Naslov
Growth and reproduction of Munida rutllanti (Decapoda: Anomura: Galatheidae) and impact of parasitism by Pleurocrypta sp (Isopoda: Bopyridae) in the Adriatic Sea
(Growth and reproduction of Munida rutllanti Zariquiey Alvarez, 1952 (Decapoda: Anomura: Galatheidae) and impact of parasitism by Pleurocrypta sp. (Isopoda: Bopyridae) in the Adriatic Sea)

Autori
Petrić, Mirela ; Ferri, Josipa ; Mladineo, Ivona

Izvornik
Journal of the Marine Biological Association of the United Kingdom (0025-3154) 90 (2010), 7; 1395-1404

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Munida rutllanti ; relative growth ; reproduction ; Pleurocrypta sp. ; parasitic castration

Sažetak
Relative growth and reproductive biology of Munida rutllanti were investigated for the first time in the Adriatic Sea. A total of 938 individuals were analyzed. Sex ratio differed statistically from the expected 1:1. Six individuals exhibited secondary sex characteristics of both males and females. Carapace length of males ranged from 10.5 to 21.5 mm, while in females it ranged from 11.2 to 19.4 mm. Sexual dimorphism was observed in seven morphometric characters. Ovigerous females were first observed in summer and later in autumn with higher frequency. Realized fecundity showed wide variation (273-3250 eggs) and positive correlation between the brood and female size. An epicaridean isopod Pleurocrypta sp., parasitizing the gill chamber of both sexes was isolated and its effect on the oogenesis was studied by histological examination of host reproductive system. Growth inhibition, modification of secondary sex characteristics, as well as retardation of oogenesis and failure of oviposition, are repercussions of bopyrid infestation. Given the small prevalence (7.85%) of the bopyrid in M. rutllanti Adriatic population, we assume that for the moment there is no severe effect on the hosts population dynamic.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Veterinarska medicina

POVEZANOST RADA