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Öğe Age and growth of the nakedband gaper, Champsodon nudivittis (Ogilby, 1895), from the Iskenderun Bay, Northeastern Mediterranean(Cahiers De Biologie Marine, 2014) Yaglioglu, Deniz; Deniz, Tomris; Erguden, Deniz; Gurlek, Mevlut; Turan, CemalThe nakedband gaper Champsodon nudivittis (Ogilby, 1895) was first recorded in 2009 on Turkish coastal waters, and has rapidly increased around this region. C. nudivittis is the first lessepsian immigrant of Champsodontid species in the Turkish coastal waters. The present study aims to determine the age and growth parameters of C. nudivittis colonized in the Iskenderun Bay, North-eastern Mediterranean Sea. A total of 296 collected individuals (seasonally average 74 specimens) were studied from November 2011 to October 2012. Total specimen lengths and weights ranged from 6.00 to 14.40 cm and from 1.4 to 29.3 g respectively. Maximum age was 2 years for both sexes. The length-weight relationship was described as W= 0.0040 x L-3.207 (R-2 = 0.957)5 W= 0.0005 x L-3.158 (R-2 = 0.959) and W= 0.0040 x L-3.196 (R-2 = 0.955). The parameters of von Bertalanffy growth fitted to mean observed total lengths-at-age for each sex separately and estimated as L-infinity= 20.41 cm, K= 0.224 year(-1), t(0)= -2.491 year for females,L-infinity= 21.53 cm, K= 0.199 year(-1), t(0)= -2.154 year for males, and as L-infinity= 21.10 cm, K= 0.210 year(-1), t(0)= -2.639 year for combined sexes.Öğe Dietary red clover (Trifolium pratense) on growth performance of common carp (Cyprinus carpio)(Medwell Online, 2007) Turan, Funda; Gurlek, Mevlut; Yaglioglu, DenizThe effects of dietary red clover on growth and body composition were investigated in common carp Cyprinus carpio. The fish (mean body weight 2.01 +/- 0.03 g) were fed with diets supplemented with three concentrations (50, 100 and 200 mg kg(-1)) of red clover and a control diet without red clover, for 12 weeks. The fish fed with diet supplemented with 100 mg kg(-1) red clover exhibited significantly higher growth rates than fish fed with diets supplemented with 50 and 200 mg kg(-1) red clover (p<0.001). The highest values of specific growth rate and food conversion ratio were 2.35 +/- 0.07 and 1.23 +/- 0.01, respectively at 100 mg kg(-1) red clover diet group. Protein efficiency ratio and apparent net protein utilization were significantly higher in 100 mg kg(-1) red clover group than that with other groups (p<0.001). However, significant differences were not observed in carcass moisture and proximate protein, lipid and ash contents among the all diet groups (p>0.05). Survival rate was higher (88%) in all dietary groups. The findings of the present study suggest that 100 mg kg(-1) red clover inclusion improves growth rate, feed utilization and survival of common carp.Öğe Elasmobranch bycatch in a bottom trawl fishery in the Iskenderun Bay, northeastern Mediterranean(Cahiers De Biologie Marine, 2015) Yaglioglu, Deniz; Deniz, Tomris; Gurlek, Mevlut; Erguden, Deniz; Turan, CemalTotal biomass, species composition, depth distribution, seasonal distribution and abundance of elasmobranchs were examined by commercial bottom trawls between 2009 and 2010 from Iskenderun Bay, Turkish coast of the northeastern Mediterranean. From 52 bottom trawl surveys, it was estimated that elasmobranchs represented 23% (190.1 kg.km(-2)) of total fish biomass (840.8 kg.km(-2)) in Iskenderun Bay. Dasyatis pastinaca, Gymnura altavela, Raja clavata and Rhinobatos spp. (Rhinobatos rhinobatos and Glaucostegus cemiculus) showed high occurrence and represented each between 11.10 and 38.46% of the whole elasmobranch biomass. The other species, Dipturus oxyrinchus, Raja miraletus, Torpedo marmorata and Torpedo torpedo, represented each between 0.12 and 2.82% of the total elasmobranchs biomass. Shark species, Mustelus mustelus, Scyliorhinus stellaris, Scyliorhinus canicula, Galeus melastomus and Squatina squatina, represented each between 0.45 and 1.7% of the whole elasmobranchs biomass. When seasonal distribution was examined, total catch of fish were 32.38, 23.24, 10.71 and 33.65%, of which elasmobranchs species constitute 24.11, 34.12, 20.42 and 21.34% in autumn, winter, spring and summer respectively. Single or sporadic captures were also recorded for Isurus oxyrinchus, Carcharhinus plumbeus, Carcharhinus altimus, Oxynotus centrina, Raja radula, Rhinoptera marginata and Pteromylaeus bovinus.