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<taxon>
	<dc:identifier>FB-4720</dc:identifier>
	<dc:source>http://www.fishbase.org/summary/SpeciesSummary.php?id=4720</dc:source>
	<dwc:Kingdom>Animalia</dwc:Kingdom>
	<dwc:Phylum>Chordata</dwc:Phylum>
	<dwc:Class>Teleostei</dwc:Class>
	<dwc:Order>Gobiiformes</dwc:Order>
	<dwc:Family>Gobiidae</dwc:Family>
	<dwc:Genus>Neogobius</dwc:Genus>
	<dwc:ScientificName>Neogobius fluviatilis (Pallas, 1814)</dwc:ScientificName>
	<commonName xml:lang='fa'>Gavmahi-e-sheni</commonName>
	<commonName xml:lang='fa'>Gel-ye Mahi Rudkhaneha-ye</commonName>
	<commonName xml:lang='en'>Monkey goby</commonName>
	<commonName xml:lang='en'>Sand goby</commonName>
	<commonName xml:lang='et'>Jõe-uusmudil</commonName>
	<commonName xml:lang='fi'>Jokitokko</commonName>
	<commonName xml:lang='fr'>Gobie fluviatile</commonName>
	<commonName xml:lang='hu'>Folyami géb</commonName>
	<commonName xml:lang='ru'>Babka</commonName>
	<commonName xml:lang='ru'>Bychok-peschanik</commonName>
	<commonName xml:lang='ru'>бычок белый</commonName>
	<commonName xml:lang='ru'>бычок-песочник</commonName>
	<commonName xml:lang='ru'>песчаник</commonName>
	<commonName xml:lang='sv'>Sandsmörbult</commonName>
	<commonName xml:lang='tr'>Tatlısu kayası balığı</commonName>
	<commonName xml:lang='tr'>Tatlısukayası balığı</commonName>
	<commonName xml:lang='uk'>Бичок-пісочник</commonName>
	<commonName xml:lang='es'>Gobio de río</commonName>
	<commonName xml:lang=''>Guvid de baltă</commonName>
	<commonName xml:lang=''>Neogovios potamou</commonName>
	<commonName xml:lang=''>Νεογωβιός ποταμού</commonName>
	<commonName xml:lang=''>گاو ماهي</commonName>
	<commonName xml:lang=''>乳新鰕虎魚</commonName>
	<commonName xml:lang=''>乳新鰕虎鱼</commonName>
	<synonym relationship='synonym'>Apollonia fluviatilis (Pallas, 1814)</synonym>
	<synonym relationship='synonym'>Gobius fluviatilis Pallas, 1814</synonym>
	<synonym relationship='ambiguous synonym'>Gobius fluviatilis nigra Kessler, 1859</synonym>
	<synonym relationship='ambiguous synonym'>Gobius sordidus Bennett, 1835</synonym>
	<synonym relationship='synonym'>Gobius steveni Nordmann, 1840</synonym>
	<synonym relationship='synonym'>Gobius stevenii Nordmann, 1840</synonym>
	<synonym relationship='synonym'>Neogobius fluviatilis fluviatilis (Pallas, 1814)</synonym>
	<dcterms:created>1991-11-06</dcterms:created>
	<dcterms:modified>2024-01-23</dcterms:modified>
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	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=93826&amp;speccode=4720'>Eschmeyer, W.N. (ed.)0 Catalog of fishes. Updated internet version of 02 July 2013. Catalog databases of CAS cited in FishBase (website). (Ref. 93826)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=94844&amp;speccode=4720'>Ilhan, A., M. Sari, . Saygi and M.R. Ustaoğlu0 Length-weight relationships of freshwater fishes in the Biga Peninsula (northwestern Anatolia, Turkey). J. Appl. Ichthyol. 28:857-858. (Ref. 94844)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=105471&amp;speccode=4720'>eElurikkus0 eElurikkus koondab ühte portaali Eesti eluslooduse andmed. http://elurikkus.ut.ee/ (Ref. 105471)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=106151&amp;speccode=4720'>Çiçek, E., R. Fricke and S.S. Birecikligil0 Freshwater fishes of Turkey: a revised and updated annotated checklist. Biharean Biologist 9(2):141-157. (Ref. 106151)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=115062&amp;speccode=4720'>Semenchenko, V.P., V.K. Rizevsky, S.E. Mastitsky, V.V. Vezhnovets, M.V. Pluta, V.I. Razlutsky and T. Laenko0 Checklist of aquatic alien species established in large river basins of Belarus. Aquatic Invasions 4(2): 337-347. (Ref. 115062)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=126681&amp;speccode=4720'>Dinh, Q.M.0 Aspects of reproductive biology of the red goby &lt;i&gt;Trypauchen vagina&lt;/i&gt; (Gobiidae) from the Mekong Delta. J. Appl. Ichthyol. 34(1):103-110. (Ref. 126681)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=126969&amp;speccode=4720'>Abdoli, A., H. Rahmani and P. Rasooli0 On the occurrence, diet and reproduction of &lt;i&gt;Neogobius fluviatilis&lt;/i&gt; in Madarsoo stream, Golestan National Park (north eastern Iran). Zoology in the Middle East 26(1):123-128. (Ref. 126969)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=127183&amp;speccode=4720'>Didenko, A., I. Buzevych, Y. Volikov, A. Gurbyk, S. Kruzhylina and V. Bekh0 Population dynamics and dietary habits of monkey goby (&lt;i&gt;Neogobius fluviatilis&lt;/i&gt;) in its native range in the Dnieper River basin. Mar. Freshw. Res. 73(8):1083-1097. (Ref. 127183)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=130435&amp;speccode=4720'>IUCN0 The IUCN Red List of Threatened Species. 1964 - onwards. https://www.iucnredlist.org/ (Ref. 130435)</reference>
