Short-Term Sedimentation Pulses Recorded with a Fluorescence Sensor and Sediment Traps at 900-m Depth in the Canary Basin

Publication Type:Journal Article
Year of Publication:1996
Authors:Fischer, G, Neuer, S, Wefer, G, Krause, G
Journal:Limnology and Oceanography
Date Published:1996
ISBN Number:00243590
Keywords:Fringillidae, Serinus, Serinus canaria
Abstract:We observed short-term peaks in pigment fluorescence and backscattering using optical sensors combined with time-series sediment traps at ∼ 900-m depth at an oligotrophic site in the Canary Island region. These events were observed in late winter to early spring and lasted only a few hours to a few days. The events generally coincided with late winter to early spring flux maxima recorded by the traps. Surprisingly, microscopic analyses showed no evidence of sedimentation of intact phytoplankton cells during the fluorescence peaks. However, we observed well-preserved zooplankton fecal pellets containing densely packed coccoliths and, presumably, large amounts of chlorophyll-derived pigments.
Short Title:Limnology and Oceanography
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