33 research outputs found
Adding Entrepreneurship to India’s Science, Technology & Innovation Policy
Science, Technology & Innovation Policy (STIP) is an important policy instrument particularly in the developing countries. India also has recognized the role of science, technology and innovation in development as early as 1958 but still trails behind its peer Brazil, China and the Asian tiger Singapore. Considering strong correlation between research and development investment and growth based on existing studies, this paper brings forth the present situation of India in investment and its influence on the performance of the economy vis-à-vis the three countries. This paper studies the STIP 2013 in detail and reports the contribution of the Department of Science and Technology in India. The main conclusion of this paper is the recommendation for incorporation of “entrepreneurship” in STIP based on global best practices, which can be achieved by government’s involvement as a venture capitalist to seed and support innovations, increasing transparency and incorporating entrepreneurial curriculum
Induction of hypochromic macrocytic anaemia in Oreochromis hybrid (cichlidae) exposed to 100mg/l (sublethal dose) of aluminium
The haematology of Oreochromis hybrid locally cultured for human consumption was investigated after exposing the fishes for 8 weeks to a sublethal dose of 100mg/L aluminium. The haematological changes based on the examination of blood variables during the 2, 4, 6 and 8 weeks of exposures have been reported. The physiological changes brought by the sublethal dose of aluminium in Oreochromis hybrid direct towards a normochromic microcytic anaemia which gradually progresses upon prolonged exposure to a normochromic macrocytic one, eventually becoming hypochromic macrocytic after 8 weeks (long term) exposure. In this instance, these changes have been attributed to the swelling of the red blood cells, haemodilution and impaired haemoglobin synthesis as a result of persistent low haematocrit and haemoglobin concentration recorded.Keywords: Oreochromis hybrid, fish, anaemia, aluminium, sublethal, haematology
Temporal asymmetries in the feeding patterns along the tidal cycle in two sympatric littoral blennies
Discovery of New Hydrothermal Activity and Chemosynthetic Fauna on the Central Indian Ridge at 18°–20°S
Indian Ocean hydrothermal vents are believed to represent a novel biogeographic province, and are host to many novel genera and families of animals, potentially indigenous to Indian Ocean hydrothermal systems. In particular, since its discovery in 2001, much attention has been paid to a so-called ‘scaly-foot’ gastropod because of its unique iron-sulfide-coated dermal sclerites and the chemosynthetic symbioses in its various tissues. Despite increasing interest in the faunal assemblages at Indian Ocean hydrothermal vents, only two hydrothermal vent fields have been investigated in the Indian Ocean. Here we report two newly discovered hydrothermal vent fields, the Dodo and Solitaire fields, which are located in the Central Indian Ridge (CIR) segments 16 and 15, respectively. Chemosynthetic faunal communities at the Dodo field are emaciated in size and composition. In contrast, at the Solitaire field, we observed faunal communities that potentially contained almost all genera found at CIR hydrothermal environments to date, and even identified previously unreported taxa. Moreover, a new morphotype of ‘scaly-foot’ gastropod has been found at the Solitaire field. The newly discovered ‘scaly-foot’ gastropod has similar morphological and anatomical features to the previously reported type that inhabits the Kairei field, and both types of ‘scaly-foot’ gastropods genetically belong to the same species according to analyses of their COI gene and nuclear SSU rRNA gene sequences. However, the new morphotype completely lacks an iron-sulfide coating on the sclerites, which had been believed to be a novel feature restricted to ‘scaly-foot’ gastropods. Our new findings at the two newly discovered hydrothermal vent sites provide important insights into the biodiversity and biogeography of vent-endemic ecosystems in the Indian Ocean
Hybridization and its application in aquaculture
Inter‐specific hybrids are usually formed by mating two different species in the same genus. They have been produced to increase growth rate, improve production performance, transfer desirable traits, reduce unwanted reproduction, combine other valuable traits such as good flesh quality, disease resistance and increase environmental tolerances, better feed conversion, and increase harvesting rate in culture systems. Hybrids play a significant role in helping to increase aquaculture production of several species of freshwater and marine fishes – for example, hybrid catfish in Thailand, hybrid striped bass in the USA, hybrid tilapia in Israel, and hybrid characids in Venezuela. As the domestication of fish species increases, the possibilities to increase production through appropriate hybridization techniques are ongoing, with a view to produce new hybrid fishes, especially in culture systems where sterile fish may be preferred because of the concern that fish may escape into the open freshwater, marine and coastal environment. Intentional or accidental hybridization can lead to unexpected results in hybrid progeny, such as reduced viability and growth performances, loss of color pattern and flesh quality, and it also raises risks for maintenance of genetic integrity. Appropriate knowledge on the genetic constitution of the brood stock, proper brood stock management, and monitoring of the viability and fertility of the progeny of brood fishes, is thus very crucial before initiating hybridization experiments. In addition, some non‐generic factors, such as weather conditions, culture systems, seasons, and stresses associated with selecting, collecting, handling, breeding and rearing of brood stock and progeny, may influence hybridization success in a wide variety of freshwater and marine fin fishes to a greater extent
The revitalisation of the commercial core zone of Vacoas-Phoenix
Thesis (MUP) -- University of Melbourne, Faculty of Architecture, Building and Planning, 201
Behaviour and habitat of the Indian Ocean amphibious blenny, Alticus monochrus
Alticus monochrus Bleeker is an amphibious blenny that inhabits exposed and moderately exposed rocky shores of Mauritius and other islands of the southwestern Indian Ocean. It remains above the water line on moist or wet substrata over which it migrates vertically and/or horizontally with the tide. Rapid terrestrial locomotion is accomplished by leaping during which the entire body leaves the substratum. When chased into water, it immediately re-emerges. A. monochrus feeds on emerged microscopic algae scraped from the rocks. An ethogram based primarily on field observations is presented. Although A. monochrus performs all feeding, reproductive and agonistic behaviours in air, and consequently is one of the most terrestrial intertidal fishes, its behaviour patterns are similar to those described for other intertidal blennies.Key words: Blenniidae, behaviour, ethogram, fish
Life history characteristics of Alticus monochrus , a supratidal blenny of the southern Indian Ocean
The blenny Alticus monochrus Bleeker inhabits exposed rocky shores of Mauritius and other islands of the southwestern Indian Ocean. A. monochrus is an amphibious species and remains almost exclusively above the water line, migrating vertically with the tide while feeding on a thin algal layer scraped from the moist substratum. Spawning activity peaks were observed at Pointe aux Caves, Mauritius, during the full moon periods of October and November and two corresponding oocyte size cohorts were identified in excised ovaries collected over the breeding season. Larvae hatched in approximately four days and otolith ring counts showed that settlement occurred 28 days later. Initial post-settlement growth was rapid but growth rate in length declined linearly beyond 50 mm. Length frequency time series showed that the 1991 cohort reproduced at age one, but that none of this cohort survived into the 1993 breeding season, consistent with annual semelparity. By contrast, other expected correlates of semelparity were not observed: fecundity in A. monochrus was lower than in some iteroparous blennies, and there was no obvious physical deterioration of adults following the breeding season, despite their high mortality rate.Keywords: Blenniidae, age, growth, ecology, amphibious, fis
Effect of different light regimes and predation on the sexual behaviour of the Guppy, Poecilia Reticulata (Pisces, Poeciliidae)
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