In this paper, center coloring and center coloring number are defined, some bounds are established for the center coloring number of a graph in terms of other graphical coloring parameters, and a polynomial time algorithm is proposed in order to calculate the center coloring of a graph.
European eels (Anguilla anguilla L.) has a great dispersion from Sargasso Sea to across the Europe and North Africa. Their population have decreased dramatically over the years and listed in IUCN as critically endangered. Stock estimation is one of the important issues in order to sustainable management of this species. Last decades, researchers have focused various studies which...
In this study, construction of amperometric glucose biosensor was carried out by immobilizing of glucose oxidase (GOD) on platinum electrode with 0.09 cm2 surface area which coated with polypyrrole (PPy) by cyclic voltammetry technique. Because measured current values in the presence of glucose would be affected from the electrode preparing and working conditions, experimental...
Two female and one male specimens of the Seychelles dragonet, Synchiropus sechellensis were caught by a commercial trawl at a depths of about 55-65 m on 04 November 2017 from the Aydıncık coast, Turkey. The present paper reports the second record of S. sechellensis in the southeastern coast of Turkey. Morphometric and meristic characters of the the specimens are given with some...
In this study, heavy metal levels in muscle and liver tissues of different age groups of Lagocephalus sceleratus caught in the Mersin Bay were investigated. Six different age groups were determined among fishes caught using commercial trawlers from the Mersin Bay. The lengths of fish were measured between 17 cm and 68 cm, the weights were measured between 265 g and 3955 g...
In the present study, bluefish, Pomatomus saltatrix, was monthly collected from commercial fishing boats operating in the Marmara Sea between January and December 2014. The relationship between total length and otolith size of 346 bluefish samples were examined. Total lengths of females, males and unidentified samples were ranged from between 13.2-37.0, 12.3-34.8 and 13.0-31.6 cm...
European eels (Anguilla anguilla L.) has a great dispersion from Sargasso Sea to across the Europe and North Africa. Their population have decreased dramatically over the years and listed in IUCN as critically endangered. Stock estimation is one of the important issues in order to sustainable management of this species. Last decades, researchers have focused various studies which...
In this study, construction of amperometric glucose biosensor was carried out by immobilizing of glucose oxidase (GOD) on platinum electrode with 0.09 cm2 surface area which coated with polypyrrole (PPy) by cyclic voltammetry technique. Because measured current values in the presence of glucose would be affected from the electrode preparing and working conditions, experimental...
Two female and one male specimens of the Seychelles dragonet, Synchiropus sechellensis were caught by a commercial trawl at a depths of about 55-65 m on 04 November 2017 from the Aydıncık coast, Turkey. The present paper reports the second record of S. sechellensis in the southeastern coast of Turkey. Morphometric and meristic characters of the the specimens are given with some...
In this study, heavy metal levels in muscle and liver tissues of different age groups of Lagocephalus sceleratus caught in the Mersin Bay were investigated. Six different age groups were determined among fishes caught using commercial trawlers from the Mersin Bay. The lengths of fish were measured between 17 cm and 68 cm, the weights were measured between 265 g and 3955 g...
In this paper, center coloring and center coloring number are defined, some bounds are established for the center coloring number of a graph in terms of other graphical coloring parameters, and a polynomial time algorithm is proposed in order to calculate the center coloring of a graph.
European eels (Anguilla anguilla L.) has a great dispersion from Sargasso Sea to across the Europe and North Africa. Their population have decreased dramatically over the years and listed in IUCN as critically endangered. Stock estimation is one of the important issues in order to sustainable management of this species. Last decades, researchers have focused various studies which...
In this study, construction of amperometric glucose biosensor was carried out by immobilizing of glucose oxidase (GOD) on platinum electrode with 0.09 cm2 surface area which coated with polypyrrole (PPy) by cyclic voltammetry technique. Because measured current values in the presence of glucose would be affected from the electrode preparing and working conditions, experimental...
In Turkish marine waters, pufferfish belongs to Tetraondontidae family are represented with 8 species, Lagocephalus lagocephalus, L. sceleratus, L. spadiceus, L. suezensis, L. guentheri, Sphoeroides pachygaster, Torquigener flavimaculosus and Tylerius spinosissimus. DNA barcoding can be useful in the assessment of cryptic or morphologically similar species of identification which...
