title: Energy direct inputs and greenhouse gas emissions of the main industrial trawl fishery of Brazil.
abstract: 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 141.5millionl of diesel to land 342.3millionkg of fish and shellfish. Annually, 0.36-0.48l 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 104.07GgC to the atmosphere, between 36,800-49,500tons CO2 per year.
authors.affiliation: Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Centro de Ciências Tecnológicas da Terra e do Mar, Universidade do Vale do Itajaí, Rua Uruguai, 458, Bloco D8, Sala 104, Caixa Postal 360, CEP 88.302-202 Itajaí, Santa Catarina, Brazil. Electronic address: dagoberto_port@hotmail.com.
authors.forename: Dagoberto
authors.initials: D
authors.lastname: Port
authors.affiliation: Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Centro de Ciências Tecnológicas da Terra e do Mar, Universidade do Vale do Itajaí, Rua Uruguai, 458, Bloco D8, Sala 104, Caixa Postal 360, CEP 88.302-202 Itajaí, Santa Catarina, Brazil.
authors.forename: Jose Angel Alvarez
authors.initials: JAA
authors.lastname: Perez
authors.affiliation: Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Centro de Ciências Tecnológicas da Terra e do Mar, Universidade do Vale do Itajaí, Rua Uruguai, 458, Bloco D8, Sala 104, Caixa Postal 360, CEP 88.302-202 Itajaí, Santa Catarina, Brazil.
authors.forename: João Thadeu
authors.initials: JT
authors.lastname: de Menezes
mesh_terms: D000397:Air Pollution / Q000706:statistics & numerical data*; D000818:Animals; D001938:Brazil; D005398:Fisheries / Q000706:statistics & numerical data*; D005399:Fishes; D017752:Greenhouse Effect; D012758:Shellfish
keywords: Fuel use intensity; Greenhouse gas emissions; Industrial trawl fisheries; SW Atlantic; Southeast and south of Brazil