Tab. 2. Taxonomic list of sampled species according to Eschmeyer, Fricke (2017) and species abundance, feeding and migratory guilds in the region sampled in the Pantanal National Park, during the dry season (Oct-Nov, 2010 and 2011). PB - permanent bays, TB - temporary bays, CR - “corixos”, MR - main rivers. TG - trophic guilds; C - carnivores; I - insectivores/ invertivores; O - omnivores; D - detritivores; H - herbivores; ND - not determined trophic guild; LdM - long-distance migratory species.IDSPECIESPBTBCRMRTotalTGLdMACTINOPTERYGIIBELONIFORMESBelonidae1Potamorhaphis eigenmanni Miranda Ribeiro, 191501102CCHARACIFORMESAcestrorhynchidae2Acestrorhynchus pantaneiro Menezes, 199201405CAnostomidae3Abramites hypselonotus (Günther, 1868)449241390H4Leporinus friderici Bloch, 179410607O5Leporinus lacustris Amaral Campos, 194592216653O6Leporinus striatus Kner, 185813181133O7Megaleporinus macrocephalus (Garavello & Britski, 1988)10719OYes8Megaleporinus obtusidens (Valenciennes, 1837)01203O9Schizodon borellii (Boulenger, 1900)81242769H10Schizodon isognathus Kner, 185820103HBryconidae11Brycon hilarii (Valenciennes, 1850)01102OYesCharacidae12Aphyocharax anisitsi Eigenmann & Kennedy, 19030120012I13Aphyocharax dentatus Eigenmann & Kennedy, 190342716249O14Aphyocharax nattereri (Steindachner, 1882)18108452173I15Aphyocharax rathbuni Eigenmann, 19070343037I16Astyanax abramis (Jenyns, 1842)0680169I17Astyanax asuncionensis Géry, 197213206O18Bryconamericus exodon Eigenmann, 1907150216399I19Bryconamericus stramineus Eigenmann, 1908251647492I20Charax leticiae Lucena, 19871201123C21Ctenobrycon alleni (Eigenmann & Kennedy, 1907)1855451119O22Cynopotamus kincaidi (Schultz, 1950)10102C23Galeocharax humeralis (Valenciennes, 1834)682016C24Gymnocorymbus ternetzi (Boulenger, 1895)11002O25Hemigrammus lunatus Durbin, 191833128411419748O26Hemigrammus marginatus Ellis, 19110345039I27Hyphessobrycon eques (Steindachner, 1882)5029411623483I28Hyphessobrycon megalopterus (Eigenmann, 1915)474500128O29Jupiaba acanthogaster (Eigenmann, 1911)2182058030533O30Moenkhausia bonita Benine, Castro & Sabino, 20041145020O31Moenkhausia dichroura (Kner, 1858)38173720112O32Moenkhausia forestii Benine, Mariguela & Oliveira, 2009461904510291O33Moenkhausia oligolepis (Günther, 1864)10001O34Odontostilbe paraguayensis Eigenmann & Kennedy, 19031020300132O35Odontostilbe pequira (Steindachner, 1882)224718346424O36Poptella paraguayensis (Eigenmann, 1907)535013I37Prionobrama paraguayensis (Eigenmann, 1914)298854336221510O38Psellogrammus kennedyi (Eigenmann, 1903)71610510138O39Roeboides descalvadensis Fowler, 19320145322C40Roeboides microlepis (Reinhardt, 1851)115714C41Serrapinnus calliurus (Boulenger, 1900)40332310855889O42Serrapinnus kriegi (Schindler, 1937)0024024O43Serrapinnus microdon (Eigenmann, 1915)53100539501450O44Tetragonopterus argenteus Cuvier, 18163310016OCrenuchidae45Characidium laterale (Boulenger, 1895)150487306721015I46Characidium aff. zebra Eigenmann, 19098022737ICurimatidae47Curimatella dorsalis (Eigenmann & Eigenmann, 1889)05005D48Curimatopsis myersi Vari, 19820962098D49Cyphocharax gillii (Eigenmann & Kennedy, 1903)062412D50Potamorhina squamoralevis (Braga & Azpelicueta, 1983)27375720141D51Psectrogaster curviventris Eigenmann & Kennedy, 190332063187DCynodontidae52Rhaphiodon vulpinus Spix & Agassiz, 182960129CErythrinidae53Hoplerythrinus unitaeniatus (Spix & Agassiz, 1829)20103O54Hoplias aff. malabaricus (Bloch, 1794)12516942CGasteropelecidae55Gasteropelecus sternicla (Linnaeus, 1758)7750165I56Thoracocharax stellatus (Kner, 1858)00055IHemiodontidae57Hemiodus orthonops Eigenmann & Kennedy, 190310012OIguanodectidae58Piabucus melanostoma Holmberg, 18911005015HLebiasinidae59Pyrrhulina australis Eigenmann & Kennedy, 1903451878617335IProchilodontidae60Prochilodus lineatus (Valenciennes, 1837)2681237DYesSerrassalmidae61Metynnis maculatus (Kner, 1858)02002H62Myleus levis Eigenmann & McAtee, 19070411116H63Mylossoma duriventre (Cuvier, 1818)67251149H64Piaractus mesopotamicus (Holmberg, 1887)419216HYes65Pygocentrus nattereri Kner, 185862366517180C66Serrasalmus maculatus Kner, 185895625494C67Serrasalmus marginatus Valenciennes, 18375710393109CTriportheidae68Engraulisoma taeniatum Castro, 198100202I69Triportheus