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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Carbon footprint of marine fisheries: life cycle analysis from Visakhapatnam
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Carbon footprint of marine fisheries: life cycle analysis from Visakhapatnam

机译：海洋渔业的碳足迹：维沙卡帕特南的生命周期分析

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摘要

The contribution of marine fisheries in Visakhapatnam at all stages of its life cycle to climate change during 2010-2012 was studied by determining its carbon footprint. Pre-harvest phase consisted of vessel construction and maintenance and provision of fishing gear; harvest phase included harvest from mechanized and motorized craft and post-harvest phase involved fish transportation and fish processing. The functional unit selected was 1 kg of marine fish to the consumer. Fuel and electricity consumption was 0.48 1/kg and 0.255 kWh/kg of fish. The C and CO2 emitted were 0.382 kg C/kg and 1.404 kg CO2/kg of fish. The highest consumption of energy and the highest emissions of CO2 were observed from the harvest phase. The fuel and electricity consumption and C and CO2 emissions were high for mechanized landings and low for motorized landings. Reduction in energy consumption and subsequent emissions is possible in mechanized craft by increasing the fuel efficiency of marine diesel engines, controlling craft speed, using large propeller with lower revolutions and reducing the craft drag.
机译：通过确定其维萨卡帕特南的碳足迹，研究了维萨卡帕特南生命周期各个阶段的海洋渔业对2010-2012年气候变化的贡献。捕捞前阶段包括船只的建造和维护以及提供渔具;收获阶段包括从机械化和机动化的工艺中收获，收获后阶段涉及鱼类运输和鱼类加工。选择的功能单位是向消费者提供1千克海鱼。燃料和电力消耗为0.48 1 / kg和0.255 kWh / kg鱼类。排放的碳和二氧化碳为0.382千克碳/千克鱼和1.404千克二氧化碳/千克鱼。从收获期开始，能源消耗最高，CO2排放最高。机械化着陆的燃油和电力消耗以及C和CO2排放较高，而机动化着陆的燃油和电力消耗较低。通过提高船用柴油机的燃油效率，控制船舶速度，使用转速较低的大型螺旋桨并减少船舶阻力，可以降低机械化船舶的能耗和后续排放。

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