2015
DOI: 10.3989/scimar.04218.31a
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Abstract: Summary:In order to characterize the ontogeny of Anchoa tricolor, the morphology and morphometry of sagitta otoliths were described. A total of 397 pairs of sagitta otoliths of A. tricolor (20 to 85 mm) were measured and analysed by means of digital images. Morphological description was done in terms of shape and features. The Huxley model was fitted to otolith length against total length (TL) and weight (TW), and residual analyses were done in order to detect the polyphasic growth. Six shape indices were calc… Show more

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Cited by 22 publications
(11 citation statements)
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“…In the internal part of the otoliths, the presence of a well-developed heterosulcoid sulcus acusticus was noted, with a notable differentiation between ostium and cauda, agreeing with the studies performed by Lombarte et al (2006), Martínez et al (2007) It is still possible to denote that the analyzed otoliths have the cauda curved towards the posterior ventral region of the otoliths, and this is considered a standard for the genus. It is also worth noting the presence of a heterosulcoid sulcus acusticus in this species, and this characteristic is common to the order Perciformes, however, it is also present in the orders Atheriniformes and Clupeiformes (see Carvalho and Corrêa 2014, Siliprandi et al 2014, Carvalho et al 2015.…”
Section: Discussionmentioning
confidence: 66%
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“…In the internal part of the otoliths, the presence of a well-developed heterosulcoid sulcus acusticus was noted, with a notable differentiation between ostium and cauda, agreeing with the studies performed by Lombarte et al (2006), Martínez et al (2007) It is still possible to denote that the analyzed otoliths have the cauda curved towards the posterior ventral region of the otoliths, and this is considered a standard for the genus. It is also worth noting the presence of a heterosulcoid sulcus acusticus in this species, and this characteristic is common to the order Perciformes, however, it is also present in the orders Atheriniformes and Clupeiformes (see Carvalho and Corrêa 2014, Siliprandi et al 2014, Carvalho et al 2015.…”
Section: Discussionmentioning
confidence: 66%
“…The otolith shape usually has an interspecific pattern among the species Echeverría 1999, Tuset et al 2008), however, some internal (physiological) and external factors can modify the shape of otoliths in populations of the same species throughout the ontogenetic development. Several studies demonstrate how the shape of the otoliths can vary (Carvalho and Corrêa 2014, Maciel et al 2019, Carvalho et al 2020 and the ontogenetic variation influenced by growth has already been described for several species (Capoccioni 2011, Vignon 2012, Carvalho et al 2015, Yan et al 2017, Song et al 2019.…”
Section: Introductionmentioning
confidence: 88%
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“…The morphometric variables registered were: otolith length (OL), otolith height (OH), otolith perimeter (OP) and sulcus perimeter (SP) in mm (Figure ); and otolith area (OA) and sulcus area (SA) in mm 2 . Using these measurements the shape indices were then calculated: circularity (OP 2 /OA), rectangularity (OA/[OL × OH]), aspect ratio (OH/OL; %), percentage of the otolith area occupied by the sulcus (SA/OA; %), ellipticity ([OL − OH]/[OL + OH]), and form factor ([4π × OA/OP 2 ]) (Avigliano et al., ; De Carvalho, Vaz‐dos‐Santos, Spach, & Volpedo, ; Tuset, Lombarte, & Assis, ).…”
Section: Methodsmentioning
confidence: 99%
“…These structures assist the hearing and perception of the external environment (Ladich & Schulz-Mirbach, 2016). Otoliths are excellent tools for various studies of fish populations such as: habitat use and connectivity between populations using the chemistry of the otolith (Carvalho et al, 2017;Maciel et al, 2020), environmental stress indicated by the deposition of vaterita (Carvalho et al, 2019a;Holmberg et al, 2019), and age and growth (Soeth et al, 2018;Maciel et al, 2018).…”
Section: Introductionmentioning
confidence: 99%