Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina

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 intestin...

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Autores principales: Derisio, C., Betti, P., de Astarloa, J.M.D., Machinandiarena, L.
Formato: JOUR
Lenguaje:English; Spanish
Materias:
Early development
Flatfish
Larvae
Pleuronectiformes
SW Atlantic
Tonguefish
flatfish
larval development
vertebrate
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Cynoglossidae
Etropus longimanus
Paralichthyidae
Symphurus trewavasae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02148358_v76_n1_p29_Derisio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02148358_v76_n1_p29_Derisio
record_format dspace
spelling todo:paper_02148358_v76_n1_p29_Derisio2023-10-03T15:10:17Z Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina Derisio, C. Betti, P. de Astarloa, J.M.D. Machinandiarena, L. Early development Flatfish Larvae Pleuronectiformes SW Atlantic Tonguefish flatfish larval development vertebrate Argentina Atlantic Ocean Atlantic Ocean (Southwest) Buenos Aires [Argentina] Cynoglossidae Etropus longimanus Paralichthyidae Pleuronectiformes Symphurus trewavasae 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. Fil:Betti, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR English; Spanish info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02148358_v76_n1_p29_Derisio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English; Spanish
orig_language_str_mv English; Spanish
topic Early development
Flatfish
Larvae
Pleuronectiformes
SW Atlantic
Tonguefish
flatfish
larval development
vertebrate
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Cynoglossidae
Etropus longimanus
Paralichthyidae
Pleuronectiformes
Symphurus trewavasae
spellingShingle Early development
Flatfish
Larvae
Pleuronectiformes
SW Atlantic
Tonguefish
flatfish
larval development
vertebrate
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Cynoglossidae
Etropus longimanus
Paralichthyidae
Pleuronectiformes
Symphurus trewavasae
Derisio, C.
Betti, P.
de Astarloa, J.M.D.
Machinandiarena, L.
Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
topic_facet Early development
Flatfish
Larvae
Pleuronectiformes
SW Atlantic
Tonguefish
flatfish
larval development
vertebrate
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Cynoglossidae
Etropus longimanus
Paralichthyidae
Pleuronectiformes
Symphurus trewavasae
description 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.
format JOUR
author Derisio, C.
Betti, P.
de Astarloa, J.M.D.
Machinandiarena, L.
author_facet Derisio, C.
Betti, P.
de Astarloa, J.M.D.
Machinandiarena, L.
author_sort Derisio, C.
title Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
title_short Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
title_full Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
title_fullStr Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
title_full_unstemmed Larval development of Etropus longimanus (Paralichthyidae) and Symphurus trewavasae (Cynoglossidae) off the Buenos Aires coast, Argentina
title_sort larval development of etropus longimanus (paralichthyidae) and symphurus trewavasae (cynoglossidae) off the buenos aires coast, argentina
url http://hdl.handle.net/20.500.12110/paper_02148358_v76_n1_p29_Derisio
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AT deastarloajmd larvaldevelopmentofetropuslongimanusparalichthyidaeandsymphurustrewavasaecynoglossidaeoffthebuenosairescoastargentina
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