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Minimising losses to predation during microalgae cultivation

We explore approaches to minimise impacts of zooplanktonic pests upon commercial microalgal crops using system dynamics models to describe algal growth controlled by light and nutrient availability and zooplankton growth controlled by crop abundance and nutritional quality. Losses of microalgal crops are minimised when their growth is fastest and, in contrast, also when growing ...

Impact of zooplankton food selectivity on plankton dynamics and nutrient cycling

Within models, zooplankton grazing is typically defined as being dependent on total prey concentration, with feeding selectivity expressed only as a function of prey size. This behavior ignores taxonomic preferences shown by the predators and the capacity of some zooplankton to actively select or reject individual prey items from mixtures. We carried out two model experiments ...

Acclimation, adaptation, traits and trade-offs in plankton functional type models: reconciling terminology for biology and modelling

We propose definitions in terminology to enhance ongoing collaborations between biologists and modellers on plankton ecology. Organism “functional type” should refer to commonality in ecology not biogeochemistry; the latter is largely an emergent property of the former, while alignment with ecology is also consistent with usage in terrestrial science. Adaptation should be confined, ...

A multi-nutrient model for the description of stoichiometric modulation of predation in micro- and mesozooplankton

ADITEE MITRA 0 0 INSTITUTE OF ENVIRONMENTAL SUSTAINABILITY, UNIVERSITY OF WALES SWANSEA , SINGLETON PARK, SWANSEA SA Changes in predator behaviour when confronted with prey of disadvantageous

Building the “perfect beast”: modelling mixotrophic plankton

KEVIN J. FLYNN 0 ADITEE MITRA 0 0 INSTITUTE OF ENVIRONMENTAL SUSTAINABILITY A mechanistic model is described for carbon - nitrogen - phosphorous-based interactions within a protistan mixotroph. The

Misuse of the phytoplankton–zooplankton dichotomy: the need to assign organisms as mixotrophs within plankton functional types

The classic portrayal of plankton is dominated by phytoplanktonic primary producers and zooplanktonic secondary producers. In reality, many if not most plankton traditionally labelled as phytoplankton or microzooplankton should be identified as mixotrophs, contributing to both primary and secondary production. Mixotrophic protists (i.e. single-celled eukaryotes that perform ...

Promotion of harmful algal blooms by zooplankton predatory activity

Aditee Mitra Kevin J Flynn Receive free email alerts when new articles cite this article - sign up in the box at the top right-hand corner of the article or click here References Email alerting ... algal blooms by zooplankton predatory activity Aditee Mitra and Kevin J. Flynn* Institute of Environmental Sustainability, Wallace Building, University of Wales Swansea, Swansea SA2 8PP, UK *Author for

Predator–prey interactions: is ‘ecological stoichiometry’ sufficient when good food goes bad?

ADITEE MITRA 0 KEVIN J. FLYNN 0 0 INSTITUTE OF ENVIRONMENTAL SUSTAINABILITY The dietary value of a prey type varies with its nutritional status and hence with its C:N:P content. However, while