Energy direct inputs and greenhouse gas emissions of the main industrial trawl fishery of Brazil

摘要

This study provides first-time estimates of direct fuel inputs and greenhouse gas emissions produced by the trawl fishing fleet operating off southeastern and southern Brazil. Analyzed data comprised vessel characteristics, landings, fishing areas and trawling duration of 10,144 fishing operations monitored in Santa Catarina State from 2003 to 2011. Three main fishing strategies were differentiated: 'shrimp trawling', 'slope trawling' and 'pair trawling'. Jointly these operations burned over 141.5 million I of diesel to land 3423 million kg of fish and shellfish. Annually, 0.36-0.481 were consumed for every kg of catch landed. Because all fishing strategies relied on multispecific catches to raise total incomes, estimates of fuel use intensity were generally low but increased 316-1025% if only nominal targets were considered. In nine years, trawling operations emitted 104.07 GgC to the atmosphere, between 36,800-49,500 tons CO2 per year. (C) 2016 Elsevier Ltd. All rights reserved.