Characidae): Range Extension with New Records in the Rio Madeira

istributio Castro, 1981 (Characiformes: D Characidae): Range extension with new records in the rio raphic g Madeira basin, Rondônia and Amazonas states, Brazil eo

G Willian Massaharu Ohara n o

[email protected] Universidade Federal de Rondônia, Laboratório de Ictiologia e Pesca. BR 364 km 9.5. CEP 76900-000. Porto Velho, RO, Brazil. E-mail: otes N

Abstract: Engraulisoma taeniatum E. taeniatum was

is a rare fish recorded in few collections around the world. In Brazil only known from the rio Paraguay drainage according to the available scientific literature. Herein the geographic range of the species in the Brazilian territory is extended to tributaries of the rio Madeira basin in the States of Rondônia and Amazonas.

Engraulisoma taeniatum Castro, 1981 (Figure 1) is

paratypes was collected in the rio Taquari, municipality of small freshwater fish that can reach 42 mm SL in size. The EngraulisomaCoxim, Mato Grosso do Sul. placement of the species within theIncertae order CharaciformesSedis member The geographic distribution of the monotypicet al. genus has been unstable although itet wasal. assessed in several was known only for the upper etrio al. Paraguay studies. It had been considered an E. taeniatum was system. Ortega and Vari (1986) and Ortega (2001) of the family Characidae (Lima 2003), however in the extended its distribution to Peru. Carvalho Engraulisoma (2009) morphological phylogeny of the family taeniatumrecorded the species to the upper río Yuruá in Peru,Clupeacharax however found to be closely related to the members of the family anchoveoidesthe picture of the voucher specimen of Gasteropelecidae (Mirande, 2010).Agoniates A different, Clupeacharax hypothesis, in that work is a specimen of Lignobryconof relationship wasTriportheus found with molecular tools, where the et. al. Ibarra and Stewart (1989) recorded its species waset al.found to be close to presence etin the al. río Napo basin in Ecuador, Braga (1998) and Engraulisoma in the taeniatum family Triportheidae and López (2003)E. fortaeniatum drainages in Argentina and (Oliveira 2011). Despite the uncertainty concerning Chernoff (2000) for Bolivia. Notwithstanding, the its relationships, is a valid only known recordset ofal. in Brazil are the type species characterized by the presence of a prominent localities (Castro, 1981) and rio Manso, a tributary to rio upper jaw; origin of dorsal fin posterior to the middle of Cuiabá (Veríssimo 2005). the body; long anal-fin base; lateral line curved, low on During the development of the project Monitoramente sides of the body, and ending on the caudal peduncle; e Conservação da Ictiofauna do rio Madeira (AssessmentE. Engraulisomatwo rows of teeth taeniatum on the premaxilla with four teeth in the taeniatumand Conservation of the ichthyofauna of the Madeira inner row; and a wide silvery lateral band (Castro 1981). River) from 2009 to 2011, a total of 239 specimens of was described based on the were collected in seven tributaries of the rio holotype and ten paratypes, collected in 1977 from the rio Madeira in Rondônia and Amazonas States. The specimens Cuiabá, municipality of Poconé, Mato Grosso State, Brazil. were captured mostly with seine and were deposited in the Although the type locality is in the rio Cuiabá, one of the Coleção Ictiológica da Universidade Federal de Rondônia

Figure 1. Engraulisoma taeniatum

Lateral view of , UFRO-I 12233, 38.6 mm SL, collected at the mouth of the igarapé Belmont, Porto Velho, Rondônia, Brazil. 1313 Ohara| Range extension of Engraulisoma taeniatum in Brazil

(UFRO-I 269, 1404 8410, 8411, 8412, 8594, 8601 9201, spp.) and allochthonous Homoptera, Coleoptera and 9208, 9209, 12233 and 12942). ofLepidoptera. Engraulisoma taeniatum In the rio Madeira basin the specimens were found These new records extend the geographical range inhabiting clear water, usually in sandy beaches in small insideEngraulisoma Brazil, in taeniatum a region igarapés such as Belmont, São Lourenço, Karipuna ca. 1.200 to 1.300 km distant from the type locality. and Jatuarana, Engraulisoma but also in large rivers as the Aripuanã, Absence of previous records of Manicoré and Jaciparaná (Figure 2). The majority of the in Rondônia and Amazonas may be due to the scarcity of specimens of were captured from the inventories on those states and the low abundance of this igarapé Jatuarana. Specimens from the lot UFRO-I 9209 species in the wild. Although the species is known by with(81) wereE. taeniatum collected in waterAphyocharacidium at 30.2°C temperature, bolivianum 0.53m the scientific community for over 30 years, records in deep and pHKnodus = 6.54. smithiOther species sampled syntopicallyTriportheus ofBrazilian Engraulisoma collections taeniatum are rare and information about albus Vandelliawere: cirrhosa its ecology and biology are scarce. Natural populations Géry Rhaphiodon 1973, vulpinus (Fowler 1913), in the Rondônia State Cope 1872, Valenciennes 1846 can be considered endangered with risk of local and Agassiz 1829. The analysisBezzia of extinction by the extreme alteration of its natural the stomach contents of five specimens (UFRO-I 9209) habitat, due to construction of hydroelectric plants in the revealed the presence of autochthonous Diptera ( region.