Öğe Genetic Identification and Taxonomic Relationship of Mediterranean Mugilid Species Based on Mitochondrial 16S rDNA Sequence Data(Medwell Online, 2010) Erguden, Deniz; Gurlek, Mevlut; Yaglioglu, Deniz; Turan, CemalThis study examines eight mugilid species: Mugil cephalus, Chelon labrosus, Oedalachelis labeo, Liza abu, Liza aurata, Liza saliens and Liza ramada from the Mediterranean Sea and Mugil soiuy Black Sea on the basis 16S rDNA gene of mitochondrial DNA. The 16S rDNA dataset contained 121 variable and parsimony informative sites and the mean nucleotide diversity (Pi) was found to be 0.05. Haplotype diversity was found to be 0.88 and 7 different haplotypes were observed. Species specific haplotypes were detected and only C. labrosus and L. ramada shared the same Haplotype (H-3). Sequencing analysis revealed that M. cephalus was clearly separated from the other species. For inter-generic comparisons, there was no genetic difference between C. labrosus and L. ramada and C. labrosus and O. labeo should be considered within the genus Liza. Moreover M. soiuy and L. abu should be considered under the genus Liza, or new genus name should be given for these two species.Öğe Genetic identification and taxonomic relationship of mediterranean mugilid species based on mitochondrial 16s rDNA sequence data(2010) Erguden, Deniz; Gurlek, Mevlut; Yaglioglu, Deniz; Turan, CemalThis study examines eight mugilid species: Mugil cephalus, Chelon labrosus, Oedalachelis labeo, Liza abu, Liza aurata, Liza saliens and Liza ramada from the Mediterranean Sea and Mugil soiuy Black Sea on the basis 16S rDNA gene of mitochondrial DNA. The 16S rDNA dataset contained 121 variable and parsimony informative sites and the mean nucleotide diversity (Pi) was found to be 0.05. Haplotype diversity was found to be 0.88 and 7 different haplotypes were observed. Species specific haplotypes were detected and only C. labrosus and L. ramada shared the same Haplotype (H3). Sequencing analysis revealed that M. cephalus was clearly separated from the other species. For inter-generic comparisons, there was no genetic difference between C. labrosus andL. ramada and C. labrosus and O. labeo should be considered within the genus Liza. Moreover M. soiuy and L. abu should be considered under the genus Liza, or new genus name should be given for these two species. © Medwell Journals, 2010.Öğe Genetic variation of Atlantic horse mackerel (Trachurus trachurus) in the Turkish waters(Cahiers De Biologie Marine, 2009) Turan, Cemal; Ozturk, Bayram; Caliskan, Mahmut; Duzgunes, Ertug; Gurlek, Mevlut; Yaglioglu, Deniz; Hazar, DurulGeographic variations of Truchurus trachurus based on mitochondrial 16S rDNA gene from 8 locations, including the Black, Marmara, Aegean and north-eastern Mediterranean Seas, were investigated. Restriction fragment length polymorphism (RFLP) analyses revealed 14 different composite haplotypes for 307 individuals and diagnostic restriction sites for discriminating among populations. The distribution of haplotypic groups mostly followed the geographic origin of populations. Average haplotype diversity within populations was high (0.7311), and nucleotide diversity was low (0.0071). Mean nucleotide divergence among samples of T. trachurus was 0.00271. The highest value of pairwise inter-group nucleotide divergence was detected between the West and East Black Sea samples (0.01119), and the lowest (-0.00018) between the two North-eastern Mediterranean samples. In Monte Carlo pairwise comparisons of haplotype frequencies genetically different populations were detected. The distribution of haplotypes and the pairwise estimate of nucleotide divergence exposed high differentiation of the Black Sea (BS2) population with respect to the others. Mantel's test showed that the genetic distances between these Populations were not associated with their geographical distances (r = 0.326; P > 0.05).