Table 2 Abundance of heterotrophic and autotrophic picoplankton within Trichodesmium blooms in three development stages (sparse, slick and PCD-like), and in clear and sewage waters.

From: Untreated sewage outfalls do not promote Trichodesmium blooms in the coasts of the Canary Islands

Site Bacteria (cells mL−1) Prochlorococcus (cells mL−1) Synechococcus (cells mL−1) Picoeukaryotes (cells mL−1)
Sparse Trichodesmium colonies 4.3 ± 0.01 × 105 8.8 ± 0.02 × 104 1.3 ± 0.2 × 104 2.6 ± 0.3 × 103
Slick Trichodesmium colonies 3.0 ± 0.02 × 105 4.0 ± 0.5 × 104 2.0 ± 0.8 × 104 2.2 ± 0.05 × 103
PCD-like Trichodesmium colonies 4.3 ± 0.03 × 105 5.4 ± 0.3 × 104 3.2 ± 0.7 × 104 1.2 ± 0.3 × 103
Clear seawater 3.5 ± 0.06 × 105 1.7 ± 0.03 × 104 0.4 ± 0.05 × 104 0.3 ± 0.02 × 103
Sewage water 4.3 ± 0.07 × 105 9.3 ± 0.4 × 104 1.6 ± 0.4 × 104 2.9 ± 0.07 × 103