Relationships between fish length and otolith size for five cyprinid speciesfrom Lake Ladik, Samsun, Turkey

Abstract

The relationships between size (length and width) of the lagenar (asteriscus) and the utricular (lapillus) otoliths and body length for five cyprinid fish species, freshwater bream Abramis brama, white bream Blicca bjoerkna, Prussian carp Carassius gibelio, brond-snout Chondrostoma regium, and rudd Scardinius erythrophthalmus, collected from Lake Ladik from November 2009 through October 2010, are presented. The right and left side measurements of otoliths were pooled in all cases except asteriscus length in Prussian carp. Nonlinear and linear functions provided the best fit for 80% and 20% of all species, respectively. All relationships were highly significant (P < 0.001, R 2 > 0.71) and the mean percent prediction errors were less than 10%. The results showed that reliable original size estimates of all species studied are obtainable from their otolith biometrics. The regressions from this study can be useful for investigators examining food habits of piscivorous fauna and sizes of these fishes in archaeological samples.

Regional variation of relationship between total length and otolith sizes in the three Atherina boyeri Risso, 1810 populations, Turkey

“…Total length-otolith size relationships and their significance may vary among fish species or among different populations of the same species (Hunt, 1992). The relationship between fish length and otolith size has been used successfully in several studies for invasive and native marine and freshwater fish species (Battaglia et al, 2015;Humston et al, 2015;Zan et al, 2015;Viva et al, 2015;Yılmaz et al, 2015).…”

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

“…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.…”

Morphometrics Analysis of Sagitta Otolith in Pool Barb, Puntius sophore (Hamilton, 1822)

“…These results are similar to previous studies. 33,34 . However, other studies depicted that the relationship of otolith variables and fish somatic growth are not necessarily linear.…”