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<h1 id="firstHeading" class="firstHeading mw-first-heading"><i>Cottus</i></h1>
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<th><i>Cottus</i>
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<td class="taxo-bild" style="font-size:smaller;">
<p><a href="Rheingroppe" title="Rheingroppe">Rheingroppe</a> (<i>Cottus gobio</i>)
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<th><a href="Systematik_(Biologie)" title="Systematik (Biologie)">Systematik</a>
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<td><a href="Barschverwandte" title="Barschverwandte">Barschverwandte</a> (Percomorphaceae)
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Ordnung</a>:</i>
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<td><a href="Barschartige" title="Barschartige">Barschartige</a> (Perciformes)
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Unterordnung</a>:</i>
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<td><a href="Cottoidei" title="Cottoidei">Cottoidei</a>
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Teilordnung</a>:</i>
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<td><a href="Groppenverwandte" title="Groppenverwandte">Groppenverwandte</a> (Cottales)
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<td><i><a href="Familie_(Biologie)" title="Familie (Biologie)">Familie</a>:</i>
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<td><a href="Groppen" title="Groppen">Groppen</a> (Cottidae)
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<td><i><a href="Gattung_(Biologie)" title="Gattung (Biologie)">Gattung</a>:</i>
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<td><i>Cottus</i>
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<th><a href="Nomenklatur_(Biologie)" title="Nomenklatur (Biologie)">Wissenschaftlicher Name</a>
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<td class="taxo-name"><i>Cottus</i>
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<td class="Person"><a href="Carl_von_Linn%C3%A9" title="Carl von Linné">Linnaeus</a>, 1758
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<p><i><b>Cottus</b></i> ist eine artenreiche Fischgattung aus der <a href="Familie_(Biologie)" title="Familie (Biologie)">Familie</a> der <a href="Groppen" title="Groppen">Groppen</a> (Cottidae). Die über 60 Arten der Gattung sind die einzigen im Süßgewässern lebenden Groppen und kommen in kalten Flüssen, Bächen und Seen auf der Nordhalbkugel der Erde in Europa, Nordamerika und Nordasien vor. In Deutschland kommen die <a href="Groppe" title="Groppe">Groppe</a> (<i>C. gobio</i>), die <a href="Scheldegroppe" title="Scheldegroppe">Scheldegroppe</a> (<i>C. perifretum</i>), die <a href="Sibirische_Groppe" title="Sibirische Groppe">Sibirische Groppe</a> (<i>C. poecilopus</i>), die Baltische Groppe (<i>C. microstomus</i>) und die <a href="Rheingroppe" title="Rheingroppe">Rheingroppe</a> (<i>C. rhenanus</i>) vor.<sup id="cite_ref-Freyhofetal_1-0" class="reference"><a href="#cite_note-Freyhofetal-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Merkmale">Merkmale</h2></div>
<p><i>Cottus</i>-Arten werden 6<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> bis 30<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Zentimeter lang. Sie haben einen dicken, breiten Kopf mit einem großen Maul und einen sich nach hinten bis zur Schwanzflosse verjüngenden Körper. Die Brustflossen sind groß, die Bauchflossen stehen weit vorn unterhalb der Brustflossen. Der hartstrahlige und der längere, weichstrahlige Teil der Rückenflosse sind durch eine Einbuchtung deutlich voneinander getrennt. <i>Cottus</i>-Arten sind für gewöhnlich tarnend bräunlich, grau oder schwärzlich gefärbt. Sie ernähren sich von bodenbewohnenden, wirbellosen Tieren und von Fischbrut. In Anpassung an ihre bodenbewohnende Lebensweise besitzen <a href="Adult" title="Adult">adulte</a> Tiere keine <a href="Schwimmblase" title="Schwimmblase">Schwimmblase</a> mehr.
</p>
<div class="mw-heading mw-heading2"><h2 id="Systematik">Systematik</h2></div>
<p><i>Cottus</i> ist keine <a href="Monophyletisch" class="mw-redirect" title="Monophyletisch">monophyletische</a> Gattung, sondern eine <a href="Paraphyletisch" class="mw-redirect" title="Paraphyletisch">paraphyletische</a> Sammelgattung aller Süßwassergroppen die außerhalb des <a href="Baikalsee" title="Baikalsee">Baikalsees</a> vorkommen. Die Groppen des Baikalsees werden in drei eigenständige Familien klassifiziert, die <a href="Baikalgroppen" title="Baikalgroppen">Baikalgroppen</a> (Cottocomephoridae) und die in großen Wassertiefen lebenden <a href="Tiefwassergroppen" title="Tiefwassergroppen">Tiefwassergroppen</a> (Abyssocottidae) und <a href="Baikal-%C3%96lfische" title="Baikal-Ölfische">Baikal-Ölfische</a> (Comephoridae). Da diese aber in einer <a href="Adaptive_Radiation" title="Adaptive Radiation">adaptiver Radiation</a> aus einer eingewanderten, ursprünglich in sibirischen Flüssen lebenden Süßwassergroppe hervorgegangen sind, stehen die drei Familien der Baikalsee-Groppen <a href="Phylogenetisch" class="mw-redirect" title="Phylogenetisch">phylogenetisch</a> innerhalb der Gattung <i>Cottus</i>.
