Your browser doesn't support javascript.
loading
Distribution of the cyanophyte Trichodesmium (Oscillatoriaceae) in the eastern Caribbean Sea: influence of the Orinoco River
Navarro, A; Corredtor, J. E; Morell, J; Armstrong, R. A.
  • Navarro, A; University of Puerto Rico. Sea Grant College Program. Mayaguez. PR
  • Corredtor, J. E; s.af
  • Morell, J; s.af
  • Armstrong, R. A; s.af
Rev. biol. trop ; 48(Supl.1): 115-124, dic. 2000.
Article in English | LILACS | ID: lil-503272
ABSTRACT
Orinoco River influence in the Caribbean Sea, characterized by high nutrient input, causes a decrease of Trichodesmium populations. The Caribbean Time Series (CaTS) station, south of Puerto Rico (17 degrees 36'N 67 degrees 00'W), was monitored for 25 months in order to observe the Trichodesmium abundance pattern and the presence of the river plume. In general, mean Trichodesmium abundance was higher at the surface and decreased with depth. The mean upper water column (surface to 20 m) abundance was 54.1 +/- 32.6 col/m3. Within the sampling period, abundance was highly variable (1-700 col/m3). Correlation between Trichodesmium abundance and wind speed (p=0.002), chlorophyll a concentration (p=0.001), nitrate (p=0.02) and silicate (p=0.003) concentrations were statistically significant. However, Trichodesmium abundance was not correlated with salinity (p=0.70), temperature (p=0.16) and seawater density (p=0.71) variations at CaTS. Eastern Caribbean regions highly influenced by the Orinoco River discharge were devoid of Trichodesmium colonies.
Subject(s)
Search on Google
Index: LILACS (Americas) Main subject: Seawater / Water Microbiology / Environmental Monitoring / Cyanobacteria / Rivers Language: English Journal: Rev. biol. trop Journal subject: Biology / Tropical Medicine Year: 2000 Type: Article Affiliation country: Puerto Rico Institution/Affiliation country: University of Puerto Rico/PR

Similar

MEDLINE

...
LILACS

LIS

Search on Google
Index: LILACS (Americas) Main subject: Seawater / Water Microbiology / Environmental Monitoring / Cyanobacteria / Rivers Language: English Journal: Rev. biol. trop Journal subject: Biology / Tropical Medicine Year: 2000 Type: Article Affiliation country: Puerto Rico Institution/Affiliation country: University of Puerto Rico/PR