Diagnostic Description
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англиски
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Large head. Fusiform body. Large and terminal mouth. Two dorsal fins. First with 6 spines, second with 1 spine and 10 to 11 branched rays. Adults body and fins usually grey to black with a clearer belly. Juveniles brown with a serie of darker rounded marks along the flanks. First dorsal usually shows a black mark in its posterior part, especially for young specimens. Fading while fish age. 10 to 25cm (Ref. 57749).
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Migration
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англиски
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Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
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Morphology
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англиски
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Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Analspines: 1; Analsoft rays: 9 - 10
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Biology
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This species occurs in freshwaters and sometimes brackish waters in slow to fast current waters to the base of the first falls. Usually occurs in clear waters with sand, gravel or rock bottom. Feeds on algae, detritus, worms, gastropods and crustaceans. Close biology to A. guamensis. Amphidromous species. Adults migrate to the mouth of the rivers for reproduction. Females spawn on the rocks' surface where the males fecund the eggs. Males protect the eggs until they hatch (incubation lasts 24 to 70hrs). Larvae, translucid, are then carried into estuaries or sea. They come back after they spent 150 to 165 days in seawaters (Ref. 57749). Also Ref. 4343.
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Awaous commersoni: Brief Summary
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каталонски; валенсиски
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Awaous commersoni és una espècie de peix de la família dels gòbids i de l'ordre dels perciformes.
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Awaous commersoni: Brief Summary
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англиски
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Awaous commersoni, or Commerson's freshwater goby, is a species of goby found on islands in the Southwest Indian Ocean.
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Awaous commersoni: Brief Summary
(
шпански; кастиљски
)
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Awaous commersoni es una especie de peces de la familia de los Gobiidae en el orden de los Perciformes.
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Awaous commersoni
(
баскиски
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(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Awaous commersoni: Brief Summary
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баскиски
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Awaous commersoni Awaous generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Gobiidae familian.
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Awaous nigripinnis
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баскиски
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(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Awaous nigripinnis: Brief Summary
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баскиски
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Awaous nigripinnis Awaous generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Gobiidae familian.
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