Ontogenetic variation in the sagitta otolith of Centropomus undecimalis (Actinopterygii: Perciformes: Centropomidae) in a tropical estuary

Neto, Renato Bot; Carvalho, Bárbara Maichak de; Júnior, Roberto Schwarz; Spach, Henry Louis

doi:10.3750/aiep/03014

Cited by 4 publications

(4 citation statements)

References 26 publications

(41 reference statements)

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“…66-57.46;Brenha-Nunes et al, 2016). This value of aspect ratio indicates that there is no variation in habitat use between juveniles and adults the C. undecimalis, in both life stages C. undecimalis uses habitats with unconsolidated sediment and frequents the water column due to the presence of rostrum in juveniles and adults (Bot Neto et al, 2020). For C. ensiferus, it is not possible to make correlations of habitat use patterns between juveniles and adults due to the lack of studies otoliths of adults individuals.…”

Section: Discussionmentioning

confidence: 99%

“…In this study, we examined the morphometric variation and contour of the sagittae otolith from juveniles specimens of two species from the genus Centropomus (C. undecimalis and C. ensiferus). The species showed otolith shape that varied from elliptical to trapezoidal, rostrum and excisura present as a characteristic diagnostic trait for the genus Centropomus (Brenha-Nunes et al, 2016;Bot Neto et al, 2020;Granados-Amores et al, 2020). The areas of the sulcus acusticus showed significant variations between species, juveniles C. ensiferus showed a larger area of the sulcus acusticus indicating greater auditory sensitivity compared to C. undecimalis juveniles.…”

Section: Discussionmentioning

confidence: 99%

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Otolith as a tool to differentiate juveniles of two species Centropomidae

Carvalho,

Bot Neto,

Schwarz Júnior

et al. 2024

Pap. Avulsos Zool.

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Centropomus undecimalis and Centropomus ensifurus are a species belonging to the family Centropomidae, which has an important role in estuarine ecosystem. The present study aimed at comparing the otoliths shape of juveniles both species collected in in the lower São Francisco River (10°28′34.02″S, 36°24′27.02″W). In the laboratory, 52 otoliths were extracted, photographed, measured and the contour was analyzed by the wavelet method. The otolith contours varied between species (n = 28 C. ensiferus and n = 24 C. undecimalis). The Linear Discriminant Analysis correctly reclassified 92.3% of all otoliths among species. MANOVA also evidenced significant differences in contour between species (F = 3.73; p < 0.0001). The results suggest that C. ensiferus is adapted to enviroments with higher turbidity and the C. undecimalis tends to colonize environments with lower turbidity and spends more time in the water column.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Otolith as a tool to differentiate juveniles of two species Centropomidae

Carvalho,

Bot Neto,

Schwarz Júnior

et al. 2024

Pap. Avulsos Zool.

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“…The morphology of otoliths is complex, being influenced by growth parameters (Xiong et al ., 2015), which could be related to morphological and morphometric variations such as distinct growth rates in the same population (Tuset et al ., 2019), first maturation (Carvalho et al ., 2020), and physiological stress (Holmberg et al ., 2018). It is possible to describe patterns of habitat use by using ontogenetic variations in the otolith shape (Carvalho et al ., 2015; Bot et al ., 2020). Conversely, widely distributed species may have different otolith morphotypes, as observed for Micropogonias furnieri (Santos et al ., 2017) and Trachurus picturatus (Vasconcelos et al ., 2018).…”

Section: Introductionmentioning

confidence: 99%

Otolith shape can be used as a tool to infer population connectivity among individuals of Larimus breviceps at Southwestern Atlantic

Carvalho,

Barbieri,

Syrio

et al. 2024

J. Mar. Biol. Ass.

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Otoliths are an excellent tool for analysing the pattern of habitat use between adults and juveniles and connectivity between fish populations. Larimus breviceps is a species belonging to the family Sciaenidae, which has an important role in the marine food chain, as it is one of the most abundant and frequent species in the bycatch of coastal shrimp fisheries in Brazil. The present study aimed at comparing the otolith shape of specimens collected in three different Brazilian coastal areas: Sergipe (SE), northeastern region; São Paulo (SP), southeastern region; and Paraná (PR), southern region. In a laboratory, 88 otoliths were extracted, photographed, and the contour was analysed by the wavelet method (32 from SE, 28 from SP, and 28 from PR). The otolith contours varied between sampling sites. Linear discriminant analysis correctly reclassified 60.23% otoliths by the sampled sites, with the best reclassifications occurring in SE (62.5%), followed by PR (60.71%) and SP (57.14%). Multivariate analysis of variance also evidenced significant differences in contours among the sampling sites (F = 2.3; P < 0.005). Thus, two morphotypes of otoliths were found for L. breviceps: one from Sergipe (northeastern Brazil) and the second one from southeastern–southern Brazil, indicating connectivity between the populations off São Paulo and Paraná, to be confirmed by future genetic studies.

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“…Several studies have described the morphology and morphometry of otoliths of species important for artisanal and recreational fisheries in southeastern-southern Brazil (Siliprandi et al, 2014;Brenha-Nunes et al, 2016;Maciel et al, 2019;Dal Negro et al, 2021). Conversely, few studies have been conducted in northeastern Brazil, making it impossible future studies of connectivity or fishing stocks for species with wide distribution along the Brazilian coast (Freire et al, 2017;Assis et al, 2020;Bot et al, 2020). Thus, this study was conducted with the objective of describing the morphology and morphometry of sagitta otoliths of P. virginicus, M. cuiaranensis and C. nobilis, and assessing the occurrence of ontogenetic changes to serve as basis for future studies related to diet composition and connectivity between populations.…”

Section: Introductionmentioning

confidence: 99%

Sagitta otolith of three demersal species in a tropical environment

et al. 2021

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The objective of this study was to describe the morphology and morphometry of saggitta otoliths of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis in a tropical environment. Fishes were caught with rod and reel in competitive fishing events promoted in 2014-2015 along the coast of Sergipe. A total of 174 pairs of sagitta otoliths of P. virginicus, 181 of M. cuiaranensis and 77 of C. nobilis was extracted. In general, the sagitta otoliths of all three species analyzed here presented different morphology and shape indices. The permutational multivariate analysis of variance (PERMANOVA) demonstrated significant differences among species and ontogenetic phases within each species using morphometry and shape indices. The linear discriminant analysis (LDA) presented a 98.3% correct reclassification of the otoliths by species.

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Ontogenetic variation in the sagitta otolith of Centropomus undecimalis (Actinopterygii: Perciformes: Centropomidae) in a tropical estuary

Cited by 4 publications

References 26 publications

Otolith as a tool to differentiate juveniles of two species Centropomidae

Otolith as a tool to differentiate juveniles of two species Centropomidae

Otolith shape can be used as a tool to infer population connectivity among individuals of Larimus breviceps at Southwestern Atlantic

Sagitta otolith of three demersal species in a tropical environment

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