Pregled bibliografske jedinice broj: 269576
Characteristics of the stone crayfish (Austropotamobius torrentium Schrank) population from the Mrzlak Stream on the Medvednica Mountain, Croatia
Characteristics of the stone crayfish (Austropotamobius torrentium Schrank) population from the Mrzlak Stream on the Medvednica Mountain, Croatia // Abstract Proceedings IAA 16 / Furse, James (ur.).
Lahti: Griffith University, 2006. str. 28-28 (poster, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Characteristics of the stone crayfish (Austropotamobius torrentium Schrank) population from the Mrzlak Stream on the Medvednica Mountain, Croatia
Autori
Lucić, Andreja ; Buhin, Josip ; Lajtner, Jasna ; Erben, Radovan
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Abstract Proceedings IAA 16
/ Furse, James - Lahti : Griffith University, 2006, 28-28
Skup
The Sixteenth Biennial Symposium of the International Association of Astacology
Mjesto i datum
Gold Coast, Australija, 30.07.2006. - 04.08.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
stone crayfish; Austropotamobius torrentium; population size; morphometry
Sažetak
The stone crayfish Austropotamobius torrentium (Schrank, 1803) is one of four native European crayfish species living in Croatian freshwaters. This species lives mostly in running waters at higher altitudes. The Mrzlak Stream belongs to the Sava River basin, and is located at southern slopes of the Medvednica Mountain, northwest Croatia. Stone crayfish were caught by hand and hand made baited traps that were set in the stream monthly, from April 2005 until May 2006. During the sampling period we caught 414 crayfish of which 224 males and 190 females. For each trapped crayfish sex, reproductive and molting stage as well as weight and 12 morphometrical characteristics were recorded. Crayfish were individually marked by piercing holes into the uropods and/or telson and then released. Year cycle and size structure of the stone crayfish population in the Mrzlak Stream were described. Population size was estimated by mark-recapture methods (Schnabel method, Schumacher and Eschmeyer method). Positive correlation was found between weight and length of crayfish. Males and females differed statistically significant in weight and claw size. As the Mrzlak Stream is located in the area of the Nature Park Medvednica results obtained in this research would be used in protection management plans.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
