Age and growth of three endemic threatened guitarfishes Pseudobatos horkelii, P. percellens and Zapteryx brevirostris in the western South Atlantic Ocean.

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ID: 41198
2019
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Abstract
The age and growth of three endemic threatened guitarfish species were analysed using vertebrae of Pseudobatos horkelii, P. percellens and Zapteryx brevirostris. Edge and marginal-increment analyses were used to evaluate the periodicity of the formation of the band-pairs, suggesting deposition of one band-pair per year, from late winter to late spring. The von Bertalanffy growth model was used to describe the growth of these species with the following parameters, for pooled sexes: P. horkelii L = 126.93, k = 0.19 and t = -1.51; P. percellens L = 109.31, k = 0.16 and t = -1.78; Z. brevirostris L = 60.37, k = 0.24 and t = -1.42. Our results are essential to understanding the resilience and vulnerability of these species to harvest, which can contribute to management and conservation actions of these species.
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caltabellotta2019agejournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Caltabellotta, Fabio P;Siders, Zachary A;Murie, Debra J;Motta, Fabio S;Cailliet, Gregor M;Gadig, Otto B F;
Journal Journal of fish biology
Year 2019
DOI
10.1111/jfb.14123
URL
Keywords Keywords not found

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