Dilruba Seyhan ÖztürkIzmir Kâtip Çelebi University · Faculty of Fisheries
Dilruba Seyhan Öztürk
PhD
About
31
Publications
12,118
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Citations
Introduction
Dilruba Seyhan Öztürk currently works as an Assistant Professor at the Faculty of Fisheries, Izmir Katip Celebi University, and interested in Gobiid fishes.
Additional affiliations
January 2020 - present
January 2017 - November 2019
September 2013 - November 2019
Publications
Publications (31)
Morphology of short-beaked garfish populations
Garfish Belone belone (Linnaeus, 1761) are distributed over a wide area covering all the East Atlantic coasts including the North and Baltic Seas and the entire Mediterranean basin. Researchers have presented different opinions regarding the presence of subspecies and endemic species of garfish due to certain morphological variations found in Medit...
In this study length-weigth relationships and and growth parameters of Boops boops (Linneaus, 1756) sampled from Didim coasts, South-eastern Aegean Sea were investigated. A total of 361 specimens (226 females and 135 males) were sampled. The mean length and weights were 18.57 ± 2.46 cm and 60.74 ± 23.60 g for females and 17.63 ± 3.63 cm and 60.50 ±...
Knipowitschia is a sand-goby genus historically comprising 17 species. The congeneric Knipowitschia species show discordance between morphology and genetics in two ways: the morphologically similar species that are clearly distinct by genetics and the morphologically and ecologically distinct populations that are similar by genetics. A sample of Kn...
There are two species of garfish belonging to the genus Belone (garfish B. belone and short-beaked garfish B. svetovidovi) in the coastal regions of Türkiye. It is known that Belone belone is distributed all around the Turkish coasts, and Belone svetovidovi is distributed only in the Mediterranean and Aegean coasts of Türkiye. These species’ morpho...
The smallest fish of the Mediterranean Sea, pygmaean goby, Pomatoschistus nanus, and
Massuti’s goby, Buenia massutii, were obtained from new locations. While P. nanus specimens
were collected from both the north-eastern and south-eastern Aegean Sea, B. massutii specimens
were collected from two different sub-basins, Sea of Marmara and the Aegean Se...
Bogue Boops boops (Linnaeus, 1758) is a valuable semi-pelagic species belonging to the
Sparidae family distributed all over the Eastern Atlantic coasts from Norway to Angola and all the coasts of the Mediterranean. Since this species can be caught with almost all fishing gear, both between target species and by-catch in the fishing areas where it i...
An Indian Ocean goby, Oxyurichtys keiensis (Smith, 1938), is recorded from the northern Levantine coast of Turkey. The identification of Oxyurichtys keiensis was carried out using morphological characters and DNA barcoding data. This species is distinguished from only lessepsian congeneric, in the Mediterranean Sea, Oxyurichtys petersii, by sensory...
The demographic histories, genetic relationships and population structure of sedentary fish Pomatoschistus marmoratus (Risso, 1810), which was sampled from the north-eastern basin of the Mediterranean Sea (including the Turkish coasts of the Black Sea, Aegean Sea, Levantine Sea and Sea of Marmara), were investigated by mitochondrial cytochrome c ox...
The present paper reports the second record of a Lessepsian migrant, Acanthopagrus bifasciatus (Forsskål, 1775), in the Mediterranean Sea and first record from the Aegean Sea. The species is distinguished by the counts of 5½ scale rows between the fifth dorsal-fin spine and lateral line, dorsal and caudal fins yellow, without a dense black margin o...
Minor morphological differences between the Atlantic and Mediterranean populations of Pomatoschistus pictus (Malm, 1865) resulted in the description of two subspecies of this species by Miller (1973): Pomatoschistus pictus pictus and P. p. adriaticus. However, the similarity of morphometric and meristic characteristics led to an ambiguity about the...
The new sand goby species Pomatoschistus nanus (Teleostei: Gobiidae) is described from the northern coast of the Levantine Sea (eastern Mediterranean Sea) based on both morphological and DNA barcoding data. The new species is the smallest fish in the Mediterranean Sea and may be distinguished from congeners by the following features: predorsal area...
Distribution and Some Ecological Features of the Bath’s goby
A new Lessepsian migrant, Diplogrammus randalli Fricke 1983, is recorded for the first time from the Mediterranean Sea. This species is easily distinguished from other Mediterranean callionymid fishes by its ventrolateral fold skin below the lateral line and its preopercular spine shape.
In this study gobiid fish species were investigated at 31 stations from the northeastern Aegean Sea. Different habitat types between 0 and 50 m depth were studied by scuba diving with newly modified underwater visual census with ranked prevalence using time-transect. Thirty-three species were determined as belonging to family Gobiidae. Distribution...
Aim of the study: It is aimed to reveal the actual status of drogonet Synchiropus sechellensis which is recently reported from the Mediterranean in 2014. Material and Methods: Samplings were carried out seasonally during 2014-2015 in Taşucu-mersin with trawl net in order to determine distribution of the lessepsian fishes. Totally 32 hauls were done...
Aim of the study: It is aimed to determine the actual distribution, threats, habitat preferences of the Coryphoblennius galerita which is known from only one location in Southern Black Sea. Material and Methods: The fieldworks were carried out in the Southern coasts of Black Sea (İğneada-Hopa). Total 61 stations were studied by SCUBA diving. The un...
Aim of the study: In this study it is aimed to determine, habitat preferences, environmental threats and distribution of the Black Sea endemic cling fish Diplecogaster euxinica in the southern coast of Black Sea. Material and Methods: The fieldworks were carried out along the Southern coast of Black sea (İğneada- Hopa). Totally 61 stations in the r...
In order to obtain barcods of nine Scombrid species (Thunnus alalunga, Thunnus thynnus, Euthynnus alletteratus, Auxis rochei, Katsuwonus pelamis, Sarda sarda, Scomber colias, Scomber scombrus, Scomberomorus commerson), occurring in the Turkish Seas, mitochondrial DNA Cytochrome Oxidase subunit I (COI) gene was sequenced. COI contained 177 variable...
In this study, new occurrence of two cryptobenthic goby species belonging to genus Chromogobius in the Sea of Marmara and Turkish coast of the Black Sea are reported. While Chromogobius zebratus (Kolombatovic 1891) is a new record for the Sea of Marmara and Turkish coast of the Black Sea, the other species C. quadrivittatus (Steindachner 1863) is t...
In this study the striped seabream Lithognathus mormyrus (Linnaeus, 1758) has been reported for the first time and considered as new geographic record from the northern part of Turkish coasts. The observation points and sampling localities were given with some ecological remarks. The morphological features of this species were examined. The relatio...
Triploid is one of the biotechnology methods in trout culture that uses genetic manipulation which alters chromosome structure during fish breeding. Sterile fish may spend a greater part of the nutrients absorbed on body weight gain and therefore may attain a higher growth rate and a more efficient feed conversion. However, the production needs pro...
Abstract Aequorea globosa Eschscholtz, 1829 is recorded for the first time from the Mediterranean Sea. The presence of this Indo-Pacific jellyfish in the Mediterranean is probably due to ship-mediated transport. A. globosa has been observed in Iskenderun Bay almost all year round from January 2011 until October 2011. This finding suggests that A. g...
Questions
Questions (2)
Can i determine the threshold of interspecific distance according to my own data? I've read lots of publications about DNA barcoding and i know the interspecific distance is almost clear for COI. (for vertabrates, especially fishes). But, what if my interspecific distances are lower than the cited publications? (and i'm definitely sure that i've done species identification correctly). Is that possible and is it a sign of cryptic diversity?
