Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean

Hawksbill sea turtles (Eretmochelys imbricata) inhabiting the eastern Pacific Ocean are one of the world's most threatened marine turtle management units. Despite the fact that knowledge about the status of sea turtles at foraging grounds is a key element for developing the effective conservati...

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Autores principales: Llamas,Israel, Flores,Eric E, Abrego,Marino E, Seminoff,Jeffrey A, Hart,Catherine E, Donadi,Rodrigo, Peña,Bernardo, Alvarez,Gerardo, Poveda,Wilfredo, Amorocho,Diego F, Gaos,Alexander
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2017
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000300009
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spelling oai:scielo:S0718-560X20170003000092017-09-14Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific OceanLlamas,IsraelFlores,Eric EAbrego,Marino ESeminoff,Jeffrey AHart,Catherine EDonadi,RodrigoPeña,BernardoAlvarez,GerardoPoveda,WilfredoAmorocho,Diego FGaos,Alexander marine turtle Eretmochelys imbricata demography management conservation Panama Hawksbill sea turtles (Eretmochelys imbricata) inhabiting the eastern Pacific Ocean are one of the world's most threatened marine turtle management units. Despite the fact that knowledge about the status of sea turtles at foraging grounds is a key element for developing the effective conservation strategies, comprehensive studies of hawksbills at foraging habitats in the eastern Pacific remain lacking. For many years anecdotal information indicated Coiba Island National Park in Panama as a potentially important hawksbill foraging ground, which led to the initiation of monitoring surveys in September 2014. Ongoing mark-recapture surveys to assess population status, generate demographic data and identify key foraging sites have been conducted every six months in the park since that time. To date, a total of six monitoring campaigns consisting of four days each have been conducted, leading to the capture and tagging of 186 hawksbills, 51 of which were recaptured at least once. The size range of captured individuals was 30.0 to 75.5 cm and largely comprised of juveniles. Somatic growth rates of individual hawksbills were highly variable, ranging from -0.78 to 7.1 cm year-1. To our knowledge, these are the first published growth rates for juvenile hawksbill turtles in the eastern Pacific Ocean. When these growth data are combined with information on hawksbill demography and distribution, our findings indicate Coiba Island National Park is one of the most important known foraging sites for hawksbill sea turtles in the eastern Pacific Ocean.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.45 n.3 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000300009en10.3856/vol45-issue3-fulltext-9
institution Scielo Chile
collection Scielo Chile
language English
topic marine turtle
Eretmochelys imbricata
demography
management
conservation
Panama
spellingShingle marine turtle
Eretmochelys imbricata
demography
management
conservation
Panama
Llamas,Israel
Flores,Eric E
Abrego,Marino E
Seminoff,Jeffrey A
Hart,Catherine E
Donadi,Rodrigo
Peña,Bernardo
Alvarez,Gerardo
Poveda,Wilfredo
Amorocho,Diego F
Gaos,Alexander
Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
description Hawksbill sea turtles (Eretmochelys imbricata) inhabiting the eastern Pacific Ocean are one of the world's most threatened marine turtle management units. Despite the fact that knowledge about the status of sea turtles at foraging grounds is a key element for developing the effective conservation strategies, comprehensive studies of hawksbills at foraging habitats in the eastern Pacific remain lacking. For many years anecdotal information indicated Coiba Island National Park in Panama as a potentially important hawksbill foraging ground, which led to the initiation of monitoring surveys in September 2014. Ongoing mark-recapture surveys to assess population status, generate demographic data and identify key foraging sites have been conducted every six months in the park since that time. To date, a total of six monitoring campaigns consisting of four days each have been conducted, leading to the capture and tagging of 186 hawksbills, 51 of which were recaptured at least once. The size range of captured individuals was 30.0 to 75.5 cm and largely comprised of juveniles. Somatic growth rates of individual hawksbills were highly variable, ranging from -0.78 to 7.1 cm year-1. To our knowledge, these are the first published growth rates for juvenile hawksbill turtles in the eastern Pacific Ocean. When these growth data are combined with information on hawksbill demography and distribution, our findings indicate Coiba Island National Park is one of the most important known foraging sites for hawksbill sea turtles in the eastern Pacific Ocean.
author Llamas,Israel
Flores,Eric E
Abrego,Marino E
Seminoff,Jeffrey A
Hart,Catherine E
Donadi,Rodrigo
Peña,Bernardo
Alvarez,Gerardo
Poveda,Wilfredo
Amorocho,Diego F
Gaos,Alexander
author_facet Llamas,Israel
Flores,Eric E
Abrego,Marino E
Seminoff,Jeffrey A
Hart,Catherine E
Donadi,Rodrigo
Peña,Bernardo
Alvarez,Gerardo
Poveda,Wilfredo
Amorocho,Diego F
Gaos,Alexander
author_sort Llamas,Israel
title Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
title_short Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
title_full Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
title_fullStr Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
title_full_unstemmed Distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern Pacific Ocean
title_sort distribution, size range and growth rates of hawksbill turtles at a major foraging ground in the eastern pacific ocean
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2017
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000300009
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