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This study aimed to investigate the seasonal distribution of the Malacostraca fauna in the Seyhan Basin by examining their relationship with some physicochemical parameters. Field studies were done in the spring, summer, and autumn of 2019 at 23 stations. As a result, 4302 individuals were examined, and 5 families (Niphargidae, Gammaridae, Palemonidae ve Potamidae) and 10 species belonging to the orders Amphipoda and Decapoda were recorded. Echinogammarus ischnus, Gammarus mladeni and G. pseudanatoliensis are the first records for this basin. According to the results of the Shannon-Wiener diversity (H) index, the highest diversity was calculated at station 11 in the spring (0.72), at station 22 (0.66) in the summer and autumn, the lowest diversity was recorded at station 3 in the spring (0.22) and autumn (0.05), and at station 1 in the summer (0.17). According to Shannon Evenness (E), the most balanced distribution was found at station 22 in the spring and summer (0.97), and at station 1 in the autumn (0.96). The stations with the lowest homogeneity were determined as at station 3 in the spring (0.22) and autumn (0.53), and at station 1 in the summer (0.59). According to the results of the clustering analysis, the highest similarity was observed between the 3rd and 5th stations (89%), while the 2nd station was determined to be the station with the lowest similarity, separating from all other stations. According to the Pearson correlation analysis, a significant negative correlation was observed between DO and temperature and total nitrogen, while a significant positive correlation was found between temperature and EC (P<0.01). When the water quality classes of the stations are examined according to the criteria of the Water Quality Regulation, stations have 1st (very clean) or 2nd (moderately polluted) class water quality. [ABSTRACT FROM AUTHOR]

The aim of the study was to identify the species of the Malacostraca distributed in the estuarine habitats of the eastern part of the Black Sea of Turkey using both morphological and molecular data. Samples were collected from 11 stations in 2019–2020. Fifteen species were found. Eleven of them were identified based on sequences of COI gene region published in the GenBank and morphological differences. These were Echinogammarus foxi, Jassa marmorata, Dexamine cf. thea, Gammarellus angulosus, Amphithoe ramondi, Monocorophium insidiosum, Idotea balthica, Eriphia verrucosa, Pilumnus spinulosus, Pachygrapsus marmoratus and Palaemon elegans. Futher four species, i.e. Gammarus crinicornis, Lekanesphaeroma monodi, Pisidia bluteli and Tanais dulongi, were identified based on morphological data only. Due to the rapid degradation of the DNA of Malacostraca individuals and insufficient or partially incorrect information in the Genbank, genetic comparisons of some species could not be implemented. In order to solve this problem, it is discussed that species-specific primers have to be developed in future studies. [ABSTRACT FROM AUTHOR]

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. [ABSTRACT FROM AUTHOR]

A single specimen of Paradella dianae (Menzies 1962) (Isopoda, Flabellifera, Sphaeromatidae) was collected at the depths ranging 0-5 m on the rocky bottom of the Cape Dogan in Fethiye Bay on the Levantine Sea coast of Turkey on 9 July 2008. The alien isopod, P. dianae, is reported from Turkish coast for the first time. [ABSTRACT FROM AUTHOR]

This recent checklist of marine arthropods found on the coasts of Turkey represents a total of 1531 species belonging to 7 classes: Malacostraca (766 species), Maxillopoda (437 species), Ostracoda (263 species), Pycnogonida (27 species), Arachnida (26 species), Branchiopoda (7 species), and Insecta (5 species). Seventy-five species were classified as alien species in the region. This paper also includes the first record of the amphipod Melita valesi from the Levantine coast of Turkey (Kaş, Gulf of Antalya). [ABSTRACT FROM AUTHOR]

Data on deep sea leptostracans (Crustacea: Phyllocarida: Leptostraca) are still scarce in many parts of the world. In the last few years, several species of Nebalia Leach, 1814, have been reported from the eastern Mediterranean; however, there have been no reports from waters deeper than 100 m. Samples collected recently from Gökçeada, Turkey--at depths of 680-820 m in the Aegean Sea, eastern Mediterranean--included Nebalia abyssicola Fage, 1929. This is the first record for the study area and one of the few known records of this species. Specimens are described and figured to complement previous descriptions. A key for all known leptostracans from the eastern Mediterranean is also provided. [ABSTRACT FROM AUTHOR]

