Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
DOI:
https://doi.org/10.3989/scimar.2012.76n1029Keywords:
Pleuronectiformes, early development, larvae, flatfish, tonguefish, SW AtlanticAbstract
The larval development of Etropus longimanus and Symphurus trewavasae (Pleuronectiformes) off the Buenos Aires coast was described. Both species have an elongated body; however, as the total length of Etropus longimanus larvae increased, their body became deeper. In Symphurus trewavasae the intestine was noticeably coiled. In E. longimanus the notochord flexion started at 3.9 mm and was completed at 5.0 mm standard length (SL). Vertebral formation began in larvae with a 4.6 mm SL and the definitive number of vertebrae (34-39) was observed in larvae of 4.8 mm SL. The dorsal fin had two elongated rays and the pelvic fins had only one. In Symphurus trewavasae the notochord flexion began at 5.9 mm and was completed at 8.0 mm SL. Migration of the right eye was completed in the metamorphic stage at 10.5 mm SL. Vertebral column ossification finished in flexion larvae of 6-7 mm SL, with a total number of 48-50 vertebrae. Four elongated rays of similar length were observed on the dorsal fin.
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Aceves-Medina G., Gonzalez E.A., Saldierna R.J. 1999. Larval development of Symphurus williamsi (Cynoglossidae: Pleuronectiformes) from the Gulf of California. Fish. Bull. 97: 738-745.
Ahlstrom E.H., Amaoka K., Hensley DA., Moser H.G., Sumida BY. 1984. Pleuronectiformes: Development. In: Moser G., Richards W.J., Cohen D.M., Fahay M.P., Kendall A.W., Richardson S.L. (eds.), Ontogeny and Systematics of Fishes. Am. Soc. Ichthyol. 1: 670-687.
Cousseau M.B., Denegri M.A. 1997. Peces. In: Cousseau M.B. (ed.), Peces, crustáceos y moluscos registrados en el sector del Atlántico Sudoccidental comprendido entre 34° y 55° S, con indicación de las especies de interés pesquero. INIDEP INF. TEC. 5: 9-47, Mar del Plata.
Derisio C. 2004. Descripción de larvas y juveniles de Pleuronectiformes en el Mar Argentino. Tesis de Licenciatura. Univ. Mar del Plata, 72 pp.
Diaz de Astarloa J.M. 2002. The flatfish fisheries on both sides of the Atlantic Ocean. Thalassas. 18: 67-82.
Evseenko S.A. 1990. Unusual larvae of the marine tonguefish, Symphurus sp. (Cynoglossidae), from central waters of the eastern Pacific. J. Ichthyol. 30: 148-154. Traslated from Vopr. Ihtiol, 30: 682-686.
Evseenko S.A., Shtaut M.I. 2000. Early stages of development of two species of tongue soles- Symphurus chabanaudi and S. prolatinaris (Cynoglossidae, Pleuronectiformes) from central eastern Pacific. Vopr. Ihtiol. 40: 792-803.
Fabré N.N., Diaz de Astarloa J.M. 1996. Pleuronectiformes de importancia comercial en el sector del Atlántico Sudoccidental comprendido entre los 34o 30’ y 55oS. Distribución y consideraciones sobre la pesca. Rev. Inv. Des. Pesq. 10: 45-55.
Fabré N.N., Díaz de Astarloa J.M. 2001. Distributional patterns and abundance of paralichthyid flounders in the South-west Atlantic (Pleuronectiformes: Paralichthyidae). Thalassas. 17: 45-55.
Figueiredo J.L., Menezes N.A. 2000. Manual de peixes marinhos do sudeste do Brasil. VI. Teleostei (5). Mus. Zool. Univ. Sao Paulo, 116 pp.
Kurtz F.W., Matsuura Y. 1994. Early development of four tonguefishes of the Genus Symphurus (Osteichthyes: Cynoglossidae) from the Southern Brazil. Jpn. J. Ichthyol. 41: 141-148.
Menezes N., Benvegnu G.Q. 1976. On the species of the genus Symphurus from the Brazilian coast, with descriptions of two new species (Osteichthyes, Pleuronectiformes, Cynoglossidae). Pap. Avulsos. Zool. 30: 137-170.
Menni R.C., Ringuelet R.A., Aramburu R.H. 1984. Peces marinos de la Argentina y Uruguay. Hemisferio Sur, Buenos Aires, 359 pp.
Munroe T.A. 1992. Interdigitation pattern of dorsal-fin pterigiophores and neural spines, an important diagnostic for Symphurine tongues fishes (Symphurus: Cynoglossidae: Pleuronectiformes). Bull. Mar. Sci. 50: 357-403.
Munroe T.A. 1998. Systematics and ecology of tonguefishes of the genus Symphurus (Cynoglossidae: Pleuronectiformes) from the western Atlantic Ocean. Fish. Bull. 96: 1-182.
Munoz H., Herrera G., Fuentes H. 1988. Desarrollo larval del lenguado de ojos chicos Paralichthys microps. Rev. Biol. Mar. 24: 37-53.
Neira F.J., Miskiewicz A.G., Trnski T. 1998. Larvae of temperate Australian fishes. Laboratory guide for larval fish identification. University of Western Australia Press, 474 pp.
Nellen W., Hempel G. 1969. Versuche zur Fangigkeit des «Hai» und des modifizierten Gulf-V-plankton-sampler «Nackthai». Meeresforsch. 20: 141-154.
Potthoff T. 1984. Clearing and staining techniques. In: Moser G., Richards W.J., Cohen D M., Fahay MP., Kendall A.W., Richardson S.L. (eds.), Ontogeny and Systematics of Fishes. Am. Soc. Ichthyol. 1: 35-37.
Saldierna-Martínez R.J., Aceves-Medina G., González-Navarro E.A. 2010. Larval development of the sportfin tonguefish (Symphurus oligomerus) (Pleuronectiformes: Cynoglossidae) from the Gulf of California, México. Fish. Bull. 108: 45-55.
Sumida B.Y., Ahlstrom E.H., Moser H.G. 1979. Early development of seven flatfishes of the eastern North Pacific with heavily pigmented larvae (Pisces, Pleuronectiformes). Fish. Bull. 77: 105-145.
Taylor W.R., Van Dyke G.C. 1985. Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium 9: 107-119.
Trnski T., Leis T.M. 1991. A beginner’s guide to illustrating fish larvae. In: Hancock D. A. (ed.), Larval Biology. Bur. Rural Resour. Proc. Australian Government Printing Office, Canberra. 15: 198-202.
Tucker J.W. 1982. Larval development of Citharichthys cornutus, C. gymnorhinus, C. spilopterus, and Etropus crossotus (Bothidae), with notes on larval occurrence. Fish. Bull. 80: 35-73.
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