Crescimento relativo de Macrobrachium acanthurus (Wiegmann, 1836) (Crustacea, Decapoda, Palaemonidae)

Valenti, Wagner C.; Lobão, Vera Lucia; Mello, Jeanette T. Cardoso de

doi:10.1590/s0101-81751989000100001

Cited by 14 publications

(9 citation statements)

References 4 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…M. acanthurus exhibits indirect development and females hatch carnivorous planktonic larvae that take 30-40 days to metamorphose (Valenti 1985). In south-eastern Brazil, M. acanthurus reproduces year-round, but with the greatest intensity during the austral summer (Valenti et al 1986). Males and females attain a maximum body length of 138 mm and 108 mm, respectively (Valenti et al 1987).…”

Section: Introductionmentioning

confidence: 99%

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Bertini

Baeza

Pérez

2014

Mar. Freshwater Res.

View full text Add to dashboard Cite

Abstract. Macrobrachium acanthurus inhabits estuaries and rivers in the western Atlantic. It is not clear whether females migrate towards estuaries to hatch larvae, as reported for other congeneric shrimps. We tested whether females of M. acanthurus exhibit reproductive migrations. The population dynamics of this shrimp was studied in the Ribeira de Iguape River, Brazil. Four sites that differ in position with respect to the coast were sampled monthly during 2007. In M. acanthurus, reproduction was seasonal and reproductive intensity did not vary among study sites. Females brooding early and late embryos were found at all study sites during the reproductive season. No disappearance of reproductive females was observed at the study site located furthest away (,150 km) from the coast. Thus, reproductive females of M. acanthurus do not exhibit reproductive migrations towards estuaries to hatch larvae. Maturity in females was reached at smaller body sizes during the austral summer and spring compared with winter and autumn. Growth rate and body size was sex-specific; males grew slower but attained larger average and final body sizes than females. This information needs to be considered in assessing stocks and establishing sustainable management plans for M. acanthurus in Brazil.

show abstract

Section: Introductionmentioning

confidence: 99%

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Bertini

Baeza

Pérez

2014

Mar. Freshwater Res.

View full text Add to dashboard Cite

show abstract

“…, 1984), dinâmica da reprodução (VA-LENTI et aI., 1986) e crescimento (VALENTI et al ., 1989 Denominou-se ova ao conjunto de ovos portados por uma fêmea. As ovas dos 87 exemplares foram retiradas dos pleópodos e pesadas em uma balança com precisão de décimo milésimo de grama.…”

Section: Introductionunclassified

Fecundidade em Macrobrachium acanthurus (Wiegmann, 1836) do Rio Ribeira de Iguape (Crustacea, Decapoda, Palaemonidae)

Valenti

Mello²,

Lobão³

1989

Rev. Bras. Zool.

Self Cite

View full text Add to dashboard Cite

In this paper, the fecundity in Macrobrachium acanthurus (Wiegmann, 1836) of the Ribeira de Iguape river (Southern Brazil) (Crustacea, Decapoda, Palaemonidae), is presented. The mean individual fecundity of the population was estimated. Fecundity was related to either length and/or weight. Our data showed that this species presents high fecundity and is thus suitable for comercial culture. The fecundity/length and fecundity/weight relationships obtained are: F = - 14 712 + 2 311,8 L and F = -1493,9 + 798,76

show abstract

“…On the other hand, the relative growth of the female chelipeds was different for all the articles when compared to the males. These appendices might have distinct utilities between juveniles and adults of the population studied, as food search, territorial defense, agnostic behavior, courtship and mating behaviors (Nagamine & Knight, 1980;Volpato & Hoshino, 1984;Valenti et al, 1989;Karplus et al, 1992;Ismael & New, 2000). This result may reflect the usefulness of this appendage between both sexes; females may not need an appendage so developed for basic functions such as foraging and feeding, for example.…”

Section: Discussionmentioning

confidence: 99%

Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction

Nogueira

Oliveira

Jacobucci

et al. 2019

Iheringia, Sér. Zool.

View full text Add to dashboard Cite

The main objective of this study was to estimate the morphological sexual maturity of Macrobrachium brasiliense (Heller, 1862) and to analyze the relative growth of the species. During one year of sampling, from July 2012 to June 2013, 199 specimens were collected in a stream located in a Cerrado biome, in the Triângulo Mineiro region, state of Minas Gerais. Once identified and sexed, the length of the carapace, the length of the segments of the chelipeds (ischium, merus, carpus, propodus and dactyl) and width of the pleura were measured (mm). The maximum and mean sizes of the carapace length measured 20.5 mm (Mean: 9.6 ± 4.2 mm) and 20.1 mm (Mean: 7.7 ± 3.4 mm) for males and females, respectively. The propodus length for males, and the pleura width for females, were used for the classification of the specimens into juvenile and adult, using K-means analysis and discriminant analysis. The relative growth of the species was also evaluated through covariance analysis for all structures (ANCOVA, α = 0.05). In females, the growth of most structures occurred equally between juveniles and adults, with the exception of the merus and pleura structures. On the other hand, the growth of almost all structures of males differed between juveniles and adults. Only the carpus and the pleura growth were similar. We also estimated the size at onset of morphological sexual maturity at 8.64 mm CL for males (CL50% r = 1.71) and 8.03 mm CL for females (CL50% r = 0.07). Our results contribute to the understanding of some important questions related to the reproductive biology of M. brasiliense. We noted that males grow differently from females and become the largest individuals in the population, resulting in a sexual dimorphism. Such sexual dimorphism might promote the development of the temporary mating guarding behavior, a reproductive strategy very important for caridean shrimps.

show abstract

Crescimento relativo de Macrobrachium acanthurus (Wiegmann, 1836) (Crustacea, Decapoda, Palaemonidae)

Cited by 14 publications

References 4 publications

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Fecundidade em Macrobrachium acanthurus (Wiegmann, 1836) do Rio Ribeira de Iguape (Crustacea, Decapoda, Palaemonidae)

Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction

Contact Info

Product

Resources

About