Reality checks on microbial food web interactions in dilution experiments
نویسندگان
چکیده
Reality checks on microbial food web interactions in dilution experiments: Responses to the comments of Dolan and McKeon M. R. Landry and A. Calbet Integrative Oceanography Division, Scripps Institution of Oceanography, University of California at San Diego, 9500 Gilman Dr., La Jolla, California 92093-0227, USA Institut de Ciències del Mar, CMIMA (CSIC), P. Maŕıtim de la Barceloneta 37–49, 08003 Barcelona, Spain Received: 13 December 2004 – Accepted: 27 December 2004 – Published: 29 December 2004 Correspondence to: M. R. Landry ([email protected]) © 2004 Author(s). This work is licensed under a Creative Commons License.
منابع مشابه
Reality checks on microbial food web interactions in dilution experiments: responses to the comments of Dolan and McKeon
Dolan and McKeon (2005) have recently criticized microzooplankton grazing rate estimates by the dilution approach as being systematically biased and significantly overestimated. Their argument is based on observed mortality responses of ciliated protozoa to reduced food in several coastal experiments and a global extrapolation which assumes that all grazing in all ocean systems scales to the ab...
متن کاملGrazer and viral impacts on microbial growth and mortality in the southern California Current Ecosystem
Protistan grazers and viruses are major agents of mortality in marine microbial communities with substantially different implications for food-web dynamics, carbon cycling and diversity maintenance. While grazers and viruses are typically studied independently, their impacts on microbial communities may be complicated by direct and indirect interactions of their mortality effects. Using a modif...
متن کاملThe production of cheese-flavored extruded snack exploiting anti-microbial properties of natural food colors
In this study, the effects of some edible pigments used in the food industry on pathogenic bacteria were investigated. For this purpose, five natural food colors were selected consisted of curcumin, β-carotene, paprika oleoresin, lycopene and turmeric oleoresin. The impacts of each color on bacterial species including Salmonella enterica, Escherichia coli, Bacillus cereus<...
متن کاملWarming effects on marine microbial food web processes: how far can we go when it comes to predictions?
Previsions of a warmer ocean as a consequence of climatic change point to a 2-6 degrees C temperature rise during this century in surface oceanic waters. Heterotrophic bacteria occupy the central position of the marine microbial food web, and their metabolic activity and interactions with other compartments within the web are regulated by temperature. In particular, key ecosystem processes like...
متن کاملTrophic interactions within the microbial food web in a tropical floodplain lake (Laguna Bufeos, Bolivia).
Whether the primary role of bacterioplankton is to act as "remineralizers" of nutrients or as direct nutritional source for higher trophic levels will depend on factors controlling their production and abundance. In tropical lakes, low nutrient concentration is probably the main factor limiting bacterial growth, while grazing by microzooplankton is generally assumed to be the main loss factor f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004