Please use this identifier to cite or link to this item: http://cybertesis.uni.edu.pe/handle/uni/3781
Title: Defining fishing spatial strategies from VMS data: Insights from the world's largest monospecific fishery
Authors: Joo, Rocio
Salcedo, Omar
Gutierrez, Mariano
Fablet, Ronan
Bertrand, Sophie
Keywords: Vessel Monitoring System (VMS);Peruvian purse-seine anchovy fishery;Engraulis ringens;Fisherman spatial patterns
Issue Date: Apr-2015
Publisher: Elsevier Ltd
Related URI: http://www.sciencedirect.com/science/article/pii/S0165783614003592
Abstract: Understanding the spatiotemporal behavior of fishermen at the fleet scale is key for defining effective strategies for fisheries management. Here we classify the spatial patterns exhibited by fishing trip trajectories in the world's largest monospecific fishery, the Peruvian anchovy fishery. Our goal is to identify spatial strategies and their possible changes over 2000–2009. The data comprise more than 350,000 fishing trips, recorded using a vessel monitoring system. On-board observers monitored a small fraction of those trips (>2000), providing data for inferring the type of activity (fishing, searching, and cruising) from the position records, for use in a state-space model. Each fishing trip was characterized by its duration, maximum distance to the coast, geographical extension, and time spent fishing, searching and cruising. Using clustering techniques, we identified four types of fishing trips, associated with differences in management among regions, fleet segments, and skippers’ behavior. The methodology could be used to investigate fishing spatial strategies using VMS trajectories in other fisheries.
URI: http://cybertesis.uni.edu.pe/handle/uni/3781
ISSN: 0165-7836
E-mail: rocio.joo@gmail.com
Osalcedo9@gmail.com
MarianoG@unops.org
ronan.fablet@telecom-bretagne.eu
Sophie.Bertrand@ird.fr
Rights: info:eu-repo/semantics/embargoedAccess
Appears in Collections:Instituto General de Investigación (IGI)



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