Fatty acids as trophic markers of phytoplankton blooms in the Bahía Blanca estuary (Buenos Aires, Argentina) and in Trinity Bay (Newfoundland, Canada)

1997 ◽  
Vol 25 (8) ◽  
pp. 739-755 ◽  
Author(s):  
Guillermo E. Napolitano ◽  
Ricardo J. Pollero ◽  
Ana M. Gayoso ◽  
Bruce A. Macdonald ◽  
Raymond J. Thompson
Keyword(s):  
Fatty Acids ◽  
Buenos Aires ◽  
Phytoplankton Blooms ◽  
Bahía Blanca Estuary ◽  
Trophic Markers ◽  
Blanca Estuary ◽  
Trinity Bay

scholarly journals Radiocarbon Reservoir Ages and Hardwater Effect for the Northeastern Coastal Waters of Argentina

Radiocarbon ◽  
2008 ◽  
Vol 50 (1) ◽  
pp. 119-129 ◽  
Author(s):  
Eduardo A Gómez ◽  
C Marcela Borel ◽  
Marina L Aguirre ◽  
Daniel E Martínez
Keyword(s):  
Mass Spectrometry ◽  
Calibration Curve ◽  
Coastal Waters ◽  
Buenos Aires ◽  
Buenos Aires Province ◽  
Layer Model ◽  
Bahía Blanca Estuary ◽  
Radiocarbon Dates ◽  
The Difference ◽  
Blanca Estuary

Accelerator mass spectrometry (AMS) radiocarbon dates were obtained for 18 mollusk shells collected alive along the Buenos Aires province coast, Argentina, over the period AD 1914–1935. Reservoir ages were estimated for all samples on the basis of the tree-ring calibration curve for the Southern Hemisphere (SHCal04, McCormac et al. 2004) and the marine δR values calculated as the difference between the conventional 14C age and the age deduced from the marine, mixed-layer model calculation (Marine04, Hughen et al. 2004). For most coastal locations, a great δR scatter was observed, ranging from 191 to 2482 yr, which is explained by the input of varying content of dissolved carbonate by rivers and groundwater (“hardwater effect”) and indicates a serious limitation for shell-based 14C chronologies. Within the interior of Bahía Blanca estuary, δR values ranged from −40 to 50 ± 46 as a consequence of the local geological particularities of the environment. This suggests that, with some restrictions, the marine calibration curve with standard parameters (δR = 0) could be used at this location.

Description of Ptilohyale corinne sp. nov. (Amphipoda: Hyalidae) from the Bahía Blanca estuary, Argentina, including a key to all valid Ptilohyale species

Zootaxa ◽  
2020 ◽  
Vol 4763 (1) ◽  
pp. 125-137
Author(s):  
CATALINA DI ROSSI ◽  
MICHEL SCIBERRAS ◽  
VERONICA N. BULNES
Keyword(s):  
New Species ◽  
South America ◽  
Buenos Aires ◽  
First Record ◽  
Valid Species ◽  
Buenos Aires Province ◽  
Bahía Blanca Estuary ◽  
A New Species ◽  
Blanca Estuary

A new species of amphipod, Ptilohyale corinne sp. nov. (Hyalidae) is described from the Bahía Blanca estuary (38°53’S, 62°07’W) in Buenos Aires Province, Argentina. Ptilohyale corinne sp. nov. can be differentiated from its valid congeners by having two posterior marginal cusps on coxa 2 and 3, and asymmetrical telson lobes with a particular combination of setae: each lobe with three dorsal plumose setae and one seta on inner margin. This is the first record of Ptilohyale in South America. Additionally a key to the valid species of the genus is provided 

scholarly journals Medusae and ctenophores from the Bahía Blanca Estuary and neighboring inner shelf (Southwest Atlantic Ocean, Argentina)

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Sofía Dutto ◽  
Gabriel N. Genzano ◽  
Agustín Schiariti ◽  
Julieta Lecanda ◽  
Mónica S. Hoffmeyer ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Inner Shelf ◽  
Bahía Blanca Estuary ◽  
Southwest Atlantic ◽  
Blanca Estuary

Epidemiology of acanthocephalan infections in crabs from the Bahía Blanca Estuary, Argentina

2011 ◽  
Vol 86 (4) ◽  
pp. 446-452 ◽  
Author(s):  
L.F. La Sala ◽  
A.M. Perez ◽  
S.R. Martorelli
Keyword(s):  
Risk Factors ◽  
Carapace Length ◽  
Carapace Width ◽  
Infection Prevalence ◽  
Intensity Of Infection ◽  
Breeding Colony ◽  
Bahía Blanca Estuary ◽  
Feeding Area ◽  
Olrog’S Gull ◽  
Blanca Estuary

AbstractThis study was conducted in two populations of crabs, Cyrtograpsus angulatus and Neohelice granulata from the Bahía Blanca Estuary, in Argentina, to identify risk factors for infection by the acanthocephalan Profilicollis chasmagnathi and to assess the association between infection and mortality of these hosts. Cyrtograpsus angulatus and N. granulata crabs were sampled seasonally over the course of a year, and spring sampling included collection of dead crabs predated by Olrog's gulls in a nearby breeding colony. Potential risk factors for infection were assessed and the number of cystacanth larvae per crab was counted. In C. angulatus, the odds of infection increased by 7% for each millimetre increase in carapace length, and were nearly 17 times greater in crabs sampled from the Olrog's gull feeding area compared with those sampled from nests in the breeding colony. For every millimetre increase in carapace length in N. granulata, the odds of infection increased by 13% in crabs from the breeding colony, and by 32% in crabs from the feeding area. Mean intensity of infection in N. granulata increased by 16.5% for each additional millimetre of carapace width. The level of parasite aggregation was lowest in the largest C. angulatus and highest in N. granulata predated by Olrog's gull. The results show that host size is the most important factor influencing infection prevalence in both crab species and intensity of infection in N. granulata, and suggest the presence of parasite-induced mortality in the populations studied.

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