A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine spec... more A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine species composition and biomass of demersal fisheries resources. The average catch was 175.9±34.5 kg/hour (±se) and the average biomass 10,799.7±1,882.9 kg/nm2 (±se).
The distribution and antibacterial activities of bacteria isolated from fifty-five marine sponge ... more The distribution and antibacterial activities of bacteria isolated from fifty-five marine sponge samples collected from the Aegean Sea and the Sea of Marmara were investigated in the period between 2011 and 2013. The antibacterial activities of the methanolic extracts of marine sponge-associated bacteria tested against six pathogenic bacteria: Staphylococcus aureus SA1 and SA2, Brucella melitensis B37, Vibrio vulnificus GK23, Escherichia coli O157:H7 (ATCC 35150), and Salmonella enterica subsp. enterica serovar typhi (ATCC 167), using disk diffusion tests and minimum inhibitory concentration technique. The bacteria isolated from sponges and ambient seawater samples were identified using VITEK 2 Compact 30 automated microbial identification system. All bacterial extracts were exhibited antibacterial activity with various MIC values ranging from 7.8 mg/ mL to 1000 mg/mL against all pathogenic bacteria tested. The antibacterial efficacy rates found to be higher in the Aegean Sea than the Sea of Marmara samples. Fifty-five sponge samples belonging to fifteen species and host twenty-two bacterial species belonging to seven classes in two different marine areas at varying rates were detected. The most common sponge-associated bacterium was recorded as Sphingomonas paucimobilis and Bacillus cereus in the Aegean Sea and the Sea of Marmara, respectively. The composition and counts of the sponge-associated bacteria were found significantly higher than the free-living bacteria in the ambient sea water sampling points of both two marine areas. The presence of high antibacterial potential of sponge-related bacteria obtained in this study provided data for further studies on marine-derived antimicrobial agents, including the effects of environmental differences.
This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the ... more This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the Turkish Black Sea coast as a part of a study conducted between March 2013 and March 2014 to determine the macrozoobenthic crustacean communities on the coast of Şile, the Black Sea.
ABSTRACT A total of 1127 crustacean specimens was sampled from five stations in the deep-sea depr... more ABSTRACT A total of 1127 crustacean specimens was sampled from five stations in the deep-sea depressions of the Sea of Marmara (>1000 m deep). Calocaris macandreae Bell, 1853 was by far the dominant species at all stations. Polycheles typhlops C. Heller, 1862 and Sergestes robustus Smith, 1882 were found in low numbers.
ABSTRACT Three specimens of Scalpellum scalpellum (Linnaeus, 1767) were caught by a commercial bo... more ABSTRACT Three specimens of Scalpellum scalpellum (Linnaeus, 1767) were caught by a commercial bottom trawler (250-300 m depths) off the Gökçeada Island coast in the North Aegean Sea of Turkey in March 2008. Although the species had already been reported from the Istanbul Strait and the Marmara Sea; this is the first reported occurrence from the Aegean Sea coast of Turkey.
... 41st SIBM Congress Rapallo (GE) 7-11 June 266 p. Coll, M., Piroddi, C., Steenbeek, J., Kaschn... more ... 41st SIBM Congress Rapallo (GE) 7-11 June 266 p. Coll, M., Piroddi, C., Steenbeek, J., Kaschner, K., Ben Rais Lasram, F., et al. ... Cambridge University Press, 627 pp. Hoffmann L., Billard, C., Janssens M., Leruth, M., Demoulin, M. (2000). ...
ABSTRACT In this study, two high sea banks on the North Aegean Sea were sampled. The Johnston Ban... more ABSTRACT In this study, two high sea banks on the North Aegean Sea were sampled. The Johnston Bank has 41 m. depths with coralligenous habitat and The Sinaya Bank has 130 m. depths with mud-sandy habitat. Totally 2288 individuals belonging to 51 taxa in Johnston Bank and 490 individuals belonging to 17 taxa in Sinaya Bank were sampled. We assume that The Johnston Bank is an important spawning ground for many benthic species and needs protection. 1 1 1 1 1 Introduction Benthic studies in the North Aegean Sea are mostly on communities and species check-list [1], [2], [3]. The Aegean Sea has several banks what makes it very important for benthic biodiversity. However, the studies on these banks are limited. The characteristics of the benthos of Bruker, Mansell and Stocks banks were comparatively studied [4] and the most complicated trophic structure was found at the Stocks bank whereas the simplest one was near the Lesbos Island. A recent study was conductedon the habitat structure and biological characteristics of a maerl bed off the northeastern coast of the Maltese Islands [5]. Two stations were monitored to study temporal variation in species diversity. The maerl bed proved to have high species diversity with 244 animal and 87 algal taxa recorded; Bittium latrelli was the dominant taxa. Material and Methods Two high sea banks were studied at the North Aegean Sea. The Sta.1 is known as Johnston Bank at 41 m depth surrounded by depths of 200-500 m. The Sta.2 is known as Sinaya Bank at 130 m surrounded by depths of 200-300 m (See Map.1). The samples were taken by dredge with 2 knot speed during 10 minutes at the end of November 2008. The water temperature, salinity and dissolved oxygen were measured by SeaCat 19plus CTD profiler. The samples were counted, identified and fixed.
This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the ... more This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the Turkish Black Sea coast as a part of a study conducted between March 2013 and March 2014 to determine the macrozoobenthic crustacean communities on the coast of Şile, the Black Sea.
A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine spec... more A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine species composition and biomass of demersal fisheries resources. The average catch was 175.9±34.5 kg/hour (±se) and the average biomass 10,799.7±1,882.9 kg/nm2 (±se).