Malacostraca fauna collected from freshwater and brackishwater in Sinop and Samsun were studied from 181 stations between February 1999 and September 2000. 19 species and 4 subspecies belonging to 15 genuses were found in 134 stations. In total, 23 taxon were found: II Amphipoda, 6 Decapoda, 4 Isopoda, and 2 Mysidacea. Limnomysis benedeni is the first time in Turkish Mysidacea fauna. In this work at the first time recorded group are Gammarus pulex pulex. Gammarus aequicauda, Garnmarus uludagi, Gammarus komareki, Gammarus longipedis, Gammarus balcanicus, Echinogammarus ischnus, Orchestia stephenseni Paramysis kosswigi, Idotea baltica basteri, Idotea hectica, Sphaeroma serratum, Palaemon adspersus, Crangon crangon, Potamon ibericum tauricum and Carcinus aestuaril in the studied area. Potamon ibericum tauricurn is the most encountered and widespread species. [ABSTRACT FROM AUTHOR]

In order to contribute to the knowledge on the distribution of Malacostraca (Crustacea) species inhabiting freshwaters of central and southern parts of Anatolia, Turkey, sampling was performed at 69 stations between 29 May and 4 June 2006 and between 19 and 25 June 2006. Malacostraca specimens were found at 26 out of the 69 stations and were represented by 11 taxa (Gammarus agrarius, Gammarus argaeus, Gammarus anatoliensis, Gammarus balcanicus, Gammarus mladeni, Gammarus pseudosyriacus, Echinogammarus antalyae, Asellus aquaticus, Palaemonetes antennarius, Atyaepyra desmaresti orientalis, and Astacus leptodactylus). The zoogeographical distribution and ecology of the determined taxa are presented herein. [ABSTRACT FROM AUTHOR]

Gammarus dorsosetosus Mateus & Mateus, 1990, a freshwater amphipod endemic to Turkey, is herein reported for the second time from Turkey. Until now, there exists only one record of this species, i.e., the original description of Mateus & Mateus (1990). In order to contribute to the knowledge on distribution, ecology, and morphology of the species, detailed morphological descriptions and illustrations of the extremities of both sexes, distribution localities, and environmental conditions of the localities are given, in addition to a comparison with similar species. [ABSTRACT FROM AUTHOR]

The article presents a study on the new record of a Lessepsian Amphipod from the Levantine Coast of Turkey. The Elasmopus pectenicrus found at the Levantine sea has a total length of eight millimeters, and gnathopod I smaller than gnathopod II. This amphipod prefers to live among algae or on shell bottoms, and generally inhabits depths ranging from 0.1 to 50 meters.

In this study, a checklist is given of the Amphipoda known from the Black Sea up to the present (88 species). For compiling this list, we reviewed all available records of Amphipoda in the Black Sea. In addition, the benthos samples resulting from surveys carried out at the Black Sea coasts of Turkey from the 1980s until now were reviewed, and some additions to the list were made. [ABSTRACT FROM AUTHOR]

This study aimed to contribute to the knowledge of Turkish Malacostraca fauna by determining the Malacostraca (Crustacea) fauna of Yuvarlak Stream. Monthly sampling was performed at 10 stations along the stream between May 2001 and April 2002. Eleven taxa were determined; of these, 5 (Gammarus balcanicus, Gammarus Iongipedis, Echinogammarus antalyae, Corophium orien tale and Orchestia platensis) belong to Amphipoda, 3 (Palaemonetes antennarius, Atyaephyra desmarestii orientalis and Potamon potamios) to Decapoda, 2 (Lekanesphaera hookeri and Cyathura carinata) to Isopoda and 1 (Diamysis mesohalobia mesohalobia) to Mysidacea. [ABSTRACT FROM AUTHOR]

In order to determine the Malacostraca fauna of water bodies in the Taurus Mountains, southern Anatolia, 2 field studies were conducted in 1996 and 1 997. As a result, Asellus aquaticus (L. 1758). Gammarus balcanicus Schäferna 1922, Gammarus longipedis G.S. Karaman & Pinkster 1987 and Stygobromus ambulans (F. Müller 1846) were determined from the investigated area. All the determined taxa are recorded for the first time from these localities. [ABSTRACT FROM AUTHOR]