Pseudo-nitzschia blooms often occur in coastal and open ocean environments, sometimes leading to the production of the neurotoxin domoic acid that can cause severe negative impacts to higher trophic levels. Increasing evidence suggests a close relationship between phytoplankton bloom and bacterial assemblages, however, the microbial composition and succession during a bloom process is unknown. ...

The physico-chemical characteristics, phytoplankton composition and distribution at the East mole area of the Lagos harbour were investigated between January and June, 2012. The physicochemical conditions varied between high brackish and sea water chemistry. Records were Air (26 33 0 C) and Water temperatures (28 31 0 C), Salinity (19.40 30.72 0 /00), Nutrients (Nitrate ≥ 3.11 mg/L; Phosphate ≥...

While several studies have suggested that bacterium-phytoplankton interactions have the potential to dramatically influence harmful algal bloom dynamics, little is known about how bacteria and phytoplankton communities interact at the species composition level. The objective of the current study was to determine whether there are specific associations between diverse phytoplankton and the bacte...

Estuaries, compared to offshore waters, are often characterized as habitats in which the biomass of aquatic organisms is high but their diversity is low. Standard reference works [e.g. (Kinne, 1971)] and textbooks on estuarine ecology [e.g. (Day et al., 1989)] present inverse relationships between species abundance and salinity, typically for benthic invertebrates. Variability of the environmen...

BACKGROUND Massive phytoplankton blooms, like the recurrent Phaeocystis proliferation observed every year in the Eastern English Channel (EEC), have a significant influence on the overall planktonic community structure and their food web dynamics. As well as being an important area for local fisheries, the EEC is an ideal ecosystem for work on microbial diversity. This is because, although its ...

Daily variations of coastal marine phytoplankton populations were studied over a 31-day period in the northeastern Mediterranean, Bay of İskenderun. Sampling was conducted between 21 June and 22 July 2002. In addition to phytoplankton sampling, chlorophyll a and nutrient analysis, seawater temperature and salinity measurements were done. Surface water temperature fluctuated between 25.2-30°C. S...

Marine chromophytes are taxonomically diverse group of algae and contribute approximately half of the total oceanic primary production. To understand the global patterns of functional diversity of chromophytic phytoplankton, robust bioinformatics and statistical analyses including deep phylogeny based on 2476 form ID rbcL gene sequences representing seven ecologically significant oceanographic ...

Ecological research in recent decades revealed that species loss has a predominantly negative effect on ecosystem functioning and stability. Most of these studies were based on random species loss scenarios, but extinctions in nature are not random. Recent experimental studies using macroscopic communities largely advanced knowledge about the effects of non-random species loss. However, in micr...