Indigenous knowledge systems of maritime communities of Visakhapatnam coast

This paper delineated the indigenous knowledge system of fishing communities of Visakhapatnam district. The present study is undertaken to bring out the present status of fishing communities inhabiting the Visakhapatnam district and their techno housing types, demographic profiles, economic aspects of the fishing communities have been described in detail

Traditional technological aspects of fishing crafts in North Coastal Andhra Pradesh, East Coast of India

The study focuses on different types of boats used in marine fishing by traditional communities inhabiting the northeast coastal Andhra Pradesh. These boats area grouped into tied, stitched and moulded. A few of these prototypes of mechanised boats are added by mechanical devices. All these boats are fabricated by indigenous technologies by using local materials. The fabricators are illiterate fishing people. Their ingenuity of maintaining ratios in relation to keel, stem, hull, mast and rudder of a boat to navigate on open sea is astonishing. Further, the study discusses different types of nets used in harvesting various types of fish. The other fishing paraphernalia like hooks, lines, lures etc are also discussed

Analysis of the nutritive composition of wild and farmed tiger shrimp Penaeus monodon fabricius

The present study was undertaken to estimate and compare the nutritive value (moisture, protein, fat, carbohydrate, calcium, phosphorus, iron) of peeled tails of wild and farmed shrimp Penaeus monodon as there is a misnomer that farmed shrimp has high fat/cholesterol content compare to wild shrimp and also wild shrimp is highly nutritious than farmed tiger shrimp. The percentage moisture content in the peeled tails of tiger shrimp specimens collected from coastal waters varied from 73% to 76.74% with an average of 74.83 %, protein content ranged between 19.5% and 21.0% with an average of 20.17%. The fat content varied from 3.2% to 5.0% with an average to 4.06%, carbohydrate content ranged between 0.07% and 1.09% with an average of to 0.64% and ash content varied between 0.43% and 0.55% with an average of 0.49 %. The phosphorus (as phosphate) content ranged from 923 to 1407 and averaged 1272 mg/l00g. The iron (ppm) concentration fluctuated between 79.61 and 93.19 and averaged to 89.04 ppm. From Brackish waters the percentage of moisture content ranged from 73.84 % to 76.14 % and averaged to 75.36%, percentage protein content varied from 18.1% to 20.1% and averaged to 19.05%. The percentage fat content varied from 3.09% to 5.44% and averaged to 4.06%, percentage carbohydrate content varied from 0.29% to 1.79% and averaged to 0.94% and ash content fluctuated from 0.45% to 2.74% and averaged to 1.01%. The phosphorus content ranged between 747 and 1025 and averaged to 888 mg/l00g and calcium content ranged between 186 and 501 and averaged to 375 mg/l00g. Iron concentration varied between 82.01 and 112.06 ppm and averaged to 100.45 mg/l00g

Relationship of grain iron and zinc content with grain yield in pearl millet hybrids

Development of pearl millet cultivars with high levels of grain iron (Fe) and zinc (Zn) content can make significant contribution to reducing widespread deficiencies of these micronutrients in populations heavily dependent on staple cereals for their dietary energy and nutritional requirements. It is imperative that breeding of such cultivars must not compromise on grain yield and farmer-preferred traits. Multi-location evaluation of two sets of hybrids with differing genetic composition showed that Fe and Zn contents had highly significant and high positive correlations in both sets of hybrids and in all environments, and they were not correlated with grain weight, implying simultaneous genetic improvement of both micronutrients in large-seeded background is likely to be effective. Both micronutrients had moderate to low negative correlations with grain yield in both sets of hybrids, although not always significant. Such associations might have resulted due to the involvement of inidia germplasm as a common“Source— of high Fe and Zn content in both male and female parents, thereby reducing the genetic diversity between the parental lines for traits associated with heterosis for grain yield. Whether this could also be due to natural negative association between genetic factors for these micronutrients on one hand and grain yield on the other merits further studies through selection experiments using genomic tools as the resolution of this issue has a direct bearing on breeding high-yielding hybrids with high levels of Fe and Zn content in pearl mille

Non-resonant microwave absorption studies of superconducting MgB_2

Non-resonant microwave absorption(NRMA) studies of superconducting MgB_2 at a frequency of 9.43 GHz in the field range -50 Gauss to 5000 Gauss are reported. The NRMA results indicate near absence of intergranular weak links. A linear temperature dependence of the lower critical field H_c1 is observed indicating a non s-wave superconductivity. However, the phase reversal of the NRMA signal which could suggest d-wave symmetry is also not observed.Comment: 8 pages, 2 figure

