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Resumen del producto

Smith, L., S., Williams, B., Ferrette, B., Holmes, N.I., Kadagi, C.P., Lu, S., Ortega-García, J., Pepperell, I., Tibbetts, N., Wambiji, S., Wambua & C., Dudgeon (2024). Sailfish science: building collaborations to delineate the global population structureof a migratory pelagic fish. 7th International Billfish Symposium. San Diego Cal., Estados Unidos de América, octubre 8 - 10, 2024, 28-29.

Sailfish science: building collaborations to delineate the global population structureof a migratory pelagic fish

Laura Smith 1, Samuel Williams 2, Bruno Ferrette 3, Bonnie Holmes 4, Nelly Isigi Kadagi 5, Ching-Ping Lu 6, Sofía Ortega-García 7, Julian Pepperell 8, Ian Tibbetts 9, Nina Wambiji 10, Sammy Wambua 11 y Christine Dudgeon 12

1 The University of Queensland, School of the Environment
2 Queensland Department of Agriculture and Fisheries
3 Senckenberg Biodiversity and Climate Research Centre
4 University of the Sunshine Coast
5 World Wildlife Fund
6 National Taiwan Ocean University
7 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Pesquerías y Biología Marina
8 Pepperell Research and Consulting Pty Ltd
9 The University of Queensland
10 Kenya Marine and Fisheries Research Institute
11 Pwani University
12 The University of Queensland and University of the Sunshine Coast

The sailfish (Istiophorus platypterus) is a highly mobile epipelagic billfish whose range extends across the world’s tropics and sub-tropics. Once thought to be different two species in the Indo-Pacific and Atlantic, molecular techniques revealed a single global species in the 1990s. Its patchy but widespread distribution in the open ocean means that it can be challenging to study. Our current understanding of the global population structure of sailfish is limited due to the low number of molecular markers used in previous studies and the difficulty in sampling across its range.Collaboration with fisheries researchers and the game fishing community has been a key element in building an extensive tissue sampling collection.

The high dispersal and movement ability of marine pelagic species, along with the lack of obvious barriers in the marine environment, can result in dilute genetic signal from population differentiation. My research reveals population structure for sailfish at a finer scale than previously detected by making use of a genome wide approach. I investigated the structure and connectivity among sailfish populations across its circumtropical range in the Indian, Pacific, and Atlantic oceans with a substantial single nucleotide polymorphism (SNP) dataset. Novel genomic population structure provides a baseline and informs future stock assessment and management, particularly where this information is lacking for the Indo-Pacific.

Palabras clave: genomic; Sailfish; SNPs

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx

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