Öğe Metals (major, essential to non-essential) composition of the different tissues of three demersal fish species from Iskenderun Bay, Turkey(Elsevier Sci Ltd, 2010) Yilmaz, Ayse Bahar; Sanguen, Mustafa Kemal; Yaglioglu, Deniz; Turan, CemalThis study was performed to investigate certain major and toxic metal concentrations in different tissues of three demersal fish species (Triglia lucerna, Lophius budegassa, Solea lascaris). Generally, skin and liver exhibited higher metal concentrations than did muscle. Sodium and arsenic concentrations were found at higher levels in muscle tissues than in livers and skin, while zinc and nickel in different organs were classified as follows: skin > liver > muscle tissues. The concentrations of trace metals in fish samples indicated that S. lascaris was more contaminated than were other fish species, followed by L. budegassa and T. lucerna. It may be concluded that consumption of these species from this region is not likely to pose a threat for human health. However, although the concentrations are below the limit values for fish muscles, a potential danger may emerge in the future, depending on domestic waste waters and industrial activities in the region. Therefore, further monitoring programmes should be conducted. (C) 2010 Elsevier Ltd. All rights reserved.Öğe Population identification of common cuttlefish (Sepia officinalis) inferred from genetic, morphometric and cuttlebone chemistry data in the NE Mediterranean Sea(Consejo Superior Investigaciones Cientificas-Csic, 2010) Turan, Cemal; Yaglioglu, DenizThe population structures of the common cuttlefish Sepia officinalis from the north-eastern Mediterranean (Antalya and Iskenderun Bays), Aegean (Izmir Bay) and Marmara Seas were analyzed with mtDNA PCR-RELP. body morphometry and cuttlebone chemistry. Analysis of a ND 5/6 (Nikotin Amid Adenin Dehidrojenaz-5/6) gene segment of mtDNA revealed seven haplotypes from 120 individuals. No haplotype sharing was observed among sampling sites. The average nucleotide divergence between samples was 0.009390. and the highest genetic divergence (0.015279) was observed between the Iskenderun Bay and Marmara Sea samples. The lowest genetic divergence (0.003786) was between the Aegean Sea and Antalya Bay samples. Highly significant differences (P<0.001) between all sampling sites were observed in both the Monte Carlo and AMOVA analyses. In the UPGM tree, the neighbouring Antalya and Aegean samples clustered as the closest chides, and the most isolated Marmara and Iskenderun Bay samples clustered as die most divergent chides. In discriminant function analysis. the classification success rates in assigning fishes to the correct region of origin were 66 and 100% for morphometry and cuttlebone chemistry respectively. In the morphometric analysis, only the Marmara Sea and Iskenderun Bay samples were differentiated from each other, and the rest of the samples overlapped each other. In cuttlebone chemistry analysis, univariate statistics revealed highly significant (P<0.001) differences among locations for 12 elements: Al. Ca. Cd. Cr, Cu, Fe, K, Mg, Mn, Na. Pb, Zn. In multivariate analysis, highly significant differences (P<0.001) were observed between the four locations. This study showed that there are four discrete populations of S. officinalis in Turkish coastal waters.Öğe Population structure analysis of Red Barracuda, Sphyraena Pinguis (Perciformes, Sphyraenidae) in the North-Eastern Mediterranean sea using morphometric and meristic characters(Parlar Scientific Publications, 2015) Yaglioglu, Deniz; Turan, Cemal; Gurlek, MevlutPopulation structure of red barracuda, Sphyraena pin-guis, in north-eastern Mediterranean waters was investigated using morphometric and meristic characters. In discriminant function analysis, first, second and third discriminant functions explained 48.6%, 30.2% and 21.2% of the between-group variation respectively. Plotting first and second discriminant functions explained 81.1% of the between-group variation, and revealed the existence of four morphologically distinct populations of S. pinguis in the north-eastern Mediterranean coastal waters. A correct classification of individuals into their original population was ranged from 93.3% to 96.7%, and the overall random assignment was high (96.7%). The proportion of correctly classified individuals into their original group was the same and greatest (96.7%) for the Iskenderun Bay and Syrian samples. In hierarchical cluster analysis, the Mersin Bay sample was clustered as the first clade, while the Iskenderun Bay and Syrian samples were in the neighbouring clades, and the Antalya Bay sample was clustered as the most divergent. Examination of the contribution of each morphometric and meristic character to the first and second principal components revealed that the observed differences were mainly from the characters associated on head length and eye diameter, indicating that these characters are important in the detected differentiation of the populations.