Distribution and abundance of hydrobiid snails in a mixed estuary and a coastal lagoon, Argentina

Francesco, Claudio G. De; Isla, Federico Ignacio

doi:10.1007/bf02711989

Cited by 51 publications

(33 citation statements)

References 20 publications

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“…According to De Francesco and Isla (2003), salinity would constitute the most influential parameter determining the distribution of the Heleobia species. Those authors observed that H. parchappii demonstrated a conductivitytolerance range of 4 to 34‰ and concluded that the species was highly resistant to the salinity of the estuarine and continental waters (Rodrigues Capítulo et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Mollusks (Gastropoda and Bivalvia) of the Multiple-Use Reserve Martín García Island, Río de la Plata River: biodiversity and ecology

et al. 2012

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The Island of Martin Garcia is located in the Upper Río de la Plata, to the south of mouth the Uruguay River. The aim of the present study was to analyse the biodiversity of the island freshwater mollusks and their relationships to environmental variables. Twelve sampling sites were selected, five were along the littoral section of the island and seven were Inland ponds. Seven major environmental variables were measured: water and air temperature, percentage of oxygen saturation, dissolved oxygen, electrical conductivity, total dissolved solids and pH. Twenty-seven mollusk species were found, Antillorbis nordestensis, Biomphalaria tenagophila tenagophila, B. t. guaibensis, B. straminea, B. peregrina, Drepanotrema kermatoides, D. cimex, D. depressissimum, Chilina fluminea, C. rushii, C. megastoma, Uncancylus concentricus, Hebetancylus moricandi, Stenophysa marmorata, Heleobia piscium, H. parchappii, Potamolithus agapetus, P. buschii, P. lapidum, Pomacea canaliculata, P. megastoma, Asolene platae, Corbicula fluminea, Eupera platensis, Pisidium sterkianum, P. taraguyense and Limnoperna fortunei. UPGMA clustering of species based on their occurrence in different ecological conditions revealed two main species groups. The Canonical Correspondence Analysis suggests that the species distribution is related to the physico-chemical condition of water. Axis two of the ordination diagram displayed the approximately 95.6% of the correlation between species and environmental variables. Dissolved oxygen, conductivity, water temperature and pH showed the highest fluctuations during the sampling period. The species richness (S) showed relationships mainly with water temperature and conductivity. The biodiversity of the gastropods and bivalves from Martín García Island amounts to up to 26 species. Among the Gastropoda, the Planorbidae family made the most sizeable contribution. The Lithogliphidae P. agapetus (26.28%) and P. buschii (9.50%) showed the highest relative frequencies of occurrence within the littoral environments, while the Planorbidae D. cimex (23.83%) and D. kermatoides (11.59%) likewise did so in the inland ponds.Keywords: biodiversity, CCA, ecology, mollusks, Martín García Island. Moluscos (Gastropoda e Bivalvia) da Reserva Natural de Usos MúltiplosIlha Martín García, Rio de La Plata: biodiversidade e ecologia Resumo A Ilha de Martín García está localizada na parte alta do Rio de la Plata, ao sul da desembocadura do Rio Uruguay. Este estudo tem como objetivo analisar a biodiversidade dos moluscos de água doce da ilha e sua relação com variáveis ambientais. Doze pontos de amostragem foram selecionados: cinco foram ao longo da seção litoral da ilha e sete em lagunas interiores. Sete variáveis ambientais foram medidas: temperatura da água e do ar, porcentagem de saturação de oxigênio, oxigênio dissolvido, condutividade elétrica, sólidos totais dissolvidos e pH. Vinte e seis espécies de moluscos foram encontrados: Antillorbis nordestensis, Drepanotrema kermatoides, D. cimex, D. depressissimum, Biomphalari...

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Section: Discussionmentioning

confidence: 99%

Mollusks (Gastropoda and Bivalvia) of the Multiple-Use Reserve Martín García Island, Río de la Plata River: biodiversity and ecology

et al. 2012

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“…The Quequén Grande estuary (38°34'S, 58°43'W) is carved into gorges of 150-200 m width, and has a mean depth of 2-3 m (De Francesco and Isla, 2003) increasing to more than 10 m to the area dredged at the inlet (Quequén Harbor). An artificial step induces sedimentation and internal waves within the harbor (Perillo et al, 2005).…”

Section: Settingmentioning

confidence: 99%

ENSO-dominated estuaries of Buenos Aires: The interannual transfer of water from Western to Eastern South America

Isla

2008

Global and Planetary Change

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“…Heleobia australis (d´Orbigny, 1835) is a small marine snail that comprises a major biotic component of the fauna in estuaries (De Francesco and Isla 2003) from Rio de Janeiro (Brazil) to San Antonio Oeste (Argentina) (Gaillard and Castellanos 1976). The genus Heleobia Stimpson, 1865, a member of the family Cochliopidae Tryon, 1866, is phylogenetically close to the cosmopolitan family Hydrobiidae Stimpson, 1865 (Wilke et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Larval trematodes infecting the South-American intertidal mud snail Heleobia australis (Rissooidea: Cochliopidae)

Alda

Martorelli

2014

Acta Parasitologica

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Larval trematodes infecting the snail Heleobia australis (Cochliopidae) from the Bahía Blanca estuary, Argentina were surveyed for two years. A total of 7,504 snail specimens was dissected and the larval stages of 15 different trematodes were recovered and examined morphologically. These larvae included four species that had previously been reported from H. australis in Brazil, Uruguay, and Argentina: the heterophyid Ascocotyle (Phagicola) longa and the microphallids, Maritrema bonaerense, Maritrema orensense, and Microphallus simillimus. Three other species, the echinostomatid Stephanoprora uruguayensis, the microphallid Levinseniella cruzi, and the psilostomid Psilochasmus oxyurus are reported here for the first time as parasites of H. australis. Eight other trematodes found in H. australis are described and placed in the appropriate superfamilies, families or genera (Cryptogonimidae, Apocreadiidae, Aporocotylidae, Notocotylidae, Haploporidae, Renicolidae, Himasthla, and Renicola). The prevalence of the trematode taxa infecting H. australis in the Bahía Blanca estuary was low (<3%) with a single exception (M. simillimus; >20%). Microphallidae were the richest and the most prevalent family, probably because of the high abundance of crabs -the second-intermediate hosts of certain microphallid species -and the considerable diversity of gulls. Here we compare the parasite assemblage found in the H. australis from Bahía Blanca estuary with other parasite assemblages infecting Heleobia spp. and other rissooids from the rest of the world.

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Distribution and abundance of hydrobiid snails in a mixed estuary and a coastal lagoon, Argentina

Cited by 51 publications

References 20 publications

Mollusks (Gastropoda and Bivalvia) of the Multiple-Use Reserve Martín García Island, Río de la Plata River: biodiversity and ecology

Mollusks (Gastropoda and Bivalvia) of the Multiple-Use Reserve Martín García Island, Río de la Plata River: biodiversity and ecology

ENSO-dominated estuaries of Buenos Aires: The interannual transfer of water from Western to Eastern South America

Larval trematodes infecting the South-American intertidal mud snail Heleobia australis (Rissooidea: Cochliopidae)

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