Estimating population features of the anomuran crab<i>Petrolisthes armatus</i>(Porcellanidae) in a remaining and impacted mangrove area of the western Atlantic

Miranda, Ivana; Mantelatto, Fernando L.

doi:10.1080/00222930903094613

Cited by 22 publications

(33 citation statements)

References 34 publications

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“…The continuous presence of individuals in all size classes in the bimonthly size-class frequency distribution (except in September, 2005 and2006) is a strong argument against the hypothesis of catastrophic mortality (DÍAZ & CONDE, 1989). Considering that the present study has provided no information about behavioral and mortality differences between sexes, the bimodal condition could be explained by the intensive settlement in certain periods (MANTELATTO & SOUSA, 2000;MIRANDA & MANTELATTO, 2009). Considering the symbiotic lifestyle and that A. aidae is not monogamous (D. F. Peiró, J.…”

Section: Discussionmentioning

confidence: 85%

“…Austinixa aidae (Righi, 1967). Size frequencies' distribution (CW = carapace width) of individuals collected inside Callichirus major galleries at Perequê-açu beach, Ubatuba/SP, Brazil, from May to November, 2006. in environmental factors, with fall variations during the year and, in some cases, no correlation can be detected (AYRES-PERES & MANTELATTO, 2008;MIRANDA & MANTELATTO, 2009).…”

Section: Discussionmentioning

confidence: 97%

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Population dynamics of the pea crab Austinixa aidae (Brachyura, Pinnotheridae): a symbiotic of the ghost shrimp Callichirus major (Thalassinidea, Callianassidae) from the southwestern Atlantic

Peirò

Mantelatto

2011

Iheringia, Sér. Zool.

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The Pinnotheridae family is one of the most diverse and complex groups of brachyuran crabs, many of them symbionts of a wide variety of invertebrates. The present study describes the population dynamics of the pea crab Austinixa aidae (Righi, 1967), a symbiont associated with the burrows of the ghost shrimp Callichirus major (Say, 1818). Individuals (n = 588) were collected bimonthly from May, 2005 to September, 2006 along a sandy beach in the southwestern Atlantic, state of São Paulo, Brazil. Our data indicated that the population demography of A. aidae was characterized by a bimodal size-frequency distribution (between 2.0 and 4.0 mm and between 8.0 and 9.0 mm CW) that remained similar throughout the study period. Sex ratio does not differ significantly from 1:1 (p > 0.05), which confirms the pattern observed in other symbiontic pinnotherids. Density values (1.72 ± 1.34 ind. • ap.-1) are in agreement with those found for other species of the genus. The mean symbiosis incidence (75.6%) was one of the highest among species of the Pinnotheridae family, but it was the lowest among the three studied species of the genus. Recruitment pattern was annual, beginning in May and peaking in July, in both years, after the peak of ovigerous females in the population (from March to May). Our findings describe ecological and biological aspects of A. aidae similar to those of other species of this genus, even from different geographic localities.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 97%

Population dynamics of the pea crab Austinixa aidae (Brachyura, Pinnotheridae): a symbiotic of the ghost shrimp Callichirus major (Thalassinidea, Callianassidae) from the southwestern Atlantic

Peirò

Mantelatto

2011

Iheringia, Sér. Zool.

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“…The porcellanid crab P. armatus reproduces continuously in both study sites (Costa Rica: Díaz-Ferguson and VargasZamora 2001;Brazil: Oliveira and Masunari 1995;Miranda and Mantelatto 2009). Therefore, a concentrated effort to collect females during a relatively reduced time period is an adequate method to obtain representative data regarding reproductive features (Litulo et al 2005).…”

Section: Discussionmentioning

confidence: 95%

“…data). It might be speculated that the low RO for the Brazilian population, living in an environment frequently disturbed by human-produced pollutants (Vergamini and Mantelatto 2008;Miranda and Mantelatto 2009), represents a reproductive adaptation to cope with possible environment impacts. Our data from the Costa Rica population concerning egg volume of P. armatus are in agreement with those reported for the same species in Florida and Panama (Table 4).…”

