Numerical expressions of otolith shape and morphometric relationships for five fish species in tidal‐linked lagoons in the northern Arabian Sea

Qamar, Nazia; Panhwar, Sher Khan; Awan, K. P.; Farooq, Noureen

doi:10.1111/lre.12288

Cited by 3 publications

(6 citation statements)

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“…Furthermore, we reported that the relationship between otolith length × otolith weight for U. cirrosa was isometric, whereas a negative allometric growth pattern was respectively reported by Aneesh Kumar et al (2017) for opal fish Bembrops caudimacula, Indian ruff Psenopsis cyanea, Hoplostethus rubellopterus and blackspotted gurnard Pterygotrigla hemisticta from samples taken in the south-eastern Arabian Sea, India. The otolith width × otolith weight of U. cirrosa revealed a positive allometric growth, which agrees with the findings of Qamar et al (2019) for squaretail mullet Ellochelon vaigiensis and nuna tengra Mystus gulio. These authors also reported negative allometric growth in Acanthopagrus latus and Mugil cephalus, while reporting an isometric trend for assessments of Daysciaena albida from the northern Arabian Sea.…”

Section: Discussionsupporting

confidence: 89%

“…The otolith width × otolith weight of U. cirrosa revealed a positive allometric growth, which agrees with the findings of Qamar et al . (2019) for squaretail mullet Ellochelon vaigiensis and nuna tengra Mystus gulio . These authors also reported negative allometric growth in Acanthopagrus latus and Mugil cephalus , while reporting an isometric trend for assessments of Daysciaena albida from the northern Arabian Sea.…”

Section: Discussionmentioning

confidence: 99%

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Sexual dimorphism in the otolith shape of shi drum, Umbrina cirrosa (L.), in the eastern Mediterranean Sea: Fish size–otolith size relationships

Başusta

Khan

2021

Journal of Fish Biology

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Little is known about possible differences in sagitta otolith size and shape between sexes of the shi drum, Umbrina cirrosa, and relationships between their body and otolith size. Thus, this study aimed to fill this knowledge gap via examination of 414 sagittal otoliths from 108 male (total length 13.8-26.8 cm) and 99 female (13.5-26.7 cm) U. cirrosa caught between May 2017 and April 2018 in gillnets set at a depth of 15 m in Mersin Bay, Eastern Mediterranean Sea. No statistical differences were observed between the shape indices of the left-sided and right-sided sagitta. However, there were significant differences in the size and shape of otoliths between males and females. The slopes of allometric power functions from otolith width × fish sizes gave significant differences between males and females (ANCOVA, P < 0.05).The relationship for length × weight of otoliths from both males and females showed isometric growth, whereas the relationship of otolith width × otolith weight showed positive allometry. Negative allometric growth was observed for the relationship otolith length × otolith width. In summary, this study revealed the presence of sexual dimorphism in the otolith shape of U. cirrosa, and the data on regression relationships of fish-otolith sizes can be used to estimate fish size from U. cirrosa otolith sizes.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Sexual dimorphism in the otolith shape of shi drum, Umbrina cirrosa (L.), in the eastern Mediterranean Sea: Fish size–otolith size relationships

Başusta

Khan

2021

Journal of Fish Biology

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“…On the other hand, a positive allometric growth pattern was reported by some authors (Kanjuh et al, 2018;Uyan et al, 2019;Yılmaz et al, 2014). In the current study, the otolith perimeter-fish length relationship was negatively allometric, which agrees with the results of Qamar et al (2019) for three fish species. But, positive allometric growth was estimated for the relationship between the otolith area and fish length, which in contrast with the findings of Qamar et al (2019) for five fish species.…”

Section: Discussionsupporting

confidence: 91%

“…Furthermore, we reported that the relationship between otolith weight and fish length for S. coruhensis was negative allometric. This phenomenon was also observed for other fish species such as Acanthopagrus latus, Daysciaena albida, Ellochelon vaigiensis, Mugil cephalus, and Mystus gulio (Qamar et al, 2019). On the other hand, a positive allometric growth pattern was reported by some authors (Kanjuh et al, 2018;Uyan et al, 2019;Yılmaz et al, 2014).…”