	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=137577&amp;speccode=4720'>Price, S.A., S.T. Friedman, K.A. Corn, O. Larouche, K. Brockelsby, A.J. Lee, M. Nagaraj, N.G. Bertrand, M. Danao, M.C. Coyne, J.R. Estrada, R. Friedman, E. Hoeft, M. Iwan, D. Gross, J.H. Kao, B. Landry, M.J. Linares, C. McGlinn and …0 FishShapes v1: Functionally relevant measurements of teleost shape and size on three dimensions. Ecology 103(e3829):1-2. (Ref. 137577)</reference><dataObject>
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	<dc:title>Biology</dc:title>
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	<dc:description>Occurs in inshore habitats, estuaries and brackish- and fresh-water lagoons and lakes; large to medium sized rivers and streams; on sand or mud bottom.  It is one of the most abundant fish in lowland rivers.  This species lives up to 5 years; spawns for the first time at 2 years; spawning season in April to July, locally until September, when temperature is above 13°C; females may repeat spawning during a season.  Males with body completely black with yellow fin margins during the spawning season; these excavate nests under any kind of hard substrate and guard eggs until hatching; with adhesive eggs deposited on stones, shells and aquatic plants.  Feeds on a variety of invertebrates, especially molluscs (Ref.59043).</dc:description>
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	<reference isbn='978-2-8399-0298-4' url='http://www.fishbase.org/references/FBRefSummary.php?id=59043&amp;speccode=4720'>Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)</reference></dataObject><dataObject>
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	<dc:description>This species is distinguished from its congeners entering freshwater in the Black Sea basin by the following characters:  first branched ray of second dorsal about twice as long as penultimate ray; completely scaled nape; pelvic-disc fraenum with small rounded lobes and the length is less than 1/6 of width at base; pelvic disc reaching 90-100% of distance between its origin and anus; scales in midlateral series 55-61 + 2-4; posterior part of first dorsal without black spot (Ref. 59043).</dc:description>
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	<reference isbn='5-02-002872-X' url='http://www.fishbase.org/references/FBRefSummary.php?id=50519&amp;speccode=4720'>Reshetnikov, Y.S. 2003 Atlas of Russian freshwater fishes, Vol. 2. Moscow Nauka. (Ref. 50519)</reference></dataObject><dataObject>
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	<dc:description>Dorsal spines (total): 7; Dorsal soft rays (total): 14 - 18;  Analspines: 1; Analsoft rays: 12 - 17</dc:description>
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	<reference isbn='5-02-002872-X' url='http://www.fishbase.org/references/FBRefSummary.php?id=50519&amp;speccode=4720'>Reshetnikov, Y.S. 2003 Atlas of Russian freshwater fishes, Vol. 2. Moscow Nauka. (Ref. 50519)</reference></dataObject><dataObject>
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	<dc:description>Eurasia:  Azov and Black Sea basins.  Invasive in rivers of northern Black Sea basin, recorded in 1997 from middle Vistula (Poland), reaching from Dniepr via a navigation canal.  In Danube upriver to Hungary, in Dniepr up to Belurus.  Introduced in Lake Balaton, Hungary around 1970.</dc:description>
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	<reference isbn='978-2-8399-0298-4' url='http://www.fishbase.org/references/FBRefSummary.php?id=59043&amp;speccode=4720'>Kottelat, M. and J. Freyhof 2007 Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)</reference></dataObject><dataObject>
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	<dc:description>fisheries: minor commercial</dc:description>
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	<dc:description>Deposits oval eggs on stones. Male guards the eggs for 3-4 days (Ref.26211).Males have completely black body with yellow fin margins during spawning season. (Ref.59043). </dc:description>
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	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=26211&amp;speccode=4720'>Lelek, A. 1987 Threatened fishes of Europe. The freshwater fishes of Europe Vol.9. Aula-Verlag Wiesbaden. 343. (Ref. 26211)</reference></dataObject><dataObject>
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	<dc:title>Max. size</dc:title>
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	<dc:description>20.0 cm SL (male/unsexed; (Ref. 59043)); max. reported age: 5 years (Ref. 59043)</dc:description>
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	<dc:description>Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group</dc:description>
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	<reference isbn='' url='http://www.fishbase.org/references/FBRefSummary.php?id=57073'>IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.</reference></dataObject><dataObject>
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	<dc:description>benthopelagic; freshwater; brackish</dc:description>
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