Understanding the evolutionary mechanisms that affect the genetic divergence between
diadromous and resident populations across heterogeneous environments is a challenging …

It is common to count the numbers of specified fish in the field after speciation of captured
fish according to their morphology and to subject these counts to appropriate statistical …

Galaxias species are interesting biogeographic models due to their distribution and different
types of life cycles, with migratory and landlocked populations. To obtain a better …

This study reports the phenotypic and genetic differences between individuals of puyen
Galaxias maculatus from two sites in the same river basin in Tierra del Fuego National Park …

The Antarctic coastal fauna is characterized by high endemism related to the progressive
cooling of Antarctic waters and their isolation by the Antarctic Circumpolar Current. The …

Estuaries are dynamic environments, key for the survival of innumerous ecologically or
economically important fish species. Among these species are Neotropical silversides …

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 …

The rise of the southern Andes and the Quaternary glacial cycles influenced the landscape
of Patagonia, affecting the phylogeographic and biogeographic patterns of its flora and …

The delimitation of fishery stocks is an important aspect for the development and
implementation of fishery stock management and sustainable use programs. Genetic …

Understanding connectivity is crucial for the effective conservation and management of
biota. However, measuring connectivity directly is challenging and it is often inferred based …