Molluscs, especially bivalves, play an important role in food production and are the dominant gro... more Molluscs, especially bivalves, play an important role in food production and are the dominant group in mariculture worldwide. They are also an important component of the marine ecosystem, influencing the food web and nutrient cycling, as well as creating and modifying habitats. In the Mediterranean Sea, about 578 non-native species have been reported, including 230 taxa of non-native mollusc species. In most regional European seas, including the Mediterranean, the socioeconomic impacts of high-impact mollusc species have generally been poorly studied, and only a few well-documented cases have been reported. The present study collects scientific information on non-native molluscs in Croatian waters that are classified as high impact according to the European Alien Species Information Network EASIN: one Gastropoda—Rapana venosa—and seven Bivalvia species—Anadara kagoshimensis, Anadara transversa, Arcuatula senhousia, Brachidontes pharaonis, Magallana gigas, Pinctada radiata, and Rudit...
The soft-bottom crustacean fauna from Izmir Bay was studied semi-annually between September 2014 ... more The soft-bottom crustacean fauna from Izmir Bay was studied semi-annually between September 2014 and April 2016. Benthic samples were collected by means of a Van Veen grab, sampling ca. 0.1 m2 area, at 4 stations in the inner (3 stations) and middle (a single station) parts of the bay. Forty-one species and 999 individuals belonging to seven crustacean orders (Sessilia, Mysida, Amphipoda, Cumacea, Tanaidacea, Isopoda, Decapoda) were identified. Amphipoda were represented with the highest number of species (21 species) followed by Isopoda (7) and Decapoda (6). Among the species encountered, Phtisica marina was the most dominant species with an average 90.6 individuals (27.22% of the total number of individuals) while Iphinoe douniae was the most frequent species (occurring in 50% of the samples). Eurycarcinus integrifrons De Man, 1879 is an alien decapod herein reported for the first time from the Aegean Sea.
En Mer Méditerranée, le coralligène et les herbiers de Posidonies, qui sont de loin les plus étud... more En Mer Méditerranée, le coralligène et les herbiers de Posidonies, qui sont de loin les plus étudiés, sont les habitats les plus importants du point de vue biodiversité côtière. Ils sont le milieu principal produisant complexité structurelle et biodiversité. Les récifs coralligènes produisent des biens (ressources alimentaires et matière première, y compris le corail rouge) et des services dans plusieurs domaines (séquestration de CO2 , Plongée loisir...). La pollution, les mouillages et la pêche au chalut peuvent entraîner leur dégradation, tandis que la pêche traditionnelle aussi bien que la pêche à la ligne affecte principalement des espèces cibles. La fréquentation croissante par les plongeurs est une autre cause de dégradation possible. Le coralligène peut également être menacé par des espèces exotiques invasives. Ces habitats qui sont d’une grande importance écologique, socio-économique et patrimoniale sont également soumis aux pressions liées aux changements globaux. Il a été...
Iskenderun Bay (north-west Levantine Sea) is intensely industrialized but it is oil pollution tha... more Iskenderun Bay (north-west Levantine Sea) is intensely industrialized but it is oil pollution that affects most of the coastal and marine ecosystems in the area. Molluscan species diversity in the bay is changing rapidly over the last decades due to the introduction of ...
A specimen of the invasive mytilid mussel Brachidontes pharaonis (Fischer P., 1870) was collected... more A specimen of the invasive mytilid mussel Brachidontes pharaonis (Fischer P., 1870) was collected on 18 April 2007 in Karaburun Peninsula, İzmir. This record represents the northernmost occurrence of the species along the Aegean coast of Turkey. Information on the distribution of the species along the Mediterranean coast of Turkey is provided.
Journal of the Marine Biological Association of the United Kingdom, 2017
The invasive alien mytilid species, Brachidontes pharaonis, forms a biogenic habitat in the medio... more The invasive alien mytilid species, Brachidontes pharaonis, forms a biogenic habitat in the mediolittoral and upper-infralittoral zones of the Levantine Sea, hosting a number of alien and native species. Examinations of samples taken from dense, continuous mussel beds at seven stations along the coast of northern Levantine Sea yielded 187 macro-benthic invertebrate species belonging to 11 taxonomic groups. Polychaeta accounted for 46% and 37% of the total number of species and individuals, respectively. The top three dominant species in the mussel beds were Stenothoe gallensis, Spirobranchus kraussi and Mytilaster minimus. The species with the highest frequency values on the mussel beds were Pseudonereis anomala, Phascolosoma stephensoni and Elasmopus pocillimanus. The highest density and biomass of the associated fauna were estimated as 42,550 ind m−2 and 1503 wwt g m−2, respectively. The species number in samples varied between 14 and 47 species. The environmental variables best e...
