Composition and seasonality of an amphipod community associated to the algae Bryocladia trysigera
Braz. j. biol
;
62(4a): 735-742, Nov. 2002. mapas, tab, graf
Article
in English
| LILACS
| ID: lil-335630
RESUMO
The monthly fluctuations of amphipods associated to the algae Bryocladia trysigera was described from March 1997 to February 1998 at the rocky shore known as Poço de Anchieta in the Peruíbe Beach, Itanhaém, Southeastern Brazil. A total of 75,344 individuals were sampled, belonging to 10 species and 9 families. Three species dominated the phytal in number Hyale nigra, Caprella danileviskii and Caprella penantis. Despite the alternation in dominance of the 3 most abundant species, the amphipod species composition remained generally unchanged, so that the majority of the species were observed in all sampling months. The temporally changing pattern of the community structure, with a decline in amphipod abundance in winter followed by an increase in spring, was probably due to a higher predation pressure in winter period
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Seasons
/
Population Density
/
Ecosystem
/
Amphipoda
/
Eukaryota
Type of study:
Risk factors
Limits:
Animals
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. j. biol
Journal subject:
Biology
Year:
2002
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Presbiteriana Mackenzie/BR
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