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Determined Gammarid species. From left to right: Gammarus pulex pulex, Gammarus uludagi, Gammarus aequicauda (Photo by: M. Özbek)
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Marmara Denizi’nin önemli adalarından olan Marmara ve Paşalimanı adaları ile Kapıdağ Yarımadası içsularında dağılım gösteren Gammaridae türlerinin tespit edilmesi amacıyla, 24-28 Ağustos 2010 tarihleri arasında 21 farklı istasyondan örneklemeler yapılmıştır. Yapılan çalışmalar sonucunda, örnekleme yapılan istasyonlarda Gammaridae familyasının Gamma...
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Citations
... It is an endemic species of Turkey. Also, several records were given from the western parts of Anatolia, the island of Lesbos on the Anatolian coast, and the Black Sea Region of Turkey (Akbulut et al., 2009b;Karaman, 1975;Karaman & Pinkster, 1977;Özbek et al., 2015Şirin et al., 2009). In the present study, it was firstly recorded from a fountain in the Pasha Plateau on the Aydın Mountains, and Bilecik, and a stream in Sakarya. ...
To determine the Amphipoda (Crustacea) fauna of the inland waters of Western Anatolia, Marmara and the Turkish Thrace Region, field studies were conducted between May 2014 and March 2019.
Seven field studies were conducted. Samplings were conducted at 291 localities and amphipod specimens were found at 127 of them. As a result, 11 amphipod species (Echinogammarus stocki
G. Karaman, 1970, Gammarus aequicauda (G. Karaman, 1970), Gammarus anatoliensis Schellenberg, 1937, Gammarus arduus G. Karaman, 1975, Gammarus balcanicus Schäferna, 1923, Gammarus dorsosetosus Mateus & Mateus, 1990, Gammarus gonensis Özbek, 2016, Gammarus komareki Schäferna, 1923, Gammarus lacustris G.O. Sars, 1863, Gammarus pulex pulex (Linnaeus, 1758), Gammarus uludagi G.S. Karaman, 1975) were determined. The new records can be listed as:
E. stocki for Ekinanbarı, G. anatoliensis for Uşak, G. arduus for Bolu and Düzce, G. balcanicus for Kocaeli and Sakarya, G. dorsosetosus for Bolu, G. gonensis for Istanbul and Manisa, G. komareki
for Düzce and Kocaeli, G. lacustris for Istanbul, G. pulex pulex for Bolu, Kırklareli, Kocaeli, Sakarya and Uşak, and G. uludagi for Aydın, Bilecik, Sakarya and Yalova provinces. The observed morphological features and the detailed drawings of the determined taxa are presented. Additionally, a map showing the distribution of the obtained species is also given.
... It is an endemic species of Turkey. Also, several records were given from the western parts of Anatolia, the island of Lesbos on the Anatolian coast, and the Black Sea Region of Turkey (Akbulut et al., 2009b;Karaman, 1975;Karaman & Pinkster, 1977;Özbek et al., 2015Şirin et al., 2009). In the present study, it was firstly recorded from a fountain in the Pasha Plateau on the Aydın Mountains, and Bilecik, and a stream in Sakarya. ...
To determine the Amphipoda (Crustacea) fauna of the inland waters of Western Anatolia, Marmara and the Turkish Thrace Region, field studies were conducted between May 2014 and March 2019. Seven field studies were conducted. Samplings were conducted at 291 localities and amphipod specimens were found at 127 of them. As a result, 11 amphipod species (Echinogammarus stocki G.
... Although there are some studies on the distribution of the amphipod species in the mentioned area, they are less in number and deal only with a few species (Yeşilmen & Kirgiz 1996, Kocataş et al. 2003 Gammarus aequicauda has a wide distribution area including the Eastern Mediterranean and the Black Sea. The species has a euryhaline character and is well known from the lakes, lagoons and river mouths located in the coasts of western and northern Anatolia (Ustaoğlu et al. 2000, Özbek & Ustaoğlu 1998, Özbek et al. 2015. In the present study, G. aequicauda was reported from the Ezine District and Gala Gölü which is a shallow wetland area located near the estuary of Meriç (Maritza) River. ...
In order to determine the fresh and brackish water amphipod species of the Turkish Thrace Region, specimens
were sampled from 68 localities in İstanbul, Edirne, Tekirdağ, Kırklareli and Çanakkale Provinces.
