Chec List Actinopterygii, Siluriformes, Loricariidae, Loricariichthys

n Actinopterygii, Siluriformes, Loricariidae, Loricariichthys platymetopon istributio D border of the states Isbrücker of São and Paulo Nijssen, and 1979:Paraná, First Brazil record raphic g in Reservoir of Canoas II, Middle Paranapanema River, eo Ana Carolina Souto * G n

o Daniel Carvalho , Ana Paula Vidotto-Magnoni, Heleno Brandão, Igor Paiva Ramos and Edmir otes N Rubião Jr. s/n. CEP. 18600-000. Botucatu, SP, Brazil. * CorrespondingUniversidade Estadual author. E-mail:Paulista, [email protected] Instituto de Biociências, Departamento de Morfologia, Laboratório de Biologia e Ecologia de Peixes. Distrito de

Abstract: First record of the “cascudo”, Loricariichthys platymetopon

Isbrücker and Nijssen, 1979 in Canoas II Reservoir (Middle Paranapanema River, border of the states of São Paulo and Paraná, Brazil). Its occurrence is due to the flooding of Sete Quedas waterfall, as a result of the construction of Itaipu Reservoir. Furthermore, there is absence or low abundance of natural predators, like Salminus brasiliensis, since this species has difficulties to adapt or even survive in reservoirs.

Loricariichthys platymetopon The standard length (Ls) of this species can vary from 11.0 cm to 23.8 cm (Fugi et al. 1996), presenting size on “cascudoThe fish viola”, species and “raspa canoa” (Figure 1), Isbrücker has its the onset of gonadal maturation around 13.0 cm (Marcucci naturaland Nijssen, distribution 1979, in known Prata asRiver “cascudo basin (Reis chinelo”, and Pereira “acari”, et al. 2005); males present parental care during the reproduction, carrying the eggs in the lips (Dei Tos et al. plates disposed in series; ventral mouth and reduced 1997). swim2000). bladder, This fish involved species byexhibit a bony body capsule covered attached with dermal to the et al. 2007). pisciculture at Rio Grande do Sul state, Brazil (Baldisserotto, The diet is composed mainly by organic detritus, 2009)This being species one of of thefish most presents captured high species potential in the for sedimentposterior part (mineral of the cranium particles), (Britski Diptera larvae (Chironomidae), microcrustaceans, nematodes, mites, and the carcass can be used as complement of ration due et al. 1996), representing an tofisheries its good in calcareousthat state. It composition presents good (Querol productivity et al. 1996). of fillet, important role in the detritus food chain, in the energy mollusks and algae (Fugi downstream of Sete Quedas waterfall, a natural barrier Fugi et al. 2001). This species lives in lentic and semi-lentic betweenAfter thethe formationstretches of ItaipuUpper Reservoir,and Middle located Paraná 150 River km environmentsflow and cycling (Querol of nutrients et al in ecosystems (Bowen 1983; was lost (Agostinho et al. 2007). Approximately 37 species of dissolved oxygen of the water (Azevedo 1938). Furthermore, this species does. 2002), not withcarry little out reproductiverequirement (Langeani et al. 2007). Four species, the “piranha” migration, not depending of tributaries for complete its Serrasalmusof fishes raised marginatus, the river, invading the “cangati” the floodplain Parauchenipterus upstream cycle of life (Marcucci et al. 2005). galeatus, the “armado” Pterodoras granulosus and the “cascudo” Loricariichthys platymetopon are among the

(Gaspar da Luz et al. 2004). Furthermore, the species continuedmost abundant ascending in the and fish colonizing communities reservoirs of the floodplainupstream the Upper Paraná River basin.

