Scientific datasets are often difficult to analyse or visualise, due to their large size and high dimensionality. We propose a multistep approach to address this problem. We begin by using data management techniques to identify areas of interest within the dataset. This allows us to reduce a dataset’s size and dimensionality, and to estimate missing values or correct erroneous entries. We displ...

Endemic planktonic diatoms are a major component of Lake Baikal sediments during interglacial periods. To investigate how these diatom assemblages are altered during sediment formation, quantitative plankton monitoring (1995–1998) was integrated with sediment trapping over 2 yr (1996–1997) in Baikal’s southern basin (depth ;1,400 m). The traps consisted of both open (;6 monthly) and sequential ...

Yessotoxins(YTXs) is a phycotoxin produced by phytoplankton that has been reported as cardiotoxic and have been detected in microalgae and/or bivalve molluscs in many countries. Their presence in shellfish was discovered due to their high acute toxicity in mice after i.p. injection of lipophilic extracts. YTXs in sediment, seawater, plankton and shellfish in the northern Yellow Sea of China wer...

Scientific datasets are often difficult to analyse or visualise, due to their large size and high dimensionality. We propose a multistep approach to address this problem. We begin by using data management techniques to identify areas of interest within the dataset. This allows us to reduce a dataset’s size and dimensionality, and to estimate missing values or correct erroneous entries. We displ...

Scientific datasets are often difficult to analyse or visualize, due to their large size and high dimensionality. We propose a twostep approach to address this problem. We begin by using data mining algorithms to identify areas of interest within the dataset. This allows us to reduce a dataset’s size and dimensionality, and to estimate missing values or correct erroneous entries. We display the...

We carried out a study of the spatial and temporal effects of land-derived material on water column nutrients and plankton dynamics in a subtropical estuary. The study had 2 parts: (1) a 3 yr synoptic monitoring program, and (2) a shorter 1.5 yr study during the second half of the program, which focused on individual pulses driven by discrete rainfall events. Although we found spatial differenc...

Food-web population models are rather sensitive to parameterization of functional response in predation terms. Theoretical studies predict enhancing of ecosystems' stability for a functional response of sigmoid type (Holling type III). The choice of a correct type of response is especially important for modelling outcome of grazing control of algal blooms by zooplankton in nutrient-rich ecosyst...