Catch composition and some other aspects of bottom trawl fishery in Sığacık Bay, central Aegean Sea, eastern Mediterranean

2016 ◽  
Vol 32 (3) ◽  
pp. 542-547 ◽  
Author(s):  
O. Soykan ◽  
Ş. A. Akgül ◽  
H. T. Kınacıgil
Keyword(s):  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Bottom Trawl ◽  
Trawl Fishery ◽  
Catch Composition

scholarly journals Preliminary evaluation of landings and discards of the Turkish bottom trawl fishery in the northeastern Aegean Sea (eastern Mediterranean)

2014 ◽  
Vol 78 (2) ◽  
pp. 213-225 ◽  
Author(s):  
Çetin Keskin ◽  
Francesc Ordines ◽  
Celal Ates ◽  
Joan Moranta ◽  
Enric Massutí
Keyword(s):  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Bottom Trawl ◽  
Preliminary Evaluation ◽  
Trawl Fishery

Alien and native fish in gill nets at Rhodes, eastern Mediterranean (2014–2015)

2017 ◽  
Vol 97 (3) ◽  
pp. 635-642 ◽  
Author(s):  
Maria Corsini-Foka ◽  
Stefanos Mastis ◽  
Gerasimos Kondylatos ◽  
Ioannis E. Batjakas
Keyword(s):  
Native Species ◽  
Fish Assemblages ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Total Biomass ◽  
Coastal Fish ◽  
Gill Net ◽  
Fish Catch ◽  
Siganus Rivulatus ◽  
Catch Composition

Fish catch composition in 21 gill net samplings performed between 2014 and 2015 at Rhodes Island (Aegean Sea, Greece) was analysed, with the aim to contribute in filling scattered information on coastal fish assemblages in a Mediterranean region heavily impacted by biological invasions. A total biomass of 183 kg was collected comprising 1070 fish individuals, distributed along 43 native and six Lessepsian migrant species. The alien Siganus luridus prevailed in terms of frequency of occurrence, followed by the native Sparisoma cretense, which exhibited the higher abundance and biomass, followed by S. luridus, Scorpaena scrofa and Siganus rivulatus. Ratios between alien and native species as well as between their abundance and biomass are discussed.

scholarly journals Age and growth of four-spotted megrim (Lepidorhombus boscii Risso, 1810) from Saros Bay (Northern Aegean Sea, Turkey)

2013 ◽  
Vol 14 (1) ◽  
pp. 36 ◽  
Author(s):  
O. CENGIZ ◽  
U. OZEKINCI ◽  
A. ISMEN ◽  
A. OZTEKIN
Keyword(s):  
Sex Ratio ◽  
Growth Performance ◽  
Performance Index ◽  
Growth Parameters ◽  
Aegean Sea ◽  
Bottom Trawl ◽  
Age And Growth ◽  
Trawl Fishery ◽  
Northern Aegean Sea

In this study, the growth parameters of the four-spotted megrim, (Lepidorhombus boscii Risso, 1810), were studied in Saros Bay, which had been closed to bottom trawl fishery since 2000. The sex ratio of females to males was 1:0.42. Length-weight relationships were W=0.0032L3.31 and W=0.0069L3.04 for females and males, respectively. Growth parameters of the populations were L∞=49.8 cm, k=0.09 year-1, t0=-2.15 year for females; L∞=39.1 cm, k=0.11 year-1, t0=-2.59 year for males. The growth performance index (Φ’) was found to be 2.35 and 2.23 for females and males, respectively.

scholarly journals Assessment of goatfish fisheries in Turkey based on the microdata set of official landing statistics

2021 ◽  
Vol 38 (3) ◽  
pp. 303-309
Author(s):  
Nuray Çelik Mavruk ◽  
Sinan Mavruk ◽  
Dursun Avşar
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Large Scale ◽  
Aegean Sea ◽  
Bottom Trawl ◽  
The Black Sea ◽  
Marmara Sea ◽  
Trawl Fishery ◽  
Red Mullet ◽  
The Mediterranean

