00578nas a2200145 4500008004100000245017400041210006900215300001200284490000900296100002400305700002300329700001800352700001600370856004600386 2014 eng d00aCryptic speciation of Greek populations of the freshwater shrimp genus Atyaephyra de Brito Capello, 1867 (Crustacea, Decapoda), evidence from mitochondrial DNA0 aCryptic speciation of Greek populations of the freshwater shrimp a401-4240 v37901 aGarcía-Muñoz, J E1 aRaso, García, J E1 aRodríguez, A1 aCuesta, J A uhttps://atyaephyra.myspecies.info/node/5402380nas a2200157 4500008004100000245014100041210006900182300001200251490000900263520182300272100002402095700001802119700002302137700001602160856004602176 2009 eng d00aGenetic evidence for cryptic speciation in the freshwater shrimp genus Atyaephyra de Brito Capello (Crustacea, Decapoda, Atyidae)0 aGenetic evidence for cryptic speciation in the freshwater shrimp a32–420 v20253 a

The species Atyaephyra desmarestii (Millet, 1831) has a wide geographic distribution in freshwater habitats, rivers and lakes, spanning from North Africa to the Middle East, a large part of Europe and some Mediterranean islands. This wide distribution, together with the disjunct nature of freshwater populations, makes A. desmarestii a candidate taxon to undergo processes of cryptic speciation. To test this assumption, in the present study two mitochondrial genes (16S and COI) were used to examine the diversity between selected populations across the distribution range of this species. The data support three clearly distinguishable groups of haplotypes. The largest one includes the majority of the west European populations and the North African ones, belonging to Atyaephyra desmarestii desmarestii. Within this group the genetic composition found for the Portuguese specimens does not support the validity of Atyaephyra rosiana de Brito Capello, 1867 as a different species, and is therefore here proposed to represent a synonym of Atyaephyra desmarestii. The second European group includes two Greek populations which must be considered as a different species and are tentatively identified as Atyaephyra stankoi (Karaman, 1972) according to geographic distribution. This species-level distinction is supported by high genetic differences, although morphological differentiation is not clear at present. The third group comprises only one sequence from Iraq whose value of genetic variability for 16S could support A. mesopotamica Al-Adhub (or A. orientalis Bouvier) as a valid species. Unfortunately, there are no COI sequences available for this specimen that could be used to confirm its status.

1 aGarcía-Muñoz, J E1 aRodríguez, A1 aRaso, García, J E1 aCuesta, J A uhttps://atyaephyra.myspecies.info/node/3601889nas 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