A5036081106- Fish Biology and Ecology Studies
- Marine and fisheries research
- Aquaculture Nutrition and Growth
- Fish Ecology and Management Studies
- Identification and Quantification in Food
- Marine Bivalve and Aquaculture Studies
- Agricultural and Rural Development Research
- Crustacean biology and ecology
- Ichthyology and Marine Biology
- Meat and Animal Product Quality
- Turtle Biology and Conservation
- Marine Ecology and Invasive Species
- Regional Development and Management Studies
- Dermatoglyphics and Human Traits
- Genetic and phenotypic traits in livestock
- Cephalopods and Marine Biology
- Fisheries and Aquaculture Studies
- Aquatic life and conservation
- Halal products and consumer behavior
- Energy Harvesting in Wireless Networks
- Maritime Navigation and Safety
- Parasite Biology and Host Interactions
- Gender Studies and Social Issues
- Marine animal studies overview
- Tribology and Lubrication Engineering
Ege University
2015-2025
Sivas Cumhuriyet Üniversitesi
2011
Abstract The first record of the abnormalities ankylosis (fusion vertebrae), lordosis (V‐shaped curvature vertebral column), kyphosis (Λ‐shaped curvature), and kypholordosis (the presence both conditions) have been reported in two specimens Sparus aurata collected from Bafa Lake Bodrum‐Kıyıkışlacık Coast, Türkiye used this study. Both displayed a severe level deformity. All cases were non‐fatal as they occurred subadult individuals. Assessment abnormality studied specimen was carried out by...
This research investigated effects of changing the diamond mesh size on codend selectivity in Mediterranean fisheries. The a typical 50-mm knotless polyethylene (PE) used Turkish fishery Aegean Sea was measured for commercially important species, particular hake (Merluccius merluccius), horse mackerel (Trachurus trachurus), anglerfish (Lophius piscatorius) and John Dory (Zeus faber). Fishing trials were carried out commercial trawler 'Hapuloğlu' between 9 12 December 2006 using modified...
Knowledge on selectivity is considered essential for an adequate management of the trawl fishery. This paper compares conventionally used codends 44 mm diamond mesh, 40 square, and hexagonal mesh Atlantic horse mackerel, European hake greater forkbeard in eastern Mediterranean. Data were collected using covered codend method analyzed logistic equation with maximum likelihood method. Mean selection curves compared between-haul variations model. The mean L50values diamond, square are 14.7,...
The aim of this study was to determine the selectivity 40 mm square (40S) and 50 diamond (50D) mesh codend for five species, red mullet ( Mullus barbatus ), annular sea bream Diplodus annularis common Pandora Pagellus erythrinus axillary (Pagellus acarne ) blotched picarel Spicara maena in Eastern Mediterranean. Selectivity data were collected by covered method analyzed. Mean selection curves analyzed compared using between haul variations model bream. Pooled used Pandora, picarel. In total,...
[This study aims to assess the selectivity of square and hexagonal mesh codends for deep water rose shrimp, Parapenaeus longirostris. Experiments were conducted in Kusadasi Bay Sigacik Bay, eastern Aegean Sea, between 30 September 25 October 2007 with a commercial stern trawler. The covered codend technique was used controlling escapees parameters estimated by maximum likelihood over logistic model. individual hauls using software CC2000, whereas mean selection curves Fryer's model, taking...
Context Owing to the use of fyke-nets with poor size selectivity in crayfish fishery, 40.7% landed undersized catch is discarded as bycatch. Aims This study investigated effects using hexagonal mesh (Hex34) instead diamond nets (Com34) traditional fyke-net and application a sorting-grid (SG20, SG25, SG30) stiff-rigged net (SRN34, SRN42, SRN50) on selectivity. Methods A covered codend technique was used for determining codends. Key results The average length at 50% retention probability (L50,...
