A Histological Study of Ovarian Development in the Giant Red Shrimp Aristaeomorpha foliacea (Crustacea: Decapoda: Aristeidae) from the Southern Tyrrhenian Sea (Western Mediterranean)

被引:16
作者
Perdichizzi, Anna [1 ]
Pirrera, Laura [1 ]
Micale, Valeria [1 ]
Muglia, Ugo [2 ]
Rinelli, Paola [1 ]
机构
[1] CNR, Inst Coastal Marine Environm IAMC CNR, I-98122 Messina, Italy
[2] Univ Messina, Fac Vet Med, Dept Morphol Biochem Physiol & Anim Prod, I-98168 Messina, Italy
关键词
SEXUAL-MATURITY; RISSO; BIOLOGY; GROWTH;
D O I
10.1100/2012/289608
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The reproductive features of the giant red shrimp, Aristaeomorpha foliacea, were investigated in the southern Tyrrhenian sea by experimental trawl sampling. The annual length-frequency distribution showed a multimodal trend in females, ranging between 16 and 67 mm carapace length (CL), and a unimodal trend in males (18-45mm CL). Mature males occurred in different proportions all year round, while females displayed seasonal maturity (June-September), with a peak in July. Six oocyte developmental stages were identified, the most advanced of which (Pv, postvitellogenic) had never been described before in this species. Ovary development followed a group-synchronous pattern, with the yolked oocyte stock clearly separated from the reservoir of unyolked oocytes, suggesting that A. foliacea is a total spawner, with determinate fecundity. Based upon histological findings, a revision of macroscopic maturity staging employed in Mediterranean bottom trawl surveys (MEDITS) is proposed.
引用
收藏
页数:9
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