Notocotylus primulus n. sp. (Trematoda: Notocotylidae) from the crested duck Lophonetta specularioides (Aves, Anatidae) from Patagonian coast, southwestern Atlantic Ocean

2020 ◽  
Vol 74 ◽  
pp. 101976 ◽  
Author(s):  
Julia Inés Diaz ◽  
Carmen Gilardoni ◽  
Eliana Lorenti ◽  
Florencia Cremonte
Keyword(s):  
Atlantic Ocean ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Patagonian Coast

Monorchiid and aporocotylid cercariae (Digenea) parasitising the purple clam Amiantis purpurata (Bivalvia, Veneridae) from the Southwestern Atlantic coast

2011 ◽  
Vol 56 (4) ◽  
Author(s):  
Carmen Gilardoni ◽  
Guadalupe Posadas ◽  
Marina Kroeck ◽  
Florencia Cremonte
Keyword(s):  
Atlantic Ocean ◽  
Southern Hemisphere ◽  
Digestive Gland ◽  
Atlantic Coast ◽  
Southwestern Atlantic ◽  
First Report ◽  
Southwestern Atlantic Ocean ◽  
Patagonian Coast ◽  
Usual Site

AbstractTwo cercariae, one of them ocellate and with well developed tail (Monorchiidae) and another apharyngeate brevifurcocercous (Aporocotylidae), parasite of Amiantis purpurata (Lamarck, 1818) (Bivalvia, Veneridae) from the Patagonian coast on the Southwestern Atlantic Ocean, are described. These reports comprise the second monorchiid intramolluscan infection reported for the Southern Hemisphere and first intramolluscan aporocotylid for the Southern Hemisphere. In addition, this constitutes the first report of aporocotylid intramolluscan stages (parthenita) occupying only the haemocoel of the gills of a marine molluscan host rather than the digestive gland and gonad, the usual site of infection.

scholarly journals A survey of larval digeneans in the commonest intertidal snails from Northern Patagonian coast, Argentina

2011 ◽  
Vol 56 (2) ◽  
Author(s):  
Carmen Gilardoni ◽  
Jorge Etchegoin ◽  
Julia Diaz ◽  
Cristián Ituarte ◽  
Florencia Cremonte
Keyword(s):  
Atlantic Ocean ◽  
Intermediate Host ◽  
Snail Species ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Patagonian Coast ◽  
Intertidal Population ◽  
First Time ◽  
First Intermediate Host

AbstractOver a two-years period, a survey was carried out in order to increase the knowledge of digeneans parasitising the commonest intertidal gastropods on the Patagonian coast, Southwestern Atlantic Ocean. A total of 4,725 gastropods were examined. Six species of digenean parasitising four snail species were found; four of them were registered for first time: Maritrema sp. 1 (Microphallidae) in Crepidula dilatata (Calyptraeidae), Parorchis sp. (Philophtalmidae) and sporocyst of Renicolidae in Trophon geversianus (Muricidae), and Diphterostomum sp. (Zoogonidae) in Buccinanops globulosus (Nassariidae). Two other species were found in Siphonaria lessoni (Siphonariidae): Maritrema sp. 2 and Hemiuridae. One snail species, Tegula patagonica (Trochidae) was not parasitised. These gastropods act as first intermediate host, and C. dilatata, S. lessoni and B. globulosus also frequently host metacercariae within the sporocyst. Overall prevalences varied from 0.16% of Diphterostomum in the intertidal population of B. globulosus to 33.45% of Maritrema sp. 1 in C. dilatata.

Population structure and ontogenetic habitat use of Micropogonias furnieri in the Southwestern Atlantic Ocean inferred by otolith chemistry

2021 ◽  
Vol 240 ◽  
pp. 105953
Author(s):  
Esteban Avigliano ◽  
Nadia M. Alves ◽  
M. Rita Rico ◽  
Claudio O. Ruarte ◽  
Luciana D’Atri ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Otolith Chemistry ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Micropogonias Furnieri

scholarly journals Abundance and demography of bottlenose dolphins inhabiting a subtropical estuary in the Southwestern Atlantic Ocean

2015 ◽  
Vol 96 (2) ◽  
pp. 332-343 ◽  
Author(s):  
Pedro F. Fruet ◽  
Fábio G. Daura-Jorge ◽  
Luciana M. Möller ◽  
Rodrigo Cezar Genoves ◽  
Eduardo R. Secchi
Keyword(s):  
Atlantic Ocean ◽  
Bottlenose Dolphins ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Subtropical Estuary

Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

Zootaxa ◽  
2018 ◽  
Vol 4527 (1) ◽  
pp. 75
Author(s):  
LUCIANA MARTINS
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
First Record ◽  
Morphological Characters ◽  
Sem Analysis ◽  
Southwestern Atlantic ◽  
Internal Morphology ◽  
The Pacific ◽  
Southwestern Atlantic Ocean ◽  
The Pacific Ocean

The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided. 

Tissue distribution of heavy metals in small cetaceans from the Southwestern Atlantic Ocean

1990 ◽  
Vol 21 (6) ◽  
pp. 299-304 ◽  
Author(s):  
Jorge E. Marcovecchio ◽  
Víctor J. Moreno ◽  
Ricardo O. Bastida ◽  
Marcela S. Gerpe ◽  
Diego H. Rodríguez
Keyword(s):  
Heavy Metals ◽  
Atlantic Ocean ◽  
Tissue Distribution ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean

Two new species of Sclerothyone from the southwestern Atlantic Ocean, with a key to genera and species of Sclerothyoninae (Holothuroidea: Dendrochirotida: Sclerodactylidae)

Zootaxa ◽  
2019 ◽  
Vol 4658 (2) ◽  
pp. 375-382
Author(s):  
LUCIANA MARTINS ◽  
MARCOS TAVARES
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
South African ◽  
Body Wall ◽  
Circular Disc ◽  
Southwestern Atlantic ◽  
African Species ◽  
Southwestern Atlantic Ocean ◽  
Two New Species ◽  
Tube Feet

Sclerothyone Thandar, 1989, currently restricted to two South African species, is here expanded to include two new species from off coast of Brazil. These new species expand the distribution of the genus to the southwestern Atlantic Ocean. Sclerothyone reichi sp. nov. is characterized by having body wall with multilocular two pillared tables with multiperforate disc and short spire, ending in a narrow crown of teeth; tentacles with rods and introvert with two pillared tables and rosettes; tube feet with only end plates. Sclerothyone oloughlini sp. nov. is distinctive in having a body wall with multilocular, two pillared tables; handles present and multilocular two-pillared tables; circular disc without handle; and plates (near the anus). The new species resemble each other in the tentacles with rods. However, Sclerothyone oloughlini sp. nov. stands apart from S. reichi sp. nov. in the introvert with rosettes; tube feet with two pillared supporting tables, arched plates and end plates. The possible assignment of Cucumaria nozawai Mitsukuri, 1912 and Thyone adinopoda Pawson & Miller, 1981 to Sclerothyone, and the position of Thyone neofusus Deichmann, 1941 in Temparena Thandar, 1989, are briefly discussed. A key to all genera and species of Sclerodactylinae is provided.

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