Conspecific cues affect stage-specific molting frequency, survival, and claw morphology of early juvenile stages of the shore crab Carcinus maenas

Duarte, Rafael Cervantes; Re, Ana Denisse; Flores, Augusto A. V.; Queiroga, Henrique

doi:10.1007/s10750-013-1712-5

Cited by 8 publications

(7 citation statements)

References 64 publications

(67 reference statements)

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“…Conspecific cues affect stage‐specific molting frequency, survival, and claw morphology of early juvenile stages of the shore crab Carcinus maenas (Duarte et al., )…”

Section: Latin America: a Living Laboratory For Evo‐devo Researchmentioning

confidence: 99%

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

et al. 2016

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Famous for its blind cavefish and Darwin's finches, Latin America is home to some of the richest biodiversity hotspots of our planet. The Latin American fauna and flora inspired and captivated naturalists from the nineteenth and twentieth centuries, including such notable pioneers such as Fritz Müller, Florentino Ameghino, and Léon Croizat who made a significant contribution to the study of embryology and evolutionary thinking. But, what are the historical and present contributions of the Latin American scientific community to Evo-Devo? Here, we provide the first comprehensive overview of the Evo-Devo laboratories based in Latin America and describe current lines of research based on endemic species, focusing on body plans and patterning, systematics, physiology, computational modeling approaches, ecology, and domestication. Literature searches reveal that Evo-Devo in Latin America is still in its early days; while showing encouraging indicators of productivity, it has not stabilized yet, because it relies on few and sparsely distributed laboratories. Coping with the rapid changes in national scientific policies and contributing to solve social and health issues specific to each region are among the main challenges faced by Latin American researchers. The 2015 inaugural meeting of the Pan-American Society for Evolutionary Developmental Biology played a pivotal role in bringing together Latin American researchers eager to initiate and consolidate regional and worldwide collaborative networks. Such networks will undoubtedly advance research on the extremely high genetic and phenotypic biodiversity of Latin America, bound to be an almost infinite source of amazement and fascinating findings for the Evo-Devo community.

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“…Conspecific cues affect stage‐specific molting frequency, survival, and claw morphology of early juvenile stages of the shore crab Carcinus maenas (Duarte et al., )…”

Section: Latin America: a Living Laboratory For Evo‐devo Researchmentioning

confidence: 99%

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

et al. 2016

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“…Indeed, marine invertebrates with complex life cycles often inhabit contrasting environments in their larval and adult forms, and shift dramatically from a pelagic to a benthic environment (e.g., Torres et al, 2021 and references therein). This change results in multiple potential drivers of inter-individual variability throughout their life cycle, thus highlighting the role of marine invertebrates with this type of development as model species to assess phenotypic variability throughout ontogeny (Duarte et al, 2014;Torres et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Inter-individual variability of early life stages of a model marine invertebrate with a bi-phasic life cycle is shaped by contrasting oceanographic conditions

Leal

Rey²,

Ferreira³

et al. 2022

Front. Mar. Sci.

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Inter-individual variability plays a key role in species resilience. This, however, is difficult to assess in marine invertebrates with complex life cycles due to the inherent difficulty of sampling individuals in oceanic environments throughout their ontogeny. This study monitored the effect of contrasting oceanographic conditions, namely downwelling and upwelling, on the inter-variability of embryos and megalopae (the final larval stage) of the model brachyuran crab Carcinus maenas. We assessed i) the heterogeneity of energetic reserves, biomass, elemental composition, and isotopic niche in these early life stages, and ii) the effect of oceanographic conditions (up- and downwelling) on inter-individual variability. Indeed, organisms developing during downwelling consistently exhibited a higher heterogeneity than those developing during upwelling. While this finding suggests a higher resilience during downwelling, the overall condition of individuals was better during upwelling (i.e., higher C:N), irrespective of the developmental stage. Altogether, our data suggests that trophic history experienced under contrasting oceanographic conditions shape the plasticity of C. maenas populations and cascades over different life stages.

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“…Barría et al , 2011; Hepp et al , 2012; Marchiori et al , 2015). Silva & Paula (2008) used the format of the chela as a means of comparison between Brachyura; Silva et al (2010) observed population differentiation of Carcinus maenas ; Buckup & Rossi (1977) and Duarte et al (2014) used geometric morphometrics for differences in claw shape showing the effect of exposure to adult conspecific cues and early heterochely; Alencar et al (2014) and Marochi et al (2016) analysed the sexual dimorphism of the mangrove crab Ucides cordatus and the Hepatus pudibundus , respectively; and Fujiwara & Kawai (2016) studied the mechanical advantages of pinching and disarticulation of the chela. However, there is a lack of information in many genera and families, including changes during the growth.…”

Section: Introductionmentioning

confidence: 99%

Ontogenetic trajectories in Callinectes danae (Crustacea: Brachyura): sex and age polymorphism

Shinozaki-Mendes

Lessa

2017

J. Mar. Biol. Ass.

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We analysed the morphological variations through geometric morphometric approaches of the dorsal and ventral views of growing male and female Callinectes danae Smith 1869, based on the hypothesis that swimming crabs present polymorphism during growth. Our research identified six instars for females, seven instars for males and one instar for unsexed individuals (young). The sixth instar of females and the seventh instar of males were composed of adults. We identified 20 landmarks from the dorsal view, and 16 landmarks from the ventral view. Based on canonical analysis and Procrustes distance, we observed the formation of clearly separated instars (both views), indicating a significant change during ontogeny, not only in the pubertal moult. The most prevalent changes occurred in the abdomen, with males thinning and females broadening the abdomen during growth. In the dorsal view, we observed a displacement of anterolateral spines to the posterior region throughout the growth period and that the anterolateral and frontal teeth of juveniles were more ornate than those of adults. The ontogenetic trajectories for males and females have similar origins and follow different directions over the instars, with maximum distance after the pubertal moult (P < 0.05).

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Conspecific cues affect stage-specific molting frequency, survival, and claw morphology of early juvenile stages of the shore crab Carcinus maenas

Cited by 8 publications

References 64 publications

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

Inter-individual variability of early life stages of a model marine invertebrate with a bi-phasic life cycle is shaped by contrasting oceanographic conditions

Ontogenetic trajectories in Callinectes danae (Crustacea: Brachyura): sex and age polymorphism

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