Hatice Onay
YOU?
Author Swipe
View article: Snail Shell-Reinforced Waste-Based Polymer Composites for Radiation Shielding and Anti-Reflective Applications
Snail Shell-Reinforced Waste-Based Polymer Composites for Radiation Shielding and Anti-Reflective Applications Open
The increasing demand for sustainable and multifunctional materials in radiation shielding and optical applications has driven research toward utilizing natural and waste-derived reinforcements in polymer matrices. However, achieving effec…
View article: Se–Hg balance and seasonal trends in metal(oid) accumulation in red mullet (Mullus barbatus) from the southeastern Black Sea: Implications for human health
Se–Hg balance and seasonal trends in metal(oid) accumulation in red mullet (Mullus barbatus) from the southeastern Black Sea: Implications for human health Open
This study investigates seasonal variations in metal(oid) concentrations in red mullets from the southeastern Black Sea and evaluates the related health risks from their consumption. Fifteen metal(oid)s were analyzed, and a comprehensive r…
View article: Assessing microplastic pollution in marine mammals: evidence from three cetacean species in the southeastern Black Sea
Assessing microplastic pollution in marine mammals: evidence from three cetacean species in the southeastern Black Sea Open
Microplastic (MP) pollution has emerged as a pervasive environmental threat, with growing evidence of its accumulation across various marine trophic levels, including top predators such as cetaceans. This study investigates MP abundance, s…
View article: Spatio-temporal Variation in the Population Dynamics of Hippocampus guttulatus (Cuvier, 1829) in the Southeast Black Sea
Spatio-temporal Variation in the Population Dynamics of Hippocampus guttulatus (Cuvier, 1829) in the Southeast Black Sea Open
This study presents novel insights into the population dynamics of the long-snouted seahorse ( Hippocampus guttulatus ) along the southeastern coast of the Black Sea. A total of 439 specimens (228 females and 211 males) were collected usin…
View article: Describing biological parameters of several endemic Salmo species from the Caspian Sea and Persian Gulf basins
Describing biological parameters of several endemic Salmo species from the Caspian Sea and Persian Gulf basins Open
Salmonids are a crucial component in aquatic ecosystems due to their trophic roles in nutrient cycling. They are also significant sources of food and salmonid fisheries make important contributions to local economies, while also being of c…
View article: Length–weight relations and condition factors of several endemic and native fish species from Anatolian freshwater
Length–weight relations and condition factors of several endemic and native fish species from Anatolian freshwater Open
This study analyzed the length–weight relations and condition factors of 13 species belonging to three highly endemic genera: Oxynoemacheilus (6), Seminemacheilus (2) and Cobitis (5). Fish were sampled in several streams and lakes using a …
View article: Length–weight relationships and condition factors of several endemic and native species of the genera Alburnoides, Alburnus and Squalius
Length–weight relationships and condition factors of several endemic and native species of the genera Alburnoides, Alburnus and Squalius Open
The present study examined for the first time both length–to–weight relationships and condition factors of ten species belonging to three endemically rich genera: Alburnoides (nspecimens = 361), Alburnus (nspecimens = 36), and Squalius (ns…
View article: Spatio-temporal Distribution and Population Dynamics of the Red Mullet Mullus barbatus Linnaeus, 1758 from the South-east Black Sea
Spatio-temporal Distribution and Population Dynamics of the Red Mullet Mullus barbatus Linnaeus, 1758 from the South-east Black Sea Open
