Ecosystem approach to fisheries: Exploring environmental and trophic effects on Maximum Sustainable Yield (MSY) reference point estimates
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{"title"=>"Ecosystem approach to fisheries: Exploring environmental and trophic effects on Maximum Sustainable Yield (MSY) reference point estimates", "type"=>"journal", "authors"=>[{"first_name"=>"Rajeev", "last_name"=>"Kumar", "scopus_author_id"=>"55830092800"}, {"first_name"=>"Tony J.", "last_name"=>"Pitcher", "scopus_author_id"=>"7005614212"}, {"first_name"=>"Divya A.", "last_name"=>"Varkey", "scopus_author_id"=>"24081618600"}], "year"=>2017, "source"=>"PloS one", "identifiers"=>{"issn"=>"19326203", "sgr"=>"85032938419", "doi"=>"10.1371/journal.pone.0185575", "scopus"=>"2-s2.0-85032938419", "isbn"=>"1111111111", "pui"=>"619132722"}, "id"=>"5393d6fe-82ea-3d24-a592-7e053da8a457", "abstract"=>"We present a comprehensive analysis of estimation of fisheries Maximum Sustainable Yield (MSY) reference points using an ecosystem model built for Mille Lacs Lake, the second larg-est lake within Minnesota, USA. Data from single-species modelling output, extensive annual sampling for species abundances, annual catch-survey, stomach-content analysis for predatory-prey interactions, and expert opinions were brought together within the frame-work of an Ecopath with Ecosim (EwE) ecosystem model. An increase in the lake water tem-perature was observed in the last few decades; therefore, we also incorporated a temperature forcing function in the EwE model to capture the influences of changing temper-ature on the species composition and food web. The EwE model was fitted to abundance and catch time-series for the period 1985 to 2006. Using the ecosystem model, we esti-mated reference points for most of the fished species in the lake at single-species as well as ecosystem levels with and without considering the influence of temperature change; there-fore, our analysis investigated the trophic and temperature effects on the reference points. The paper concludes that reference points such as MSY are not stationary, but change when (1) environmental conditions alter species productivity and (2) fishing on predators alters the compensatory response of their prey. Thus, it is necessary for the management to re-estimate or re-evaluate the reference points when changes in environmental conditions and/or major shifts in species abundance or community structure are observed.", "link"=>"http://www.mendeley.com/research/ecosystem-approach-fisheries-exploring-environmental-trophic-effects-maximum-sustainable-yield-msy-r", "reader_count"=>19, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Researcher"=>3, "Student > Ph. D. Student"=>4, "Student > Master"=>6, "Student > Bachelor"=>1, "Professor"=>1, "Student > Doctoral Student"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Researcher"=>3, "Student > Ph. D. Student"=>4, "Student > Master"=>6, "Student > Bachelor"=>1, "Professor"=>1, "Student > Doctoral Student"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Engineering"=>1, "Environmental Science"=>6, "Agricultural and Biological Sciences"=>8, "Arts and Humanities"=>1, "Physics and Astronomy"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>8}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>6}, "Arts and Humanities"=>{"Arts and Humanities"=>1}}, "group_count"=>0}

Scopus | Further Information

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