River,In studiesas Capivara, carried Salto out Grande until 1998 (Bennemann there was etno al register. 2000; Diasabout and this Garavello species of 1998) fish in and reservoirs Jurumirim of Paranapanema (Carvalho and Silva 1999). However, the massive presence of this species

Reservoir (Britto and Carvalho 2006), located downstream was first recorded between 1993 and 2000, in Taquaruçu recorded in Capivara Reservoir in 1999 (Marcucci et al. Figure 1. Loricariichthys platymetopon (register number: LBP 9115 2005),of reservoirs and was informed among the above. most The abundant species species was first and considered constant in all reservoir between 2001 and the- UNESP, states of Instituto São Paulo de and Biociências Paraná, Brazil. de Botucatu, SP, Brazil) specimen 2002 (Hoffmann et al. 2005). sampled at Canoas II reservoir, Middle Paranapanema River, border of Check List | Volume 7 | Issue 3 | 2011 279 Souto et al. | First record of Loricariichthys platymetopon in Reservoir of Canoas II, Brazil

Figure 2. and Paraná, Brazil and sampling site. Map the state São Paulo indicating the reservoirs of Canoas II and Salto Grande, Middle Paranapanema River, border of the states of São Paulo Baldisserotto, B. 2009. Piscicultura continental no Rio Grande do Sul: Ciência Rural 39(1): 291-299. individualsThe Canoas of L. IIplatymetopon Reservoir (Figure (register 2) isnumber: located LBP between 9115 situação atual, problemas e perspectivas para o futuro. Salto Grande and Canoas I reservoirs. We captured 10 Environmental Biology Fishes 9: 137-144. Bowen, S.H. 1983. Detritivory in neotropical2007. Peixes fish communities. do Pantanal. Brasília: EMBRAPA. 184 p. (downstream- UNESP, Instituto of de Salto Biociências Grande de Reservoir, Botucatu, 22°55’38.68” SP, Brazil) in Britski, H.A., K.Z.S. Silimon and B.S. Lopes. January/2010, in a stretch upstream of Canoas II Reservoir Britto,Brazil): S.G. and composition E.D. Carvalho. and 2006. spatial Ecological distribution. attributes Acta of Limnologica fish fauna Brasiliensisin the Taquaruçu 18(4): 377 Reservoir, - 388. Paranapanema River (Upper Paraná, exposedS, 50°00’10.86” for 18 hours. W). For All specimens the samplings (nine we females used gilland netsone male)(mesh presented size from the 3 to gonads 14 cm in between mature stage, opposite indicating knots) that the specie is rising the Middle Paranapanema River, Carvalho,Paranapanema), E.D. and V.F.B. São Paulo;Silva. 1999.p. 771-799 Aspectos In R. ecológicos Henry (ed.). da Ecologia ictiofauna de reservatórios:e da produção estrutura, pesqueira função, do reservatório e aspectos sociais de Jurumirim. Botucatu: (Alto FAPESP. Rio and establishing in reservoirs upstream. 1997. Population structure and The loricariids present parental care, involving reproductive biology of Loricariichthys platymetopon (Siluriformes, different behaviors, as protect their eggs in nest or cavities, Dei Tos,Pisces) C., A.A. in the Agostinho upper riverand H.I. Paraná. Suzuki. Brazilian Archives of Biology and Technology 40(4): 793-807. or carrying them in the surface of the body. The carrying of eggs is an effective reproductive strategy in environments community of Salto Grande Reservois, Paranapanema river basin, that present variations in the limnological conditions and Dias,São J.H.P. Paulo, and Brazil. J.C. Garavello.Verhandlungen 1998. International Ecological Verein studies Limnology on the fish26: 2228-2231. water level (Moodie and Power 1982), as observed in Fugi, R., N.S. Hahn and A.A. Agostinho. Environmental Biology of Fishes 46: 297-307. 1996. Feeding styles of five species the water in these sites inhibits the visual localization by of bottom-feeding fishes of the high Paraná River. predatorsseveral reservoirs. (Dei Tos et In al. addition,1997). Studies the low carried transparency out in Paraná of Revista Brasileira River indicate that the “dourado” Salminus brasiliensis Fugi,de R., Biologia A.A. Agostinho 61: 27-33. and N.S. Hahn. 2001. Trophic morfology of five is one of the few natural predators of L. platymetopon, benthicfeeding fish species of a tropical floodplain. and L.C. Gomes. 