Öğe POPULATION STRUCTURE ANALYSIS OF RED BARRACUDA, SPHYRAENA PINGUIS (PERCIFORMES, SPHYRAENIDAE) IN THE NORTH-EASTERN MEDITERRANEAN SEA USING MORPHOMETRIC AND MERISTIC CHARACTERS(Parlar Scientific Publications (P S P), 2015) Yaglioglu, Deniz; Turan, Cemal; Gurlek, MevlutPopulation structure of red barracuda, Sphyraena pinguis, in north-eastern Mediterranean waters was investigated using morphometric and meristic characters. In discriminant function analysis, first, second and third discriminant functions explained 48.6%, 30.2% and 21.2% of the between-group variation respectively. Plotting first and second discriminant functions explained 81.1% of the between-group variation, and revealed the existence of four morphologically distinct populations of S. pinguis in the north-eastern Mediterranean coastal waters. A correct classification of individuals into their original population was ranged from 93.3% to 96.7%, and the overall random assignment was high (96.7%). The proportion of correctly classified individuals into their original group was the same and greatest (96.7%) for the Iskenderun Bay and Syrian samples. In hierarchical cluster analysis, the Mersin Bay sample was clustered as the first clade, while the Iskenderun Bay and Syrian samples were in the neighbouring clades, and the Antalya Bay sample was clustered as the most divergent. Examination of the contribution of each morphometric and meristic character to the first and second principal components revealed that the observed differences were mainly from the characters associated on head length and eye diameter, indicating that these characters are important in the detected differentiation of the populations.Öğe Systematics of Scorpaeniformes Species in the Mediterranean Sea Inferred from Mitochondrial 16S rDNA Sequence and Morphological Data(Polish Acad Sciences, Inst Systematics Evolution Animals, 2009) Turan, Cemal; Gunduz, Islam; Gurlek, Mevluet; Yaglioglu, Deniz; Erguden, DenizGenetic and morphological divergence and phylogenetic relationships of Scorpaeniformes fish including two genera and six species, Helicolenus dactylopterus, Scorpaena maderensis, Scorpaena porcus, Scorpaena elongata, Scorpaena scrofa, Scorpaena notata, living in the Mediterranean Sea, were investigated with morphological and mitochondrial 16S rDNA sequence data. The mean nucleotide diversity was found to be 0.0792. Average Sequence divergence between species of Sebastidae and Scorpaenidae was 8.4%, and 6.4%. between species of the genus Scorpaena, For congeneric comparisions, the lowest genetic divergence (0.7%) was observed between S. porcus and S. notata, and the highest divergence (10.8%) was detected between S. maderensis and S. notata. High levels of nucleotide divergence were detected between species of two families, and the maximum value was found to be 14.5% between H. dactylopterus and S. elongata. The two phylogenetic methods (NJ and MP) identified two major lineages. In the NJ tree S. elongata was the sister group to S. scrofa. S. maderensis was more divergent from these groups. Another lineage contained S. porcus and S. notata. The topology of the MP tree is similar to that of the NJ tree. The pattern and degree of morphological differentiation was not congruent with the genetic differentiation. The Euclidiean distances of morphological data revealed very high morphological divergence between the two families. The highest morphological divergence was observed between H. dactylopterus and S. porcus, and the lowest was detected between S. elongata and S. notata. The present genetic and morphological data support the present monophyletic status of the Scorpaena genus.
