Marine Mammal Bioacustics Using Towed Array Systems in the Western South Atlantic Ocean

Andriolo, Artur; Castro, Franciele Rezende de; Amorim, Thiago Orion Simões; Miranda, Gustavo Rabelo Botrel; Tullio, Juliana Di; Moron, Juliana Rodrigues; Ribeiro, Bruna; Ramos, Gabriela de Araújo Porto; Mendes, Raíssa R.

doi:10.1007/978-3-319-56985-7_5

Cited by 5 publications

(3 citation statements)

References 127 publications

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“…The implementation of PAM as a monitoring method aboard seismic surveys has evolved over the years. Although considered an optional measure in the BOEM NTLs, PAM was required in some permit conditions after 2010 and was stipulated in the 2013 settlement agreement for all deep-penetration surveys conducted in water depths over 100 m. PAM has generally become a widely accepted monitoring method for marine mammal mitigation on seismic vessels [ 11 , 17 ] due, in part, to the continued improvement of PAM systems and its demonstrated efficacy in both research and other monitoring applications [ 17 – 20 ]. The efficacy of towed PAM systems is limited for low frequency species and very little is published about quantifying PAM’s efficacy as a seismic mitigation measure [ 17 , 21 ].…”

Section: Methodsmentioning

confidence: 99%

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Analysis of protected species observer data: Strengths, weaknesses, and application in the assessment of marine mammal responses to seismic surveys in the northern Gulf of Mexico 2002–2015

Barkaszi,

Kelly

2024

PLoS ONE

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Visual observation data collected by protected species observers (PSOs) is required per regulations stipulated in Notices to Lessees (NTLs) and geophysical survey Permits (Form BOEM-0328) issued to seismic operators in the Gulf of Mexico (GOM). Here, data collected by certified and trained PSOs during seismic surveys conducted between 2002–2015 were compiled and analyzed to assess utility in assessing marine mammal responses to seismic noise and effectiveness of required mitigation measures. A total of 3,886 agency-required bi-weekly PSO Effort and Sightings reports were analyzed comprising 598,319 hours of PSO visual effort and 15,117 visual sighting records of marine mammals. The observed closest point of approach (CPA) distance was statistically compared across five species groupings for four airgun activity levels (full, minimum source, ramp up, silent). Whale and dolphin detections were significantly farther from airgun array locations during full power operations versus silence, indicating some avoidance response to full-power operations. Dolphin CPA distances were also significantly farther from airguns operating at minimum source than silence. Blackfish were observed significantly farther from the airgun array during ramp up versus both full and minimum source activities. Blackfish were observed significantly closer to the airgun array during silent activities versus at full, minimum source, and ramp up activities. Beaked whales had the largest mean CPA for detection distance compared to all other species groups. Detection distances for beaked whales were not significantly differences between full and silent operations; however, the sample size was very low. Overall results are consistent with other studies indicating that marine mammals may avoid exposure to airgun sounds based on observed distance from the seismic source during specified source activities. There was geographic variability in sighting rates associated with specific areas of interest within the GOM. This study demonstrates that agency required PSO reports provide a robust and useful data set applicable to impact assessments; management, policy and regulatory decision making; and qualitative input for regional scientific, stock assessment and abundance studies. However, several improvements in content and consistency would facilitate finer-scale analysis of some topics (e.g., effort associated with specific activities, observer biases, sound field estimation) and support statistical comparisons that could provide further insight into marine mammal responses and mitigation efficacy.