</p><p>Innerhalb der Gattung <i>Cottus</i> lassen sich mehrere <a href="Klade" title="Klade">Kladen</a> unterscheiden, die nach Gattungen benannt wurden, die mit <i>Cottus</i> <a href="Synonym_(Taxonomie)" title="Synonym (Taxonomie)">synonymisiert</a> worden sind.
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<small>Phylogenetische Systematik der Gattung <i>Cottus</i> nach Kinziger et al. 2005</small></div>
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<td style="min-width:1em; border-bottom:2px solid; vertical-align:bottom; text-align:center;"> <i>Cottus</i>
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<p><i>Cottopsis</i>-Klade
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<p><i>Uranidea</i>-Klade
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<p>Baikal-Klade
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<p><i>C. beldingii</i>, <i>C. leiopomus</i>, <i>C. greenei</i>
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<p><i>Cottus</i>-Klade
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<p><i>C. hangiongensis</i>, <i>C. poecilopus</i>, <i>C. pollux</i>, <i>C. reini</i>
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<p><i>Cephalocottus</i>-Klade
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<p><i><a href="Leptocottus_armatus" title="Leptocottus armatus">Leptocottus armatus</a></i>
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<p><i>Rheopresbe kazika</i>
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<td valign="top"><br><span style="display:none;">Vorlage:Klade/Wartung/Style</span>
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<ul><li><i>Cottopsis</i>-Klade
<ul><li><i>Cottus aleuticus</i> Gilbert, 1896</li>
<li><i>Cottus asper</i> Richardson, 1836</li>
<li><i>Cottus asperrimus</i> Rutter, 1908</li>
<li><i>Cottus gulosus</i> (Girard, 1854)</li>
<li><i>Cottus klamathensis</i> Gilbert, 1898</li>
<li><i>Cottus marginatus</i> (Bean, 1881)</li>
<li><i>Cottus perplexus</i> Gilbert & Evermann, 1894</li>
<li><i>Cottus pitensis</i> Bailey & Bond, 1963</li>
<li><i>Cottus princeps</i> Gilbert, 1898</li></ul></li>
<li><i>Uranidea</i>-Klade
<ul><li><i>Cottus baileyi</i> Robins, 1961</li>
<li><i>Cottus bairdii</i> Girard, 1850</li>
<li><i>Cottus bendirei</i> (Bean, 1881)</li>
<li><i>Cottus caeruleomentum</i> Kinziger, Raesly & Neely, 2000</li>
<li><i>Cottus carolinae</i> (Gill, 1861)</li>
<li><i>Cottus cognatus</i> Richardson, 1836</li>
<li><i>Cottus extensus</i> Bailey & Bond, 1963</li>
<li><i>Cottus girardi</i> Robins, 1961</li>
<li><i>Cottus hubbsi</i> Bailey & Dimick, 1949</li>
<li><i>Cottus hypselurus</i> Robins & Robison, 1985</li>
<li><i>Cottus paulus</i> Williams, 2000</li>
<li><i>Cottus rhotheus</i> (Smith, 1882)</li>
<li><i>Cottus specus</i> Adams et al., 2013</li></ul></li>
<li>Baikal-Klade
<ul><li><a href="Tiefwassergroppen" title="Tiefwassergroppen">Tiefwassergroppen</a></li>
<li><a href="Baikal-%C3%96lfische" title="Baikal-Ölfische">Baikal-Ölfische</a></li>
<li><a href="Baikalgroppen" title="Baikalgroppen">Baikalgroppen</a></li></ul></li>
<li><i>Cottus</i>-Klade
<ul><li><i>Cottus cyclophthalmus</i> Sideleva et al., 2022</li>
<li><i>Cottus ferrugineus</i> Heckel & Kner, 1858</li>
<li><a href="Groppe" title="Groppe">Groppe</a> (<i>Cottus gobio</i> Linnaeus, 1758)</li>
<li><i>Cottus ricei</i> (Nelson, 1876)</li>
<li><i>Cottus sibiricus</i> Kessler in Warpachowski, 1889</li></ul></li>
<li><i>Cephalocottus</i>-Klade
<ul><li><i>Cottus amblystomopsis</i> Schmidt, 1904</li>
<li><i>Cottus nozawae</i> Snyder, 1911</li></ul></li>
<li><a href="Incertae_sedis" title="Incertae sedis">incertae sedis</a>
<ul><li><i>Cottus aturi</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><i>Cottus beldingii</i> Eigenmann & Eigenmann, 1891</li>
<li><i>Cottus confusus</i> Bailey & Bond, 1963</li>
<li><i>Cottus czerskii</i> Berg, 1913</li>
<li><i>Cottus dorofeevi</i> Sideleva & Zhidkov, 2024</li>
