Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• GARCÉS E., VILA M., MASÒ M., SAMPEDRO N., GIACOBBE M.G., PENNA A. (2005)
  Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique
  in Marine ecology. Progress series (Halstenbek)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• GARCÉS E., VILA M., MASÒ M., SAMPEDRO N., GIACOBBE M.G., PENNA A. (literal)

Pagina inizio

• 67 (literal)

Pagina fine

• 79 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 301 (literal)

Rivista

• Marine ecology. Progress series (Rivista)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Institut de Ciències del Mar, Passeig Marítim de la Barceloneta - Centro Biologia Ambientale, Università di Urbino (literal)

Titolo

• Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique (literal)

Abstract

• Growth and mortality rates of natural single Alexandrium spp. cells were measured by the Landry-Hassett dilution technique during different phases of blooms. Taxon-specific experiments were conducted between May and October 2002 during 3 intense blooms of A. taylori and A. catenella at different locations of the Mediterranean Sea. In addition, dilution experiments using chlorophyll a as a proxy for total phytoplankton biomass were used to estimate daily rates of net growth and mortality of the total phytoplankton community. A. taylori growth rates ranged from 0.04 to 0.67 d–1 and mortality rates from –0.20 to –0.65 d–1. Growth rates of Gymnodinium sp., an accompanying dinoflagellate species during the A. taylori bloom studied, were similar to those measured for A. taylori, whereas their mortality rates (–0.58 to –0.82 d–1) were slightly higher. A. catenella growth and mortality rates were balanced (0.24 and 0.44 d–1 compared with –0.25 and –0.44 d–1, respectively). The highest mortality rates (–0.65 d–1) were measured during the decline phase of 2 A taylori blooms. At the decline of the blooms, A. taylori and A. catenella showed considerable mortality, but microzooplankton grazing was not confirmed to be the main cause of the bloom termination. In general, growth was not limited by nutrients in the experiments. There were a few cases of a potential nutrient limitation in these areas and, in general, blooms were not conditioned by nutrients. When changes in biomass (chlorophyll a) were measured, non-linearity of data due to saturation was observed. The interpretation of these results required a split-function model. Saturated grazing (Gs) was 28.9 µg chl a l–1 d–1, during which the saturating phytoplankton population represented a chl a concentration of 16 µg l–1 (Ps). (literal)

Prodotto di

• Institute for coastal marine environment (IAMC) (Istituto)
• Approccio integrato per un'acquacoltura sostenibile: aspetti ambientali, qualità, benessere e applicazioni di nuove tecnologie (TA.P04.019.001) (Modulo)

Autore CNR

• MARIA GIACOBBE (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique" (Insieme di parole chiave)

Incoming links:

Prodotto

• Approccio integrato per un'acquacoltura sostenibile: aspetti ambientali, qualità, benessere e applicazioni di nuove tecnologie (TA.P04.019.001) (Modulo)
• Institute for coastal marine environment (IAMC) (Istituto)

Autore CNR di

• MARIA GIACOBBE (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Marine ecology. Progress series (Rivista)

Insieme di parole chiave di

• Keywords of "Taxon-specific analysis of growth and mortality rates of harmful dinoflagellates during bloom conditions estimated by the dilution technique" (Insieme di parole chiave)