Totally, 16 amphipod taxa were identified: Gammarus arduus G. Karaman, 1975, G. komareki Schäferna,
1922, G. pulex pulex (L., 1758), G. fossarum Koch, 1836, G. balcanicus Schäferna, 1922, G. aequicauda
(Martynov, 1931), G. subtypicus Stock, 1966, G. uludagi Karaman, 1975, G. gonensis Özbek, 2016, G.
kesanensis Özbek & Çamur-Elipek, 2010, Dikerogammarus istanbulensis Özbek & Özkan, 2011, Amathillina
cristata Sars, 1894, Orchestia cavimana Heller, 1865, Synurella ambulans F. Müller, 1846,
Pontogammarus robustoides Sars, 1894 and Niphargus sp. All the determined species were previously
recorded from Turkey. This is the first record of Gammarus gonensis in Europe. Information about the
sampling localities and a distribution map of the species are presented.
... Although there are some studies on the distribution of the amphipod species in the mentioned area, they are less in number and deal only with a few species (Yeşilmen & Kirgiz 1996, Kocataş et al. 2003 Gammarus aequicauda has a wide distribution area including the Eastern Mediterranean and the Black Sea. The species has a euryhaline character and is well known from the lakes, lagoons and river mouths located in the coasts of western and northern Anatolia (Ustaoğlu et al. 2000, Özbek & Ustaoğlu 1998, Özbek et al. 2015. In the present study, G. aequicauda was reported from the Ezine District and Gala Gölü which is a shallow wetland area located near the estuary of Meriç (Maritza) River. ...
In order to determine the fresh and brackish water amphipod species of the Turkish Thrace Region, specimens were sampled from 68 localities in ?stanbul, Edirne, Tekirda?, K?rklareli and Çanakkale Provinces. Totally, 16 amphipod taxa were identified: Gammarus arduus G. Karaman, 1975, G. komareki Schäferna, 1922, G. pulex pulex (L., 1758), G. fossarum Koch, 1836, G. balcanicus Schäferna, 1922, G. aequicauda (Martynov, 1931), G. subtypicus Stock, 1966, G. uludagi Karaman, 1975, G. gonensis Özbek, 2016, G. kesanensis Özbek & Çamur-Elipek, 2010, Dikerogammarus istanbulensis Özbek & Özkan, 2011, Amathillina cristata Sars, 1894, Orchestia cavimana Heller, 1865, Synurella ambulans F. Müller, 1846, Pontogammarus robustoides Sars, 1894 and Niphargus sp. All the determined species were previously recorded from Turkey. This is the first record of Gammarus gonensis in Europe. Information about the sampling localities and a distribution map of the species are presented.
Malacostraca is a highly diversified and speciose class of crustaceans. Out of the estimated 26,000 malacostracan species described so far, about 6,000 inhabit plethora of freshwater habitats worldwide. The Mediterranean Region has been recognized as one of the 25 most important biodiversity and endemism hotspots worldwide and its islands are considered to be the natural laboratories of the evolution. Even though, the Mediterranean Region is housing roughly 6% of world freshwater taxa, the knowledge about the freshwater fauna of the Mediterranean Basin is incomplete and the studies upon the freshwater biota on the Mediterranean Islands are scarce. Here we provide arguably the first such an extensive study on the freshwater fauna of the Mediterranean Islands. Up to date, the fresh waters of the Mediterranean islands houses 181 species belonging to five different orders of Malacostraca (Amphipoda, Isopoda, Thermosbaenacea, Bathynellacea, Decapoda), representing 50 genera and 26 families. More than a half of them are endemic to the islands.
Even though the islands cover only about 5% of the area of the Mediterranean Region and about 0.2% of the whole Palearctic, the overall number of species corresponds to 25% of all the malacostracan species reported from the region and more than 8% of the Palearctic Malacostraca. Our review confirms that the Mediterranean islands are the biodiversity hotspot for the freshwater malacostracans. Although the number of reported insular species is already high, one might expect that this number will keep on growing, due to the implementation of the DNA-based taxonomic assessments with nearly 10% of all reported freshwater malacostracans from the Mediterranean islands being described in the last ten years. Owing to ongoing climate change and anthropogenic activities, however, the rate of extinction of freshwater biota is believed to be even five times higher than in the terrestrial organisms. We think that planning reasonable and efficient strategy of protecting the local, especially endemic freshwater fauna is urgently needed, and therefore more similarly broad reviews of the insular freshwater biota are needed. We also believe that our study will not only be of use for the future generations of carcinologists, but will also raise the public awareness and inform the local authorities on the richness of the insular freshwater biodiversity.
In order to determine the Amphipod species inhabited the inland waters of the Gökçeada Island, which is the biggest island of Turkey in the Aegean Sea, samples were sampled from 17 localities in different dates, were carried out. Samples were collected with 500 µm mesh-sized hand nets and were fixed in 4% formalin solution in field.
As a result, three species [Gammarus komareki Schäferna 1922, Gammarus aequicauda (Martynov, 1931) and Orchestia mediterranea Costa, 1853] belonging to Gammaridae and Talitridae families were determined. All of the three species are newly recorded from Gökçeada Island.
