The length-weight and length-length relationships of bluefish, Pomatomus saltatrix (Linnaeus, 1766) from Samsun, middle Black Sea region

Abstract

In this study, length-weight relationship (LWR) and length-length relationship (LLR) of bluefish, Pomatomus saltatrix were determined. A total of 125 specimens were sampled from Samsun, the middle Black Sea in 2014 fishing season. Bluefish specimens were monthly collected from commercial fishing boats from October to December 2014. All captured individuals (N=125) were measured to the nearest 0.1 cm for total, fork and standard lengths. The weight of each fish (W) was recorded to the nearest 0.01 g. According to results of analyses, there were no statistically significant differences between sexes in term of length and weight (P˃0.05). The minimum and maximum total, fork and standard lengths of bluefish ranged between 13.5-23.6 cm, 12.50-21.80 cm and 10.60-20.10 cm, respectively. The equation of length-weight relationship were calculated as W=0.008TL 3.12 (r 2 >0.962). Positive allometric growth was observed for bluefish (b>3). Lengthlength relationship was also highly significant (P<0.001) with coefficient of determination (r 2 ) ranging from 0.916 to 0.988.

A Review and the Length-Weight Relationship of Bluefish, Pomatomus saltatrix (Linnaeus, 1766), Pisces: Pomatomidae, at the Marine Extractive Reserve (RESEX-Mar) of Arraial do Cabo, Rio de Janeiro State, Brazil

“…Size variation has important implications on many aspects of fisheries science and population dynamics [44]. Studies on Length-Weight Relationship (LWR) are very limited [45]- [50]. The study of LWRs is considered important to obtain different types of information such as growth rates, age structures, age at first maturity, stock discrimination and studies on population dynamics [50]- [58] to subsidize futures and betters fisheries managements around the world.…”

“…Studies on Length-Weight Relationship (LWR) are very limited [45]- [50]. The study of LWRs is considered important to obtain different types of information such as growth rates, age structures, age at first maturity, stock discrimination and studies on population dynamics [50]- [58] to subsidize futures and betters fisheries managements around the world. Other than that, LWRs can also be used to find the relative condition factor, establish-Open Access Library Journal ing performance equations to estimate the number of fish landings and compare the population in space and time [59].…”

Preliminary study on otolith chemistry and otolith morphology of two demersal fish species, European hake Merluccius merluccius (Linnaeus, 1758) and striped red mullet (Mullus surmuletus, Linnaeus, 1758) in the Sea of Marmara

“…Although samples from different regions cannot be taken and analyzed, in the present study findings are expected to form complementary data that will be a source for future scientific research on similar species. There are many studies examining the morphology of otoliths for descripting fish stocks in different parts of the world and in Seas of Turkey (Campana and Casselman, 1993;Campana et al, 1995;Monteiro et al, 2005;Özpiçak et al, 2017;Bal et al, 2018). They made a significant contribution to the stock descriptions of the investigated species in these studies.…”

Karadeniz Bölgesi’nden Örneklenen Lüfer Balığının, Pomatomus saltatrix (Linnaeus, 1766) Otolit Şekil Analizi

“…Throughout these migrations' bluefish have been highly exploited, especially in area of western Black Sea and Marmara Sea (Ceyhan and Akyol 2006). Because of the commercial importance of bluefish, most of the studies were focused on age determination (Ceyhan et al, 2007), growth parameters (Cengiz et al, 2013), length-weight relationshisps (Özpiçak et al, 2017;Cumplido et al, 2018), diet (Buckel et al, 2004;Lucena et al, 2006), otolith size-length relationships (Cengiz et al, 2012;Zengin et al, 2017;Bal et al, 2018a), selectivity (Acarlı et al, 2013;İlkyaz, 2018) and morphometric variation (Turan et al, 2006). On the other hand, there are limited studies about stock structure of bluefish (Graves et al, 1992).…”