Results 61 to 70 of about 568 (115)

First record of the invasive medusa Blackfordia virginica (Hydrozoa: Leptomedusae) in the Río de la Plata estuary, Argentina-Uruguay Primer registro de la medusa invasora Blackfordia virginica (Hydrozoa: Leptomedusae) en el estuario del Río de la Plata, Argentina-Uruguay

open access: yesRevista Chilena de Historia Natural, 2006
Blackfordia virginica is a well-known invasive medusa inhabiting estuarine areas. It was recently detected in northern Argentina, constituting the first record of invasive hydromedusa for the Argentine Sea.
GABRIEL GENZANO   +3 more
doaj  

Moluscos marinos bentónicos del Cuaternario de Bahía Anegada (sur de Buenos Aires, Argentina): variaciones faunísticas en el Pleistoceno tardío y Holoceno

open access: yesRevista Mexicana de Ciencias Geológicas, 2014
A lo largo del área costera del Atlántico sudoccidental se observan depósitos marinos que representan los dos últimos eventos transgresivos del Cuaternario (Pleistoceno tardío y Holoceno). La región de Bahía Anegada, sur de la provincia de Buenos Aires,
Melisa P. Charó   +2 more
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Diferencias interpoblacionales en el ciclo reproductivo femenino del cangrejo estuárico Chasmagnathus granulatus Dana, 1851 (Brachyura: Grapsoidea: Varunidae) del Atlántico sudoccidental

open access: yes, 2006
The female reproductive biology of Chasmagnathus granulatus Dana, a semiterrestrial burrowing crab endemic to the southwestern Atlantic, was compared in two contrasting coastal habitats: San Antonio (SA, marine) and Mar Chiquita (MC, estuarial).
Ituarte, Romina B.   +3 more
core   +2 more sources

Changes in population structure and growth of skipjack tuna, Katsuwonus pelamis during 30 years of exploitation in the southwestern Atlantic

open access: yesLatin American Journal of Aquatic Research, 2014
The skipjack tuna is the main tuna species caught in Brazil with pole and live-bait. Samples taken during 1984-1986 and the 2004-2009 periods provided length, weight and age data.
Thais Garbin, Jorge P. Castello
doaj  

On the occurrence of Obelia medusa blooms and empirical evidence of unusual massive accumulations of Obelia and Amphisbetia hydroids on the Argentina shoreline Bloom de la medusa Obelia y evidencia empírica de una inusual acumulación masiva de hidroides de Obelia y Amphisbetia en la línea de costa en Argentina

open access: yesLatin American Journal of Aquatic Research, 2008
Medusa blooms are a scarcely known phenomenon. For temperate, southwestern Atlantic waters, reports of such events are almost nonexistent. This research reports the analysis of a total of 1043 plankton samples taken from 1993 to 2006 and benthic samples ...
Gabriel Genzano   +3 more
doaj  

Evaluación comparativa de las actividades de las enzimas digestivas de cinco especies de peces del Océano Atlántico Sudoccidental

open access: yes
Due to the scarcity of data cited in the literature, digestive enzyme profiles of fish species from the southwestern Atlantic Ocean are of particular interest.
Rodriguez, Yamila Eliana   +5 more
core   +2 more sources

Deep-water fisheries in Brazil: history, status and perspectives Pesquerías de aguas profundas en Brasil: historia, situación actual y perspectivas

open access: yesLatin American Journal of Aquatic Research, 2009
The recent development of deep-water fisheries off Brazil is reviewed from biological, eco-nomic, and political perspectives. This process has been centered in the southeastem and southern sectors of the Brazilian coast (19°-34°S) and was motivated by ...
José Angel Alvarez Perez   +3 more
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Distribución, abundancia relativa y alimentación de pintarroja Schroederichthys bivius Müller & Henle, 1838 en el Océano Atlántico sudoccidental

open access: yes, 2009
La pintarroja, Schroederichthys bivius, es un pez cartilaginoso que se distribuye en el Atlántico sudoccidental, entre las latitudes 34°S y 54°S, y a profundidades entre 45 y 350 m.
Bernardele, Juan C.   +2 more
core  

First record of the association between Lychnorhiza lucerna (Scyphozoa, Rhizostomeae) and Cyrtograpsus affinis (Decapoda, Varunidae) Primer registro de la asociación entre Lychnorhiza lucerna (Scyphozoa, Rhizostomeae) y Cyrtograpsus affinis (Decapoda, Varunidae)

open access: yesLatin American Journal of Aquatic Research, 2012
We report the association between the jellyfish Lychnorhiza lucerna and the crab Cyrtograpsus affinis. Numerous examples of associations between medusae and brachyurans have been observed in the field and noted in the literature.
Agustín Schiariti   +3 more
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Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic Estudios del bentos de arrecifes naturales y artificiales de Mar del Plata, Argentina, Atlántico sudoccidental

open access: yesLatin American Journal of Aquatic Research, 2011
This study describes the macrofaunal assemblages of subtidal rocky reefs off Mar del Plata in order to compare the macro invertebrate assemblages settled on shipwrecks with those of nearby reef sand to characterize the fish fauna associated with natural (
Gabriel Genzano   +2 more
doaj  

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