2004. Fish assemblages in the Upper Paraná River composing more than 60% of its diet (Hahn et al. (1997). Gasparfoodplain; Da Luz, p.K.D., 107-115 E.F. Oliveira, In A.A. A.C. Agostinho, Petry, H.F. L. Júlio Rodrigues, Júnior, C.S. L.C. Pavanelli Gomes, These natural predators such S. brasiliensis S.M. Thomaz and L.E. Miranda (ed.). Structure and functioning of the stretches of river to perform its reproductive migration, Paraná River and its foodplain: LTER – site 6 (Peld – sítio 6). Maringá: EDUEM. therefore presenting low abundance in reservoirs. require long Therefore, the low abundance of natural predators for p. 209-228 In A.E.A.M. Vazzoler, A.A. Agostinho and N.S. Hahn (ed.). A cascudo L. platymetopon might turn this species abundant, Hahn,planície N.S., I.F. de Andrian, inundação R. Fugido alto and rio V.L.L. Paraná: Almeida. aspectos 1997. físicos, Ecologia biológicos trófica; e socioeconômicos. Maringá: EDUEM. as observed in Capivara Reservoir (Marcucci et al. 2005), Hoffmann, A.C., M.L. Orsi and O.A. Shibatta. 2005. Diversidade da fauna, such as competition for food and space resources, Paranapanema. Iheringia, Série Zoologia 95(3): 319-325. ictiofauna do reservatório da UHE Escola Mackenzie2009. (Capivara), A massive rio and may cause unpredictable effects on native fish introduction of pathogens and parasites and genetic Júlioupper Jr., H.F.; rio C. Paraná Dei Tós; basin. A.A. Agostinho Neotropical and Ichthyology C.S. Pavanelli. 7(4): 709-718. changeshabitat modification (Agostinho et and al. 2007).functioning of the local system, invasion of fish species after eliminating2005. a naturalEstratégia barrier reprodutiva in the Loricariichthys platymetopon (Siluriformes, Marcucci, K.M.I., M.L. Orsi and O.A. Shibatta. Literature Cited Paranapanema.e a ocupação Iheringia, de Série Zoologia 95(2): 196-203. Agostinho, A.A., A.E.A. Vazzoler and M.S.M. Thomaz. 1995. The High River Moodie,Loricariidae) E.E. and M. na Power. área de 1982. influência The reproductive da represa biologyde Capivara, of an armouredmédio rio Paraná Basin: limonological and ichthyological Loricaria uracantha, from Central America. Environmental aspects; p. 59-103 In: J.G. Tundisi, C.E.M. Bicudo and T. Matsumura- Biology of Fishes 7(2): 143-148. Tundisi (ed.). Limnology in Brazil. Rio de Janeiro: ABC/SBL. Querol,catfish, M.V.M., E. Querol and E. Passos. 1996. Estudo preliminar do Agostinho, A.A., L.C. Gomes, F.M. Pelicice. 2007. Ecologia e manejo de cascudo Loricariichthys platymetopon recursos pesqueiros em reservatórios do Brasil. Maringá: EDUEM. 501 (Siluriformes, Loricariidae) visando seu aproveitamento comercial, p. na região de Uruguaiana, RS, Brasil. Revista (Isbrucker da Faculdade and Nijssen, de Zootecnia, 1979) Plecostomus Veterinária e Agronomia de Uruguaiana.2/3(1): 13-17. plecostomus. Publicado no Instituto de Pesca, Buenos Aires 10(9): 211- Azevedo,224. P. 1938. O cascudo dos açudes nordestinos gonadal, índice hepatossomático e recrutamento como indicadores Querol, M.V.M., E. Querol and N.N.A. Gomes. 2002. Fator de condição

Check List | Volume 7 | Issue 3 | 2011 280 Souto et al. | First record of Loricariichthys platymetopon in Reservoir of Canoas II, Brazil

Loricariichthys platymetopon : January 2011 (Osteichthyes, Loricariidae), bacia do rio Uruguai médio, sul do : March 2011 Brasil.do período Iheringia, de Série reprodução Zoologia 92(3): de 1-112. Received : April 2011 Reis, R.E. and E.H.L. Pereira. 2000. Three new species of the loricariid Last Revised : May 2011 Accepted : Rubens Pazza South America. Copeia 4: 1029-1047. Published online catfish genus Loricariichthys (Teleostei: Siluriformes) from southern Editorial responsibility

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