Figure 2. Engraulisoma taeniatum

Geographical distribution of in the rio Madeira basin. Each symbol may represent more than one collection or locality. ARI= rio Aripuanã, MAN = rio Manicoré, BEL = igarapé Belmont, JAT = igarapé Jatuarana, JAC = rio Jaciparaná, KAR = igarapé Karipunas, SLO = igarapé São Lourenço. Acknowledgments:

This work is part of the project “Monitoramente Lima, F.C.T, L.R. Malabarba, P.A. Buckup, J.F.P. da Silva, R.P. Vari, A. Harold, e Conservação da Ictiofauna do rio Madeira”, a partnership comprising R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, Universidade Federal de Rondônia, Instituto de Estudos e Pesquisas do M.C.S.L. Malabarba, Z.M.S. Lucena, R.E.In Reis, F. Langeani, L. Cassati, Agronegócio e Organizações Sustentáveis and Santo Antônio Energia. V.A. Bertaco, C. Moreira,Check List and of P.H.F. the FreshwaterLucinda, 2003. Fishes Genera of South incertae and The author is grateful to Carolina Doria for laboratory support and Centralsedis in America Characidae; p. 106-169. R.E. Reis, S.E. Kullander, C.J. especially to the Laboratory of Ichthyology the fieldwork team (UNIR) Ferraris Jr. (ed.). for the collection of the specimens. Maria Helena for the help with . Porto Alegre: Edipucrs. Serie Técnica y the identification of the stomach contents. This paper benefited from López,Didáctica H.L., A.M. Miquelarena and R.C. Menni 2003. Lista comentada de comments and criticism by Fernando Jerep (NMNH - SI). los peces continentales de la Argentina. ProBiotA - Literature Cited 5: 1-85. Neotropical MirandeIchthyology J.M. 2010. Phylogeny of the family Characidae (Teleostei: Politécnica Characiformes): from characters to taxonomy. Barriga, R. 1991. Peces de aguaEngraulisoma dulce del Ecuador. taeniatum Revista de Información , 8: 385-56. técnico-científica, Quito, Ecuador, 16(3):Physis 7-88. Oliveira, C.,G. S. Avelino, K.T. Abe, T.C. Mariguela, R.C. Benine, G. Ortí,R. P. Braga, L. 1998. Registro de Castro, en el Paraná Vari and R.M.C. Castro. 2011. Phylogenetic relationships within the medio, Argentina (Osteichthyes, Characidae). Peixes (Buenos do Pantanal Aires) Evolutionaryspeciose family Biology Characidae (Teleostei: Ostariophysi: Characiformes) ManualSección deB 56: identificaçao 29-30. based on multilocus analysis and extensive ingroup sampling. Britski, H. A., K. S. Silimon and B. S. Lopes.1999. : Smithsonian Contributions11: 1-275 to Zoology . Brasília: Embrapa. 184 p. Ortega, H. and R.P. Vari. 1986. Annotated checklist of the freshwater fishes Carvalho, CheckT. P., S. List J. Tang, J. I. Fredieu, R. Quispe, I. Corahua, H. Ortega, and of Peru. 437: 1-25. J. S. Albert. 2009.Engraulisoma Fishes from the taeniatum upper Yuruá river, Amazon basin, Veríssimo, S., C.S.CheckList Pavanelli, H.A. Britski and M.M.M. Moreira. 2005. Fish, Peru. 5(3): 673-691. Papéis Manso Reservoir region of influence, Rio Paraguai basin, Mato Grosso Castro,Avulsos R. M. do C. Departamento1981. de Zoologia , um novo gênero e espécie State, Brazil. 1(1): 1-9. de Characidae da bacia do Rio Paraguai (Pisces, Ostariophysi). (São Paulo) 34(11): 135-139. Received: March 2012 Chernoff, B., A. Machado-Allison, P. Willink,Interciencia J. Sarmiento, S. Barrera, Accepted: Ocotber 2012 N. Menezes, and H. Ortega. 2000. Fishes of three Bolivian rivers: Published online: December 2012 diversity, distribution and conservation. 25(6): 273-283. Editorial responsibility: Javier Alejandro Maldonado O. 1314