<li><i>Cottus duranii</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><a href="Utah-Groppe" title="Utah-Groppe">Utah-Groppe</a> (<i>Cottus echinatus</i> Bailey & Bond, 1963)</li>
<li><i>Cottus gratzianowi</i> Sideleva et al., 2015</li>
<li><i>Cottus greenei</i> (Gilbert & Culver in Jordan & Evermann, 1898)</li>
<li><i>Cottus hangiongensis</i> Mori, 1930</li>
<li><i>Cottus hispaniolensis</i> Bacescu & Bacescu-Mester, 1964</li>
<li><i>Cottus kanawhae</i> Robins, 2005</li>
<li><i>Cottus kolymensis</i> Sideleva & Goto, 2012</li>
<li><i>Cottus koreanus</i> Fujii, Choi & Yabe, 2005</li>
<li><i>Cottus koshewnikowi</i> Gratzianov, 1907</li>
<li><i>Cottus leiopomus</i> Gilbert & Evermann, 1894</li>
<li><i>Cottus metae</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><i>Cottus microstomus</i> Heckel, 1837</li>
<li><i>Cottus nasalis</i> Berg, 1933</li>
<li><a href="Scheldegroppe" title="Scheldegroppe">Scheldegroppe</a> (<i>Cottus perifretum</i> Freyhof, Kottelat & Nolte, 2005)</li>
<li><a href="Petit-Groppe" title="Petit-Groppe">Petit-Groppe</a> (<i>Cottus petiti</i> Bacescu & Bacescu-Mester, 1964)</li>
<li><i>Cottus pollux</i> Günther, 1873</li>
<li><a href="Sibirische_Groppe" title="Sibirische Groppe">Sibirische Groppe</a> (<i>Cottus poecilopus</i> Heckel, 1837)</li>
<li><i>Cottus reinii</i> Hilgendorf, 1879</li>
<li><a href="Rheingroppe" title="Rheingroppe">Rheingroppe</a> (<i>Cottus rhenanus</i> Freyhof, Kottelat & Nolte, 2005)</li>
<li><i>Cottus rondeleti</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><i>Cottus sabaudicus</i> Sideleva, 2009</li>
<li><i>Cottus scaturigo</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><i>Cottus schitsuumsh</i> Lemoine et al., 2014</li>
<li><i>Cottus spinulosus</i> Kessler, 1872</li>
<li><i>Cottus szanaga</i> Dybowski, 1869</li>
<li><i>Cottus tallapoosae</i> Neely, Williams & Mayden, 2007</li>
<li><i>Cottus tenuis</i> (Evermann & Meek, 1898)</li>
<li><i>Cottus transsilvaniae</i> Freyhof, Kottelat & Nolte, 2005</li>
<li><i>Cottus volki</i> Taranetz, 1933</li></ul></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Literatur">Literatur</h2></div>
<ul><li>Klaus Reutter: <i>Taste Organ in the Bullhead (Teleostei).</i> 1978. – zum Geschmacksorgan der Groppen.</li>
<li>Andrew P. Kinziger, Robert M. Wood, David A. Neely: <i>Molecular Systematics of the Genus Cottus (Scorpaeniformes: Cottidae).</i> <a href="Copeia" class="mw-redirect" title="Copeia">Copeia</a>, 2005(2):303-311. 2005. <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1643/CI-03-290R1">10.1643/CI-03-290R1</a></span></li>
<li>Leo Smith, Ward C. Wheeler: <i>Polyphyly of the mail-cheeked fishes (Teleostei: Scorpaeniformes): evidence from mitochondrial and nuclear sequence data</i>, Molecular Phylogenetics and Evolution Volume 32, Issue 2, August 2004, Pages 627-646 <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1016/j.ympev.2004.02.006">10.1016/j.ympev.2004.02.006</a></span></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-Freyhofetal-1"><span class="mw-cite-backlink"><a href="#cite_ref-Freyhofetal_1-0">↑</a></span> <span class="reference-text">Freyhof, J., Kottelat, M. und Nolte, O. (2005): Taxonomic diversity of European Cottus with description of eight new species (Teleostei: Cottidae). Ichthyol. Explor. Freshwaters, Vol. 16, No. 2, S. 107–172</span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.fishbase.org/summary/SpeciesSummary.php?genusname=Cottus&speciesname=scaturigo&lang=German"><i>Cottus scaturigo</i></a> auf <a href="FishBase" title="FishBase">Fishbase.org</a> (englisch)</span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.fishbase.org/summary/SpeciesSummary.php?genusname=Cottus&speciesname=kazika&lang=German"><i>Cottus kazika</i></a> auf <a href="FishBase" title="FishBase">Fishbase.org</a> (englisch)</span>
</li>
</ol>
<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
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