Male reproductive strategies in two species of spider crabs, Leurocyclus tuberculosus and Libinia spinosa

Pisani, Ximena González; Greco, Laura S. López

doi:10.1016/j.zool.2020.125847

Cited by 5 publications

(2 citation statements)

References 61 publications

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“…However, in Cracker Bay, Patagonia-Argentina (42°56′S 64°21′W), individuals from the same genus reproduce seasonally, mainly in periods with higher temperatures and food availability (González-Pisani, 2011). These results corroborate the latitudinal effect paradigm, which states that reproduction can be continuous in tropical regions (lower latitudes) due to constant environmental conditions that favour gonadal development, feeding and spawning, while in temperate regions at higher latitudes, reproduction is generally restricted to a few months due to resource limitation and temperature variation (Bauer, 1992).…”

Section: Discussionmentioning

confidence: 99%

Unveiling the dynamics of the spider crab Libinia ferreirae, through reproductive and population characteristics on the south-eastern coast of Brazil

et al. 2020

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We investigated the population dynamics of the spider crab Libinia ferreirae, focusing on the frequency distribution of individuals in size classes, sex ratio and the action of environmental variables (temperature, salinity, texture and organic matter content in the sediment) on reproduction and recruitment. Monthly collections were made in the Ubatuba region from January 1998 to December 2000. A total of 222 individuals were collected, including 123 juveniles (males and females), 43 adult males, 25 non-ovigerous adult females and 31 ovigerous females. Unlike most adult brachyurans, there was no significant size difference between sexes, and sexual dimorphism seems to be a varying characteristic for this crab genus. The reproductive period and recruitment were continuous with peaks that could be related to water mass dynamics and higher food availability in the Ubatuba region. In addition, our results increase knowledge about part of the life cycle of L. ferreirae, which could be useful for comparative studies.

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Section: Discussionmentioning

confidence: 99%

Unveiling the dynamics of the spider crab Libinia ferreirae, through reproductive and population characteristics on the south-eastern coast of Brazil

et al. 2020

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“…The mating behavior has been long studied in several decapod crustaceans (Bauer, 1996; Diesel, 1991; González Pisani & López Greco, 2020; Hartnoll, 1969; Pinheiro & Fransozo, 1999; Waddy & Aiken, 1990). However, this subject is poorly known for primitive crabs belonging to the Podotremata Guinot, 1977 (sensu Guinot & Tavares, 2001).…”

Section: Introductionmentioning

confidence: 99%

From copula to fertilization: The reproduction of primitive crabHypoconcha parasitica(Linnaeus, 1763) (Podotremata: Dromiidae)

Bento

Greco

Mantelatto

et al. 2022

The Anatomical Record

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This study describes the mating behavior of Hypoconcha parasitica under laboratory conditions highlighting the spermathecal morphology and focusing on the seminal fluid storage and release of spermatozoa. The pairs were kept in aquaria where the mating behavior was recorded and described. The spermathecae of the female were analyzed using scanning electron microscopy, X‐ray micro‐CT, histology, and histochemistry. No pre‐ or post‐copulatory mate guarding was observed in H. parasitica. The sperm transfer occurred with each pair maintaining the protection shield (bivalve shell) on their dorsum. The pair of spermathecae is covered exclusively by the cuticle, following the Podotremata pattern. Many muscle fiber bundles are attached to the cuticular wall facing toward the cephalothorax cavity, especially covering the lateral and slightly dorso‐anterior region toward the apodeme of Sternite 7. The spermathecal organization indicates that the process of sperm release during fertilization occurs through muscular action exerted by the female on the wall of the chamber. Thus, the musculature distribution in Hypoconchinae distinguishes them from described for other Podotremata such as Homolidae, which shows the musculature associated with the spermathecae aperture. Like the Homolidae, the first pleopod in H. parasitica seems to take part in the transfer/ movement of spermatozoa and oocytes between the sternum and abdomen, which forms a temporary chamber where fertilization occurs. In conclusion, the spermathecal morphology and associated structures bring new insights to the mechanisms involved in the sperm storage and fertilization of primitive crabs and how the Dromiidae spermatheca perform a new pattern among the poorly studied Podotremata.

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Mating strategies of the endangered insular land crabJohngarthia lagostoma(H. Milne Edwards, 1837)

João

Kriegler

Freire

et al. 2021

Invertebrate Reproduction & Development

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Male reproductive strategies in two species of spider crabs, Leurocyclus tuberculosus and Libinia spinosa

Cited by 5 publications

References 61 publications

Unveiling the dynamics of the spider crab Libinia ferreirae, through reproductive and population characteristics on the south-eastern coast of Brazil

Unveiling the dynamics of the spider crab Libinia ferreirae, through reproductive and population characteristics on the south-eastern coast of Brazil

From copula to fertilization: The reproduction of primitive crabHypoconcha parasitica(Linnaeus, 1763) (Podotremata: Dromiidae)

Mating strategies of the endangered insular land crabJohngarthia lagostoma(H. Milne Edwards, 1837)

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