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Population biology of Uca maracoani Latreille 1802-1803 (Crustacea, Brachyura, Ocypodidae) on the south-eastern coast of Brazil
TLDR
The population biology of Uca maracoani was investigated in an estuarine mudflat in the Jabaquara River, Paraty, Brazil, where males predominated during most of the year, except in July and August when the proportion of females was higher.
Relative growth, morphological sexual maturity, and size of Macrobrachium amazonicum (Heller 1862) (Crustacea, Decapoda, Palaemonidae) in a population with an entirely freshwater life cycle
TLDR
The objective of this study was to estimate the size of morphological sexual maturity based on the study of relative growth, and to determine if there are different morphotypes of males in a population of Macrobrachium amazonicum with an entirely freshwater life cycle.
Comparison of body size, relative growth and size at onset sexual maturity of Uca uruguayensis (Crustacea: Decapoda: Ocypodidae) from different latitudes in the south-western Atlantic
TLDR
This study compared two populations of the fiddler crab Uca uruguayensis from two locations on the south-western Atlantic coast: Ubatuba Bay, São Paulo, Brazil and Samborombón Bay, Buenos Aires, Argentina to test the hypothesis that the size at SOM, should be the same in relative terms (RSOM), independently of the latitudinal position.
Temporal and spatial distribution of the commercial shrimp Litopenaeus schmitti (Dendrobranchiata: Penaeidae) in the south-eastern Brazilian coast
TLDR
Temperature, salinity, organic content and rainfall modulate the distribution of L. schmitti in three bays of the northern coast of the State of São Paulo, Ubatumirim (UBM), Ubatuba (UBA) and Mar Virado (MV), over a period of two years.
Population dynamic of Sesarma rectum (Crustacea, Brachyura, Sesarmidae) from a muddy flat under human impact, Paraty, Rio de Janeiro, Brazil
TLDR
The continuity of reproductive processes and the juvenile recruitment suggest this species is able to live in the area with human impact, and the ability to obtaining nutrients from different source of food is probably a feature that allows S. rectum to occupy such impacted ecosystem.
Morphological and molecular analyses confirm the occurrence of two sympatric Lysmata shrimp (Crustacea, Decapoda) in the southwestern Atlantic.
TLDR
It is concluded that L. lipkei and L. vittata have successfully invaded the western Atlantic and are also present in Sergipe State, northeastern Brazil.
New records of decapod crustaceans from the coast of Sergipe state, Brazil
TLDR
Seven decapod crustacean species for the first time from Sergipe state, northeastern Brazil are reported to fill gaps in the geographical distribution that have previous records for adjacent areas.
Differentiation in Selection of Dicots and Grasses by the Leaf-Cutter Ants Atta capiguara, Atta laevigata and Atta sexdens rubropilosa
TLDR
It was deduced that dicotyledonous leaf-cutter ants such as A. capiguara do not substantially forage grasses since they are not adapted to overcome the greater resistance of grasses to cutting and due to their innate tendency to not prefer grasses.
Decapod crustaceans from the continental shelf of Sergipe, northeastern Brazil.
TLDR
The crustacean richness of Sergipe is probably underestimated and likely to increase with further samplings, especially on artificial rocky shores, rhodoliths and algae banks, small coralline formations, and other unexplored estuarine habitats.
Morphological and morphometric comparisons of the first zoea of four species of purse crabs (Decapoda: Brachyura: Leucosiidae) from the Brazilian South Atlantic
TLDR
Morphological descriptions of the first larval stages of Persephona mediterranea, P. lichtensteinii and P. punctata from the South Atlantic are provided, with comparisons among the morphometry of the species.
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