http://www.cnr.it/ontology/cnr/individuo/prodotto/ID185694
Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatom (Articolo in rivista)
- Type
- Label
- Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatom (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1038/nature02526 (literal)
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- Ianora A.; Miralto A.; Poulet S.A.; Carotenuto Y.; Buttino I.; Romano G.; Casotti R.; Pohnert G.; Wichard T.; Colucci-D'Amato L.; Terrazzano G.; Smetacek V. (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Stn Zool A Dohrn, Ecophysiol Lab, I-80121 Naples, Italy
CNRS, Stn Biol Roscoff, F-29682 Roscoff, France
Max Planck Inst Chem Ecol, D-07745 Jena, Germany
CNR, Inst Endocrinol & Expt Oncol, I-80131 Naples, Italy
Univ Naples, Dept Cellular & Mol Biol & Pathol, I-80131 Naples, Italy
Alfred Wegener Inst Polar & Marine Res, D-27570 Bremerhaven, Germany (literal)
- Titolo
- Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatom (literal)
- Abstract
- The growth cycle in nutrient-rich, aquatic environments starts with a diatom bloom that ends in mass sinking of ungrazed cells and phytodetritus(1). The low grazing pressure on these blooms has been attributed to the inability of overwintering copepod populations to track them temporally(2). We tested an alternative explanation: that dominant diatom species impair the reproductive success of their grazers. We compared larval development of a common overwintering copepod fed on a ubiquitous, early-blooming diatom species with its development when fed on a typical post-bloom dinoflagellate. Development was arrested in all larvae in which both mothers and their larvae were fed the diatom diet. Mortality remained high even if larvae were switched to the dinoflagellate diet. Aldehydes, cleaved from a fatty acid precursor by enzymes activated within seconds after crushing of the cell(3), elicit the teratogenic effect(4). This insidious mechanism, which does not deter the herbivore from feeding but impairs its recruitment, will restrain the cohort size of the next generation of early-rising overwinterers. Such a transgenerational plant-herbivore interaction could explain the recurringly inefficient use of a predictable, potentially valuable food resource-the spring diatom bloom-by marine zooplankton. (literal)
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