Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil

Autor:	Johnatas Adelir-Alves, Marcelo Soeth, Alberto Teodorico Correia, Felippe Alexandre Daros, Henry Louis Spach
Přispěvatelé:	Universidade Federal do Paraná (UFPR), CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade Estadual Paulista (Unesp), UFP-FCS
Rok vydání:	2018
Předmět:	life history 0106 biological sciences Marine conservation Abudefduf saxatilis Range (biology) Coral reef fish sagittae Aquatic Science Oceanography 010603 evolutionary biology 01 natural sciences Audrey Geffen medicine shape and chemical analyses Reef Ecology Evolution Behavior and Systematics Otolith geography geography.geographical_feature_category biology 010604 marine biology & hydrobiology biology.organism_classification Fishery medicine.anatomical_structure Habitat Benthic zone
Zdroj:	Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP
ISSN:	1745-1019 1745-1000
DOI:	10.1080/17451000.2019.1572194
Popis:	Made available in DSpace on 2019-10-06T16:16:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-11-26 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) To promote marine conservation and sustainable resources use it is highly important to understand reef fish population structure and dynamics. The sergeant major, Abudefduf saxatilis, is a common and abundant fish usually found in the Brazilian coasts, being considered a keystone-species for structuring benthic communities on reef habitats in the Atlantic Ocean. This study examined the morphology (shape indices and elliptic Fourier descriptors) and chemistry (Element:Ca) of A. saxatilis sagittal otoliths, collected in seven locations along the coast of South Brazil. Otolith morphology and chemistry were compared at short (range 0.5–2 km) and large (range 70–140 km) spatial scales using univariate and multivariate statistical approaches. Reclassification accuracy rates obtained from linear discrimination function analyses using both morphology and chemistry of otoliths were 61% and 82% for short and large spatial scales, respectively. No clear separation for individuals collected in islands within the Tamboretes Archipelago were observed suggesting that water masses are relatively homogeneous and/or that individuals could be highly mixed over short spatial scales. However, the higher reclassification success of the individuals belonging to Bom Abrigo, Galheta and Paz islands, indicates a limited movement of adults between habitats, a larval retention mechanism or a self-recruitment process occurring at large spatial scales. Programa de Pós-Graduação em Zoologia Universidade Federal do Paraná PGZOO/UFPR Laboratório de Ecologia de Peixes Centro de Estudos do Mar CEM/UFPR CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade Estadual Paulista UNESP Câmpus de Registro Programa de Pós-Graduação em Sistemas Costeiros e Oceânicos Universidade Federal do Paraná PGSISCO/UFPR Faculdade de Ciências da Saúde da Universidade Fernando Pessoa UFP-FCS Universidade Estadual Paulista UNESP Câmpus de Registro CAPES: CAPES–1669551 CNPq: CNPq/PVE–314444/2014-9
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bf82ca38a51edca9aace93a52ddb477 https://doi.org/10.1080/17451000.2019.1572194 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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