Length-Weight Relationships and Relative Condition Factor of Spicara flexuosum (Rafinesque, 1810) Inhabiting the Black Sea and the Turkish Straits System

Length-weight relationships and condition factors of Spicara flexuosa collected from Turkish coastal waters were evaluated in this study. The results indicated that samples collected from Istanbul and Çanakkale exhibited positive allometric growth while S. flexuosa showed negative allometric growth in Rize and Sinop-Kastamonu in December 2013 and January 2014 respectively. The minimum total length was found in Istanbul (11.04 cm), and the maximum total length (19.50 cm) was found in Sinop-Kastamonu and the minimum (15 g) and maximum weight (102 g) were collected from Istanbul (Bosphorus Strait) in February 2014. The overall length-weight equation (W=0.0236L2.7334) indicated negative allometric growth from all sampling periods. The relative condition factor among regions varied from 0.99 to 1.08, indicating a state of wellbeing among all locations. On the other hand, overall condition value was found smaller than one. This study provides the baseline data of length-weight relationships and condition factor analyses for S. flexuosa species from Turkish coastal waters for future management purposes for this species.

[1]  M. Kaufmann,et al.  Length-weight relationships for eight Chondrichthyes from the north-eastern Atlantic Ocean , 2022, The Egyptian Journal of Aquatic Research.

[2]  Chrysoula Gubili,et al.  Molecular characterization and phylogeography of Mediterranean picarels (Spicara flexuosa, S. maena and S. smaris) along the coasts of Turkey and the Eastern Mediterranean , 2021 .

[3]  Derya Bostanci,et al.  Marmara Denizi'nde Yaşayan Pagellus acarne (Risso, 1827)'nin Kondisyon Faktörü, Boy-Boy ve Boy-Ağırlık İlişkileri , 2019 .

[4]  C. Sukhn,et al.  Length-weight relationships and relative condition factor of fish inhabiting the marine area of the Eastern Mediterranean city, Tripoli-Lebanon , 2018, The Egyptian Journal of Aquatic Research.

[5]  A. İşmen,et al.  Age and growth of blotched picarel (Spicara maena Linnaeus, 1758) in the Sea of Marmara and Northern Aegean Sea , 2016 .

[6]  M. D. Giosa,et al.  Seasonal Changes in Condition Factor and Weight-Length Relationship of Invasive Carassius gibelio (Bloch, 1782) from Leszczynskie Lakeland, Poland , 2014 .

[7]  Y. Özvarol Length-weight relationships of 14 fish species from the Gulf of Antalya (northeastern Mediterranean Sea, Turkey) , 2014 .

[8]  G. Katselis,et al.  Use of morphological differences for the identification of two picarel species Spicara flexuosa and Spicara maena (Pisces: Centracanthidae) , 2013 .

[9]  N. Demirel,et al.  Weight-length relationships of 28 fish species in the Sea of Marmara , 2012 .

[10]  T. Karidas,et al.  Discrimination of two picarel species Spicara flexuosa and Spicara maena (Pisces: Centracanthidae) based on mitochondrial DNA sequences. , 2011, Journal of fish biology.

[11]  O. Soykan,et al.  Growth and reproduction of blotched picarel (Spicara maena Linnaeus, 1758) in the central Aegean Sea, Turkey , 2010 .

[12]  Y. Iwatsuki,et al.  Comprehensive phylogeny of the family Sparidae (Perciformes: Teleostei) inferred from mitochondrial gene analyses. , 2009, Genes & genetic systems.

[13]  A. İşmen,et al.  Weight–length relationships of 63 fish species in Saros Bay, Turkey , 2007 .

[14]  D. Mcgrath,et al.  Significant differences in the length–weight relationships of neighbouring stocks can result in biased biomass estimates: examples of haddock (Melanogrammus aeglefinus, L.) and whiting (Merlangius merlangus, L.) , 2007 .

[15]  F. Karakulak,et al.  Length-weight relationships for 47 coastal fish species from the northern Aegean Sea, Turkey , 2006 .

[16]  Rainer Froese,et al.  Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations , 2006 .

[17]  Karim Erzini,et al.  Weight–length relationships for fish species discarded in commercial fisheries of the Algarve (southern Portugal) , 2003 .

[18]  K. Stergiou,et al.  Length-weight and length-length relationships of fish species from the Aegean Sea (Greece) , 2002 .

[19]  K. Martin-Smith Length/weight relationships of fishes in a diverse tropical freshwater community, Sabah, Malaysia , 1996 .

[20]  S. Rizkalla A Comparative Study on the Morphometric Characters of Fishes Belonging to Family: Centracanthidae in the Egyptian Mediterranean Waters@@@دراسة مقارنة للصفات المورفومترية لأسماك : Family Centracanthidae في المياه المصرية للبحر المتوسط ) . , 1996 .

[21]  K. Stergiou,et al.  Weight-length relationships for 33 fish species in Greek waters , 1995 .

[22]  P. Whitehead,et al.  Fishes of the North-Eastern Atlantic and the Mediterranean. Vol. 1 , 1986 .

[23]  E. Cren,et al.  THE LENGTH-WEIGHT RELATIONSHIP AND SEASONAL CYCLE IN GONAD WEIGHT AND CONDITION IN THE PERCH , 2022 .