Assessing the spatial distribution of five non-commercial fish species in the Aegean Sea (Greece, eastern Mediterranean Sea) based on discards data

2021 ◽  
Vol 44 ◽  
pp. 101736
Author(s):  
Smaragda Despoti ◽  
Konstantinos I. Stergiou ◽  
Athanassios Machias ◽  
Vassiliki Vassilopoulou ◽  
Konstantinos Tsagarakis ◽  
...  
2012 ◽  
Vol 13 (1) ◽  
pp. 12 ◽  
Author(s):  
H. EL LAKHRACH ◽  
A. HATTOUR ◽  
O. JARBOUI ◽  
K. ELHASNI ◽  
A.A. RAMOS-ESPLA

The aim of this paper is to bring to light the knowledge of marine diversity of invertebrates in Gabes gulf. The spatial distribution of the megabenthic fauna community in Gabes gulf (Tunisia, Eastern Mediterranean Sea), together with the bottom type and vegetation cover, were studied. The abundance of the megabenthic fauna was represented by eight groups: Echinodermata (38%), Crustacea (21%), Tunicata (19%), Mollusca (13%), Porifera (4%), Cnidaria (3%), Bryozoa, and Annelida (2%). It was spatially more concentrated in the coast area of the gulf than in the offshore waters. This area, especially, in Southern Kerkennah, North-est of Gabes and North-east of Djerba appeared to be in a good ecological condition  hosting a variety of species like the paguridsPaguristes eremita and Pagurus cuanensis, the brachyura Medorippe lanata, Inachus doresttensis, the Gastropoda Hexaplex trunculus, Bolinus brandaris, Aporrhais pespelecani, andErosaria turdus, the Bivalvia Fulvia fragilis, the Echinoidea Psammechinus microtuberculatus, Holothuria polii,Ophiothrix fragilis and Antedon mediterranea, and the AscidiaceaAplidium cf. conicum, Didemnum spp, and Microcosmus exasperatus.The species’ compositions of the megabentic fauna community showed clearly that the spatial analysis represented the differences between the community of these two regions (inshore waters and offshore waters). These differences were closely related to peculiar characters of the fauna and biotopes (depth, bottom type and vegetation cover community). The results of the present study should be considered as a necessary starting point for a further analysis of priceless benthic fauna contribution to the marine environment and its organisms.


Crustaceana ◽  
2019 ◽  
Vol 92 (11-12) ◽  
pp. 1403-1414
Author(s):  
Ozge Ozgen ◽  
Sermin Acik ◽  
Kerem Bakir

Abstract This paper deals with six crustacean species associated with Posidonia oceanica (Linnaeus) Delile, 1813 meadows along the Aegean coasts of Turkey: Caprella tavolarensis, Eriopisella ruffoi, Iphimedia vicina, Astacilla mediterranea, Apseudopsis minimus and Macropodia deflexa. Apseudopsis minimus is a new record for the Turkish coast of the Aegean Sea, the other five species are new records for the eastern Mediterranean. Brief descriptions of the species and their morphological and ecological characteristics are given.


2019 ◽  
Vol 13 (1) ◽  
pp. 10-14
Author(s):  
MARIA CORSINI-FOKA ◽  
GERASIMOS KONDYLATOS ◽  
IOANNA KATSOGIANNOU ◽  
KONSTANTINOS GRITZALIS ◽  
GIANNI INSACCO

The finding in 2017 of a female of Lethocerus patruelis, a species rarely collected in the Aegean Islands, is documented from Rhodes (Greece), more than 160 years after its first record in the same island. The general distribution of the giant water bug and its occurrence in the area are briefly discussed.Keywords: Belostomatidae, giant water bug, Lethocerus patruelis, Aegean Sea, Rhodes, Greece


2019 ◽  
Vol 30 ◽  
pp. 100739
Author(s):  
Leila Bordbar ◽  
Kostas Kapiris ◽  
Aikaterini Anastasopoulou ◽  
Christos D. Maravelias ◽  
Christopher J. Smith ◽  
...  

2019 ◽  
Vol 60 (1) ◽  
pp. 47-51 ◽  
Author(s):  
Cengiz Kocak

Sampling studies in the Turkish Aegean Sea revealed the occurrence of the sea spider species, Trygaeus communis Dohrn, 1881. The genus Trygaeus and species Trygaeus communis Dohrn, 1881 are recorded for the first time from Turkey. The genus and species are also recorded for the second time from the Eastern Mediterranean Sea. Distribution map of the species in the Eastern Mediterranean Sea is provided, together with photographs and line drawing of the species. This record further extends the known distribution of the species to Turkey in the Eastern Mediterranean.


Zootaxa ◽  
2008 ◽  
Vol 1686 (1) ◽  
pp. 57 ◽  
Author(s):  
FRANZ KRAPP ◽  
CENGIZ KOCAK ◽  
TUNCER KATAGAN

Material of Pycnogonida was collected by scuba diving and snorkelling in the eastern Mediterranean Sea from the Aegean Sea to northern Cyprus in 1995–2002; some additional samples were taken in 2006 (mainly in Gencelli Cove, Turkey). This yielded the first record of Ammothella appendiculata for the region. A. longioculata and Callipallene spectrum are newly recorded for Turkey. A hitherto undescribed and tiny species of Anoplodactylus was found. The insufficiently known adult stage of Ammothella uniunguiculata is figured by SEM photograph.


2020 ◽  
Vol 94 ◽  
pp. 156-173
Author(s):  
Sarah Beuscher ◽  
Werner Ehrmann ◽  
Stefan Krüger ◽  
Gerhard Schmiedl

AbstractEndmember modelling on the terrigenous silt fraction of nine marine sediment cores spanning up to 180,000 years reveals the influx of North African dust into the Eastern Mediterranean Sea. The dust grain size modes decrease with transport distance, from >50 µm off the African coast to ca. 30 µm in the Aegean Sea. The dust signal is strongly influenced by hydrological changes in northern Africa. Changes from arid to humid periods are documented in the grain size data of all cores. The climatic signal gets weaker with growing distance from the source and close to large fluvial sediment sources such as the Nile. Frequency and wavelet analyses show a strong orbital precession signal that is known to trigger the migration of the monsoonal rain belt in northern Africa. The influence of climate changes on suborbital time scales on dust influx is less distinct, but Dansgaard-Oeschger interstadials and Heinrich-like events are documented in some cores. In the sediment core closest to the source, three endmembers represent one or more dust sources in northern Africa. With growing distance from the source, the three modes cannot be separated anymore and appear as one multimodal dust endmember.


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