Vol 5 Num 1




Oligochaeta (Annelida, Clitellata) species richness in two reservoirs of the Tietê river

Paulo Augusto Zaitune Pamplin

Universidade Federal de São Carlos, Departamento de Ecologia e Biologia Evolutiva
Via Washington Luís km 235, C.E.P. 13565-905, São Carlos, SP, Brasil
email: doro@power.ufscar.br

Odete Rocha

Universidade Federal de São Carlos, Departamento de Ecologia e Biologia Evolutiva
Via Washington Luís km 235, C.E.P. 13565-905, São Carlos, SP, Brasil
Mercedes Marchese

Instituto Nacional de Limnología (INALI-CONICET-UNL)
Rua José Maciá 1933, (3016) Santo Tomé (Santa Fe), Argentina

keywords
Geographic distribution, advertisement call, Leptodactylus mystaceus

publication date: 01-01-2005





Abstract
The species richness of Oligochaeta was evaluated in two reservoirs belonging to Tietê River system, Bariri and Ponte Nova reservoirs. 360 sediment samples were taken in each reservoir at 90 sampling stations using a Van Veen grab (378cm2), in the months January, April, July and October 2001. A total of 12,826 oligochaete specimens were collected, belonging to 20 species, 10 genera and 4 families. The family and genus with the highest species richness were Naididae and Dero, with 14 and 9 species, respectively. Among all species identified 6 occurred in both reservoirs, being Branchiura  sowerbyi  (Tubificidae) the most abundant species in them. The study also revealed that most Oligochaeta species are rare and have accidental occurrence, thus evidencing that for a better knowledge of species richness is actually necessary a great sampling effort including a large number of sampling points.

how to quote this paper
Pamplin, P. A. Z.; Rocha, O. and Marchese, M. Oligochaeta (Annelida, Clitellata) species richness in two reservoirs of the Tietê river (São Paulo). Biota Neotrop.  Jan/Jun 2005, vol. 5, no. 1. http://www.biotaneotropica.org.br/v5n1/pt/abstract?article+BN00605012005 . ISSN 1676-0603

Cited species
check for this species in other resources Allonais  lairdi 
check for this species in other resources Allonais  paraguayensis 
check for this species in other resources Bothrioneurum  americanum 
check for this species in other resources Branchiura  sowerbyi 
check for this species in other resources Brinkhurstia  americanus 
check for this species in other resources Dero  furcatus 
check for this species in other resources Dero  lodeni 
check for this species in other resources Dero  botrytis 
check for this species in other resources Dero  digitata 
check for this species in other resources Dero  evelinae 
check for this species in other resources Dero  multibranchiata 
check for this species in other resources Dero  nivea 
check for this species in other resources Dero  obtusa 
check for this species in other resources Dero  pectinata 
check for this species in other resources Haemonais  waldvogeli 
check for this species in other resources Limnodrilus  hoffmeisteri 
check for this species in other resources Limnodrilus  udekemianus 
check for this species in other resources Opistocysta  funiculus 
check for this species in other resources Pristina  americana 
check for this species in other resources Slavina  evelinae 



Fundação de Amparo à Pesquisa do Estado de São Paulo, Fapesp
Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq
Centro de Referência em Informação Ambiental, CRIA
© BIOTA NEOTROPICA, 2005