Page
%P
-
Protocol
Physical Map** of Repeated Sequences on Fish Chromosomes by Fluorescence In Situ Hybridization (FISH)
The opportunity to map genes and noncoding DNA sequences on the chromosomes by fluorescence in situ hybridization (FISH) has greatly enhanced the potential for fish karyoty** and comparative cytogenetics. Th...
-
Article
Otolith chemical composition suggests local populations of Antarctic silverfish Pleuragramma antarctica (Boulenger, 1902) around Antarctica are exposed to similar environmental conditions at early life stages
The Antarctic silverfish Pleuragramma antarctica is a key species in the Southern Ocean ecosystem, and it is potentially threatened by the climate change affecting Antarctic ecosystems. Assessing the possible exp...
-
Article
Open AccessMidtrophic fish feeding modes at the poles: an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica)
The polar cod (Boreogadus saida) and the Antarctic silverfish (Pleuragramma antarctica) are pelagic fish endemic to the Arctic and Antarctica sea, respectively. Both species are abundant and play a central role a...
-
Article
Diversified feeding strategies of Pleuragramma antarctica (Nototheniidae) in the Southern Ocean
The Antarctic silverfish Pleuragramma antarctica is a plankton feeder playing an important role at midtrophic level in High Antarctic ecosystems. Over years, a reasonable bulk of information has been collected on...
-
Article
Diversification of feeding structures in three adult Antarctic nototheniid fish
During their evolution and speciation in the Antarctic waters, notothenioid fish occupied a variety of habitats and ecological niches. The diversification led to important variations in several morphological f...
-
Book
-
Article
Reproductive features of the Antarctic silverfish (Pleuragramma antarctica) from the western Ross Sea
The Antarctic silverfish Pleuragramma antarctica is the most abundant pelagic fish inhabiting the Ross Sea. Given its ecological relevance in the local food web, it is considered a keystone species in the Antarct...
-
Chapter
Conservation and Management of Antarctic Silverfish Pleuragramma antarctica Populations and Habitats
One of the main conservation objectives for marine systems is to identify areas of ecological importance for biodiversity and essential species habitats which can be used as scientific reference areas for moni...
-
Chapter
Evolution Reshaped Life for the Water Column: The Skeleton of the Antarctic Silverfish Pleuragramma antarctica Boulenger, 1902
The Antarctic silverfish is a neutrally buoyant notothenioid fish that lives in resource-rich pelagic habitats through all life history stages. Given the ancestral benthic origin of notothenioids, the ability ...
-
Article
Open AccessEvolution in an extreme environment: developmental biases and phenotypic integration in the adaptive radiation of antarctic notothenioids
Over the past 40 million years water temperatures have dramatically dropped in the Southern Ocean, which has led to the local extinction of most nearshore fish lineages. The evolution of antifreeze glycoprotei...
-
Article
Sex determination in Antarctic notothenioid fish: chromosomal clues and evolutionary hypotheses
In fish, the determination of sex can be controlled by genetic factors, environmental factors or a combination of both. The presence of heteromorphic sex-related chromosomes is widely acknowledged as strongly ...
-
Article
Cytogenetic diversity of notothenioid fish from the Ross sea: historical overview and updates
Cytogenetics provides a unique platform to study in situ structural, functional, and evolutionary aspects of the genome. As such it holds powerful promise in decoding mechanisms and processes of genome archite...
-
Article
A nursery area for the Antarctic silverfish Pleuragramma antarcticum at Terra Nova Bay (Ross Sea): first estimate of distribution and abundance of eggs and larvae under the seasonal sea-ice
Pleuragramma antarcticum is the dominant pelagic fish in the waters of the continental shelf in high Antarctic regions, where it plays a key role in the food web. A nursery ground for eggs of thi...
-
Article
Presence and distribution of serotonin in the stomach of the Antarctic silverfish Pleuragramma antarcticum
Serotonin is a signal molecule with a wide range of functions in vertebrates. In Antarctic fishes, the serotonergic system has been studied in the brain, revealing differences from temperate fishes related to ...
-
Chapter
Sea-Ice Interactions with Polar Fish: Focus on the Antarctic Silverfish Life History
The sea ice, extending seasonally over a vast area of the circumpolar Oceans, plays major roles in earth global systems and marine life. Pleuragramma antarcticum (Antarctic silverfish), a key fish in Antarctic co...
-
Article
Open AccessMolecular pedomorphism underlies craniofacial skeletal evolution in Antarctic notothenioid fishes
Pedomorphism is the retention of ancestrally juvenile traits by adults in a descendant taxon. Despite its importance for evolutionary change, there are few examples of a molecular basis for this phenomenon. No...
-
Article
Born among the ice: first morphological observations on two developmental stages of the Antarctic silverfish Pleuragramma antarcticum, a key species of the Southern Ocean
-
Article
Born among the ice: first morphological observations on two developmental stages of the Antarctic silverfish Pleuragramma antarcticum, a key species of the Southern Ocean
The Antarctic silverfish Pleuragramma antarcticum is a keystone species in the Southern Ocean ecosystem, providing one of the major links between lower and higher trophic levels. Despite the importance of this sp...
-
Article
Cytogenetic map** of immunoglobulin heavy chain genes in Antarctic fish
The chromosomal location of the IgH locus has been analyzed in several bony fish of the Antarctic perciform group Notothenioidei. Two IgH probes were prepared from the species Trematomus bernacchii (family Nototh...
-
Article
Aspects of Gonadal Morphology in the South Georgian Plunderfish Artedidraco Mirus (Perciformes: Artedidraconidae)
Research on reproduction in Antarctic fishes has been primarily focused on evaluation of macroscopic features while microscopic studies have been limited to very few species. In particular no data are availabl...
