scholarly journals Is Amphiorchis (Digenea: Spirorchiidae) an exclusive parasite of sea turtles?

2019 ◽  
Vol 56 (1) ◽  
pp. 75-80 ◽  
Author(s):  
E. Palumbo ◽  
M. R. Werneck ◽  
J. I. Diaz
Keyword(s):  
Sea Turtles ◽  
Freshwater Turtle ◽  
Rio De La Plata ◽  
Río De La Plata ◽  
Parasitic Fauna ◽  
Brackish Waters ◽  
Marine Turtles ◽  
La Plata ◽  
First Time

SummaryThe side-necked turtle Hydromedusa tectifera commonly inhabits the tributary streams of the Rio de La Plata and occasionally is found in brackish waters within the estuary of the Rio de La Plata. Few studies have been conducted on its parasitic fauna, especially in Argentina. In the present work Amphiorchis sp. is registered for the first time in a freshwater turtle, expanding the knowledge about the specificity of the genus that until now was considered inhabiting only marine turtles.

Habitat use, site fidelity and conservation opportunities for juvenile loggerhead sea turtles in the Río de la Plata, Argentina

2016 ◽  
Vol 163 (1) ◽  
Author(s):  
Victoria González Carman ◽  
Ignacio Bruno ◽  
Sara Maxwell ◽  
Karina Álvarez ◽  
Diego Albareda ◽  
...  
Keyword(s):  
Habitat Use ◽  
Site Fidelity ◽  
Sea Turtles ◽  
Rio De La Plata ◽  
Loggerhead Sea Turtles ◽  
Río De La Plata ◽  
La Plata

scholarly journals Seasonal composition, abundance and biomass of the subestuarine fish assemblage in Solís Chico (Río de la Plata estuary, Uruguay)

2016 ◽  
Vol 77 (3) ◽  
pp. 622-631 ◽  
Author(s):  
A. Acuña Plavan ◽  
R. Gurdek ◽  
N. Muñoz ◽  
J. M. Gutierrez ◽  
M. Spósito ◽  
...  
Keyword(s):  
Fish Assemblage ◽  
Fish Community ◽  
Abundant Species ◽  
Estuarine Fish ◽  
Rio De La Plata ◽  
Río De La Plata ◽  
La Plata ◽  
Juvenile Stages ◽  
Micropogonias Furnieri ◽  
First Time

Abstract The large estuaries can present long narrow branches called subestuaries or tidal creeks. These types of subsystems are distributed along the Uruguayan coast of the Río de la Plata estuary and are very important as nursery and refuge areas for fish. For the first time, the seasonal composition and abundance of the fish community of the Solís Chico subestuary was studied by using beach and gill nets. Fourteen species, mainly euryhaline (86%) presented a significant representation of juvenile stages. The fish community was dominated by Odontesthes argentinensis, Platanichthys platana, Mugil liza, Brevoortia aurea, Micropogonias furnieri and Paralichthys orbignyanus, similar to adjacent subestuaries. While Micropogonias furnieri and B. aurea were the most abundant species, some other species were rarely caught. A seasonal variation of the fish assemblage abundance was detected, with higher values in autumn showing a positive correlation with temperature. Species that complete their life cycle in the Río de la Plata estuary, some of which are relevant to fisheries (64% of the analyzed species) were captured in the Solís Chico subestuary. The importance of this environment as a transitional system for some estuarine fish species is advised.

Paleoecology and Geochronology of Uruguayan Coastal Marine Pleistocene Deposits

2001 ◽  
Vol 55 (2) ◽  
pp. 246-254 ◽  
Author(s):  
Sergio Martı́nez ◽  
Martı́n Ubilla ◽  
Mariano Verde ◽  
Daniel Perea ◽  
Alejandra Rojas ◽  
...  
Keyword(s):  
Rio De La Plata ◽  
Quaternary Deposits ◽  
Río De La Plata ◽  
La Plata ◽  
Coastal Marine ◽  
Quaternary Stratigraphy ◽  
Lithostratigraphic Units ◽  
Oxygen Isotopic ◽  
First Time

AbstractMinimum radiocarbon ages of marine Pleistocene molluscs from Uruguay range from 29,500±600 to 35,500±1900 14C yr B.P. Because knowledge of the marine Quaternary stratigraphy of Uruguay remains inadequate, no attempt is made to correlate between these deposits and recognized lithostratigraphic units. Analysis of the temperature and salinity ranges of the various molluscs suggests the establishment of a poly-euhaline fauna that inhabited waters warmer than present at the same latitude. This is supported by a northward retreat in the recent distribution of Chrysallida cf. C. gemmulosa, Nioche subrostrata, and probably Anomalocardia brasiliana. These marine Pleistocene deposits can probably be correlated with the last interglaciation (oxygen-isotopic substage 5e). At that time the fluvial-marine front of the Rio de la Plata was displaced much further northwestward than previously supposed. Chrysallida cf. C. gemmulosa and Limaria sp. are recorded in Uruguayan Quaternary deposits for the first time.

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