01825nas a2200145 4500008004100000245018600041210006900227260002300296520123900319100002101558700002201579700001601601700001601617856004601633 2016 eng d00aFreshwater Shrimps (Atyidae, Palaemonidae, Typhlocarididae) in the Broader Mediterranean Region: Distribution, Life Strategies, Threats, Conservation Challenges and Taxonomic Issues0 aFreshwater Shrimps Atyidae Palaemonidae Typhlocarididae in the B aNew YorkbSpringer3 a

The turbulent and intricate geology of the Mediterranean region has been responsible for connections, redirections, and interruptions of freshwater systems that have been instrumental in the speciation and distribution of many organisms, including freshwater shrimps. There are 50 species and subspecies currently reported from the freshwater systems of the broader Mediterranean region that belong to 11 genera and three families. Three of these are exotic species that have been introduced to the region’s ecosystems from elsewhere. The majority of species of Mediterranean freshwater shrimps belong to the Atyidae, followed by the Palaemonidae, and the Typhlocarididae, and most species have a very restricted distributional range. Among the three Mediterranean Peninsulas, the Balkan Peninsula fosters the highest biodiversity and is the species hotspot within the region. Subterranean (hypogean) and surface (epigean) habitats of the broader Mediterranean region are equally dwelled by shrimps. Currently 14 native species of freshwater shrimps are assessed by the IUCN Red List as threatened with extinction from increased freshwater ecosystem degradation which underlines the urgent need for conservation action.

1 aChristodoulou, M1 aAnastasiadou, Ch.1 aJugovic, J.1 aTzomos, Th. uhttps://atyaephyra.myspecies.info/node/5801994nas a2200193 4500008004100000245018100041210006900222300001400291490000700305520129900312653002301611653001801634653002401652653002201676653001301698100002101711700002201732856004601754 2017 eng d00aSexual dimorphism in the shrimp genus Atyaephyra De Brito, 1867 (Caridea: Atyidae): the case study of Atyaephyra thyamisensisChristodoulou, Antoniou, Magoulas & Koukouras, 20120 aSexual dimorphism in the shrimp genus Atyaephyra De Brito 1867 C a588–6010 v373 a

We describe the sexual dimorphism in the genus Atyaephyrade Brito Capello, 1867 (family Atyidae De Haan, 1849) through the example of A. thyamisensisChristodoulou, Antoniou, Magoulas & Koukouras, 2012 as a contribution to the ongoing effort to describe the morphological variability in the genus. Individuals of A. thyamisensis were collected from Thyamis River (Epirus, northwestern Greece) over a period of five years. Selected characters were examined on the basis of already known differences recorded from the literature and from direct observations in order to detect possible intersexual morphological differences in this species. A total of 42 somatometric distances and 14 meristic characters were measured. The morphological comparison as well as the statistical analysis showed a clear separation between the two sexes and between non-ovigerous and ovigerous females. Besides the first and second pair of pleopods, sex-related differences were found between the third and fourth pair of pereiopods, rostrum, carapace, antennules, and chelae, whereas differences between the non-ovigerous and ovigerous females were most obvious in the abdominal segments. Also discussed are the key sexual morphological characters that can aid in distinguishing the species of Atyaephyra

10afreshwater shrimps10amorphometrics10aphyletic dimorphism10asexual characters10ataxonomy1 aChristodoulou, M1 aAnastasiadou, Ch. uhttps://atyaephyra.myspecies.info/node/5701648nas a2200193 4500008004100000245013200041210006900173300000900242490000600251520102100257100002201278700001701300700001501317700001701332700001801349700002101367700002001388856004601408 2004 eng d00aMorphological variation in Atyaephyra desmarestii (Millet, 1831) within andamong populations over its geographical range0 aMorphological variation in iAtyaephyra desmarestiii Millet 1831  a5-130 v53 a

In order to elucidate the distinction of Atyaephyra desmarestii subspecies (A. d. desmarestii, A. d. orientalis, A. d. stankoi and A. d. mesopotamica) and investigate their geographical distribution in Greece, the main morphological features and somatometric ratios were studied in numerous specimens collected from a dense station network of Greek fresh waters. Specimens from Belgium, Portugal, Albania and Turkey were also examined. Atyaephyra desmarestii was found in western and northern Greece while it was absent in eastern Greece, the Aegean and the Ionian islands. The comparison of the obtained data with those of the literature revealed a clearly overlapping variability of the main key morphological features among the four subspecies. The results of this study indicate that the current A. desmarestii subspecies are not valid on the basis of the used key features. There is only one very variable species with many ecophenotypes.

