Abstract
This study provides the length-weight relationships of four fish species that belong to the Labridae family from the Rize coast in the south-eastern Black Sea, Turkey; (Symphodus ocellatus (Linnaeus, 1758), Symphodus cinereus (Bonnaterre, 1788), Symphodus tinca (Linnaeus, 1758) and Symphodus roissali (Risso, 1810)). A total of 720 fish samples were collected with trammel net between June 2015 and May 2016. The sample sizes, minimum and maximum lengths and weights, length-weight relationships, parameters of a and b, ± 95% CI of b, r2, growth type and statistical analyses of the relationship were determined. The b value estimates varied between 2.73 and 3.21. The r2 value estimates varied between 0.76 (S. ocellatus) and 0.91 (other species).
Highlights
The Symphodus species distributed in the East Atlantic, Black Sea and the Mediterranean to a depth of 1-50 m, on near cliffs and eel-grass beds (Whitehead et al, 1986)
This study aimed to provide data on the relationship between the length and weight of four wrasse fish species captured from the coastal waters of the Eastern Black Sea, Turkey
This study was carried out on four fish species belonging to the Labridae family, which were caught as discard fish during red mullet fishing in Rize region of the Eastern Black Sea between June 2015 and May 2016 (Figure 1)
Summary
The Symphodus species distributed in the East Atlantic, Black Sea and the Mediterranean to a depth of 1-50 m, on near cliffs and eel-grass beds (Whitehead et al, 1986). Some previous studies about the characterization of length-weight relationship (LWR) for fish species in the Black Sea, the coast of Turkey were discussed by Demirhan & Can, 2007; Kalaycı et al, 2007; Ak et al, 2009; Yankova et al, 2011; Ergüden et al, 2011; Özdemir & Duyar, 2013; Kasapoğlu & Düzgüneş, 2013; Satılmış et al, 2014; Gündoğdu et al, 2016; Çalık & Sağlam, 2017; Samsun et al, 2017; Türker & Bal, 2018; Yıldız et al, 2018). There are some length-weight relationship studies conducted in other seas and involving wrasse species
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