A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine spec... more A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine species composition and biomass of demersal fisheries resources. The average catch was 175.9±34.5 kg/hour (±se) and the average biomass 10,799.7±1,882.9 kg/nm2 (±se).
The distribution and antibacterial activities of bacteria isolated from fifty-five marine sponge ... more The distribution and antibacterial activities of bacteria isolated from fifty-five marine sponge samples collected from the Aegean Sea and the Sea of Marmara were investigated in the period between 2011 and 2013. The antibacterial activities of the methanolic extracts of marine sponge-associated bacteria tested against six pathogenic bacteria: Staphylococcus aureus SA1 and SA2, Brucella melitensis B37, Vibrio vulnificus GK23, Escherichia coli O157:H7 (ATCC 35150), and Salmonella enterica subsp. enterica serovar typhi (ATCC 167), using disk diffusion tests and minimum inhibitory concentration technique. The bacteria isolated from sponges and ambient seawater samples were identified using VITEK 2 Compact 30 automated microbial identification system. All bacterial extracts were exhibited antibacterial activity with various MIC values ranging from 7.8 mg/ mL to 1000 mg/mL against all pathogenic bacteria tested. The antibacterial efficacy rates found to be higher in the Aegean Sea than the Sea of Marmara samples. Fifty-five sponge samples belonging to fifteen species and host twenty-two bacterial species belonging to seven classes in two different marine areas at varying rates were detected. The most common sponge-associated bacterium was recorded as Sphingomonas paucimobilis and Bacillus cereus in the Aegean Sea and the Sea of Marmara, respectively. The composition and counts of the sponge-associated bacteria were found significantly higher than the free-living bacteria in the ambient sea water sampling points of both two marine areas. The presence of high antibacterial potential of sponge-related bacteria obtained in this study provided data for further studies on marine-derived antimicrobial agents, including the effects of environmental differences.
This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the ... more This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the Turkish Black Sea coast as a part of a study conducted between March 2013 and March 2014 to determine the macrozoobenthic crustacean communities on the coast of Şile, the Black Sea.
ABSTRACT A total of 1127 crustacean specimens was sampled from five stations in the deep-sea depr... more ABSTRACT A total of 1127 crustacean specimens was sampled from five stations in the deep-sea depressions of the Sea of Marmara (>1000 m deep). Calocaris macandreae Bell, 1853 was by far the dominant species at all stations. Polycheles typhlops C. Heller, 1862 and Sergestes robustus Smith, 1882 were found in low numbers.
ABSTRACT Three specimens of Scalpellum scalpellum (Linnaeus, 1767) were caught by a commercial bo... more ABSTRACT Three specimens of Scalpellum scalpellum (Linnaeus, 1767) were caught by a commercial bottom trawler (250-300 m depths) off the Gökçeada Island coast in the North Aegean Sea of Turkey in March 2008. Although the species had already been reported from the Istanbul Strait and the Marmara Sea; this is the first reported occurrence from the Aegean Sea coast of Turkey.
... 41st SIBM Congress Rapallo (GE) 7-11 June 266 p. Coll, M., Piroddi, C., Steenbeek, J., Kaschn... more ... 41st SIBM Congress Rapallo (GE) 7-11 June 266 p. Coll, M., Piroddi, C., Steenbeek, J., Kaschner, K., Ben Rais Lasram, F., et al. ... Cambridge University Press, 627 pp. Hoffmann L., Billard, C., Janssens M., Leruth, M., Demoulin, M. (2000). ...
ABSTRACT In this study, two high sea banks on the North Aegean Sea were sampled. The Johnston Ban... more ABSTRACT In this study, two high sea banks on the North Aegean Sea were sampled. The Johnston Bank has 41 m. depths with coralligenous habitat and The Sinaya Bank has 130 m. depths with mud-sandy habitat. Totally 2288 individuals belonging to 51 taxa in Johnston Bank and 490 individuals belonging to 17 taxa in Sinaya Bank were sampled. We assume that The Johnston Bank is an important spawning ground for many benthic species and needs protection. 1 1 1 1 1 Introduction Benthic studies in the North Aegean Sea are mostly on communities and species check-list [1], [2], [3]. The Aegean Sea has several banks what makes it very important for benthic biodiversity. However, the studies on these banks are limited. The characteristics of the benthos of Bruker, Mansell and Stocks banks were comparatively studied [4] and the most complicated trophic structure was found at the Stocks bank whereas the simplest one was near the Lesbos Island. A recent study was conductedon the habitat structure and biological characteristics of a maerl bed off the northeastern coast of the Maltese Islands [5]. Two stations were monitored to study temporal variation in species diversity. The maerl bed proved to have high species diversity with 244 animal and 87 algal taxa recorded; Bittium latrelli was the dominant taxa. Material and Methods Two high sea banks were studied at the North Aegean Sea. The Sta.1 is known as Johnston Bank at 41 m depth surrounded by depths of 200-500 m. The Sta.2 is known as Sinaya Bank at 130 m surrounded by depths of 200-300 m (See Map.1). The samples were taken by dredge with 2 knot speed during 10 minutes at the end of November 2008. The water temperature, salinity and dissolved oxygen were measured by SeaCat 19plus CTD profiler. The samples were counted, identified and fixed.
This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the ... more This paper reports an isopod species, Idotea ostroumovi Sowinsky, 1895 for the first time in the Turkish Black Sea coast as a part of a study conducted between March 2013 and March 2014 to determine the macrozoobenthic crustacean communities on the coast of Şile, the Black Sea.
A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine spec... more A bottom trawl survey was carried out in the Marmara Sea in summer 2001in order to determine species composition and biomass of demersal fisheries resources. The average catch was 175.9±34.5 kg/hour (±se) and the average biomass 10,799.7±1,882.9 kg/nm2 (±se).
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