Southern resident killer whales and ecotourism

Detalhes bibliográficos
Autor(a) principal: Soares, Sara
Data de Publicação: 2009
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/1478
Resumo: Tese de mestrado, Biologia (Biologia da Conservação), 2009, Universidade de Lisboa, Faculdade de Ciências
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spelling Southern resident killer whales and ecotourismMamíferos aquáticosCetáceosBaleiasEcoturismoTeses de mestradoTese de mestrado, Biologia (Biologia da Conservação), 2009, Universidade de Lisboa, Faculdade de CiênciasOn a global scale, there has been a rapid growth of the whale watching industry in the last decade. In 1998, a total of 87 countries was involved in commercial cetacean tourist activities, with more than nine million people participating (Hoyt 2001). Off San Juan Island, Washington, USA, southern resident killer whales (Orcinus orca) population is the key resource of the tourism industry. Due to its predictability and to the fact that it is readily found it became the main target of the industry, being watched nearly at a daily basis from May through September. A fleet of almost 80 vessels and over 500,000 people annually engage in whale watching in this region (Koski 2008). Recently, the southern resident population of killer whales experienced an almost 20% decline (Krahn et al. 2002), resulting in their listing as 'depleted' under the US Marine Mammal Protection Act (MMPA) and 'endangered' under the US Endangered Species Act (ESA) and the Canadian Species at Risk Act (SARA). This combination of intense tourism activity and a fragile population has unsurprisingly brought apprehensiveness and several attempts to assess the effects of tourism activities on marine mammals have been made. Recent studies have shown that vessel presence can have short-term behavioral impacts which may result in longterm impacts. This study examined vessels' density when whales are present in the west coast of San Juan Island, and the performance of surface active behaviors (SABs) by southern resident killer whales. The results show that over 70% of the vessels involved in this activity are at least at ½ mile from shore, when whales are travelling very close to shore. The performance of SABs was greater with fewer boats present. These results allowed the assessment of further measures to regulate vessels' traffic in this region.Resumo alargado em português disponível no documentoBain, David,Magalhães, FilomenaRepositório da Universidade de LisboaSoares, Sara2010-07-27T08:58:33Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdftext/xmlhttp://hdl.handle.net/10451/1478enghttp://catalogo.ul.pt/F/?func=item-global&doc_library=ULB01&type=03&doc_number=000573182info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T15:41:01Zoai:repositorio.ul.pt:10451/1478Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:28:06.834999Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Southern resident killer whales and ecotourism
title Southern resident killer whales and ecotourism
spellingShingle Southern resident killer whales and ecotourism
Soares, Sara
Mamíferos aquáticos
Cetáceos
Baleias
Ecoturismo
Teses de mestrado
title_short Southern resident killer whales and ecotourism
title_full Southern resident killer whales and ecotourism
title_fullStr Southern resident killer whales and ecotourism
title_full_unstemmed Southern resident killer whales and ecotourism
title_sort Southern resident killer whales and ecotourism
author Soares, Sara
author_facet Soares, Sara
author_role author
dc.contributor.none.fl_str_mv Bain, David,
Magalhães, Filomena
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Soares, Sara
dc.subject.por.fl_str_mv Mamíferos aquáticos
Cetáceos
Baleias
Ecoturismo
Teses de mestrado
topic Mamíferos aquáticos
Cetáceos
Baleias
Ecoturismo
Teses de mestrado
description Tese de mestrado, Biologia (Biologia da Conservação), 2009, Universidade de Lisboa, Faculdade de Ciências
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01T00:00:00Z
2010-07-27T08:58:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/1478
url http://hdl.handle.net/10451/1478
dc.language.iso.fl_str_mv eng
language eng
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