Metazoan Meiobenthos temporal fluctuations in the deep NW Mediterranean Sea (DYFAMED-BENTHOS 1993-1995). Contribution of spatial variability and disturbance
| Autor: | Serge Dallot, Laurence D. Guidi-Guilvard |
|---|---|
| Přispěvatelé: | Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Ecology 010604 marine biology & hydrobiology Meiobenthos Aquatic Science Seasonality Biology Oceanography medicine.disease 01 natural sciences Deep sea Mediterranean sea Benthos Abundance (ecology) Spatial ecology medicine Spatial variability 14. Life underwater [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography 0105 earth and related environmental sciences |
| Zdroj: | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 2014, 92, pp.127-140. ⟨10.1016/j.dsr.2014.07.003⟩ |
| DOI: | 10.1016/j.dsr.2014.07.003⟩ |
| Popis: | Time-series surveys to resolve metazoan meiofauna abundance fluctuations in the deep sea are scarce. Between January 1993 and October 1995, surface sediment was collected with a multicorer at an average sampling frequency of 1.3 months at the DYFAMED-BENTHOS station (43 degrees 24.62' N-7 degrees 51.68' E; 2347 m depth) in the NW Mediterranean. Total metazoan meiofauna abundance in the 170 samples collected over the three-year period ranged from 133 to 770 ind. 10 cm(-2) (mean 380 ind. 10 cm(-2)). The community comprised on the average similar to 89% nematodes, 4.7% copepods, 4.3% nauplii, 1.1% annelids and 0.5% least common taxa pooled (Others). Variability in organism abundances was analysed at three spatial- (cm, 10-cm, 100-m) and two temporal (dates, years) scales, using coefficients of dispersion, nested ANOVAs and autocorrelation statistics. All the meiobenthic groups except the annelids exhibited aggregation at the centimetre scale. The 5 sources of variation together explained similar to 95% of the variability in the nematode abundances. They explained 65% of the variability in the abundances of nauplii and |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|