Within the frame of surveys conducted in Izmir Bay (Aegean Sea) in November 2008, April 2009 and ... more Within the frame of surveys conducted in Izmir Bay (Aegean Sea) in November 2008, April 2009 and April-May 2012, three mollusc species (Crepidula fornicata, Anadara polii and Arcuatula senhousia) have been recorded. Of the identified species, A. senhousia is new record for the molluscan fauna of the Aegean Sea and the calyptraeid gastropod C. fornicata is new report for the Turkish mollusc fauna. Besides, diagnostic features of A. polii, a rare arcid species, is given based on specimens from Izmir Bay.
The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of represen... more The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of representing less than 1% of the global ocean surface. This regional sea experiences high anthropogenic pressures, such as growing human population density along the coasts, urbanization, (over)harvesting of living and raw resources, extensive maritime traffic, aquaculture, invaders, pollution and eutrophication. Coastal habitats, their species composition and functioning are deeply altered by such increasing pressures. Scientific actors are designated as leaders to create new assessment methods while taking into account the difficulties of financing the necessary long term and large-scale surveys and monitoring schemes. In the European Union, Member States are required to abide Marine Strategy Framework Directive and achieve the “Good Environmental Status” (GES?) in their regional waters by 2020. To attempt this goal there is a need to develop sound knowledge on the least studied habitats, part...
This study deals with the structure of populations of Crustacea in Izmir Bay, Aegean Sea, Turkey.... more This study deals with the structure of populations of Crustacea in Izmir Bay, Aegean Sea, Turkey. Sampling was performed seasonally at 100 stations in three subsections of Izmir Bay in 1995 and 1996, in order to determine the distribution of benthic crustaceans. A total of ...
La répartition spatiale de la faune de crustacés décapodes associée aux moulières de Brachidontes... more La répartition spatiale de la faune de crustacés décapodes associée aux moulières de Brachidontes pharaonis (Mollusca, Bivalvia) des côtes levantines de Turquie a été étudiée en septembre 2005. Des échantillons en triple ont été collectés au moyen d'un échantillonneur carré ...
Molluscs, especially bivalves, play an important role in food production and are the dominant gro... more Molluscs, especially bivalves, play an important role in food production and are the dominant group in mariculture worldwide. They are also an important component of the marine ecosystem, influencing the food web and nutrient cycling, as well as creating and modifying habitats. In the Mediterranean Sea, about 578 non-native species have been reported, including 230 taxa of non-native mollusc species. In most regional European seas, including the Mediterranean, the socioeconomic impacts of high-impact mollusc species have generally been poorly studied, and only a few well-documented cases have been reported. The present study collects scientific information on non-native molluscs in Croatian waters that are classified as high impact according to the European Alien Species Information Network EASIN: one Gastropoda—Rapana venosa—and seven Bivalvia species—Anadara kagoshimensis, Anadara transversa, Arcuatula senhousia, Brachidontes pharaonis, Magallana gigas, Pinctada radiata, and Rudit...
The soft-bottom crustacean fauna from Izmir Bay was studied semi-annually between September 2014 ... more The soft-bottom crustacean fauna from Izmir Bay was studied semi-annually between September 2014 and April 2016. Benthic samples were collected by means of a Van Veen grab, sampling ca. 0.1 m2 area, at 4 stations in the inner (3 stations) and middle (a single station) parts of the bay. Forty-one species and 999 individuals belonging to seven crustacean orders (Sessilia, Mysida, Amphipoda, Cumacea, Tanaidacea, Isopoda, Decapoda) were identified. Amphipoda were represented with the highest number of species (21 species) followed by Isopoda (7) and Decapoda (6). Among the species encountered, Phtisica marina was the most dominant species with an average 90.6 individuals (27.22% of the total number of individuals) while Iphinoe douniae was the most frequent species (occurring in 50% of the samples). Eurycarcinus integrifrons De Man, 1879 is an alien decapod herein reported for the first time from the Aegean Sea.
