Valentina Bernal-Durán- PhD Ecology and Evolutionary Biology
- Professor (Assistant) at Universidad Santo Tomás
Valentina Bernal-Durán
- PhD Ecology and Evolutionary Biology
- Professor (Assistant) at Universidad Santo Tomás
About
13
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Introduction
Marine Biologist and PhD in Ecology and Evolutionary Biology at Universidad de Chile. I'm interested in marine population connectivity and the influence of biological and oceanographic proccess that modulate it, specially the role of early life stages and their interaction with environmental conditions.
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Publications
Publications (13)
The surf silverside (Notocheirus hubbsi) is a rare and poorly known species within Notocheiridae. However, 2 collections of larval and juvenile specimens in Chile provided an opportunity to study unknown aspects of its morphological development and early life history. This study describes the ossification process and provides a detailed osteologica...
Connectivity is a fundamental process of population dynamics in marine ecosystems. In the last decade, with the emergence of new methods, combining different approaches to understand the patterns of connectivity among populations and their regulation has become increasingly feasible. The Western Antarctic Peninsula (WAP) is characterized by complex...
Antarctic notothenioid fishes show wide adaptive morphological radiation, linked to habitat preferences and food composition. However, direct comparisons of phenotypic variability and feeding habits are still lacking, particularly in stages inhabiting nearshore areas. To assess these relationships, we collected juveniles and adults of the most comm...
Molecular-based analysis has become a fundamental tool to understand the role of Quaternary glacial episodes. In the Magellan Province in southern South America, ice covering during the last glacial maximum (20 ka) radically altered the landscape/seascape, speciation rates and distribution of species. For the notothenioid fishes of the genus Harpag...
Abundance of early life stages of the surf silverside Notocheirus hubbsi (Teleostei, Atheriniformes) in the coastal nearshore of central Chile Abundancia de estadios tempranos del pejerreicillo Notocheirus hubbsi (Teleostei, Atheriniformes) en las costas de Chile central Abstract.-The abundance of early stages of the surf silverside Notocheirus hub...
Coastal upwelling and other oceanographic processes, exert influences on phenotypic traits of early life stages of marine fishes. However, it remains to elucidate the environmental effects on the morphology of fish larvae. Using geometric morphometrics and otolith microstructure of a temperate rocky reef fish, the labrisomid blenny Auchenionchus cr...
Coastal upwelling and other oceanographic processes, exert influences on phenotypic traits of early life stages of marine fishes. However, it remains to elucidate the environmental effects on the morphology of fish larvae. Using geometric morphometrics and otolith microstructure of a temperate rocky reef fish, the labrisomid blenny Auchenionchus cr...
Nearshore ichthyoplankton assemblages are constantly influenced by the dynamics of coastal environments (i.e. daily thermal gradients and coastal currents), as well as by regional environmental forcing, such as upwelling events. The aims of this study were to describe larval and postlarval fish assemblages on a short-time scale and relate their int...
Parasites are common in fish, which affect their host attributes, both directly and indirectly. The clingfish Gobiesox marmoratus presents high prevalence and ectoparasite intensity (chalimus stages of copepods Trifur and Caligus) during its larval stage, when the effects of the parasites could be even greater. The ectoparasite effects were evaluat...
Larval body shape changes and developmental timing were examined in two clingfish species from the south-east Pacific Ocean, Gobiesox marmoratus and Sicyases sanguineus. Ontogenetic allometry showed no interspecific variation and <7 mm standard length (LS) larvae of both species occupied similar morphospace, but larger G. marmoratus showed increase...
The majority of rocky reef fishes have complex life cycles, involving transition from a pelagic to a benthic environment. This means that as they grow, their morphology, behaviour and feeding habits must change. Therefore, shape changes occurring during early development of these fishes will be related to diet changes. The clingfish Sicyases sangui...
Larval development and shape ontogeny of the kelpfish Myxodes viridis (Clinidae) are described for the first time. A total of 214 individuals ranging between 3.51 and 23.09 mm standard length collected off central Chile were assessed employing classic and geometric morphometrics, illustration with camera lucida and a double-staining technique for c...