Although goatfishes (Mullidae Rafinesque, 1815) are among the most important commercial fishes in Turkey, no research has been found investigating the characteristics and spatial patterns of goatfish fishery. Here, we assessed the goatfish fishery of Turkey based on the microdata set of Turkish National Fishery Statistics gathered by Turkish Statistical Institute (TÜİK) between 2014 and 2017. In this context, we investigated the variation of total goatfish catch by cities. In addition, we compared the contribution of small (boat <10m) and large scale (boat >10m) fishers as well as different fishing techniques to the total goatfish catch in Turkey. Finally, an evaluation was made on the discard rates recorded in the official landing statistics. The results showed that higher red mullet (Mullus barbatus Linnaeus, 1758) catch was reported in the eastern Mediterranean, whereas surmullet (Mullus surmuletus Linnaeus, 1758) catch was significantly higher in the western Black Sea. On the other hand, fishery-independent investigations revealed that the Turkish fishery fleet mostly catches red mullet throughout the coasts of Turkey. Therefore, the separate records of red mullet and surmullet in the landing statistics likely represent the local names of red mullet rather than two different species. Large scale fishers were the main source of fishery pressure in the Mediterranean Sea, the Aegean Sea and the Black Sea. However, the majority of the catch was landed by small scale fishers in the Marmara Sea. The bottom trawl fishery landed 88, 92 and 87% of total goatfish catch in the Black Sea, the Aegean Sea and the Mediterranean Sea, respectively. Purse seiners provided the largest part of total goatfish catch (40%) in the Marmara Sea, where the bottom trawl fishery is prohibited. The overall average for the discard rate was found to be 0.47%. There were no statistically significant differences among the discard rates of two species, marine regions or fishing methods.

Discards in bottom trawl fishery in the Aegean Sea (Izmir Bay, Turkey)

2013 ◽  
Vol 29 (6) ◽  
pp. 1269-1274 ◽  
Author(s):  
R. Gurbet ◽  
O. Akyol ◽  
E. Yalçın ◽  
O. Özaydın
Keyword(s):  
Aegean Sea ◽  
Bottom Trawl ◽  
Izmir Bay ◽  
Trawl Fishery

The effect of bottom trawl fishery on biomass variations of demersal chondrichthyes in the eastern Mediterranean

2020 ◽  
Vol 221 ◽  
pp. 105367 ◽  
Author(s):  
Panagiota Peristeraki ◽  
George Tserpes ◽  
Stefanos Kavadas ◽  
Argyris Kallianiotis ◽  
Kostantinos I. Stergiou
Keyword(s):  
Eastern Mediterranean ◽  
Bottom Trawl ◽  
Trawl Fishery

scholarly journals Barotrauma treatment performance of fish release devices and its effects on fishing operations

2019 ◽  
Vol 36 (2) ◽  
pp. 145-154
Author(s):  
Aydın Demirci ◽  
Ozan Bayraktar
Keyword(s):  
Eastern Mediterranean ◽  
Bottom Trawl ◽  
Trawl Fishery ◽  
Treatment Performance ◽  
Trawl Fishing ◽  
Study Results ◽  
Iskenderun Bay ◽  
Release Devices

The aim of this study is to analyze the barotrauma treatment performance of different fish release devices and its effects on different fishing operations. Experiments were carried out between September 2017 and April 2018 in the Iskenderun Bay, located in the Eastern Mediterranean. Fishing Release Hook (FRH), Fish Release Clamp (FRC) and Fish Release Basket (FRB) were tested in three different fishing activities, which are longline, hand line and bottom trawl fishery, respectively for Epinephelus aeneus, Epinephelus costae and Nemipterus randalli. They were released into the sea after fishing operations. Study results showed that fish release devices were very effective for barotrauma treatment. The use of FRB is suitable for bottom trawl fishing, while the use of FRH and FRC is more ergonomic in longline and hand line fishery.

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