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Section: Methodsmentioning

confidence: 99%

“…demonstrated efficacy in both research and other monitoring applications [17][18][19][20]. The efficacy of towed PAM systems is limited for low frequency species and very little is published about quantifying PAM's efficacy as a seismic mitigation measure [17,21].…”

Section: Plos Onementioning

confidence: 99%

Analysis of protected species observer data: Strengths, weaknesses, and application in the assessment of marine mammal responses to seismic surveys in the northern Gulf of Mexico 2002–2015

Barkaszi,

Kelly

2024

PLoS ONE

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“…As médias dos parâmetros acústicos dos sinais acústicos das espécies de odontocetos da biblioteca de identificação foram apresentados individualmente por espécie, juntamente com as médias de variáveis acústicas de populações de outras localidades (Tabela 9,10,11,12 e 13,e as Figuras 39,40,41,42 e 43). Com esta comparação verificou-se que o repertório acústico de T. truncatus deste estudo é semelhante ao de populações da quebra da plataforma continental do Oceano Atlântico Sul ocidental (Andriolo et al, 2018) e da costa do Rio de Janeiro . Assim como os assobios de S. frontalis deste estudo se aproximaram aos descritos por Azevedo et al (2010) (Sirosky, 2009).…”

Section: Introductionunclassified

Monitoramento acústico passivo: detecção de cetáceos odontocetos no litoral norte do Estado de São Paulo

Barcellos¹

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Agradecimentos Agradeço a todas as pessoas que passaram pela minha vida durante a confecção deste estudo e que contribuíram de alguma maneira para a obtenção deste produto final. Resta-me fazer aqui uma singela homenagem, demonstrando os meus sinceros agradecimentos. O presente trabalho foi realizado com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brasil (CAPES)-Código de Financiamento 001 (de julho à novembro de 2015); com o apoio do Conselho Nacional de Desenvolvimento Científico e Tecnológico CNPq (n°: 163148/2015-5); apoio da Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP n° 2011/51543-9) nos cruzeiros oceanográficos para os registros acústicos das espécies de odontocetos e construção da biblioteca de identificação; Projeto Temático Baía do Araçá, financiado pela FAPESP (n° 2011/50317-5) pela aquisição dos equipamentos de pesquisa DSGs; e ao navio de pesquisa "Alucia" (Ocean X) para o registro do repertório acústico dos golfinhos-rotadores (Stenella longirostris). Ao professor e orientador Prof. Marcos César de Oliveira Santos pela excelente orientação em todas as etapas deste trabalho, pelas críticas e sugestões valiosas, e pelos conselhos e direcionamento acadêmico. Não posso deixar de agradecer também pela amizade que ao longo dos anos se estrutura cada vez mais. Eu vou te ver velhinho! O amor acalma. Agradeço à minha esposa Thioni (imagina só se eu não coloco o nome dela junto com as minhas conquistas!), por toda ajuda e compreensão com as saídas à campo e coleta de dados, e principalmente, por todo companheirismo, atenção e carinho durante esta etapa da minha vida. Sem o apoio da minha sra. não seria possível completar esta jornada da minha vida. Aos meus pais Rosana e Ronaldo, aos meus avós Olga e Luiz, Yvonne, e ao meu irmão Rodolfo e a Valquíria, por todo apoio, conselhos e incentivos que sempre me deram. Todos vocês são os verdadeiros responsáveis pelo passo inicial à minha carreira profissional. Não posso esquecer-me da ajuda silenciosa, alegre e carinhosa da Minie, nossa eterna cachorra companheira fiel.

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Intraspecific variation in short-beaked common dolphin’s whistle repertoire

et al. 2021

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Marine Mammal Bioacustics Using Towed Array Systems in the Western South Atlantic Ocean

Cited by 5 publications

References 127 publications

Analysis of protected species observer data: Strengths, weaknesses, and application in the assessment of marine mammal responses to seismic surveys in the northern Gulf of Mexico 2002–2015

Analysis of protected species observer data: Strengths, weaknesses, and application in the assessment of marine mammal responses to seismic surveys in the northern Gulf of Mexico 2002–2015

Monitoramento acústico passivo: detecção de cetáceos odontocetos no litoral norte do Estado de São Paulo

Intraspecific variation in short-beaked common dolphin’s whistle repertoire

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