Report of two fin whale (Balaenoptera physalus) stranding associated with ship strike in central-south coast of Chile.

Authors

  • Frederick Alexander Toro Cortes Centro de Investigación para la Sustentabilidad y Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidad Andres Bello, Republica 252, Santiago, Chile Panthalassa, Red de Estudios de Vertebrados Marinos de Chile, Toesca 2002 P6, Santiago, Chile. Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS. Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile.
  • Josefina Gutiérrez Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS Instituto de Patología Animal y Programa de Investigación Aplicada en Fauna Silvestre, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
  • Mario Alvarado-Rybak Centro de Investigación para la Sustentabilidad y Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidad Andres Bello, Republica 252, Santiago, Chile. Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS Epi3lab, Departamento de Enfermedades Infecciosas e Inmunología Pediátrica, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, 8330024, Chile.
  • Analía Henríquez Facultad de Medicina Veterinaria, Universidad San Sebastián, Concepción, Chile
  • Jorge Leichtle Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS Facultad de Medicina Veterinaria, Universidad San Sebastián, Concepción, Chile
  • Nelson Follador Panthalassa, Red de Estudios de Vertebrados Marinos de Chile, Toesca 2002 P6, Santiago, Chile. Laboratorio de Ecología y Evolución, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bío-Bío, Casilla 447, Chillán, Chile.
  • Paulette Abarca Panthalassa, Red de Estudios de Vertebrados Marinos de Chile, Toesca 2002 P6, Santiago, Chile Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS. Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile. Programa de Magíster en Ciencias mención Biodiversidad y Conservación, Universidad de Valparaíso, Valparaíso, Chile.
  • Camila Calderón Centro de Investigación Oceanográfica COPAS Sur-Austral y Programa de Magíster en Ciencias mención Oceanografía, Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile.
  • Claudia Peña Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS
  • Paula Aravena Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS Laboratorio de Vida Silvestre de la Facultad de Ciencias Veterinarias de la Universidad de Concepción
  • Alexis Henríquez Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile.
  • David Rodríguez Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile.
  • Constanza Sánchez Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile.
  • Betsy Pincheira Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS

DOI:

https://doi.org/10.5597.00255

Keywords:

Stranding, necropsy, Ship strike

Abstract

In the last decades, collisions between ships and cetaceans have increased worldwide, with fin whales (Balaenoptera physalus), the species that has presented higher mortality due to this cause.  This report describes post mortem findings in two juvenile B. physalus stranded dead on the central-south coast of Chile in 2018 and 2019. Gross findings revealed traumatic lesions attributed to interaction with large vessels. Both sites are ports that present high traffic of small and large vessels, increasing the probabilities of ship strike. In Chile, three areas are of high relevance for this species, Atacama (27°S), San Antonio (33°35′S) and Talcahuano (36°30´S), where juvenile age segregation is present. Although systematic records of interactions between cetaceans and vessels are non-existent, these events must be approached with a multidisciplinary focus, as diagnostics and reports are key to establish protection and conservation policies for these large mammals.

Author Biography

Frederick Alexander Toro Cortes, Centro de Investigación para la Sustentabilidad y Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidad Andres Bello, Republica 252, Santiago, Chile Panthalassa, Red de Estudios de Vertebrados Marinos de Chile, Toesca 2002 P6, Santiago, Chile. Asociación de Médicos Veterinarios de Fauna Silvestre, AMEVEFAS. Universidad Santo Tomás, Escuela de Medicina Veterinaria, Sede Viña del Mar, Viña del mar, Chile.

Ciencias de la Vida

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Published

2020-08-04