The genus Thermocyclops (Crustacea: Copepoda) in Uzbekistan (Central Asia)

Abstract

Five Thermocyclops species were found in Uzbekistan: T. crassus, T. dybowskii, T. rylovi, T. raihokuensis, and T. vermifer. The last species has been for the first time recorded in the region. The data on morphology, variability and distribution of these species in Uzbekistan are given. A key to determine to the five species is proposed.

Redescription of the OrientalThermocyclops taihokuensis(Harada, 1931) (Copepoda: Cyclopoida) from its westernmost population

“…In the Russian Far East it was recorded as T. asiaticus (RYLOV 1936(RYLOV , 1948 while HERBST (1986) found it in Korea. Finally, it was discovered in Central Asia and Kazakhstan (MIRABDULLAYEV et al 1994(MIRABDULLAYEV et al , 1997 south of the Aral Sea. In the present publication, we report T. taihokuensis from even further west, near the Caspian Sea.…”

“…T. oithonoides Kiefer, 1978, T. crassus (Fischer, 1853, T. rylovi (Smirnov, 1928), T. dybowskii (Lande, 1890) and T. taihokuensis (Harada, 1931) (MONCHENKO 2003. All these species were also found in a careful investigation of the species of this genus, further east in Uzbekistan (Central Asia), by MIRABDULLAYEV & KUZMETOV (1997).…”

Distribution of cyclopoid copepods in different subterranean habitats (southern Poland)

“…Basic identification was conducted using a key by Rybak & Błędzki (2005) and Błędzki & Rybak (2016), nauplii were not identified to the species level. Finally, female adults of cyclopoids and last larval stages (copepodite V) were identified to the species level following the identification keys by: Dussart & Defaye (2001), Iepure & Defaye (2008), Kiefer (1960), Mirabdullayev & Kuzmetov (1998), Pesce & Galassi (1984), Pesce (1992), Pospisil & Stoch (1999), Stoch (2001). The information provided here on the general geographical distribution pertains only to the European sites of the species.…”

“…The genus Thermocyclops was represented by only one species (Table 2). (Fischer, 1853) -it occurs in both pelagic and littoral zones of lakes (Mirabdullayev & Kuzmetov 1998). The species is widely distributed in Europe (De Jong et al 2014).…”