Fecundity and reproductive output of the caridean shrimp Periclimenes paivai associated with scyphozoan jellyfish

Abstract

Periclimenes paivai is notable for its symbiotic lifestyle with jellyfish. The objective of this study was to investigate the fecundity and reproductive output of females, and specifically to determine whether females protected in their host have a greater reproductive success than other shrimp species. All anatomical parts of the medusae were analyzed and the P. paivai individuals were separated. Among 83 females analyzed, 65 presented embryos in the first developmental stage, and 18 were in the final stage of development. The mean fecundity was 229.08 ± 120.04 in initial-stage embryos and 191 ± 114.76 in final-stage embryos. We observed a positive relationship between the embryo number and the female size; however, the embryo number was not related to the embryonic stage, which indicates that females did not lose their embryos during the incubation period. The weight of brood mass during production is closely related to the female weight according to the results of linear regression, as fecundity increased with female size. In its symbiosis, P. paivai can increase the amount of energy used to produce embryos (mean reproductive output = 10.38%) and can elevate the reproductive success.

Reproductive biology of the shrimp Palaemon northropi (Rankin, 1898) (Caridea: Palaemonidae) from an estuary in the Brazilian northeastern

“…In addition, we verified in the present study that the body size (carapace length) of P. northropi females is positively related to fecundity. This pattern agrees with studies on other caridean shrimp (e.g., [39,48,49]). In this sense, a relationship between brood and female size suggests that selective forces or constraints act on the reproductive output of the species [8,50,51].…”

“…The mean embryos volume was similar to that in a population of P. northropi studied by Corey & Reid (1991) [44] and to other species of Palaemon, such as P. gravieri [12] and P. longirostris [2] ( Table 1). On the other hand, the embryo volume was higher compared to other Paleomonidae shrimp, such as Cuapetes americanus (Kingsley, 1878) [62] and shrimp of the genus Periclimenes (Costa, 1844) [44,49,57,63]. Differences in embryo volume may be related to differences in the environmental conditions, particularly salinity, of the species' habitats [64].…”

Population structure and fecundity of <i>Upogebia omissa</i> (Decapoda: Gebiidea: Upogebiidae) in an estuarine region in Sergipe, northeastern Brazil

“…In addition, this increase on the body size also contribute to a better accommodation of the ovary and egg carrying in shrimps for the Gebiidea and Axiidea infraorders (formerly belonging to the Thalassinidea infraorder) (Robles et al 2009;Poore et al 2016). Furthermore, the body size of females is positively related to its fecundity (Bauer & Martin 1991;Pandian 2016;Moraes et al 2017), a pattern that is corroborated by studies regarding the fecundity in species of genus Upogebia (Hill 1977;Dumbauld et al 1996;Yamasaki et al 2010), as well as in the results observed for U. omissa in the present study.…”

Real‐time imaging and developmental biochemistry analysis during embryogenesis of Caridina pseudogracilirostris

“…The egg size was smaller when compared with other larger decapod species, like Macrobrachium nipponese (Zhao et al, 2007). The fecundity rate of C. pseudogracilirostris was 100 ± 30 to 300 ± 50 which was similar with Periclimenes paivai 229.08 ± 120.04 (De Moraes et al, 2017) and very low when compared with other species like Macrobrachium vollenhovenii (Sintondji et al, 2019), where a single female can produce about 83,000 eggs.…”