Similarity in parasite communities of the teleost fish Pinguipes brasilianus in the southwestern Atlantic: Infracommunities as a tool to detect geographical patterns

2010 ◽  
Vol 40 (2) ◽  
pp. 243-254 ◽  
Author(s):  
Juan T. Timi ◽  
Ana L. Lanfranchi ◽  
José L. Luque
Keyword(s):  
Teleost Fish ◽  
Southwestern Atlantic ◽  
Geographical Patterns ◽  
Parasite Communities

Ecotonal marine regions – ecotonal parasite communities: helminth assemblages in the convergence of masses of water in the southwestern Atlantic Ocean

2016 ◽  
Vol 46 (12) ◽  
pp. 809-818 ◽  
Author(s):  
Ana L. Lanfranchi ◽  
Paola E. Braicovich ◽  
Delfina M.P. Cantatore ◽  
Ana J. Alarcos ◽  
José L. Luque ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Southwestern Atlantic ◽  
Parasite Communities ◽  
Southwestern Atlantic Ocean

scholarly journals Feeding ecology of elasmobranch species in southeastern Brazil

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
Alessandra F. Viana ◽  
Jean L. Valentin ◽  
Marcelo Vianna
Keyword(s):  
Feeding Ecology ◽  
Teleost Fish ◽  
The Other ◽  
Southeastern Brazil ◽  
Trophic Groups ◽  
Southwestern Atlantic ◽  
Southern Coast ◽  
Southwestern Atlantic Ocean ◽  
Elasmobranch Species ◽  
Age And Sex

ABSTRACT The feeding ecology of five elasmobranch species was studied on the southern coast of Rio de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom longline between January 2006 and August 2007. The diets of Psammobatis rutrum and Psammobatis extenta appeared to be basically carcino-benthophagous, with a very small niche width. Rioraja agassizii was basically carcino/ichthyo-benthophagous, also with a narrow niche, including teleost fish and shrimp, but in different proportions according to age and sex. Rhizoprionodon lalandii was ichthyophagous, not influenced by age or sex. The analyses of these species and Atlantoraja cyclophora indicated two trophic groups: one composed of the smaller rays, P. extenta and P. rutrum, which basically fed on small crustaceans, polychaetes and nematodes; and the other of R. lalandii and the larger rays R. agassizii and A. cyclophora, which preyed on teleost fish and brachyurans.

Is there a regional culture in Russia? Opportunities of using a sociocultural approach in economics

2020 ◽  
pp. 108-126 ◽  
Author(s):  
V. A. Bryzgalin ◽  
Е. N. Nikishina
Keyword(s):  
Far East ◽  
Cross Cultural ◽  
Regional Culture ◽  
Russian Regions ◽  
Geographical Patterns ◽  
Cross Cultural Differences ◽  
The Far East ◽  
Sociocultural Approach ◽  
Critical Issues ◽  
Russian Universities

The paper investigates cross-cultural differences across Russian regions using the methodology of G. Hofstede. First, it discusses the most common approaches in measuring culture and the application of the Hofstede methodology in subnational studies. It identifies the critical issues in measuring culture at the regional level and suggests several strategies to address them. Secondly, the paper introduces subregional data on individualism and uncertainty avoidance using a survey of students across 27 Russian universities. The data allow to establish geographical patterns of individualism in Russia. It is demonstrated that collectivism is most prevalent in the Volga region, while individualism characteristic becomes stronger towards the Far East. The findings are robust to the inclusion of various controls and different specifications of the regression model. Finally, the paper provides a discussion about the potential of applying the sociocultural approach in economics.

Metazoan Parasites and Health State of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae), From Tonga Lake and El Mellah Lagoon in the Northeast of Algeria

2018 ◽  
Vol 52 (4) ◽  
pp. 279-288 ◽  
Author(s):  
F. Bakaria ◽  
S. Belhaoues ◽  
N. Djebbari ◽  
M. Tahri ◽  
I. Ladjama ◽  
...  
Keyword(s):  
Brackish Water ◽  
Parasite Species ◽  
Anguilla Anguilla ◽  
European Eel ◽  
Health State ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
High Dominance ◽  
Argulus Foliaceus

Abstract The aim of the study was to examine metazoans parasite communities of European eels (Anguilla anguilla) in freshwater (Tonga Lake) and brackish water (El Mellah lagoon) in the northeast of Algeria. Six parasite taxa were collected: one monogenean, Pseudodactylogyrus sp.; two crustaceans, Ergasilus sp. and Argulus foliaceus; two nematodes, Cucullanus sp. and Anguillicola crassus; one cestode, Bothriocephalus claviceps. Th e most prevalent parasite taxa in freshwater were Pseudodactylogyrus sp., A. crassus and Bothriocephalus claviceps; whereas in the brackish water, eels were infected mainly with A. crassus. Th e characteristics of the parasite component community structure revealed low parasite species diversity and high dominance values in eels from the two localities. Both communities were dominated by a single parasite species: Tonga eels by the monogenean Pseudodactylogyrus sp. and El Mellah lagoon eels by the nematode A. crassus, verified by high Berger-Parker dominance values of 0.76 and 0.87 respectively.

A New Species of Parmaturus (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Brazil, Southwestern Atlantic

Copeia ◽  
2019 ◽  
Vol 107 (2) ◽  
pp. 314 ◽  
Author(s):  
Karla Diamantina De Araújo Soares ◽  
Marcelo Rodrigues De Carvalho ◽  
Paulo Ricardo Schwingel ◽  
Otto Bismarck Fazzano Gadig
Keyword(s):  
New Species ◽  
Southwestern Atlantic ◽  
A New Species

scholarly journals A new species of Trichopeltarion A. Milne-Edwards, 1880, from the Southwestern Atlantic (Crustacea: Brachyura: Atelecyclidae)

2005 ◽  
Vol 45 (18) ◽  
pp. 235-242 ◽  
Author(s):  
Marcos Tavares ◽  
Gustavo Augusto S. de Melo
Keyword(s):  
New Species ◽  
Southwestern Atlantic ◽  
A New Species

A new species of Trichopeltarion A. Milne-Edwards, 1880, is described from off coast of Brazil, namely Trichopeltarion pezzutoi n. sp. The new species is compared to its Atlantic congeners, Trichopeltarion nobile A. Milne-Edwards, 1880, and Trichopeltarion intesi (Crosnier, 1981). The record of T. nobile from Brazil should actually be attributed to T. pezzutoi n. sp. The differences between the genera Trichopeltarion and Peltarion Jacquinot, 1847 are discussed.

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