Breeding Biology of Olrog's Gull in Bahía Blanca Estuary, Argentina

2011 ◽  
Vol 123 (2) ◽  
pp. 243-250 ◽  
Author(s):  
Luciano F. La Sala ◽  
Andrés Perez ◽  
Sergio Martorelli ◽  
Judit Smits
Keyword(s):  
Breeding Biology ◽  
Bahía Blanca Estuary ◽  
Olrog’S Gull ◽  
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.

Some Digeneans from Olrog's Gull Larus atlanticus Olrog, 1958 (Aves: Laridae) from the Bahía Blanca Estuary, Argentina

2009 ◽  
Vol 76 (1) ◽  
pp. 113-116 ◽  
Author(s):  
Luciano F. La Sala ◽  
Sergio R. Martorelli ◽  
Pilar Alda ◽  
Paula Marcotegui
Keyword(s):  
Bahía Blanca Estuary ◽  
Olrog’S Gull ◽  
Blanca Estuary

Some Nematodes from Olrog's Gull, Larus atlanticus Olrog, 1958 (Aves: Laridae), and Prey Crabs from the Bahía Blanca Estuary, Argentina

2009 ◽  
Vol 76 (2) ◽  
pp. 293-296 ◽  
Author(s):  
Luciano F. La Sala ◽  
Julia I. Diaz ◽  
Sergio R. Martorelli ◽  
Pilar Alda
Keyword(s):  
Bahía Blanca Estuary ◽  
Olrog’S Gull ◽  
Blanca Estuary

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

Coastal Environments in the Bahía Blanca Estuary, Argentina

2016 ◽  
pp. 205-224 ◽  
Author(s):  
Paula Daniela Pratolongo ◽  
María Julia Piovan ◽  
Diana Graciela Cuadrado
Keyword(s):  
Coastal Environments ◽  
Bahía Blanca Estuary ◽  
Blanca Estuary

The Intertidal Meiobenthos of the Bahía Blanca Estuary

2021 ◽  
pp. 153-178
Author(s):  
Verónica N. Bulnes ◽  
Agustín G. Menechella ◽  
Kevin A. Rucci ◽  
Michel Sciberras
Keyword(s):  
Bahía Blanca Estuary ◽  
Blanca Estuary
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