Socio - economic implications of purse seine operations in Karnataka

The total marine fish production in India rose from about 0.9 million tonnes in 1969 to about 1.4 million tonnes in 1978. One of the major reasons for the increase in production is the mechanisation of fishing operations. The present account deals with the findings of an investigation to study the socioeconomic consequence on Rampani fishennen due to commercial purse seine operations in the Kamataka waters. The article incorporates some of the results of an earlier study (Dharmaraja and Jacob, MS) and the information obtained from a special survey in the Kamataka coastal villages recently conducted by a team of scientists of C.M,F.R.I. A perusal of the gearwise estimates of marine fish landings in the Kamataka coast shows that the landings from purseseines have been steadily increasing during the years 1977to 1979 (1st half)

Rationality of the use of factors of production by small trawlers along Calicut coast

The purpose of the present study is to evaluate the economic rationale of input use by small trawlers in Kerala Coast. In order to estimate the production elasticities of different inputs, a Cobb- Douglas type of production function was fitted to the pooled data on coast and earnings of 50 trawlers for a period of 10 years from 1971-72 to 1980-81, obtained from Kozhikode Regional Fish Marketing Co-operative Society. For functional analysis, vessel-wise gross returns (in rupees) was taken as dependent variable and number of days fished, fuel expenditure (in rupees) and repairing and maintenance charges (in rupees) as independent variables. Marginality analysis was also done to evaluate the eflSciency of input use. The production function as well as the marginality analysis indicated that the increase in the number of days fished would lead to higher gross income. So also increase in oil expenditure from mean level would yield a more than proportionate increase in gross income. However, repairing and maintenance cost had a negative impact on fishing income which indicated that the vessel owner in his own interest should be cautious in the operation to avoid frequent repairs and to reduce the delay in getting the vessels repaired

Seizing opportunities to diversify conservation

Conservation Letters published by Wiley Periodicals, Inc. This article identifies, and offers several ways to address, a serious, persistent issue in conservation: low levels of diversity in thought and action. We first describe the lack of diversity and highlight the continued separation of the environmental conservation and environmental justice movements. We then offer—based on previous research and our collective experience—two suggestions for how to increase inclusivity (a step farther than increasing diversity) in holistic ways. We suggest that embracing narrative, including historical narrative that can be profound and painful, may be essential to addressing this deeply rooted issue. We also suggest the need to redefine “environment” to more closely align with the diversity of perspectives that different people and disciplines bring to the topic. We support our suggestions with selected data from empirical research and provide examples of initiatives that embody them

Evaluation of sampling gear for demersal resource surveys

The three demersal trawls evaluated were 38 m HSDT-II, indigenously developed by CIFT for deep sea fishing in Indian EEZ; and two imported designs, viz., 45.6 m Expo model demersal trawl and 50 m fish trawl operated from vessels of FSI and IFP, respectively. Vertical opening at trawl mouth was heighest for 50 m fish trawl (3.2 m), followed by Expo model demersal trawl (2.5 m) and 38 m HSDT-II (2.2 m), due to differences in overall dimensions and design features. Estimate of horizontal opening between otter boards was highest for 38 m HSDT-II probably due to low drag of the gear, followed by 45.6 m and 50 m trawls. Lowest catch per unit effort obtained by 38 m HSDT-II is presumably due to smaller dimensions of the gear, larger codend mesh size and difference in ground rig, in addition to chance factors. However, 38 m HSDT-II scores on several features desirable in demersal sampling gear such as simplicity in design and construction, ease of operation; lower twine surface area and drag; and ground rig suitable for wider range of bottom conditions. Modifications to make it more effective while sampling for crustaceans and small sized finfish components are described

A bibliography of parasites and diseases of marine and freshwater fishes of India

With the increasing demand for fish as human food, aquaculture both in freshwater and salt water is rapidly developing over the world. In the developing countries, fishes are being raised as food. In many countries fish farming is a very important economic activity. The most recent branch, mariculture, has shown advances in raising fishes in brackish, estuarine and bay waters, in which marine, anadromous and catadromous fishes have successfully been grown and maintained

Asia And Western Dominance : A Survey Of The Vasco Da Gama Epoch Of Asian History 1498-1945

London350 p.: illus.; maps; 22 c