Relationships between fish size and otolith measurements for <i>Chlorurus sordidus</i>
 (Forsskål, 1775) and <i>Hipposcarus harid</i>
 (Forsskål, 1775) from the Red Sea coast of Egypt

Mehanna, Sahar F.; Jawad, Laith A.; Ahmed, Yassin A.; El-Regal, Mohamed A. Abu; Dawood, D.

doi:10.1111/jai.12995

Cited by 16 publications

(23 citation statements)

References 13 publications

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“…49(4) 2019: 299 -306 ACTA AMAZONICA ACTA AMAZONICA despite the strong biometric relationships derived from our data, our estimated parameters should be used with caution, as our small sample sizes (mainly those ≤ 10 for B. ronchus, P. harroweri, N. grandicassis, Trichiurus lepturus, and Paralonchurus brasiliensis) and a selective effect of the mesh size used by the shrimp trawlers may have caused the size distributions in our samples to be underrepresented. The lack of statistical differences between left and right sagitta indicates that otoliths on either body side are indistictively usable for fish-size estimations (Battaglia et al 2010;Mehanna et al 2016;Park et al 2018;Yilmaz et al 2015). The high coefficients of determination for the relationships between otolith measurements and fish size in all our species indicates that length or weight of fish can be reliably estimated from otoliths found in stomach contents of predators.…”

Section: Discussionmentioning

confidence: 80%

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast

et al. 2019

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The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine predators.

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Section: Discussionmentioning

confidence: 80%

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast

et al. 2019

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“…Otolith morphology and morphometric relationships are valuable tools in species and stock identification, and can be used in feeding ecology to estimate fish size and biomass (Granadeiro and Silva 2000;Mehanna et al 2016). There are no published reports available on the relationship between fish length and otolith size and length-weight relationship of otoliths from the target habitat or elsewhere for both fish species.…”

Section: Discussionmentioning

confidence: 99%

Relationships between fish length, otolith size and otolith weight in Sperata aor (Bagridae) and Labeo bata (Cyprinidae) from the Ganga River, India

Nazir

Khan

2019

Zoology and Ecology

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The present study was conducted to investigate the relationships between fish length, otolith size and otolith weight. A total of 180 Sperata aor and 171 Labeo bata specimens were collected monthly during January 2016 to March 2017 from the River Ganga at the Narora site. Student’s t-test showed no significant differences in the size of right and left otoliths in the selected fish species, therefore, a single linear regression based on the left otolith was carried out. Fish length was plotted against otolith weight, otolith length and otolith height. Moreover, otolith length was plotted against otolith weight and otolith height. The linear regression model was found to fit the data well for fish length to otolith size in both selected fish species. A strong relationship between otolith length and weight was found in both species (r2 > 0.8). Furthermore, the study revealed that fish length is potentially related to otolith size and a strong relationship between fish length and otolith size exists in S. aor (mean r2 = 0.89) as compared to L. bata (mean r2 = 0.70). Such relationships should be determined for the fish species that are ecologically and socio-economically important in order to understand their trophic relationships, population dynamics and yield estimates.

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“…2); Otolith length (OL, mm), otolith area (OA, mm 2 ), otolith perimeter (OP, mm), sulcus (SU), ostuim (OS), Aspect ratio (AR), Compactness (C) and rectangularity (RE) ) the otolith outline (Fig. 3) were extracted by using ImageJ 1.46r analysis software (Tuset et al 2003b;Lombarte et al 2006;Rohlf, 2006;Short et al 2006;Bilge and Gülşahin, 2014;Yilmaz et al 2014;Mehanna et al 2016;Zischke et al 2016;Osman et al 2018;Mahé et al 2018). The statistical analysis was investigated by different ways such the statistical description for minimum, maximum, and means, the linear regression between otolith outline and fish size.…”

Section: Methodsmentioning

confidence: 99%

“…The otoliths are located in the head of teleost fishes and found in paierd calcareous structures; it is may be useful in the study of biological fish, ecological and fisheries science. Age and growth, movement and varied habitates, popoulation stock and level of trophic ecology were estimated by otolith (Tuset et al, 2003a;Parisi-Baradad et al, 2005;Short et al 2006;Duarte-Neto et al, 2008;Morat et al, 2012;Radhakrishnan et al, 2012;Sadighzadeh et al, 2012;Lord et al, 2012;Bani et al, 2013;Bostanci et al, 2015;Mehanna et al, 2016;Osman et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…The otoliths are widely used tools in the identification and comparative taxonomy of fishes because it is large and inter-specific variability of fish otolith (Battaglia et al, 2010). The morphometric measurements of sagittal otolith has been used in many studies to compare between the closely vareid species (Tuset et al, 2003a;Ponton 2006;Short et al, 2006;Skeljo and Ferri, 2012;Wakefield et al, 2014;Zhuang et al, 2015;Mehanna et al, 2016) and between populations of a single species in marine and freshwater environments (Duarte-Neto et al, 2008;Shepard et al, 2010;Zorica et al, 2010;Zhang et al, 2013;Zischke et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Relationships between fish and otolith dimensions of Epinephelus summana (Forsskål, 1775) and Cephalopholis argus (Schneider, 1801) from the Egyptian Red Sea coast

Mehanna¹,

Osman²,

Hassan³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

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Egyptian Red Sea Otolith morphology analysis is one of the main tools used for fish or stock identification. Moreover, it is used in the stomach content studies for the identification of prey fish and their size according to the relationship between fish and otolith sizes. In the present study, the relationships between fish length and otolith morphological dimensions were investigated for Epinephelus summana (Forsskål, 1775) and Cephalopholis argus (Schneider, 1801) (family: Serranidae). A total of 170 E. summana and 154 E. argus (i.e 340 and 308 sagittal otoliths for E. summana and E. argus respectively) were sampled from the coast of the Egyptian Red Sea off Shalateen fishing ground. The statistical analysis was done by generalized linear models for the relationship between body length and weight and otolith morphology descriptors (length, width, area and perimeter) and shape indices (Aspect ratio, Compactness, rectangularity, Sulcus and Ostium). The results revealed that there is significantly correlation between the TL of fish and the eleven morphology descriptors and shape indices, where the side effect was p<0.05. Also, this study added new information for the region because of lack of data for the relationships between otolith morphometric and fish length.

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Relationships between fish size and otolith measurements for Chlorurus sordidus (Forsskål, 1775) and Hipposcarus harid (Forsskål, 1775) from the Red Sea coast of Egypt

Cited by 16 publications

References 13 publications

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast

Relationships between fish length, otolith size and otolith weight in Sperata aor (Bagridae) and Labeo bata (Cyprinidae) from the Ganga River, India

Relationships between fish and otolith dimensions of Epinephelus summana (Forsskål, 1775) and Cephalopholis argus (Schneider, 1801) from the Egyptian Red Sea coast

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