Variability in Export Production Documented by Downward Fluxes and Species Composition
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Plate I. (a, b) Nitzschia bicapitata. (c) Thalassionema nitzschioides var. nitzschioides.
(d) Nitzschia interruptestriata. (e) Pseudosolenia calcar-avis, distal part of a valve.
(I) Rhizosolenia bergonii, distal part of a valve. (g) Thalassionema nitzschioides var. parva.
(h) resting spore ofChaetoceros lorenzianus. (i) vegetative cell ofChaetoceros radicans.
U) Aulacoseira granulata. (k) Stephanodiscus astraea. (I) Roperia tesselata. (m)Azpeitia
neocrenulata. (n) Azpeitia tabularis. All scale bars = 10 11m, except G = 5 11m.