation of freshwater murrel, Channa punctatus populations was analyzed using random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR). 50 loci were amplified out of which 44 (88%) and 6 (12%) were polymorphic and monomorphic respectively indicating high percentage of polymorphism. Highest polymorphism with 35 (70%) polymorphic loci and maximum gene diversity of 0.2031 was found in the river Gomti, whereas polymorphic loci in the population from pond of Kolkata and Malihabad was 26 (52%) and 19 (38%) respectively. The dendogram discriminated the three populations of C. punctatus on the basis of genetic distance.
(Page No:-01-07)
AECOLOGY AND FISHERY STATUS OF UKAI RESERVOIR, GUJARAT

DIBAKAR BHAKTA AND D. S. K. RAO

The study dealt with the ecology and fish diversity of Ukai reservoir, Gujarat, which was undertaken during July 2014 to August 2015. During the study 50 fish species belonging to 9 orders, 17 families and 38 genera were recorded. The order Cypriniformes was dominant with 22 species followed by Siluriformes with 12 species. The most abundant species in the reservoir were Catla catla, Labeo rohita, Cirrhinus mrigala, Labeo calbasu, Wallago attu, Sperata aor, Systomus sarana, Clupisoma garua, Macrobrachium rosenbergii and Ompok bimaculatus. A total 34 lakh fingerlings of Indian major carps namely catla, rohu and mrigal were stocked in the reservoir during 2013-14, which reflects in the production trend. Fish production data (2014-15) of the reservoir showed that carps contributed 50.68% of the total production followed by catfishes 10.04%, murrels 3.0%, eels 2.86 and others 33.43% with productivity of the reservoir at 279 kg ha -1. Species like Tenualosa ilisha, Tor tor, S. seenghala, S. aor, Labeo fimbriatus and W. attu gradually decreased over the years after impoundment. The study indicated that Ukai reservoir is rich in fish diversity Regular stocking, fishing ban during breeding season, etc. would sustain the fish diversity of the reservoir.
(Page No: 08-13)
TROPHIC STATUS AND FISH YIELD POTENTIAL OF PAHUJ RESERVOIR, UTTAR PRADESH

SURAJIT K. BANIK, A. WANGANEO1 AND A. K. DAS

Pahuj, a small reservoir, located at Jhansi in Uttar Pradesh was investigated during April 2006 to March 2009 for evaluating fish yield potential. The reservoir receives a portion of Jhansi city sewage through Pahuj River. As per the physico-chemical parameters, the reservoir has been categorized as eutrophic. Average fish yield during 1994-95 to 2008-09 was 142.03 kg ha-1year-1, whereas during study period (2006-07 to 2008-09) it was 286.43 kg ha-1year-1. The potential fish yield was estimated using morpho-edaphic index, which revealed that the reservoir have potential to produce up to 560.78 kg ha-1year-1. Thus, there is scope for enhancing the fish yield in the reservoir if proper management measures are adopted.
(Page No:14-18)
AQUACULTURE PRACTICES IN SMALL MULTIPLE-USE WATER BODIES IN ODISHA, INDIA

NAGESH KUMAR BARIK

Small multiple-use freshwater resources are widely distributed across the country and used for aquaculture in a diverse way in addition to other use like irrigation, sanitations, navigation, etc. The paper makes an assessment of the state of aquaculture in these water bodies in Odisha. The study was conducted in two agro-climatic regions i.e. eastern hill and plateau region and eastern coastal plain regions in the state, covering 83 water bodies in 62 villages during 2011-2013. Various management and technological interventions for aquaculture development were assessed. The average productivity was found to be 317 kg/ha, which was significantly less compared to commercial aquaculture practices. There is considerable scope for increase of fish production through application of scientific aquaculture practices.
(Page No: 19-28)
Information management behaviour and socio economic empowerment of Manipuri rural women participated in fisheries in manipur