Section: Discussionmentioning

confidence: 99%

Reproductive plasticity in Petrolisthes armatus (Anomura, Porcellanidae): a comparison between a Pacific and an Atlantic population

et al. 2011

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The porcellanid crab Petrolisthes armatus, with a known geographic distribution covering a wide range of latitudes, was selected to conduct a comparative study on egg production and reproductive output between two populations from Pacific and Atlantic coasts. Ovigerous females were collected between September and November 2005 in Punta Morales, Pacific coast of Costa Rica (n = 137) and from March 2005 to July 2006 in Araçá region, São Paulo, Brazil (n = 46). The mean size of females was statistically different between both populations with larger females from Brazil than Costa Rica (7.9 ± 1.31 and 6.6 ± 0.95 mm CW, respectively). Likewise, egg production was significantly different in both populations and started in Pacific Costa Rica at a smaller female size than in Brazil. Specimens from Pacific Costa Rica produced roughly three times more eggs than equally sized females from Brazil, while newly extruded embryos were larger in Brazil than in Costa Rica (0.045 and 0.039 mm 3 , respectively). Egg volume increased during embryogenesis by 112.8 and 164.5% in Costa Rican and Brazilian populations, respectively. The egg water content increased steadily in both populations; however, eggs produced in Brazil contained always more water than those from the same developmental stage in Costa Rica. Average reproductive output (based on dry weight) was substantially lower in Brazil (0.031) than in Costa Rica (0.065). Our results confirm an impressive intraspecific plasticity of reproductive features in an intertidal decapod. The observed phenotypical variability might be related to local environmental conditions as well as to the location of the studied population concerning its geographic range of distribution.

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“…Segundo Rieger & D'Incao (1991), a ocorrên-cia das larvas de decápodes depende da duração do período de reprodução da população adulta. Nas regiões tropicais e subtropicais a maioria das espécies de decápodes tem reprodução continua ao longo do ano, com picos de maior intensidade reprodutiva em alguns períodos, evidenciada, por exemplo, pelos picos de densidade larval (Koettker & Freire, 2006), ou pela frequência de fêmeas ovígeras nas comunidades bentônicas (Sant'anna et al, 2009;Miranda & Mantelatto, 2009). E m b o r a a e s t r u t u r a p o p u l a c i o n a l d e Porcellanidae seja desconhecida para o estuário do Rio Caeté, os dois picos gerais de abundância das larvas (um na seca em junho/00, outro na chuvosa em novembro/00 e outubro/00), mostram intensos períodos de recrutamento no final do período chuvoso e no final do período seco.…”

Section: Discussionunclassified

Abundância das larvas de Porcellanidae (Decapoda, Anomura) no meroplâncton do estuário do Rio Caeté, estuário amazônico brasileiro

Carvalho¹,

Nevis²,

Oliveira³

et al. 2014

Braz. J. Aquat. Sci. Technol.

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The life cycle of these species includes only two zoeal stages, which are distinctive by their very elongate rostral and posterolateral carapace spines, and are commonly found in estuarine meroplanktonic samples. The present study provides information about the abundance of porcellanid larvae at an estuarine system in the Amazon coastal zone, aiming to understand their distribution in relation to some physicochemical variables: seasonal, diel, tidal and lunar cycles, temperature and salinity. Samples were collected monthly from April 2000 to April 2001 with a plankton conical net with 300μm of mesh size, by horizontal hauls, in the Caeté River estuary, Pará, Brazil. Only zoeal stages of porcellanid larvae were found. In general, their abundance was greater in dry season (8.08±11.43 larvae.m -3 ) in relation to rainy season (0.99±3.13 larvae.m -3 ), and flood tide (7.52±11.40 larvae.m -3 ) in relation to ebb tide (1.11±2.14 larvae.m -3 ). Greater densities were also registered at higher degrees of salinity. The other variables, moon phases, diel cycle and temperature, had not a significant influence on porcellanid larval abundance in the Caeté River estuary.

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Estimating population features of the anomuran crabPetrolisthes armatus(Porcellanidae) in a remaining and impacted mangrove area of the western Atlantic

Cited by 22 publications

References 34 publications

Population dynamics of the pea crab Austinixa aidae (Brachyura, Pinnotheridae): a symbiotic of the ghost shrimp Callichirus major (Thalassinidea, Callianassidae) from the southwestern Atlantic

Population dynamics of the pea crab Austinixa aidae (Brachyura, Pinnotheridae): a symbiotic of the ghost shrimp Callichirus major (Thalassinidea, Callianassidae) from the southwestern Atlantic

Reproductive plasticity in Petrolisthes armatus (Anomura, Porcellanidae): a comparison between a Pacific and an Atlantic population

Abundância das larvas de Porcellanidae (Decapoda, Anomura) no meroplâncton do estuário do Rio Caeté, estuário amazônico brasileiro

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