• Publications
  • Influence
An experimentally determined carbon : volume ratio for marine “oligotrichous” ciliates from estuarine and coastal waters
The biomass of marine “oligotri chous” ciliates has often been estimated by measuring the cell volume of preserved samples and converting to units of carbon based on theoretical carbon: volume (C:Expand
  • 985
  • 240
Eutrophication and Harmful Algal Blooms: A Scientific Consensus.
In January 2003, the US Environmental Protection Agency sponsored a "roundtable discussion" to develop a consensus on the relationship between eutrophication and harmful algal blooms (HABs),Expand
  • 1,268
  • 57
  • PDF
Predation on Protozoa: its importance to zooplankton
Evaluation de l'importance potentielle des protozoaires comme source de nourriture pour le zooplancton et les larves de poissons
  • 753
  • 24
Obligate mixotrophy inLaboea strobila, a ciliate which retains chloroplasts
The planktonic ciliateLaboea strobila Lohmann sequesters photosynthetically functional chloroplasts derived from ingested algae. The chloroplasts lie free in the cytoplasm and are most abundant justExpand
  • 151
  • 24
Conceptual models of mixotrophy in planktonic protists and some ecological and evolutionary implications
Summary Mixotrophy is a common phenomenon among planktonic algae and protozoa. Mixotrophic protists that combine phagotrophy and phototrophy are often abundant in the euphotic zone in fresh,Expand
  • 250
  • 21
Iron and grazing constraints on primary production in the central equatorial Pacific: An EqPac synthesis
Recent studies in the central equatorial Pacific allow a comprehensive assessment of phytoplankton regulation in a high-nutrient, low-chlorophyll (HNLC) ecosystem. Elemental iron enters the euphoticExpand
  • 423
  • 20
  • PDF
Preservation of marine planktonic ciliates: losses and cell shrinkage during fixation
For enumeration of microzooplankton (20-200 pm size fraction), including planktonic ciliates, water samples are usually fixed and preserved, then concentrated by sedimentation in Utermohl chambersExpand
  • 201
  • 18
  • PDF
Cryptophyte algae are robbed of their organelles by the marine ciliate Mesodinium rubrum
Mesodinium rubrum (Lohmann 1908) Jankowski 1976 (= Myrionecta rubra) is a common photosynthetic marine planktonic ciliate which can form coastal red-tides. It may represent a ‘species complex’ andExpand
  • 197
  • 17
Retention of transcriptionally active cryptophyte nuclei by the ciliate Myrionecta rubra
It is well documented that organelles can be retained and used by predatory organisms, but in most cases such sequestrations are limited to plastids of algal prey. Furthermore, sequestrations of preyExpand
  • 167
  • 16
Intra- and interspecies differences in growth and toxicity of Pseudo-nitzschia while using different nitrogen sources
Abstract Clonal cultures of plankton are widely used in laboratory experiments and have contributed greatly to knowledge of microbial systems. However, many physiological characteristics varyExpand
  • 101
  • 14