Waikhom Tomthinnganba Meetei, Biswarup Saha and Aparna Roy

The study, investigated the information management behavior and socio-economic empowerment of women, who participated in fisheries activities in Manipur. One hundred and twenty women formed the sample for the study. The Information Management Behaviour of the women was operationalised as the process of identification and collection of information on fisheries technologies of origin, evaluating, storing, updating and retrieving it whenever necessary. Majority of the respondents belonged to medium category of (64.2%) information management behaviour, followed by low (18.3%) and high (17.5%) categories. Majority of the respondents used personal contacts for seeking information on different aspect of fisheries. Around 97.5 % of the respondents had the habit of evaluation of the information through discussion with the family members followed by discussion with neighbours and on the light of past experiences. Almost 94% of the respondents followed the method of 'memorization' for storage of farm information and 33.33% of the respondents were 'taking down in a note book/diary for storage of farm information. Chi-square showed highly significant association between empowerment and information management behaviour of the sampled women in the study area. Positive and significant relationship was also found between information management behavior of women with their education, level of participation in fisheries activities, experience in fisheries, management orientation, economic motivation, annual income and knowledge level.
(Page No:29-37)
PERCEPTION OF AQUACULTURE EXTENSION PERSONNEL ON INFORMATION TECHNOLOGY ENABLED EXPERT SYSTEM FOR SHRIMP AQUACULTURE
 

M. ALAGAPPAN AND M. KUMARAN

Shrimp aquaculture is a knowledge intensive and high value farming enterprise in the coastal agro-ecosystems. An Expert System for Shrimp Aquaculture (ESSHA) was developed mainly for the knowledge management of field extension personnel using Visual Basic 6.0 and MS Access on Better Management Practices of shrimp farming. Its perceptions on the attributes of the expert system were studied among the end users i.e., aquaculture extension personnel. ESSHA was perceived as highly informative, less complex and compatible. It was validated for its technicality, feasibility and user friendly design. ESSHA as a knowledge management tool could be employed by research and development agencies for capacity building of the extension personnel and other end users including aqua farmers.
(Page No:38-47)
STATUS AND PROSPECTS OF FISH AND FISH PRODUCT MARKETING IN KARNATAKA

LOKESH, G. B. AND GAJENDRA KHIDRAPURE

The structure and performance of fish and fish products marketing in Karnataka was analysed through a combination of primary and secondary collection of information. Data were obtained from annual reports of fisheries department. Karnataka is one of the most important States contributing 4.75% of India's total fish production. The contribution of Fisheries Sector to GSDP at current prices during 1993-94 was Rs. 16,316 lakhs and it has increased to Rs. 286273 lakhs in 2012-13. The policy suggestions for further development of fisheries sector are: Strengthening of fish marketing by developing strong marketing networks through Fisheries Corporation's cold chain; Development of Inland Fisheries by proper incentives to farmers for taking up fish rearing and to strengthen fisheries research and education; Creation of Reservoir Development Authority for better management of the reservoirs; Fish seed rearing may be encouraged by involving private entrepreneurs to use public water body; Use of ICT for Inter connection and co-ordination of fish farms; Promote Ornamental fish production and marketing, and bring comprehensive policy for protecting water resource bodies and their flora and fauna.
(Page No:48-55)
Perceived Effectiveness of indigenous technical knowledge on fish production practices in Assam

Rajita Devi, Biswarup Saha, Arun Pandit and Dipanjan Kashyap

A total of 23 indigenous technical knowledge (ITK) on fish production practices in Nagaon district of Central Assam were documented. Pond preparation and renovation (22.22%), water quality management of fish pond (27.78%), stocking managment (16.67%), fish feeding management (33.33%) and disease and pest control constituted the major categories of indigenous technical knowledges. Scientific rationality, awareness and adoption among farmers regarding these ITKs were analysed and 17 rationale practices as perceived by the experts were studied further to examine their perceived effectiveness. The scientific rationale/operational principles behind 17 rational ITKs were also elucidated in this study. Farmers' knowledge on a majority of selected ITK was good with more than 50% of the sampled farmers (51.25 to 84.50% per practice) were having awareness on 12 practices. Four practices were adopted by more than 50 % of the farmers. Of the 17 ITKs studied for effectiveness, 7 were perceived as highly effective by the farmers as well as experts from the particular location, implying that many indigenous practices were both rational as well as effective. This calls for more scientific intervention to validate the indigenous knowledge.
(Page No:56-67)
Effect of high stocking density of Indian major carps on growth, survival and production in poly culture system

