GALAXIAS MACULATUS PDF

Major geologic and climatic changes during the Quaternary exerted a major role in shaping past and contemporary distribution of genetic diversity and structure of aquatic organisms in southern South America. In fact, the northern glacial limit along the Pacific coast, an area of major environmental changes in terms of topography, currents, and water salinity, represents a major biogeographic transition for marine and freshwater species. We used mitochondrial DNA sequences D-loop to investigate the consequences of Quaternary glacial cycles over the pattern of genetic diversity and structure of G. Extreme levels of genetic diversity and strong phylogeographic structure characterize the species suggesting a low amount of influence of the last glacial cycle over its demography.

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The webpage text is licensed under a Creative Commons Attribution-Noncommercial 4. Toggle navigation. WoRMS taxon details. Galaxias maculatus Jenyns, Galaxias Cuvier, Mesites maculatus Jenyns, Synonymised names. Galaxias alpinus Jenyns, Galaxias amaenus Castelnau, Galaxias attenuatus Jenyns, Galaxias cylindricus Castelnau, Galaxias delicatulus Castelnau, Galaxias forsteri Kner, homonym.

Galaxias maculatus ignotus Stokell, Galaxias minutus Philippi, Galaxias nebulosa MacLeay, Galaxias obtusus Klunzinger, Galaxias parrishi Stokell, Galaxias pseudoscriba McCoy, Galaxias punctulatus Philippi, Galaxias scriba Valenciennes, Galaxias usitatus McDowall, Galaxias variegatus Lahille, Galaxias versicolor Castelnau, Galaxias waterhousei Kreft, misspelling.

Galaxias waterhousei Krefft, misspelling. Galaxias waterhousi Krefft, Mesites alpinus Jenyns, Mesites attenuatus Jenyns, Mesites forsteri Kner, Mesites gracillimus Canestrini, Bailly, Nicolas. Sources 3 Documented distribution 1 Attributes 14 Links 56 Images 1. Darwin ed. The zoology of the voyage of H. Beagle, under the command of Captain Fitzroy, R.

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Human uses

The Common Galaxias is usually found in still or slow-flowing waters like streams rivers and lakes. They feed on aquatic and terrestial insects and crustaceans. The Common Galaxias can be recognised by a combination of characters that include an elongate body, dorsal and anal fins located opposite each other at the posterior of the body and a forked tail. Its colouration ranges from green to amber, with a variable covering of spots and blotches. The Common Galaxias is very widespread.

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Common galaxias

Common Galaxias, Galaxias maculatus. Source: Rudie H. License: All rights reserved. Video of Common Galaxias stranded in pools left by high spring tides in the lower reaches of the Thurra River in Croajingolong National Park, Victoria. Video of Common Galaxias in Western Australia.

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