Abstract Sustainability of natural stocks crayfish is critical because their economic and ecological importance. Crayfish ( Pontastacus leptodactylus ), one the most important species in Turkish inland fisheries, has been facing serious threats recently. One threat faces high landed bycatch undersized selective fishing gear, such as fyke nets. We estimated size‐selectivity sorting grids with various bar spacings for to reduce bycatch. Six (15.0, 17.5, 20.0, 22.5, 25.0, 30.0 mm) were tested...
Sorting grids with two different bar spacings (12 mm and 14 mm) were tested to improve size selectivity of the commercially important fish species, red mullet (Mullus barbatus) annular sea bream (Diplodus annularis), in Turkish bottom trawl fishery. Fishing trials carried out R/V 'Egesüf' between April May 2003 Izmir Bay, Aegean Sea, using a traditional trawl. Selectivity data collected by top cover method analyzed means logistic equation maximum likelihood method. parameters for individual...
Seasonal changes in the selectivity of a 40 mm polyethylene trawl codend for common pandora (Pagellus erythrinus) were tested under similar fishing conditions spring, summer and autumn 2002, winter 2003. Data obtained using covered technique analyzed logistic model fitted with maximum likelihood method. Parameters mean curves each trip estimated by Fryer’s between-haul variation model. To determine seasonal condition fish, samples taken to cover entire length range catch along measurements...
In this study, the selectivity of commercial and alternative (experimental) codends for deep-water rose shrimp, Parapenaeus longirostris , in Aegean Sea demersal trawl fishery was investigated. Tested were 44-mm diamond mesh codend as used fisheries (D44), addition to a 50 mm (D50), 40 square (S40), 90° turned (T40), respectively. trials carried out eastern Sea, with local trawler using modified net 620 meshes circular mouth opening. A total 35 valid daytime hauls (8 D44, 9 D50, 8 S40 10...
This paper compares the selectivity of 44 mm diamond mesh codend used in commercial fisheries (D44) and alternative codends 50 (D50), a 40 square (S40) 90° turned (T40) for red mullet Mullus barbatus, European hake Merluccius merluccius, Morocco dentex Dentex maroccanus, Atlantic horse mackerel Trachurus trachurus Eastern Mediterranean demersal trawl fishery.Sea trials were carried out international waters between Turkey Greece (Aegean Sea), with trawler.Selectivity data collected using...
European pilchard Sardina pilchardus (Walbaum, 1792) is one of the most dominant small pelagic landed by purse seine in Turkey as well Mediterranean. In this study, we aimed to identify relationships between seasonally adjusted CPUE and changes sea surface temperature (SST), fishing area, moon phase, light used fishery understand impact on fishes, especially S. pilchardus, a total 214 operations Izmir Bay, Aegean Sea. The effect parameters Sardine CPUE, expressed terms kg (haul day)–1, was...
This study investigated the selectivity of 90° turned meshes 40 mm mesh size with 165 around codend circumferences (40T1), 44 300 (44T1) and sizes 150 (44T2).Experiments were carried out in Kuşadası Bay Eastern Mediterranean, between 19 January 29 March 2015 commercial stern trawler.Selectivity data collected using covered method analysed by means a logistic equation maximum likelihood method.Individual hauls mean parameter estimated CC2000 EC-Modeller software, respectively.The 50%...
This study investigates the differences in selectivity of commercially used 44 mm mesh size single and double codends for deep-water rose shrimp, Parapenaeus longirostris by using covered codend method. Experiments were conducted on commercial fishing grounds Kusadasi Bay Sigacik eastern Aegean Sea, between 3 27 October 2007. Twenty-four hauls carried out, eleven with thirteen codends. The mean fifty-percent retention length (L 50) values found to be 12.0 ± 0.09 16.9 0.08 mm, respectively....
The narrow-clawed crayfish ( Pontastacus leptodactylus ) is one of the most ecologically and economically important freshwater species in Turkey. However, harvest this has declined from 7937 t 1984 to 696 2019. One primary reasons for decrease stock use fishing gears with poor size selectivity. In study, new codend designs were investigated improve selectivity fyke nets P. . Seven codends three different tested: (1) a commercially used standard 34 mm mesh Com34 ); (2) sorting grids 20 SG20...