A total of 2930 Mullus barbatus individuals collected from the Southeastern Black Sea coast between March 2017 and April 2018 were investigated regarding growth, mortality rates and the distribution determined by depth and season. M. barba…
View article: First approximation of the growth and the spawning period of Symphodus ocellatus (Linnaeus, 1758) (Pisces: Labridae) in the southeastern Black Sea
First approximation of the growth and the spawning period of Symphodus ocellatus (Linnaeus, 1758) (Pisces: Labridae) in the southeastern Black Sea Open
The aim of this study was to provide a first approximation of the growth, reproduction, and length–weight relationships of Symphodus ocellatus in the southeastern Black Sea, Turkey. A total of 320 specimens (273 males, 47 females) were col…
View article: The relationships between fish size and otolith dimensions between sexes in the Grey Wrasse, Symphodus cinereus (Bonnaterre, 1788)
The relationships between fish size and otolith dimensions between sexes in the Grey Wrasse, Symphodus cinereus (Bonnaterre, 1788) Open
In this study, the morphology of the sagittal otoliths of Symphodus cinereus, which exhibits an alternative reproductive tactic, was compared between the sexes. Fish specimens were collected using trammel net during the period June 2015 an…
View article: Spatial and Temporal Distribution of Liocarcinus depurator (Crustacea: Decapod) Caught by Beam Trawl in the Southeastern Black Sea
Spatial and Temporal Distribution of Liocarcinus depurator (Crustacea: Decapod) Caught by Beam Trawl in the Southeastern Black Sea Open
This study was carried out to determine the temporal and spatial distribution of Liocarcinus depurator (Crustacea: Decapod) caught by beam trawl in the southeast Black Sea between December 2012 and November 2013. Sampling was executed at d…
View article: Güney Doğu Karadeniz’de Beam Trol ile Avlanan Liocarcinus depurator (Crustacea: Decapod: Brachyura)’ün Boya Dayalı Büyümesi
Güney Doğu Karadeniz’de Beam Trol ile Avlanan Liocarcinus depurator (Crustacea: Decapod: Brachyura)’ün Boya Dayalı Büyümesi Open
Bu çalışma Aralık 2012- Kasım 2013 ayları arasında Güney Doğu Karadeniz’de beam trol ile avlanan Liocarcinus depurator (Crustacea: Decapod: Brachyura) türünün mevsimsel ve mevsimsel olmayan büyüme özelliklerini belirlemek amacıyla yürütülm…
View article: Güney Doğu Karadeniz’de Beam Trol ile Avlanan Liocarcinus depurator (Crustacea: Decapod: Brachyura)’ün Üreme Biyolojisi
Güney Doğu Karadeniz’de Beam Trol ile Avlanan Liocarcinus depurator (Crustacea: Decapod: Brachyura)’ün Üreme Biyolojisi Open
Bu çalışma Aralık 2012- Kasım 2013 ayları arasında Güney Doğu Karadeniz’de beam trol ile avlanan Liocarcinus depurator’un (Crustacea: Decapod: Brachyura) üreme özelliklerini belirlemek amacıyla yürütülmüştür. İyidere, Merkez ve Çayeli ista…
View article: Length-Weight Relationships for Fourteen Fish Species Collected by Bottom Trawl From the Eastern Black Sea Coast, Turkey
Length-Weight Relationships for Fourteen Fish Species Collected by Bottom Trawl From the Eastern Black Sea Coast, Turkey Open
Length-weight relationships (LWR) were described for fourteen demersal and pelagic fish species; whiting (Merlangius merlangus), red mullet (Mullus barbatus), picarel (Spicara maena), scorpion fish (Scorpaena porcus), anchovy (Engraulis en…
View article: Length-Weight Relationships of Four Symphodus Species (Pisces: Perciformes) From Eastern Black Sea (Turkey)
Length-Weight Relationships of Four Symphodus Species (Pisces: Perciformes) From Eastern Black Sea (Turkey) Open
This study provides the length-weight relationships of four fish species that belong to the Labridae family from the Rize coast in the south-eastern Black Sea, Turkey; (Symphodus ocellatus (Linnaeus, 1758), Symphodus cinereus (Bonnaterre, …
View article: Determination of Some Biological Characteristics and Population Parameters of the Blotched Picarel (Spicara flexuosa Rafinesque, 1810) Distributed in the Eastern Black Sea (Rize - Hopa)
