Comparative morphology of the sagittal otolith in <i>Serranus</i> spp.

Tuset, Víctor M.; Lombarte, Antoni; González, Jorge Iván; Pertusa, José; Lorente, María José

doi:10.1111/j.1095-8649.2003.00262.x

Cited by 132 publications

(161 citation statements)

References 34 publications

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“…The size of the sulcus has also been associated with mobility (Lombarte and Popper 1994, Arellano et al 1995, Tuset et al 2003. For example, in some species of the genus Merluccius, this index was associated with water column use; however, in some species of the genus Mullus, it was associated with differences in feeding behavior (Aguirre and Lombarte 1999).…”

Section: Discussionmentioning

confidence: 99%

“…La nomenclatura de los índices utilizados fue tomada de Tuset et al (2013) y Volpedo et al (2008). La circularidad da información acerca de la complejidad del contorno de los otolitos (Tuset et al 2003). La rectangularidad da información sobre la aproximación a una forma rectangular o cuadrada, siendo igual a 1 un rectángulo o cuadrado perfecto.…”

Section: Morfometría De Los Otolitosunclassified

“…La elipticidad refleja la similitud del otolito con una elipse, tendiendo a la circularidad con valores cercanos a 0. El factor de forma es un valor adimensional que indica la similitud del contorno de los otolitos respecto de un círculo y sus valores están comprendidos entre 0 y 1, siendo un valor de 1 para un círculo perfecto (Tuset et al 2003). El índice SS/SO determina qué porcentaje de la superficie del otolito está ocupado por el sulcus.…”

Section: Morfometría De Los Otolitosunclassified

“…Ellipticity reflects the similarity to an ellipse, values close to 0 indicating a tendency towards circularity. The form factor is a dimensionless value that indicates the similarity of the otolith contour to a circle; its values range from 0 to 1, a value of 1 corresponding to a perfect circle (Tuset et al 2003). The SA/OA index indicates the percentage of the otolith area occupied by the sulcus.…”

Section: Otolith Morphometrymentioning

confidence: 99%

“…The nomenclature of the indices used was taken from Tuset et al (2013) and Volpedo et al (2008). Circularity provides information on the complexity of the otolith contour (Tuset et al 2003). Rectangularity gives information on the approximation to a rectangular or square shape, a value of 1 indicating a perfect rectangle or square.…”

Section: Otolith Morphometrymentioning

confidence: 99%

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Otolith Sr:Ca ratio and morphometry as indicators of habitat of a euryhaline species: The case of the silverside Odontesthes bonariensis

Avigliano

Villatarco²,

Volpedo

2015

Cienc. Mar.

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ABSTRACT. The silverside Odontesthes bonariensis is a euryhaline species native of South America and represents a very important fishing resource for the Plata Basin (Argentina and Uruguay). This study compares the Sr:Ca ratio of water as well as the Sr:Ca ratio and morphometry of the sagittal otolith of the silverside present in different environments (one salt lake, two freshwater dams, one lagoon, and one estuary) in order to evaluate the use of these variables as markers of habitat. The pattern of the Sr:Ca ratio in the water agrees with the one found in the otoliths, showing a positive relationship with the conductivity of the water. Univariate and multivariate analyses of variance indicated significant differences (P < 0.05) among the localities studied for the morphometric indices. The discriminant function analysis provided a high percentage of correctly classified individuals for the saltwater environment (100%) and the lentic water bodies and estuary (60-80%), circularity and form factor being the most relevant morphometric variables. These results indicate that the Sr:Ca ratio and otolith morphometry are good markers of habitat for this important resource.Key words: morphometry, Sr:Ca, otolith, Odontesthes bonariensis, Argentina. RESUMEN. El pejerreyOdontesthes bonariensis es una especie eurihalina nativa de Sudamérica y representa un importante recurso pesquero para la cuenca del Plata (Argentina y Uruguay). En este estudio se comparó la relación Sr:Ca del agua y la relación Sr.:Ca y morfometría de los otolitos sagittae de pejerreyes presentes en diferentes ambientes (un lago de agua salada, dos embalses de agua dulce, una laguna y un estuario) con el objetivo de evaluar el uso de estas variables como marcadores de hábitat. El patrón de la relación Sr:Ca del agua concuerda con la hallada en los otolitos, mostrando una relación positiva con la conductividad del agua. Los análisis univariados y multivariados indicaron diferencias (P < 0.05) entre las localidades estudiadas para los índices morfométricos. El análisis discriminante mostró un elevado porcentaje de individuos correctamente clasificados para el ambiente de agua salada (100%), los cuerpos de agua lenticos y el estuario (60-80%), siendo la circularidad y el factor de forma los índices morfométricos de mayor relevancia para esta clasificación. Estos resultados indican que la relación Sr:Ca y la morfometría del otolito son buenos marcadores de hábitat para este importante recurso.

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Section: Discussionmentioning

confidence: 99%

Section: Morfometría De Los Otolitosunclassified

Section: Otolith Morphometrymentioning

confidence: 99%

Section: Otolith Morphometrymentioning

confidence: 99%

See 3 more Smart Citations

Otolith Sr:Ca ratio and morphometry as indicators of habitat of a euryhaline species: The case of the silverside Odontesthes bonariensis

Avigliano

Villatarco²,

Volpedo

2015

Cienc. Mar.

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Imagery at the Organismic Level: From Body Shape Descriptions to Micro‐Scale Analyses

Sagnes

2012

Fluvial Remote Sensing for Science and Management

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Scanning electron microscopy and morphological analysis reveal differences in the otolith morphology of three species of the family Lethrinidae (Teleostei: Perciformes) from Yemen

Jawad

Shamsan

Aguilar

et al. 2022

The Anatomical Record

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Otoliths, or ear-stones, are calcareous components in the static-acoustic organs of teleost fishes with a characteristic morphology. As such, they are widely used in fisheries because of the information stored in them concerning, for example, environment, age, and so forth. Otoliths of three lethrinid species Lethrinus borbonicus (Valenciennes, 1830), L. lentjan (Lacepède, 1802), and L. mahsena (Forsskål, 1775) were collected from fish caught along the Red Sea coast of Yemen. Images taken with a scanning electron microscope were used to determine their characteristics. Twenty-two characters were defined to describe the shapes of the otoliths. Eleven measurements of distance between selected features were used for a linear regression and multivariate analysis to characterize the species by their otoliths. The results illustrate ontogenetic changes for different age groups based on the recorded shapes. All three species show a linear relationship between the total length and the morphometric measurements. A linear discriminant analysis shows marked differences between the otoliths of the three species and emphasizes the importance of the measured variables.Otoliths of L. lentjan and L. borbinicus are more similar to each other and differ from those of L. mahsena. A comparison with previously published otoliths of the species studied from other areas confirms an intraspecific uniformity across larger geographic distances, making the characters useful for diagnostic purposes.

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Comparative morphology of the sagittal otolith in Serranus spp.

Cited by 132 publications

References 34 publications

Otolith Sr:Ca ratio and morphometry as indicators of habitat of a euryhaline species: The case of the silverside Odontesthes bonariensis

Otolith Sr:Ca ratio and morphometry as indicators of habitat of a euryhaline species: The case of the silverside Odontesthes bonariensis

Imagery at the Organismic Level: From Body Shape Descriptions to Micro‐Scale Analyses

Scanning electron microscopy and morphological analysis reveal differences in the otolith morphology of three species of the family Lethrinidae (Teleostei: Perciformes) from Yemen

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