Laith A. Jawad,^* Ilya I. Gordeev,^** Rafael Bañón,^*** Peter H. Frey,^**** Alexei M. Orlov<sup>*****


*</sup>Laith A. Jawad, School of Environmental and Animal Sciences, Unitec Institute of Technology, 139 Carrington Road, Mt Albert, Auckland 1025, New Zealand; E-mail: laith_jawad@hotmail.com.
^**Ilya I. Gordeev, Russian Federal Research Institute of Fisheries and Oceanography, 17, V. Krasnoselskaya, Moscow, 107140, Russia; Lomovosov Moscow State University, 1, Kolmogorova Str., Moscow, 119991, Russia.
^***Rafael Bañón, H Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas, IIM-CSIC, c/ Eduardo Cabello 6, 36208 Vigo, Pontevedra, Spain.
^****Peter H. Frey, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 2725 Montlake Boulevard East, Seattle, WA, 98112, USA.
^*****Alexei M. Orlov, Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nakhimovsky Prospekt, Moscow, 117218, Russia; Russian Federal Research Institute of Fisheries and Oceanography, 17, V. Krasnoselskaya, Moscow, 107140, Russia; Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 32, Leninsky Prospekt, Moscow, 119071 Russia; Dagestan State University, 43a, Gadzhieva Str., Makhachkala, 367008, Russia; Tomsk State University, 36, Prospekt Lenina, Tomsk, 634050 Russia; Caspian Institute of Biological Resources, Dagestan Federal Research Center, Russian Academy of Sciences, 45, Gadzhieva Str., Makhachkala, 367023 Russia.