Determination of Some Biological Characteristics and Population Parameters of the Blotched Picarel (Spicara flexuosa Rafinesque, 1810) Distributed in the Eastern Black Sea (Rize - Hopa) Open
This study was carried out in order to determine some biological characteristics of the fish species of Spicara flexuosa, which is distributed on the Eastern Black Sea coast, and to contribute to the management of the picarel in all the se…
View article: Spawning Period and Size at Maturity of the Thornback Ray, Raja clavata (Linnaeus, 1758), (Elasmobranchii: Rajidae) in the Black Sea
Spawning Period and Size at Maturity of the Thornback Ray, Raja clavata (Linnaeus, 1758), (Elasmobranchii: Rajidae) in the Black Sea Open
To describe the spawning period, size at maturity (Lm), reproductive load (Lm/Lmax), length at maximum yield per recruit (Lopt) of thornback ray (Raja clavata); and to assess the differences in these parameters from other populations, a to…
View article: Reproduction and Seasonal Growth Estimates of the Black Goby, Gobius niger (Osteichthyes: Perciformes: Gobiidae) in the Southeastern Black Sea Region of Turkey
Reproduction and Seasonal Growth Estimates of the Black Goby, Gobius niger (Osteichthyes: Perciformes: Gobiidae) in the Southeastern Black Sea Region of Turkey Open
Seasonal growth pattern and reproductive biology of the black goby, Gobius niger, were studied in southern Black Sea between December 2012 and November 2013. The seasonal von Bertalanffy growth parameters, computed from ELEFAN, were estima…
View article: Weight-Length Relationships (WLRs) of Scaldback, Arnoglossus kessleri Schmidt, 1915 (Pleuronectiformes: Bothidae), Caught by Beam Trawl in the Southeastern Black Sea (Rize, Turkey)
Weight-Length Relationships (WLRs) of Scaldback, Arnoglossus kessleri Schmidt, 1915 (Pleuronectiformes: Bothidae), Caught by Beam Trawl in the Southeastern Black Sea (Rize, Turkey) Open
The Scaldback, Arnoglossus kessleri, is an endemic fish to the Mediterranean and Black seas. The present study was conducted to determine the weight-length relationships (WLRs) of this endemic species caught by beam trawl on the Rize provi…
View article: Spawning Period and Size at Maturity of Scaldback, Arnoglossus kessleri Schmidt, 1915 (Pleuronectiformes: Bothidae), Caught by Beam Trawl in The Black Sea, Turkey
Spawning Period and Size at Maturity of Scaldback, Arnoglossus kessleri Schmidt, 1915 (Pleuronectiformes: Bothidae), Caught by Beam Trawl in The Black Sea, Turkey Open
The scaldback, Arnoglossus kessleri, is a small fish that belongs to the Bothidae family. This species is a demersal fish inhabiting sandy and muddy bottoms where it lives, generally buried in the sand. Even in Turkey, the biology of A. ke…
View article: Güneydoğu Karadeniz'de (Rize kıyıları, Türkiye) Deneysel Krişli Trol ile Örneklenen Yengeç (Crustacea: Decapoda: Brachyura) ve Mollusca (Bivalvia, Gastropoda) Türleri
Güneydoğu Karadeniz'de (Rize kıyıları, Türkiye) Deneysel Krişli Trol ile Örneklenen Yengeç (Crustacea: Decapoda: Brachyura) ve Mollusca (Bivalvia, Gastropoda) Türleri Open
Bu çalışma, Karadeniz'in Türkiye sularında (Rize civarında) bulunan yengeç ve mollusca türlerini belirlemek amacıyla yürütülmüştür. Toplamda 146 örnekleme 15 mm torba ağ gözü açıklığına sahip deneysel krişli trol ile Aralık 2012 ve Kasım 2…
View article: Karadeniz’de Karaya Vuran ve Kazara Yakalanan Yunuslar (Cetacea) Hakkında: Ölüm Nedenleri, Beslenme Özellikleri ve Gebelik Durumu
Karadeniz’de Karaya Vuran ve Kazara Yakalanan Yunuslar (Cetacea) Hakkında: Ölüm Nedenleri, Beslenme Özellikleri ve Gebelik Durumu Open
Bu çalışma, Kalkan dip uzatma solungaç ağlarıyla yapılan avcılıkta Karadeniz’de yaşayan iki yunus türünün (Mutur, Phocoena phocoena ve Tırtak, Delphinus delphis) karaya vuran miktarı ve ölüm nedenleri ile bazı üreme ve beslenme özellikleri…