En Mer Méditerranée, le coralligène et les herbiers de Posidonies, qui sont de loin les plus étud... more En Mer Méditerranée, le coralligène et les herbiers de Posidonies, qui sont de loin les plus étudiés, sont les habitats les plus importants du point de vue biodiversité côtière. Ils sont le milieu principal produisant complexité structurelle et biodiversité. Les récifs coralligènes produisent des biens (ressources alimentaires et matière première, y compris le corail rouge) et des services dans plusieurs domaines (séquestration de CO2 , Plongée loisir...). La pollution, les mouillages et la pêche au chalut peuvent entraîner leur dégradation, tandis que la pêche traditionnelle aussi bien que la pêche à la ligne affecte principalement des espèces cibles. La fréquentation croissante par les plongeurs est une autre cause de dégradation possible. Le coralligène peut également être menacé par des espèces exotiques invasives. Ces habitats qui sont d’une grande importance écologique, socio-économique et patrimoniale sont également soumis aux pressions liées aux changements globaux. Il a été...
Iskenderun Bay (north-west Levantine Sea) is intensely industrialized but it is oil pollution tha... more Iskenderun Bay (north-west Levantine Sea) is intensely industrialized but it is oil pollution that affects most of the coastal and marine ecosystems in the area. Molluscan species diversity in the bay is changing rapidly over the last decades due to the introduction of ...
A specimen of the invasive mytilid mussel Brachidontes pharaonis (Fischer P., 1870) was collected... more A specimen of the invasive mytilid mussel Brachidontes pharaonis (Fischer P., 1870) was collected on 18 April 2007 in Karaburun Peninsula, İzmir. This record represents the northernmost occurrence of the species along the Aegean coast of Turkey. Information on the distribution of the species along the Mediterranean coast of Turkey is provided.
Journal of the Marine Biological Association of the United Kingdom, 2017
The invasive alien mytilid species, Brachidontes pharaonis, forms a biogenic habitat in the medio... more The invasive alien mytilid species, Brachidontes pharaonis, forms a biogenic habitat in the mediolittoral and upper-infralittoral zones of the Levantine Sea, hosting a number of alien and native species. Examinations of samples taken from dense, continuous mussel beds at seven stations along the coast of northern Levantine Sea yielded 187 macro-benthic invertebrate species belonging to 11 taxonomic groups. Polychaeta accounted for 46% and 37% of the total number of species and individuals, respectively. The top three dominant species in the mussel beds were Stenothoe gallensis, Spirobranchus kraussi and Mytilaster minimus. The species with the highest frequency values on the mussel beds were Pseudonereis anomala, Phascolosoma stephensoni and Elasmopus pocillimanus. The highest density and biomass of the associated fauna were estimated as 42,550 ind m−2 and 1503 wwt g m−2, respectively. The species number in samples varied between 14 and 47 species. The environmental variables best e...
Within the frame of surveys conducted in Izmir Bay (Aegean Sea) in November 2008, April 2009 and ... more Within the frame of surveys conducted in Izmir Bay (Aegean Sea) in November 2008, April 2009 and April-May 2012, three mollusc species (Crepidula fornicata, Anadara polii and Arcuatula senhousia) have been recorded. Of the identified species, A. senhousia is new record for the molluscan fauna of the Aegean Sea and the calyptraeid gastropod C. fornicata is new report for the Turkish mollusc fauna. Besides, diagnostic features of A. polii, a rare arcid species, is given based on specimens from Izmir Bay.
The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of represen... more The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of representing less than 1% of the global ocean surface. This regional sea experiences high anthropogenic pressures, such as growing human population density along the coasts, urbanization, (over)harvesting of living and raw resources, extensive maritime traffic, aquaculture, invaders, pollution and eutrophication. Coastal habitats, their species composition and functioning are deeply altered by such increasing pressures. Scientific actors are designated as leaders to create new assessment methods while taking into account the difficulties of financing the necessary long term and large-scale surveys and monitoring schemes. In the European Union, Member States are required to abide Marine Strategy Framework Directive and achieve the “Good Environmental Status” (GES?) in their regional waters by 2020. To attempt this goal there is a need to develop sound knowledge on the least studied habitats, part...
This study deals with the structure of populations of Crustacea in Izmir Bay, Aegean Sea, Turkey.... more This study deals with the structure of populations of Crustacea in Izmir Bay, Aegean Sea, Turkey. Sampling was performed seasonally at 100 stations in three subsections of Izmir Bay in 1995 and 1996, in order to determine the distribution of benthic crustaceans. A total of ...
La répartition spatiale de la faune de crustacés décapodes associée aux moulières de Brachidontes... more La répartition spatiale de la faune de crustacés décapodes associée aux moulières de Brachidontes pharaonis (Mollusca, Bivalvia) des côtes levantines de Turquie a été étudiée en septembre 2005. Des échantillons en triple ont été collectés au moyen d'un échantillonneur carré ...
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