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| Titel: |
Mesozooplankton composition and distribution in relation to oceanographic conditions in the Gulf of Cádiz, Spain |
| Auteur: |
Paulo MAFALDA Jr. Juan PÉREZ DE RUBÍN Christiane SAMPAIO DE SOUZA |
| Verschenen in: |
Revista científica UDO agrícola |
| Paginering: | Jaargang 7 (2007) nr. 1 pagina's 274-284 |
| Jaar: |
2007 |
| Inhoud: |
Two surveys were conducted during July 1994 and July 1995 in the Gulf of Cádiz with the aim of assessing temporal andspatial patterns in biomass (ZDV, zooplankton displacement volume) and mesozooplankton composition and theirrelationships with the oceanographic conditions. Differences between two successive summer seasons were found in thisstudy. The upper water column was warmer and more saline in 1994. Mesozooplankton abundance and biomass werehigher in 1994 than in 1995. However, the occurrence of several plankton species was remarkably regular. In the twosummers, cladocerans (Penilia avirostris, Evadne spinifera, Evadne tergestina, Evadne nordmanni, and Podon spp) werethe most abundant group followed by copepods and appendicularians. The dominance of cladocerans in the two summerswas basically due to the high abundance of Penilia avirostris. The study of trends showed that the relative abundance ofcopepods increased throughout the summers, although this increase was significant only in the north inshore sites, where theinfluence of Atlantic water is higher. The mesozooplankton abundance and, specifically, Cladocera density showed apositive correlation with temperature and ZDV but showed a negative correlation with salinity and depth. ZDV, Copepodaand Appendicularia density did not show a significant relationship with oceanographic variables. |
| Uitgever: |
Universidad de Oriente Press (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 119 van 185 gevonden artikelen
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