Artículo
Morphological-behavioral adaptations of two benthic invertebrate species to face strong bed hydrodynamic forces in a large South-American river
Blettler, Martin Cesar Maria
; Eberle Folmer, Eliana Gisel
; Bullo Rodrigo, Juan Manuel; Ezcurra, Ines Delia
; Amsler, Mario Luis
Fecha de publicación:
06/2014
Editorial:
Elsevier
Revista:
Ecohydrology & Hydrobiology
ISSN:
1642-3593
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This scientific communication describes and discusses morphological–behavioral adaptations to flow of two benthic invertebrate species to survive in highly turbulent habitats of the large Paraguay River (Argentina – Paraguay). It is based on field and laboratory observations under microscope made during the performance of usual researches. In this sense, we found that Djalmabatista sp. 1 (Chironomidae, Tanypodinae) ballasts its body by ingestion of fine sediment grains which storage into a dorsal bulge, herein called “dorsal bag”. This specie would have the ability to take or release these grains according to the surrounding hydrodynamic conditions. Otherwise, the juvenile stage of Limnoperna fortunei (Bivalvia, Mytilidae) also ballasts its body but attaching sand grains through the byssal threads.
Palabras clave:
Adaptations to Flow
,
Djalmabatista Sp.
,
Limnoperna Fortunei
,
Large Rivers
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INALI)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Citación
Amsler, Mario Luis; Ezcurra, Ines Delia; Eberle Folmer, Eliana Gisel; Bullo Rodrigo, Juan Manuel; Blettler, Martin Cesar Maria; Morphological-behavioral adaptations of two benthic invertebrate species to face strong bed hydrodynamic forces in a large South-American river; Elsevier; Ecohydrology & Hydrobiology; 14; 2; 6-2014; 152-156
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