Dhiren ch. Nath and Kamaleswar Kalita

In fish culture species combinations, carrying capacity and intensity of management operation are important issues and stocking density often influence the growth. This study tried to investigate the effects of various stocking densities of Indian major carp to the growth performances, survival and total production. The stocking densities tested were 10000 to 50000 fingerlings ha-1 along with 5500 fingerlings ha-1 as control, in eighteen cisterns of 0.003 ha each for a period of 90 days under standard conditions of poly culture system with probable impacts of other environmental criteria. It was recorded that growth of all the species decreased with increase in stocking densities, with mean size of harvest recorded the highest in control group (167.77±1.50 g) and the lowest in 50000 fingerlings ha-1 group (74.79±1.46 g).
(Page No:68-73)
INDUCED BREEDING OF SYSTOMUS SARANA (HAMILTON, 1822) UNDER CAPTIVE CONDITION

HIRAK SARKAR AND DIBAKAR BHAKTA

Systomus sarana (olive barb) locally known as 'Sar-punti' has commercial importance both as food fish and ornamental fish. The species is reported to be vulnerable in India and critically endangered in Bangladesh. The population of the species from natural water bodies of Tripura declined over the years due to various ecological changes and over exploitation. S. sarana were bred through induced breeding with 'Wova-FH' as inducing agent at Lembucherra, Government fish seed farm under Department of Fisheries, Government of Tripura. Five sets of experiments were conducted during the month of June-August 2013 to find out most suitable sex ratio and month for breeding in the State in respect of ovulation, fertilization and hatching rate. Single dose of injection was given with 0.4 ml and 0.25 ml per female and male respectively. The interval between injection and spawning was 6-9 hours. 100% ovulation was recorded for all the five set of experiments while highest fertilization rate was recorded at 93.15±5.55% and hatching rate (79.50±3.51%) when sex ratio was maintained at 1:1 in July (set IV). Hatching period was 14-17 hours at 29.85 ± 1.55 oC. The study would be beneficial for successful captive breeding of S. sarana in the north eastern State like Tripura.
(Page No:74-79)
TEMPORAL PLANKTON COMMUNITY STRUCTURE (PCSM) FOR AQUACULTURE PLANNING IN UNMANAGED PONDS

Roy, K.

The study deals with development of a tool called PCSM, which can aid region specific, eco-based and climate change resilient aquaculture planning in unmanaged ponds. Based on the monthly distribution of phytoplankton and zooplankton groups, temporal variations in the annual plankton community structure were mapped for urban and rural ponds of Raipur, Chhattisgarh. The maps were created in SigmaPlot v11.0. The maps consisted of multiple spline curves with 5% scientific padding. The applicability of PCSM includes: timing the release of fish seeds just before the burst phase of the preferred plankton groups; implementation of fertilization programme as the burst phase starts to drop for sustaining preferred plankton groups for longer duration; and harvesting during the lag phases. The limitations of PCSM includes: applicable to small closed water bodies like ponds where plankton dynamics is predictable; region specific; and it is more applicable in the planning of 'modified-extensive aquaculture' which depends exclusively on plankton. Observations and recommendations based on PCSM are discussed in this paper for ponds of the region.
(Page No:80-87)
Food and Feeding Habits of Channa punctatus (Bloch, 1973) from Water Bodies of Nadia District, West Bengal

RUPALI CHAKRABORTY, SUDHIR KUMAR Das and DIBAKAR BHAKTA

Food and feeding habits of Channa punctatus (Bloch, 1793) was investigated from the water bodies of Nadia district, West Bengal during October 2003 to May 2004. A total 348 specimen were examined in two groups viz., group I (less than 110 mm) and group II (more than 110 mm) for convenience of discussion. The average RLG value for the group I was 0.65 and group II as 0.75. The average GaSI value was 3.77 during October and 3.62 during November when sexes could not be identified due to rudimentary stages of the gonads. The highest value of GaSI for male was recorded during February (3.24) and lowest during May (2.28) and for females the value was 3.27 during February and 2.06 during May. There was significant variation (P<0.05) in GaSI values during the period of study. The food items observed in the guts were insects, fishes, crustacean, molluscs, worms, animal matter, decayed organic matter, algae, plant matter, sand, mud and miscellaneous items. Fish was the principal food item, followed by insects and crustaceans.
(Page No:88-92)
SHORT   COMMUNICATION
Gonadosomatic index of Nandus nandus (Hamilton, 1822)


SHARMISTHA PAUL and SUSHIL KUMAR SARMAH
(Page No:93-94)

 

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