156 research outputs found

    Positive Thinking and Action: The Key to Success

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    Positive thinking is a mental and emotional state that focuses on the positive side of life and expects favorable results. Positive thinking is the best way to internally support yourself to pursue your dreams. It brings inner peace, success, improved relationships, better health, happiness and satisfaction. It also helps the everyday life move more easily and makes life brighter and promising. However, positive thinking really means approaching life's challenges with a positive outlook. It does not necessarily mean avoiding or ignoring the bad things; instead, it involves making the most of the potentially bad situations, trying to see the best in other people, and viewing yourself and your abilities in a positive glow

    Field Identification of Threadfin breams, Silverbellies, Croakers and Bullseye

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    Nemipterids are one among the most commercially important groups of marine fishes in the tropical Indo-West Pacific region. Family Nemipteridae comprises of five genera: Nemipterus, Parascolopsis, Pentapodus, Scaevius, and Scolopsis. Nemipterus is popularly known as тАЬpink perchтАЭ, contributed to 4.78% (1,62,764 t) of the total fish landings in the country during 2015

    Collection of Data for Fishery Biology Studies and Fish Stock Assessment

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    Basic objective of fisheries research is to provide ample information on the status of fish stocks. This information is collected through various sampling procedures and the data are used to provide advice on the sustainable management of fish stocks, upon which the entire fishing industry depends. There are two main sources of data collected and used in fisheries research. These can be divided into fishery independent and fishery dependent data. The first usually involves monitoring the changes in distribution over time in the relative or absolute abundance of fish populations using vessel based surveys in a way that is not subject to the biases inherent in commercial fishery data. The collection and accurate interpretation of both fishery dependent and fishery independent data are of fundamental importance to our understanding of the fished species. Both are needed to gain an understanding of the magnitude of localized changes in fish communities, landings and productivity of the resource. Fishery dependent information involves collection of catch and effort data (CPUE) as well as biological sampling from commercial fisheries. CPUE data are usually collected from logbooks or using direct observation at the site of landings. The underlying assumption is that changes in CPUE accurately reflect changes in the abundance of the fish stocks

    Training Manual on Advances in Marine Fisheries in India

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    Training Manual on Advances in Marine Fisheries in Indi

    Art of Positive Thinking

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    Positive thinking is a mental attitude in which you expect good and favorable results. A positive mind waits for happiness, health and a happy ending in any situation. However, positive thinking actually means approaching life's challenges with a positive outlook. It does not necessarily mean avoiding or ignoring the bad things; instead, it involves making the most of the potentially bad situations, trying to see the best in other people, and viewing yourself and your abilities in a positive light

    Decadal Trends of Indian Demersal Fisheries

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    Fisheries sector plays an important role in the overall socio-economic development of India. India is one of the major fish producing countries in the world contributing over 3% of both marine and freshwater fishes of the world production. Marine fishes, based on their depth-wise distribution are grouped mainly as pelagic and demersal, the former occupying surface and subsurface waters and the latter the neritic areas in the continental shelf. Demersal fishes are those fishes which can either rest on the sea floor or which can float in the water column just above the sea floor. The demersal fish resources of India include the elasmobranchs, eels, major perches, threadfin breams, silverbellies, sciaenids, lizardfishes, pomfrets, bulls eye, catfishes, flatfishes, goatfish and white fish. There is a significant contribution by the demersal fishes to the total Indian marine fish landings. When compared to the pelagic resources, proper exploitation of the demersal finfishes in India has been initiated since 1960-62 period. With the introduction of mechanized bottom trawling the exploitation of demersal finfishes attained a 2.7 fold increase reaching 0.52 million tonnes in the late eighties from 0.08million tonnes during the late fifties. In 2017, the demersal fish production of India reached new heights with a peak annual average landing of 1 million tonne which is almost an increase of 12.5 fold from the late fifties. The annual average landings of demersal finfishes along the Indian coast during 2010-2015 was accounted to 0.95 million tonnes contributing 26.32% to the total landings. However, the catch share of demersal finfishes during the last 35 years indicates that the contribution of demersal finfishes to the total Indian marine landings is decreasing over the years. The maximum share was reported in 1983 with 33% contribution and the lowest share was in 1989

    Field Identification of Major Elasmobranchs along the Indian Coast

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    Elasmobranchs are an important group of demersal fishes which are represented by sharks, skates and rays. India is the worldтАЩs second biggest shark fishing nation next to Indonesia. They belong to the Class Elasmobranchii under the Phylum Chordata. Sharks are caught with various gears like drift gillnets, longlines, hooks and line units and are landed throughout the year. They feed on bony fishes, other sharks, rays, crustaceans and squids

    Field Identification of Major Demersal Teleost Fish Species along the Indian Coast

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    Based on their vertical distribution, fishes are broadly classified as pelagic or demersal. Species those are distributed from the seafloor to a 5 m depth above, are called demersal and those distributed from a depth of 5 m above the seafloor to the sea surface are called pelagic. The term demersal originates from the Latin word demergere, which means to sink. The demersal fish resources include the elasmobranchs, major perches, catfishes, threadfin breams, silverbellies, sciaenids, lizardfishes, pomfrets, bulls eye, flatfishes, goatfish and white fish. This chapter deals with identification of the major demersal teleost fish species

    Climate Change Impacts on Indian Marine Fisheries and adaptation strategies

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    Increase in greenhouse gases (GHGs) in the atmosphere has resulted in warming of climate systems or global warming. Global warming is a long-term rise in the average temperature of the earth's climate system, an aspect of climate change shown by temperature measurements and by multiple effects of the warming. The term commonly refers to the mainly human-caused observed warming since pre-industrial times and its projected continuation, though there were also much earlier periods of global warming. In the modern context the terms are commonly used interchangeably, but global warming more specifically relates to worldwide surface temperature increases; while climate change is any regional or global statistically identifiable persistent change in the state of climate which lasts for decades or longer, including warming or cooling. Many of the observed warming changes since the 1950s are unprecedented in the instrumental temperature record and in historical and paleoclimate proxy records of climate change over thousands to millions of years

    Length-weight relationships of three reef-associated fishes Lutjanus gibbus, Pinjalo lewisi and Pristipomoides filamentosus off Kochi, southwest coast of India

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    Length-weight relationships (LWRs) of three reef-associated fishes belonging to the family Lutjanidae viz ., Lutjanus gibbus (Forsskal, 1775), Pinjalo lewisi Randall, Allen & Anderson, 1987 and Pristipomoides filamentosus (Valenciennes, 1830), were estimated based on 548 samples collected from trawl net and hook and line fishery off Kochi, southwest coast of India. Sampling was done at Kochi (Lat. 09┬░56тА▓327тА▓тА▓N, Long. 76┬░15тА▓764тА▓тА▓E) and Munambam (Lat. 10┬░10тА▓965тА▓тА▓N, Long. 76┬░10тА▓258тА▓тА▓E) landing centers from May 2017 to November 2019. The estimated coefficient (b value) ranged from 2.597 ( P. lewisi , N = 89) to 2.902 (P. filamentosus , N = 240). Coefficient of determination (r2) ranged from 0.906 ( L. gibbus ) to 0.952 ( P. filamentosus), indicating a strong functional LWRs that were highly significant (p <0.001). The study reports the new maximum total length (TLmax) for P. lewisi and also records first estimates of length-weight relationships for three major species of snappers from the region. The generated LWR parameters will be of great importance in evaluating the biological changes in fish stocks and for developing sustainable management measures for snappers in the southeastern Arabian Sea
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