nematurus (Kner, 1858)9723645I70Triportheus pantanensis Malabarba, 20046327137ICLUPEIFORMESEngraulidae71Anchoviella sp.0204024NDORDER CYPRINODONTIFORMESPoeciliidae72Pamphorichthys hasemani (Henn, 1916)00101ICynolebiidae73Melanorivulus punctatus (Boulenger, 1895)00404IORDER GYMNOTIFORMESApteronotidae74Apteronotus albifrons (Linnaeus, 1766)734014I75Apteronotus caudimaculosus de Santana, 200381518849O76Sternarchorhynchus curvirostris (Boulenger, 1887)00202IGymnotidae77Gymnotus inaequilabiatus (Valenciennes, 1839)775019I78Gymnotus paraguensis Albert & Crampton, 200301618IHypopomidae79Brachyhypopomus spp.60965325234NDRamphichthyidae80Gymnorhamphichthys britskii Carvalho, Ramos & Albert, 2011251210I81Rhamphichthys hahni (Meiken, 1937)01012ISternopygidae82Eigenmannia trilineata López & Castello, 19669606381803232101I83Eigenmannia virescens (Valenciennes, 1836)22291269186I84Sternopygus macrurus (Bloch & Schneider, 1801)83686136248IORDER PERCIFORMESCichlidae85Aequidens plagiozonatus Kullander, 19845010015O86Apistogramma borellii (Regan, 1906)20945074I87Apistogramma commbrae (Regan, 1906)343212I88Apistogramma trifasciata (Eigenmann & Kennedy, 1903)8211614130369I89Astronotus crassipinnis (Heckel, 1840)00202I90Cichlasoma dimerus (Heckel, 1840)1114221057D91Crenicichla lepidota Heckel, 184039526524180C92Crenicichla vittata Heckel, 184010001O93Laetacara dorsigera (Heckel, 1840)10001O94Mesonauta festivus (Heckel, 1840)04239HSciaenidae95Plagioscion ternetzi Boulenger, 189560129CORDER SILURIFORMESAspredinidae96Amaralia oviraptor Friel & Carvalho, 201610001C97Pseudobunocephalus rugosus (Eigenmann & Kennedy, 1903)31004DAuchenipteridae98Auchenipterus nigripinnis (Boulenger, 1895)20002C99Auchenipterus osteomystax (Miranda Ribeiro, 1918)30104C100Entomocorus benjamini Eigenmann, 191732005I101Tatia neivai (Ihering, 1930)00101I102Trachelyopterus coriaceus Valenciennes, 184010001O103Trachelyopterus galeatus (Linnaeus, 1766)114141140O104Trachelyopterus striatulus (Steindachner, 1877)00336OCallichthydae105Callichthys callichthys (Linnaeus, 1758)703010O106Corydoras hastatus Eigenmann & Eigenmann, 188801101443257I107Hoplosternum littorale (Hancock, 1828)00202IDoradidae108Anadoras weddellii (Castelnau, 1855)01304O109Ossancora eigenmanni (Boulenger, 1895)37151439I110Oxydoras kneri Bleeker, 186213012227O111Platydoras armatulus (Valenciennes, 1840)512513O112Pterodoras granulosus (Valenciennes, 1821)108211OHeptapteridae113Imparfinis spp.1220774113ND114Phenacorhamdia hoehnei (Miranda Ribeiro, 1914)00404I115Pimelodella gracilis (Valenciennes, 1835)0711523O116Pimelodella mucosa Eigenmann & Ward, 190700101I117Pimelodella notomelas Eigenmann, 191710001I118Rhamdia aff. quelen (Quoy & Gaimard, 1824)31127OLoricariidae119Ancistrus spp.30003ND120Farlowella paraguayensis Retzer & Page, 1997002810D121Hemiodontichthys acipenserinus (Kner, 1853)00011I122Hypoptopoma inexspectatum (Holmberg, 1893)4333144741201341D123Hypostomus cochliodon Kner, 185418432822111D124Hypostomus latifrons Weber, 198632323058D125Hypostomus spp.83556944251D126Loricaria spp.30003D127Loricariichthys labialis (Boulenger, 1895)10001D128Loricariichthys platymetopon Isbrücker & Nijssen, 197930003D129Otocinclus vittatus Regan, 19044884623471161413H130Pterygoplichthys ambrosettii (Holmberg, 1893)3873048D131Rineloricaria parva (Boulenger, 1895)4092362141661025D132Spatuloricaria evansii (Boulenger, 1892)10001D133Sturisoma barbatum (Kner, 1853)00505DPimelodidae134Hemisorubim platyrhynchos (Valenciennes, 1840)00112CYes135Hypophthalmus edentatus Spix & Agassiz, 182901001O136Pimelodus argenteus Perugia, 1891542011O137Pimelodus pantaneiro Souza-Filho & Shibatta, 200711417O138Pseudoplatystoma corruscans (Spix & Agassiz, 1829)10001CYes139Pseudoplatystoma reticulatum Eigenmann & Eigenmann, 188911417CYes140Sorubim lima (Bloch & Schneider, 1801)10113CYesScoloplacidae141Scoloplax distolothrix Schaefer, Weitzman & Britski, 1989200810I142Scoloplax empousa Schaefer, Weitzman & Britski, 198912003ITrichomycteridae143Ituglanis eichorniarum (Miranda Ribeiro, 1912)10012I144Ituglanis herberti (Miranda Ribeiro, 1940)10001I145Trichomycterus johnsoni (Fowler, 1932)01001ISYNBRANCHIFORMESSynbranchidae146Synbranchus marmoratus Bloch, 179501214I528071544902162118954