An assessment of the Indian Ocean mean state and seasonal cycle in a suite of interannual CORE-II simulations

We present an analysis of annual and seasonal mean characteristics of the Indian Ocean circulation and water masses from 16 global ocean–sea-ice model simulations that follow the Coordinated Ocean-ice Reference Experiments (CORE) interannual protocol (CORE-II). All simulations show a similar large-scale tropical current system, but with differences in the Equatorial Undercurrent. Most CORE-II models simulate the structure of the Cross Equatorial Cell (CEC) in the Indian Ocean. We uncover a previously unidentified secondary pathway of northward cross-equatorial transport along 75 °E, thus complementing the pathway near the Somali Coast. This secondary pathway is most prominent in the models which represent topography realistically, thus suggesting a need for realistic bathymetry in climate models. When probing the water mass structure in the upper ocean, we find that the salinity profiles are closer to observations in geopotential (level) models than in isopycnal models. More generally, we find that biases are model dependent, thus suggesting a grouping into model lineage, formulation of the surface boundary, vertical coordinate and surface salinity restoring. Refinement in model horizontal resolution (one degree versus degree) does not significantly improve simulations, though there are some marginal improvements in the salinity and barrier layer results. The results in turn suggest that a focus on improving physical parameterizations (e.g. boundary layer processes) may offer more near-term advances in Indian Ocean simulations than refined grid resolution

Not Available

Not AvailableThe study focuses on different types of boats used in marine fishing by traditional communities inhabiting the northeast coastal Andhra Pradesh. These boats area grouped into tied, stitched and moulded. A few of these prototypes of mechanised boats are added by mechanical devices. All these boats are fabricated by indigenous technologies by using local materials. The fabricators are illiterate fishing people. Their ingenuity of maintaining ratios in relation to keel, stem, hull, mast and rudder of a boat to navigate on open sea is astonishing. Further, the study discusses different types of nets used in harvesting various types of fish. The other fishing paraphernalia like hooks, lines, lures etc are also discussed.Not Availabl

Not Available

Not AvailableThe study focuses on different types of boats used in marine fishing by traditional communities inhabiting the northeast coastal Andhra Pradesh. These boats area grouped into tied, stitched and moulded. A few of these prototypes of mechanised boats are added by mechanical devices. All these boats are fabricated by indigenous technologies by using local materials. The fabricators are illiterate fishing people. Their ingenuity of maintaining ratios in relation to keel, stem, hull, mast and rudder of a boat to navigate on open sea is astonishing. Further, the study discusses different types of nets used in harvesting various types of fish. The other fishing paraphernalia like hooks, lines, lures etc are also discussed.Not Availabl

Not Available

Not AvailableThe present study was undertaken to estimate and compare the nutritive value (moisture, protein, fat, carbohydrate, calcium, phosphorus, iron) of peeled tails of wild and farmed shrimp Penaeus monodon as there is a misnomer that farmed shrimp has high fat/cholesterol content compare to wild shrimp and also wild shrimp is highly nutritious than farmed tiger shrimp. The percentage moisture content in the peeled tails of tiger shrimp specimens collected from coastal waters varied from 73% to 76.74% with an average of 74.83 %, protein content ranged between 19.5% and 21.0% with an average of 20.17%. The fat content varied from 3.2% to 5.0% with an average to 4.06%, carbohydrate content ranged between 0.07% and 1.09% with an average of to 0.64% and ash content varied between 0.43% and 0.55% with an average of 0.49 %. The phosphorus (as phosphate) content ranged from 923 to 1407 and averaged 1272 mg/l00g. The iron (ppm) concentration fluctuated between 79.61 and 93.19 and averaged to 89.04 ppm. From Brackish waters the percentage of moisture content ranged from 73.84 % to 76.14 % and averaged to 75.36%, percentage protein content varied from 18.1% to 20.1% and averaged to 19.05%. The percentage fat content varied from 3.09% to 5.44% and averaged to 4.06%, percentage carbohydrate content varied from 0.29% to 1.79% and averaged to 0.94% and ash content fluctuated from 0.45% to 2.74% and averaged to 1.01%. The phosphorus content ranged between 747 and 1025 and averaged to 888 mg/l00g and calcium content ranged between 186 and 501 and averaged to 375 mg/l00g. Iron concentration varied between 82.01 and 112.06 ppm and averaged to 100.45 mg/l00g.Not Availabl