Spatial distribution and population dynamics of Callichirus major (Crustacea, Callianassidae) in a tropical sandy beach, northeastern Brazil

Rosa, Leonardo Cruz da; Freire, Kátia Meirelles Felizola; Souza, Miller J. M.

doi:10.1111/ivb.12228

Cited by 13 publications

(2 citation statements)

References 25 publications

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“…However, relative growth of the cheliped length in males had a positive allometric pattern in both ontogenetic phases, independent of the article considered (carpus or propodus). This pattern differed from C. garthi, in which the PL grew more in adults (Hernáez and Wehrtmann 2007), a fact that was unfortunately not evaluated by us or other studies on C. major (Alves-Júnior et al 2014, Rosa et al 2018. In females of C. major, the relative growth pattern did not differ between biometric relationships involving the propodus or carpus of the cheliped as a dependent variable.…”

Section: Discussioncontrasting

confidence: 57%

Relative growth, sexual maturity and handedness in the ghost shrimp Callichirus major (Decapoda: Callianassidae) from the southwestern Atlantic

2019

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Biometric studies provide valuable information about changes associated with the growth and sexual maturity of living organisms. We analysed sexual dimorphism, allometric growth, sexual maturity and handedness in the ghost shrimp Callichirus major at Gonzaga beach, Brazil, where the catches of this species have been prohibited since 1992. To this end, a total of 544 individuals of C. major were collected during 12 months of sampling. Males were significantly smaller than females, denoting sexual dimorphism with respect to body size. The analysis of allometric growth between chelar carpus length and carapace length (CL) revealed a positive allometric relationship in juveniles of both sexes and adult males, but a negative allometry in adult females. Overall, our results showed the existence of two main growth phases related to sexual maturity, with a similar transition point for males (15.0 mm CL) and females (16.0 mm CL). Heterochely and homochely were registered in shrimp from both sexes, but in males heterochely occurred to a higher degree and was predominant (86.9%), whereas in females homochely was slightly more frequent (59.3%). The consequences of sexual dimorphism in terms of body size and chelipeds in the mating system of C. major are discussed in this study.

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Section: Discussioncontrasting

confidence: 57%

Relative growth, sexual maturity and handedness in the ghost shrimp Callichirus major (Decapoda: Callianassidae) from the southwestern Atlantic

2019

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“…Durante o período chuvoso, o aumento da descarga fluvial resulta em um aumento na quantidade de matéria orgânica em suspensão e de nutrientes na zona costeira, favorecendo assim no aumento na produtividade primária. A esse aumento na disponibilidade de alimento durante o período chuvoso tem se atribuído o recrutamento e o aumento na densidade de Callichirus major na praia da Aruanda (Rosa et al, 2018). Nesse sentido, mudanças temporais na estrutura da macrofauna, como um aumento na abundância e no número de espécies sejam passiveis de serem observadas em decorrência da variação sazonal na disponibilidade de alimento nas praias do litoral sergipano e devem ser consideradas em trabalhos futuros.…”

Section: Discussionunclassified

Macroinfauna Intermareal Das Praias Arenosas Do Litoral De Aracaju, Sergipe, Região Nordeste Do Brasil = Intertidal Macroinfauna of the Aracaju Sandy Beaches, Sergipe, Northeastern Brazil

Rosa

2021

Bol. Lab. Hidrobiol.

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Praias arenosas são ambientes altamente dinâmicos que abrigam uma rica fauna adaptada às condições de instabilidade dos sedimentos. Nesse estudo, a estrutura e a composição da macrofauna de quatro praias arenosas do litoral de Aracaju (Sergipe, NE do Brasil) foram analisadas. As praias foram classificadas, em sua maioria, como dissipativas. O número total de espécies variou entre 14 e 17 espécies, enquanto que a densidade média total variou entre 65,50±9,29 e 169,50±30,52 indivíduos/m², sendo o bivalve Donax gemmula e os poliquetas Hemipodia californiensis e Orbinia sp. as espécies mais abundantes. Diferenças observadas na macrofauna provavelmente refletem os diferentes graus de urbanização e/ou intensidade de uso das praias analisadas. Quando comparado com outras praias do litoral sudeste e sul do Brasil, os valores de riqueza de espécies foram semelhantes, no entanto, os valores de densidade foram extremamente baixos, corroborando com o padrão latitudinal o qual prediz uma redução na abundância das espécies de zonas temperadas em direção à zona tropical.ABSTRACTSandy beaches are highly dynamics environments which harbor a rich fauna adapted to sediment instability. In this study, the number of species and the density of the intertidal macrofauna of the four sandy beaches of the Aracaju coast (Sergipe, NE Brazil) were analyzed. The beaches were classified as dissipative. The number of species ranged from 14 to 17 species, whereas total density ranged from 65.50±9.29 to 169.50±30.52 individuals/m². The bivalve Donax gemmula and the polychaete Hemipodia californiensis and Orbinia sp. were the most abundant species. Observed differences in the intertidal macrofauna probably reflect the different urbanization levels and/or intensity of use of the analyzed beaches. When compared to others beaches of the southern/south region of the Brazil, the number of species values were quite similar. However, density values were extremely lower, corroborating with previous latitudinal patterns, where decrease in the macrofauna abundance from temperate to tropical beaches are expected.

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Population Biology

Petracco,

Corte,

Aviz

et al. 2023

Brazilian Marine Biodiversity

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Spatial distribution and population dynamics of Callichirus major (Crustacea, Callianassidae) in a tropical sandy beach, northeastern Brazil

Abstract: Callichirus major is a callianassid shrimp widely used as live bait by Brazilian recreational fishers. Here, we present information about spatial distribution and population dynamics of C. major based upon both the number of burrow openings and the number of speci-

Cited by 13 publications

References 25 publications

Relative growth, sexual maturity and handedness in the ghost shrimp <em>Callichirus major</em> (Decapoda: Callianassidae) from the southwestern Atlantic

Relative growth, sexual maturity and handedness in the ghost shrimp <em>Callichirus major</em> (Decapoda: Callianassidae) from the southwestern Atlantic

Macroinfauna Intermareal Das Praias Arenosas Do Litoral De Aracaju, Sergipe, Região Nordeste Do Brasil = Intertidal Macroinfauna of the Aracaju Sandy Beaches, Sergipe, Northeastern Brazil

Population Biology

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