TABLE 3.
Results of the six RDA used to link the dynamics of potential eukaryote parasites with biotic and abiotic environmental parametersa
| Response variable (species data) | Explanatory variable(s) (% of significantlyb explained variance) |
|---|---|
| Total putative parasites (Perkinsozoa + fungi) | Dinobryon sociale (53.8), Cyclotella bodanica (23), Cymbella sp. (12.4), Melosira varians (5.6), Chlorophyceae (4.9) |
| Total Perkinsozoa | Dinobryon sociale (80.7), Fragilaria cf. acusc (17.2) |
| Perkinsozoa clade 1 | Peridinium inconspicuum (84.4), Ceratium hirundinella (10) |
| Perkinsozoa clade 2 | Dinobryon sociale (99.5) |
| Fungi | NO3-N (64.4), Melosira varians (21.1), Chlorophyceae (7.2), Cyclotella bodanica (3.8) |
| Cercozoa | Pseudanabaena galeata (83) |
a
The explanatory variables tested in this analysis are chemical parameters (PO4-P, NH4-N, NO3-N, SiO2,), chl a concentration, abundances of heterotrophic flagellates and ciliates, and abundances of nano- and microphytoplankton species, metazooplankton species, and bivalve larvae. The response of small putative eukaryotic parasites to these explanatory variables was observed from six different matrixes: abundances of all putative parasites, Perkinsozoa (all clades, clade 1, and clade 2), fungi, and Cercozoa.
b
P < 0.05.
c
A Fragilaria sp. that looks like Fragilaria acus.