Short-term sedimentation pulses recorded with a fluorescence sensor and sediment traps at 900-m depth in the Canary basin

Gerhard Fischer, Susanne Neuer, Gerold Wefer, Gunther Krause

Research output: Contribution to journalArticle

35 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1354-1359
Number of pages6
JournalLimnology and Oceanography
Volume41
Issue number6
StatePublished - Sep 1996
Externally publishedYes

Fingerprint

canaries
sediment trap
sensors (equipment)
pigment
fluorescence
pigments
sedimentation
basins
sensor
winter
fecal pellet
Canary Islands
basin
pellets
time series analysis
zooplankton
chlorophyll
traps
phytoplankton
time series

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Short-term sedimentation pulses recorded with a fluorescence sensor and sediment traps at 900-m depth in the Canary basin. / Fischer, Gerhard; Neuer, Susanne; Wefer, Gerold; Krause, Gunther.

In: Limnology and Oceanography, Vol. 41, No. 6, 09.1996, p. 1354-1359.

Research output: Contribution to journalArticle

@article{e26760c4b385490da4061e5d824b1a2a,
title = "Short-term sedimentation pulses recorded with a fluorescence sensor and sediment traps at 900-m depth in the Canary basin",
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.",
author = "Gerhard Fischer and Susanne Neuer and Gerold Wefer and Gunther Krause",
year = "1996",
month = "9",
language = "English (US)",
volume = "41",
pages = "1354--1359",
journal = "Limnology and Oceanography",
issn = "0024-3590",
publisher = "American Society of Limnology and Oceanography Inc.",
number = "6",

}

TY - JOUR

T1 - Short-term sedimentation pulses recorded with a fluorescence sensor and sediment traps at 900-m depth in the Canary basin

AU - Fischer, Gerhard

AU - Neuer, Susanne

AU - Wefer, Gerold

AU - Krause, Gunther

PY - 1996/9

Y1 - 1996/9

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0030462078&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030462078&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0030462078

VL - 41

SP - 1354

EP - 1359

JO - Limnology and Oceanography

JF - Limnology and Oceanography

SN - 0024-3590

IS - 6

ER -