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    Aspects of decapod crustacean assemblages from soft bottoms submitted to strong hydrodynamic conditions: An example from Canakkale Strait (Turkish Strait System)
    (2011) Aslan-Cihangir, Herdem; Pancucci-Papadopoulou, Maria Antonietta
    This study deals with the structure of decapod crustacean assemblages and their relationships with biotic and abiotic conditions in Canakkale Strait in 2006 and 2007. A total of 45 Decapod species were found, of which one species (Calliax lobato) is recorded for the first time from Turkish waters, four species are new for the Turkish Strait System and 11 species for the Canakkale Strait. Number of species, abundance, richness and biodiversity were negatively correlated to sand percentage and positively correlated to TOC values. In addition, ABC analysis showed that Canakkale Strait is subjected to natural stress. Hydrodynamic conditions have been recognised as the most important natural stress factor. While seasonal changes were not statistically significant, differences in biomass and species number were statistically important among stations, clearly separating eastern from western costs. Spring could be considered as decapods reproductive period in Canakkale Strait. Four different feeding types were distinguished, carnivors being the dominant one in the area. Athanas nitescens and Pisidia blutelii were the most important species, representing 62.6% of the total abundance. These dominant species were significantly correlated with different sediment variables (percentage of sand, medium gravel and fine gravel). Different feeding mode and niche partitioning are advantageous for survival in such a harsh environment. No alien decapods were found in the study area, but during warm seasons, the presence of the invasive macroalga Caulerpa racemosa in the southeastern part of Canakkale Strait could favour some scavenger decapod species. © by PSP.
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    ASPECTS OF DECAPOD CRUSTACEAN ASSEMBLAGES FROM SOFT BOTTOMS SUBMITTED TO STRONG HYDRODYNAMIC CONDITIONS: AN EXAMPLE FROM CANAKKALE STRAIT (TURKISH STRAIT SYSTEM)
    (Parlar Scientific Publications (P S P), 2011) Aslan-Cihangir, Herdem; Pancucci-Papadopoulou, Maria Antonietta
    This study deals with the structure of decapod crustacean assemblages and their relationships with biotic and abiotic conditions in Canakkale Strait in 2006 and 2007. A total of 45 Decapod species were found, of which one species (Calliax lobata) is recorded for the first time from Turkish waters, four species are new for the Turkish Strait System and 11 species for the Canakkale Strait. Number of species, abundance, richness and biodiversity were negatively correlated to sand percentage and positively correlated to TOC values. In addition, ABC analysis showed that Canakkale Strait is subjected to natural stress. Hydrodynamic conditions have been recognised as the most important natural stress factor. While seasonal changes were not statistically significant, differences in biomass and species number were statistically important among stations, clearly separating eastern from western costs. Spring could be considered as decapods reproductive period in Canakkale Strait. Four different feeding types were distinguished, carnivors being the dominant one in the area. Athanas nitescens and Pisidia blutelii were the most important species, representing 62.6 % of the total abundance. These dominant species were significantly correlated with different sediment variables (percentage of sand, medium gravel and fine gravel). Different feeding mode and niche partitioning are advantageous for survival in such a harsh environment. No alien decapods were found in the study area, but during warm seasons, the presence of the invasive macroalga Caulerpa racemosa in the southeastern part of Canakkale Strait could favour some scavenger decapod species.
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    NEW RECORDS OF TWO SPECIES OF AMPHIPODS, MELPHIDIPPELLA MACRA (NORMAN, 1869) AND MONOCOROPHIUM SEXTONAE (CRAWFORD, 1937) FOR TURKISH SEAS
    (Brill Academic Publishers, 2009) Aslan-Cihangir, Herdem; Sezgin, Murat; Tuncer, Sezginer
    [Anstract Not Available]
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    Seasonal Variations and Structure of the Molluscan Assemblage in the Canakkale Strait (Turkey)
    (Inst Zoology, Bas, 2013) Aslan-Cihangir, Herdem; Ovalis, Panayotis
    The molluscan assemblage of the Canakkale Strait (Turkish Strait System) was studied at depths ranging from 10 to 22 m, by means of the van Veen grab seasonally during 2006 and also at 7 stations, that are located in the middle part of the Canakkale Strait, at depths ranging from 40 to 83 m by means of box-core, van Veen grab and dredge during the summer of 2007. A total of 283 species were found in the strait. Krachia cylindrata (Jeffieys, 1885) was newly recorded in the East of the Mediterranean Sea and a total of 5 species [Cerithiopsis scalaris (Locard, 1892), Melanella monterosatoi (Monterosato, 1890), Bela fuscata (Deshayes, 1835), Mangelia melitensis Cachia and Mifsud, 2008 and Cylichnina laevisculpta (Granata-Grillo, 1877)] were newly recorded in the Turkish Seas. Furthermore, 37 mollusc species were newly recorded in the Turkish Strait System and 140 more species were recorded for the first time from the Canakkale Strait. Bittium reticulatum (da Costa, 1778) and Mytilus galloprovincialis Lamarck, 1819, were the most important species, representing 52% of the total 37024 specimens. No seasonal differences were found, while hydrodynamic conditions seem to be the factor controlling Mollusca recruitment in the Canakkale Strait.
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    The Echinoderm Fauna of Gokceada Island (NE Aegean Sea)
    (Medwell Online, 2012) Aslan-Cihangir, Herdem
    The Echinoderm fauna of Gokceada island (NE Aegean sea) was studied in 2011 from 22 stations at depths ranging from 0.5-45 m by means of bottom trawling and snorkeling. Additionally, temperature, salinity, dissolved oxygen, pH, TDS and conductivity of water were measured on board. A total of 626 specimens belonging to 25 species (7 Asteroidea and Echinoidea, 6 Ophiroidea, 4 Holothoridea and 1 Crinoidea) were identified. The dominant species was the echinoid Psammechinus microtuberculatus (Blainville, 1825). According to the result of cluster analysis based on the precence/absence of Echinoderm species, Gokceada island had a species composition similar to that of Bozcaada island while both islands were different from the Canalckale strait. However, ANOSIM they were not found to be statistically different (p = 0.3).