Section: Discussionsupporting

confidence: 65%

Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)

Yıldız

Yılmaz

2021

Journal of Anatolian Environmental and Animal Sciences

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The Coruh trout (Salmo coruhensis Turan, Kottelat & Engin, 2010) is an anadromous species inhabit south and southeastern Black Sea basin. This study describes the allometric relationships between sagittal otolith (sagitta) measurements and total length (TL) of the Coruh trout collected from the Çam stream (Artvin, Turkey), and the length-weight relationship. A total of 82 individuals were caught with an electroshock device between May 2017 and April 2018. The length (LO), height (HO), weight (WO), perimeter (PO), and area (AO) of the otolith were recorded for each specimen. Shape indices such as form factor, aspect ratio, circularity, roundness, rectangularity, ellipticity, surface density were calculated using these otolith measurements. Relationships between otolith variables and the somatic growth of fish were defined by the curvilinear function (power model). An analysis of covariance revealed that these relationships did not differ between the left and right sides, and between females and males. All regressions were highly significant (P < 0.001) and mean percent prediction error values were less than 7 %. The relationships of LO, HO, WO, and PO against TL were negative allometric, while the TL-AO relationship was positive allometric. In the analysis of relationships between the otolith shape indices and TL, the values of form factor, rou ndness, and rectangularity indices decreased with fish somatic growth. In contrast, the circularity and surface density indices increased with fish body length. The length-weight relationship was obtained as W = 0.0155*TL 2.87 for overall samples. The difference between the slopes of LWRs of females and males was found insignificant. This study provides the first comprehensive data on the sagittal otolith morphometry of S. coruhensis.

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“…These species migrate mainly in coastal waters but few enter the Indus River Estuary and are confined to freshwater channels. In addition to phenotypic characters, otolith shape and morphology are central to fish taxonomy and systematics (Qamar et al, 2019;Kashani and Panhwar, 2022). In typical bony fishes, the sagitta is usually the largest otolith but in the case of catfishes, the lapillus is the largest pair and is widely used for growth studies and species differentiation (Campana, 2004;Qamar et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Taxonomic and Otolith Shape Parameters of Nine Sympatric Catfishes Commercially Harvested in Pakistan

Farooq

Panhwar

2023

Croatian Journal of Fisheries

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Accurate reorganization of harvested species is essential for appropriate fisheries monitoring but often unnoticed. In this study, an attempt was made to provide an accurate species description based on fish taxonomy and otolith shape parameters of nine sea catfishes living in Pakistan. The lapillus, the largest otolith of catfishes, includes the position of the umbo, the structure of the anterior mesial projection (amp), the incisura linea basalis (ilb) and sulcus lapilli marks (slm) in nine ariid catfishes were evaluated. Discriminant function analysis was performed using twenty-two morphometric parameters showed significant variations between the length of the maxillary barbel, adipose length and preorbital length, which were highlighted as basic discriminating characters. Species without barbells, such as Batrachocephalus mino and Osteogeneiosus militaris, were found to be distant. The taxonomic characters of the genera Netuma and Plicofollis overlapped due to a short adipose fin length. Nevertheless, species Arius arius, Sciades sona and Nemapterxy caelatus differed in a moderate adipose fin length. The preorbital length of Netuma bilineata has a short and rounded snout, while N. thalassina has a long and pointed snout, which is a distinguishing characteristic of both species. The coincident use of fish taxonomy and otolith shape parameters is an effective tool for catfish identification could be helpful in appropriate fisheries sampling programs and management in Pakistan whenever implemented.

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Numerical expressions of otolith shape and morphometric relationships for five fish species in tidal‐linked lagoons in the northern Arabian Sea

Cited by 3 publications

References 20 publications

Sexual dimorphism in the otolith shape of shi drum, Umbrina cirrosa (L.), in the eastern Mediterranean Sea: Fish size–otolith size relationships

Sexual dimorphism in the otolith shape of shi drum, Umbrina cirrosa (L.), in the eastern Mediterranean Sea: Fish size–otolith size relationships

Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)

Taxonomic and Otolith Shape Parameters of Nine Sympatric Catfishes Commercially Harvested in Pakistan

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