Palabras claves: Abundance, Caspian Sea, Kazakhstan, marine mammals, Mark-recapture, Pinniped, Russian federation, Strip survey
Autores: Baimukanov M., Bignert A., Dmitrieva L., Härkönen T., Jüssi I., Jüssi M., Kasimbekov Y., Simon J. Goodman, Verevkin M., Vysotskiy V., Wilson S.C.