Publications by authors named "Ricardo DE Souza Rosa"
Article Synopsis
- The study focused on the spawning ecology of the damselfish Stegastes sanctipauli in the St Peter and St Paul's Archipelago, aiming to identify factors impacting reproductive success based on egg loss rates throughout the spawning season.
- Egg predation peaked near the last quarter moon, primarily due to the actions of the fish Halichoeres radiatus, with larger nests at higher egg densities facing greater predation.
- The findings indicate a balance between food availability for adult fish in shallow reefs and the high risk of egg predation, suggesting that the spawning behavior of S. sanctipauli is shaped by the need to optimize resources while minimizing threats to their offspring.
The rays of the order Myliobatiformes present several diagnostic characters, the most striking one being the presence of a serrated sting on the dorsal region of the tail. Although several morphological hypotheses have been proposed supporting the monophyly and interrelationships of its members, few characters of the appendicular skeleton were employed. In the present study, we analyzed comparatively the pelvic girdle morphology across all the groups of rays to investigate the distribution of the ischial process.
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