Skoči na glavni sadržaj

Izvorni znanstveni članak

Growth rate and molt cycle of adriatic spiny lobster (P. elephas) maintained in controlled conditions

Alen Slavica ; Katedra za biologiju, patologiju i uzgoj divljači, Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, 10 000 Zagreb
Zdravko Janicki ; Katedra za biologiju, patologiju i uzgoj divljači, Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, 10 000 Zagreb
Dean Konjević ; Katedra za biologiju, patologiju i uzgoj divljači, Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, 10 000 Zagreb
Krešimir Severin ; Katedra za biologiju, patologiju i uzgoj divljači, Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, 10 000 Zagreb


Puni tekst: hrvatski pdf 294 Kb

str. 36-39

preuzimanja: 1.941

citiraj


Sažetak

During period of two years growth rate and molt frequency of sub-adult Adriatic spiny lobsters (Palinurus elephas) maintained in controlled condition were recorded. All specimens (154) in experiment showed rhythmic molt cycle, in a manner that majority of tested lobsters (90.4 %) have molt twice a year – in spring and autumn period. No significant difference in growth rate and molt rhythm between specimens of opposite sex was observed before first sexual maturity, but sexually matured females showed lower growth rate than sexually matured males. During each molt length growth of sub-adult lobsters was in average 2.0 to 2.5 cm, what imply that average yearly growth rate was between 4 and 5 cm. According to fact that first sexual maturity of spiny lobsters in Adriatic was recorded at total length (TL) of 21 cm minimum, it is obvious that Adriatic spiny lobsters need at least four years to reach the length of first sexual maturity. All studied lobsters manifested two types of sexual maturity – physiological and functional, and in most specimens (87.5 %) physiological sexual maturity (spring molt) has shown half a year earlier than functional sexual maturity (autumn molt).

Ključne riječi

lobster; growth rate; first sexual maturity

Hrčak ID:

21214

URI

https://hrcak.srce.hr/21214

Datum izdavanja:

15.7.2004.

Podaci na drugim jezicima: hrvatski

Posjeta: 3.173 *