Lagocephalus sceleratus is widely distributed in the tropical Indo-West Pacific Ocean as well as the Red Sea, and more recently in the eastern basin of the Mediterranean Sea. L. sceleratus in the Mediterranean has been first recorded from Gökova Bay, southern Aegean Sea in 2003. Since then, this fish invaded rapidly whole Levantine basin, especially western and southern Anatolian...
In this study, length-weight relationships were given belonging to Tetraodontidae family: Lagocephalus sceleratus (Gmelin, 1789), Lagocephalus spadiceus (Richardson, 1845), Lagocephalus suezensis Clark & Gohar, 1953 and Torquigener flavimaculosus Hardy & Randall, 1983. Specimens were collected via different fishing activities (e.g. longline, trammel net, bottomtrawl) from Muğla...
The Aquatic Species Invasiveness Screening Kit (AS-ISK) has been used in order to exhibit the factors increasing the invasiveness of Pufferfishes on the Muğla coast. Basic Risk Assessment (BRA) scores were calculated as 28.0 (Lagocephalus guentheri), 31.0 (Torguigener flavimaculasus), 33.0 (Lagocephalus suezensis), 38.0 (Lagocephalus spadiceus) and 40.0 (Lagocephalus sceleratus...
In the present study, the heavy metal concentration (Cd, Cu, Pb, Ag, Co, Cr, Fe, Mn, Ni & Zn) in skin and muscle were studied in silver-cheeked toadfish Lagocephalus sceleratus collected from Antalya Bay. The heavy metals concentration ranges in muscle tissue were Cu (0.276-0.518 μg/g); Fe (5.996-21.367 μg/g); Mn (0.601-2.633 μg/g); Zn (51.472-86.635 μg/g); Cd (0.045-0.139 μg/g...
Marine pufferfish of the family Tetraodontidae accumulate the highest levels of tetrodotoxin (TTX) in the ovary. The level of TTX accumulation is reported to differ between males and females and fluctuate through gonadal development and maturation stages. Therefore, in the present work, maturation and gonad development of Yellowspotted Puffer (Torquigener flavimaculosus) from...
In Turkish marine waters, pufferfish belongs to Tetraondontidae family are represented with 8 species, Lagocephalus lagocephalus, L. sceleratus, L. spadiceus, L. suezensis, L. guentheri, Sphoeroides pachygaster, Torquigener flavimaculosus and Tylerius spinosissimus. DNA barcoding can be useful in the assessment of cryptic or morphologically similar species of identification which...
Lagocephalus sceleratus is widely distributed in the tropical Indo-West Pacific Ocean as well as the Red Sea, and more recently in the eastern basin of the Mediterranean Sea. L. sceleratus in the Mediterranean has been first recorded from Gökova Bay, southern Aegean Sea in 2003. Since then, this fish invaded rapidly whole Levantine basin, especially western and southern Anatolian...
In this study, length-weight relationships were given belonging to Tetraodontidae family: Lagocephalus sceleratus (Gmelin, 1789), Lagocephalus spadiceus (Richardson, 1845), Lagocephalus suezensis Clark & Gohar, 1953 and Torquigener flavimaculosus Hardy & Randall, 1983. Specimens were collected via different fishing activities (e.g. longline, trammel net, bottomtrawl) from Muğla...
In this study, alcian blue staining technique was used to enhance the visibility of the band on vertebrae of Lagocephalus sceleratus from Mersin Bay, Turkey, Northeastern Mediterranean. A total of 77 L. sceleratus samples were captured by commercial purse seine nets at depths between 24 and 50 m from Mersin Bay (Turkey). The total length ranged from 8.9 to 78.4 cm and body weight...
The Aquatic Species Invasiveness Screening Kit (AS-ISK) has been used in order to exhibit the factors increasing the invasiveness of Pufferfishes on the Muğla coast. Basic Risk Assessment (BRA) scores were calculated as 28.0 (Lagocephalus guentheri), 31.0 (Torguigener flavimaculasus), 33.0 (Lagocephalus suezensis), 38.0 (Lagocephalus spadiceus) and 40.0 (Lagocephalus sceleratus...
In the present study, the heavy metal concentration (Cd, Cu, Pb, Ag, Co, Cr, Fe, Mn, Ni & Zn) in skin and muscle were studied in silver-cheeked toadfish Lagocephalus sceleratus collected from Antalya Bay. The heavy metals concentration ranges in muscle tissue were Cu (0.276-0.518 μg/g); Fe (5.996-21.367 μg/g); Mn (0.601-2.633 μg/g); Zn (51.472-86.635 μg/g); Cd (0.045-0.139 μg/g...