Food and feeding of Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) (Brachyura: Portunidae) along Karnataka coast

The diet of Portunus (Portunus) sanguinolentus and P.(P.) pelagicus Jmlin1y consisted of crustacean Fishes, molluscs, large quantity of unidentified matter and debris. Quantitative analysis of the gut contents revealed that crustaceans contributed to 47.1% and 42.6 %, fish remains 29.0 % and 20.4 %. molluscs 5.7% and 20.0 % detritus 4.9 % and 4.7 % respectively of the gut content by volume in both species respectively. The study indicated that these crabs are primarily predators of sessile and slow moving benthic macro invertebrates

Length-weight relationship in two marine portunid crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) from the Karnataka coast

Portunus (Portunus) sanguinolentus and P.(P.) Pelagicus support fishery of considerable value all along the Indian coast and together contribute up to 96 % of the crab landings. In the context of increased importance of crab resources and interest eltinced in culture, there is an urgent need to study tlie biology and related aspects

Spawning biology of two marine portunid crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) from the Karnataka Coast

Weekly samples of P (P) sallguilloienllls and P (P) pelagicus caught by di !ferent type of gears were taken from Mangalore, Malpe and Karwar - three important fish landing centres in Kamataka during 1992-94 and analysed for carapace width, weight, sex and maturity conditions. For describing the gross maturity stages of ovary, the following stages were recognised. I) immature virgins, 2) immature resting 3) early maturing, 4) late maturing, 5) mature and 6) spent

The portunid crab Charybdis (charybdis) feriatus - An emerging fishery resource of Mangalore coast

The marine crab fishery by mechanised trawlers along the Mangalore coast is mainly supported by those belonging to the genera Portunus and Charybdis of the family Portunidae

Potential new resources of penaeid prawns of the Mangalore coast

Penaeid prawns belonging to the genera Parapenaeopsis, Penaeus and Metapenaeus of the family Penaeidae exploited by mechanised trawlers support a fishery of considerable magnitude along the Mangalore coast. Among the penaeid prawns exploited Metapenaeus dobsoni, M. Monoceros, M. qffinis, Parapenaeopsis stylifera, Penaeus indicus and P. monodon are important and contribute upto 90-99 % of the prawn catch along this coas

Mean first passage times for bond formation for a Brownian particle in linear shear flow above a wall

Motivated by cell adhesion in hydrodynamic flow, here we study bond formation between a spherical Brownian particle in linear shear flow carrying receptors for ligands covering the boundary wall. We derive the appropriate Langevin equation which includes multiplicative noise due to position-dependent mobility functions resulting from the Stokes equation. We present a numerical scheme which allows to simulate it with high accuracy for all model parameters, including shear rate and three parameters describing receptor geometry (distance, size and height of the receptor patches). In the case of homogeneous coating, the mean first passage time problem can be solved exactly. In the case of position-resolved receptor-ligand binding, we identify different scaling regimes and discuss their biological relevance.Comment: final version after minor revision

Activities of Daily Living

The activities of daily living (ADLs) is a term used to collectively describe fundamental skills that are required to independently care for oneself such as eating, bathing, and mobility. The term activities of daily living was first coined by Sidney Katz in 1950. ADL is used as an indicator of a person’s functional status. The inability to perform ADLs results in the dependence of other individuals and/or mechanical devices. The inability to accomplish essential activities of daily living may lead to unsafe conditions and poor quality of life. Measurement of an individual’s ADL is important as these are predictors of admission to nursing homes, need for alternative living arrangements, hospitalization and use of paid home care. The outcome of a treatment program can also be assessed by reviewing a patient’s ADLs. Nurses are often the first to note when patients\u27 functionality declines during hospitalization; therefore, routine screening of ADLs is imperative and nursing assessment of ADL\u27s is performed on all hospitalized patients. Hospitalization for an acute or chronic illness may influence a person’s ability to meet personal goals and sustain independent living. Chronic illnesses progress over time, resulting in a physical decline that may lead to a loss of ability to perform ADL\u27s. In 2011, the United States National Health Interview Survey determined that 20.7% of adults aged 85 or older, 7% of those aged 75 to 84 and 3.4% of those aged 65 to 74 needed help with ADLs

Maturation process and reproductive cycle in two marine crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the Karnataka coast

In the development of ovary of Portunus (Portunus) sanguinolentus and P. (P.) pelagicus, six maturity stages have been recognised by gross examination, i.e., immature virgins, immature resting, early maturing, late maturing, mature and spent. By microscopical studies, nine arbitrary stages have been identifed in the maturation process of ovary. In the development of testis, three maturity stages have been discernible, i. e., immature, maturing and mature. The spawning season is exended from August to May in both the species with intensive activity during December-February in the former and during January-February and September in the latter species

Age and growth in two marine portunid crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the southwest coast of India

Age and growth of two marine protunid crabs, Portunus (Portunus) sanguinolentus and P. (P.) pelagicus was investigated based on the data collected from the commercial catches landed at Mangalore, Malpe and Karwar, three major fish landing centres in Karnataka state, along the southwest coast of India during 1992-'94. The size frequency analysis indicated that the growth rate was high and more or less uniform in juveniles, while the adults showed relatively low rate of growth and marked variation in males and females. In P. (P.) sanguinolentus, the mean monthly growth rates were 10.3 m and 8.8 mm and attained a carapace width of 124.1 and 112.5 mm by males and females respectively on completion of one year. In P. (P.) pelagicus, the average growth rates were 11.0 and 9.6 mm and attained a size of 145.2 and 132.5 mm by males and females respectively, at the end of one year. The von Bertalanffy's growth parameters, L_, K and to were 195 mm, 0.99 yr1 and -0.0132 yr for males and 188 mm, 0.82 yr1 and -0.0975 yr for females. In P. (P.) pelagicus, the growth parameters were 211 mm,. 1.14 yr 1 and -0.0194 yr for males and 204 mm, 0.97 yr1 and -0.0691 yr for females

Effects and consequences of small-scale cage culture technology adoption in Kerala

Small-scale fish farming is critical in ensuring food security and employment in many developing countries. Small-scale cage culture for Etroplus suratensis was introduced in the state by the Department of Fisheries, Government of Kerala with the same objectives. The demand for the species has shown considerable increase in the recent years and f m gate prices are as high as Rs 450kg in the peak season. Elevation to the status of State Fish has also helped the culture of the species in attracting the attention of policy makers leading to promotion of its culture. Cage culture in brackishwater bodies, a relatively new technology to the State, was popularized among the tsunami affected fishermen along with extension and technical support. The implementation of cage culture was promoted through the Brackishwater Fish Farmers' Development Agency (BFFDAs) and Agency for Development ofAquaculture Kerala (ADAK), two subsidiaries of the Department of Fisheries, Government of Kerala. The present study probes the effects and consequences of cage culture technology adoption among farmers based on primary data collected from sample respondents during the initial year of culture