Age, growth, and reproduction of Dentex maroccanus (Actinopterygii: Perciformes: Sparidae) in the Saros Bay (north Aegean Sea)

Abstract

Gul G., Ismen A., Arslan M. 2014. Age, growth, and reproduction of Dentex maroccanus (Actinopterygii:Perciformes: Sparidae) in the Saros Bay (north Aegean Sea). Acta Ichthyol. Piscat. 44 (4): 295-300.Background. The Morocco dentex, Dentex maroccanus Valenciennes, 1830, is a sparid species, which has economical value and its population is expanding in a 20-500 m depth range throughout the Mediterranean. Worldwide, there is a lack of information about the biology (age, growth, reproductive season, first maturity length) of this species. This study provides the first data on population parameters of D. maroccanus in the Aegean Sea. Conclusion.Results reported in this work will contribute to the knowledge on the biology of D. maroccanus in the north Aegean Sea and also to a better understanding of its role in the marine ecosystem.

Length–weight relationships of 9 commercial fish species from the North Aegean Sea

“…The species studied included Dentex maroccanus, Trachurus picturatus and Helicolenus dactylopterus, for which reliable LWR estimates are few in the literature, while none has been published for the Greek seas (FROESE & PAULY, 2017). There is a total of only five LWR estimates available for D. maroccanus in FishBase: two from the Eastern Atlantic (NGUYEN & WOJCIECHOWSKI, 1972;MENNES, 1985) and three from the Aegean Sea (KARAKULAK et al, 2006;CEYHAN et al, 2009;GUL et al, 2014). LWR estimates for D. maroccanus from the Aegean Sea were also presented by ISMEN et al (2007).…”

“…p values for all species were <0.001. ISMEN et al (2007) and GUL et al (2014), the sample sizes in the aforementioned datasets are very small, <10 individuals. Our estimates for the LWR parameters for D. maroccanus are similar to those of GUL et al (2014) for Saros Bay, which is located at the northernmost part of the Aegean Sea.…”

“…ISMEN et al (2007) and GUL et al (2014), the sample sizes in the aforementioned datasets are very small, <10 individuals. Our estimates for the LWR parameters for D. maroccanus are similar to those of GUL et al (2014) for Saros Bay, which is located at the northernmost part of the Aegean Sea. Concerning T. picturatus, there are only five datasets available in FishBase: four from the Eastern Atlantic (ISIDRO, 1990;BORGES et al, 2003;MENDES et al, 2004;TORRES et al, 2012) and a single dataset from the Western Mediterranean (MERELLA et al, 1997).…”

Some Population Parameters of Morocco dentex, Dentex maroccanus Valenciennes, 1830 in the Northeastern Mediterranean Sea

“…Dentex maroccanus (Morocco dentex) is an Atlantic-Mediterranean fish [1] and a significant demersal commercial sparid species that is present throughout the Mediterranean [2]. Morocco dentex inhabits the muddy lower shelf [3] and lives independently of the bottom [4].…”

“…It has been determined that there is no published study about the population parameters of this species inhabiting the Mediterranean Sea. There are several studies on age, growth, and reproduction in Algeria [6] and Saros Bay [2], on the length-weight relationship in Saros Bay [27] and the northeastern Aegean Sea [7], on ecological distribution on the shelf of Antalya Gulf [1], on diet composition in the central Turkish Aegean Sea [8]. In order to generate information to assist future stock management and sustainable fishing, this study is the first to give some population parameters such as length-weight relationship (LWR), length-length relationship (LLR), and condition factor for D. maroccanus in the northeastern Mediterranean Sea.…”