1 aAnastasiadou, Ch.1 aKoukouras, A1 aMavidis, M1 aChartosia, N1 aMostakim, Md.1 aChristodoulou, M1 aAslanoglou, Ch. uhttps://atyaephyra.myspecies.info/node/1500964nas a2200145 4500008004100000245012600041210006900167300001400236490000700250520045900257100002200716700001700738700001700755856004600772 2006 eng d00aRedescription of Atyaephyra desmarestii (Millet, 1831) (Decapoda, Caridea, Atyidae) based on topotypical specimens0 aRedescription of iAtyaephyra desmarestiii Millet 1831 Decapoda C a1195-12070 v793 a

The freshwater shrimp, Atyaephyra desmarestii (Millet, 1831) is redescribed on the basis of a topotypical population (Toulouse). Its original description by Millet (1831) is very short and inadequate. Concerning populations from the same area, no further descriptive information has been actually given. Specimens studied from a Belgian population (Ombret) did not show any important differences from the French ones.

1 aAnastasiadou, Ch.1 aKitsos, M -S1 aKoukouras, A uhttps://atyaephyra.myspecies.info/node/1601077nas a2200145 4500008004100000245015100041210006900192300001200261490000700273520055000280100002200830700001600852700001700868856004600885 2008 eng d00aRedescription of Atyaephyra rosiana de Brito Capello, 1867 (Decapoda, Caridea, Atyidae) based on a population close to the topotypical area0 aRedescription of iAtyaephyra rosianai de Brito Capello 1867 Deca a191-2050 v813 a

The freshwater shrimp, Atyaephyra rosiana De Brito Capello, 1867 is redescribed on the basis of a population (Algarve, Portugal) close to the topotypical area and a neotype is designated for this species. Its original description by De Brito Capello (1867) is very short and inadequate. A detailed comparison of the neotypes of A. rosiana and Atyaephyra desmarestii (Millet, 1831) revealed the presence of key morphological features that clearly distinguish these species from each other. 

1 aAnastasiadou, Ch.1 aKitsos, M S1 aKoukouras, A uhttps://atyaephyra.myspecies.info/node/1701889nas a2200145 4500008004100000245018800041210006900229300001200298490000900310520132300319100002201642700001401664700001901678856004601697 2011 eng d00aLarval development of the freshwater shrimp Atyaephyra desmarestii (Millet, 1831) sensu lato (Decapoda, Caridea, Atyidae) and morphological maturation from juveniles to adults.0 aLarval development of the freshwater shrimp iAtyaephyra desmares a41–540 v28773 a

A complete serial of larval staging of Atyaephyra desmarestii (Millet, 1831) sensu lato from Louros River (north-western Greece) was obtained in the laboratory and described in detail. Thirty berried females were collected and transferred to an aquarium containing water and vegetation from the sampling site. The newly hatched larvae were transferred into small sterile aquaria and mass cultured. After each moult, several larvae were photographed and preserved with their exuviae. The reared larvae of A. desmarestii sensu lato passed through six zoeal stages and one megalopal stage. At the experimental conditions, the durations of each larval stage were as follows: three days for the 1st larval stage; three to four days for 2nd larval stage; six to eight days for 3rd; seven to nine days for 4th; nine to ten days for 5th, 6th and megalopal stages. All the obtained stages were described in detail. The larval morphological characters of the described material and the larvae specimens collected from natural populations were compared with the literature data on closely related species. Morphological description of the different phases for juveniles, immature, female and male mature individuals of A. desmarestii sensu lato are also presented in detail.

1 aAnastasiadou, Ch.1 aNtakis, A1 aLeonardos, I D uhttps://atyaephyra.myspecies.info/node/18