Reproductive biology of<i>Palaemon pandaliformis</i>(Stimpson, 1871) (Crustacea, Decapoda, Caridea) from two estuaries in southeastern Brazil

Mortari, Rafael Campaneli; Pralon, Bruno Gabriel Nunes; Negreiros-Fransozo, Maria Lúcia

doi:10.1080/07924259.2009.9652308

Cited by 13 publications

(18 citation statements)

References 30 publications

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“…Two peaks were registered: the first in summer (secondary) and the second in winter (main peak). The first peak coincides with results of the studies conducted by Mossolin & Bueno (2002), Fransozo et al (2004), Mortari et al (2009), Mossolin et al (2013), andBertini et al (2014) in the state of São Paulo, Brazil. These authors observed a growing trend in the occurrence of ovigerous females of different Palaemonidae species during summer only (i.e.…”

Section: Reproductionsupporting

confidence: 64%

“…However, Wilson & pianka (1963) stated that sexual proportions can be biased due to a series of factors (e.g., behaviour, migration, mortality and growth rates), which eventually cause a significant deviation in the sex ratio of a population. The results obtained here differ significantly from those presented by lima & oshiro (2002) and Mortari et al (2009), who studied estuarine populations of P. pandaliformis from rivers of Rio de Janeiro and São Paulo (southeastern Brazil) and recorded sex ratios of 1:1.57 and 1:1.19 -1:1.34, respectively, which indicates a slight significant predominance of females. Rosa et al (2015) also recorded a high predominance of females (1:5.7) in a subtropical salt marsh in southern Brazil (state of Paraná).…”

Section: Reproductioncontrasting

confidence: 56%

“…In this study, P. pandaliformis also showed this pattern (see Figs. 5-6 and 9), as observed by Lima & Oshiro (2002) in river Sahy (Rio de Janeiro, Brazil) and Mortari et al (2009) in river Ubatumirim (São Paulo, Brazil).…”

Section: Reproductionmentioning

confidence: 81%

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Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

Paschoal¹,

Guimarães²,

Couto³

2016

Zoologia (Curitiba)

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Section: Reproductionsupporting

confidence: 64%

Section: Reproductioncontrasting

confidence: 56%

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Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

Paschoal¹,

Guimarães²,

Couto³

2016

Zoologia (Curitiba)

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“…Paschoal et al (2013) suggest that palaemonids seek locations with sufficient organic matter for food and as refuge to avoid fish predation. The high abundance of Palaemon in these headwater reaches is related to their detritivorous feeding (Campaneli et al 2009), a role shared with Xiphocaris (Crowl et al 2001). Xiphocaris elongata process leaves and produces fine, medium and coarse particulates that can be used by filter-feeding species (Crowl et al 2001).…”

Section: Discussionmentioning

confidence: 98%

“…These observations are consistent with the results of an exclusion experiment developed in artificial streams of Puerto Rico, where P. pandaliformis displaced individuals of X. elongata and M. faustinum when they were in the same cage; neither Xiphocaris nor M. faustinum exhibited this behavior when they were interacting in the same location. Palaemon pandaliformis is a shrimp species from lowlands and shallow aquatic systems that is tolerant of changes in salinity and water flows in estuaries (Campaneli et al 2009). …”

Section: Discussionmentioning

confidence: 99%

Comparison of decapod communities across an urban-forest land use gradient in Puerto Rican streams

2015

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Urbanization influences a range of factors related to stream health, including the hydrologic regime, water quality, and riparian conditions that lead to negative effects on terrestrial and aquatic ecosystems. However, impacts on freshwater decapods from urbanization of tropical streams have not been reported. We hypothesized that changes in decapod communities in watersheds with different levels of urbanization are related to changes in physical stream habitats caused by different land uses and their effects on water discharge. The impacts of land use on the physico-chemical characteristics of streams and freshwater decapod communities were evaluated in three watersheds characterized by low, moderate and highintensities of urbanization in Puerto Rico. For the low and moderately developed urban watersheds, decapod species richness ranged from 10 to 11 species; the highly urbanized watershed only had 4 species. Macrobrachium faustinum and Xiphocaris elongata were the most ubiquitously species and were found in all watersheds. Multivariable analysis of physical characteristics and densities of the decapod families resulted in one axis that explained 80 % of the total variation among the watersheds and was correlated with stream discharge. The effect of discharge is likely a result of frequent high flows that sustain habitats with high concentrations of dissolved oxygen and low concentrations of pollutants. An increase in physicochemical parameters were observed from the LUW to the HUW. These results indicate that the decapod communities were most likely influenced by land use and environmental conditions that affected erosional aspects related to water discharge and water quality in the highly impacted watersheds.

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Preliminary observations on fecundity of the processid shrimpNikoides schmitti(Decapoda, Caridea) from Mexican Caribbean

Martínez-Mayén

Román-Contreras

2015

Invertebrate Reproduction & Development

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Nikoides schmitti is widely distributed along the Atlantic coast of the Americas, from North Carolina to Bahia, Brazil and Cuba and Guadeloupe; however, the knowledge about their reproductive biology is poorly known. In this study, data such as sex ratio, fecundity, size and volume of the embryos, and brood loss of material collected in July 1997 from Mahahual, Quintana Roo, Mexico is provided. The sample of 728 specimens had a sex ratio of 0.40 males per female. Fecundity (N = 31) of ovigerous females (Stage I) varied from 219 to 817, with an average of 432 ± 177 embryos. The newly extruded embryos of N. schmitti were small (0.41 ± 0.030 mm) and similar in size to those reported for other species of the genus. The mean volume of the embryos changed significantly during development, increasing 60.9% from stages I to III. Embryo loss during incubation was estimated in 32.9%. This study provides baseline information about the reproduction of N. schmitti and contributes to a better knowledge of this species little studied.

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Reproductive biology ofPalaemon pandaliformis(Stimpson, 1871) (Crustacea, Decapoda, Caridea) from two estuaries in southeastern Brazil

Cited by 13 publications

References 30 publications

Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

Comparison of decapod communities across an urban-forest land use gradient in Puerto Rican streams

Preliminary observations on fecundity of the processid shrimpNikoides schmitti(Decapoda, Caridea) from Mexican Caribbean

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