A biochemical investigation of a Phaeocystis sp. bloom in the Irish Sea
| Autor: | S. A. Poulet, Jean-Claude Marty, A. M. Hapette, F. Ben Mlih, Hervé Claustre, V. Jezequel-Martin, S. H. Coombs, R. Williams |
|---|---|
| Přispěvatelé: | Laboratoire de Physique et Chimie Marines (LPCM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre d'études d'océanographie et de biologie marine (CEOBM), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Plymouth Marine Laboratory (PML), Plymouth Marine Laboratory |
| Jazyk: | angličtina |
| Rok vydání: | 1990 |
| Předmět: |
0106 biological sciences
chemistry.chemical_classification 010504 meteorology & atmospheric sciences biology Ecology 010604 marine biology & hydrobiology Fatty acid Aquatic Science biology.organism_classification 01 natural sciences Zooplankton chemistry.chemical_compound chemistry Botany Phytoplankton Fucoxanthin 14. Life underwater Bloom Carotenoid Copepod ComputingMilieux_MISCELLANEOUS [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography 0105 earth and related environmental sciences Polyunsaturated fatty acid |
| Zdroj: | Journal of the Marine Biological Association of the UK Journal of the Marine Biological Association of the UK, 1990, 70 (1), pp.197--207. ⟨10.1017/S0025315400034317⟩ Journal of the Marine Biological Association of the UK, Cambridge University Press (CUP), 1990, 70 (1), pp.197--207. ⟨10.1017/S0025315400034317⟩ |
| ISSN: | 0025-3154 1469-7769 |
| DOI: | 10.1017/S0025315400034317⟩ |
| Popis: | In early June 1988, an extensive bloom of Phaeocystis sp. (29xlO6 cells 1−1) was observed in the eastern Irish Sea along the North Wales coast. Chlorophylls, carotenoids, free amino acids, fatty acids, vitamin C, carbon and nitrogen were measured in particles from three size categories (μm, 22–100 μm and 100–200 μm) at a station 13 miles off the coast line. Phaeocystis sp. formed 99% of the total particle stock below 22 μm and was characterized by (1) the presence of chlorophyll c3, (2) the dominance of fucoxanthin over 19'- acyloxyfucoxanthins, (3) the presence of C18:5 fatty acid at trace levels and (4) different proportions of amino acids compared to those measured in particles greater than 22 μm. These larger particles were dominated by diatoms, dinoflagellates and ciliates. The poor nutritional value of Phaeocystis sp. for herbivorous zooplankton was characterised by its low content of polyunsaturated fatty acids and vitamin C. Comparison between the chemical composition of Phaeocystis sp. and copepod faecal pellets showed that the copepods were feeding predominantly on other phytoplankton. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|