Abstract
The diel change in dissolved oxygen concentrations were recorded with an automated incubator containing a pulsed oxygen sensor in Sarasota Bay, Florida. The deployments occurred during a 'pre-bloom' period in May to June 2006, and during a harmful algal bloom dominated by Karenia brevis in September 2006. The diurnal (daylight) increase in dissolved oxygen concentrations varied from 16 to 104μmolO2l-1 with the corresponding nocturnal decrease in oxygen varying from 16 to 77μmolO2l-1. Nocturnal respiration consumed 42-113% of the diurnal net oxygen production with the minimum and maximum during the pre-bloom period. Hourly production rates closely followed fluctuations in irradiance with maximum rates in the late morning. Hourly oxygen utilization rates (community respiration) at night were highest during the first few hours after sunset.
| Original language | English |
|---|---|
| Pages (from-to) | 95-100 |
| Number of pages | 6 |
| Journal | Harmful Algae |
| Volume | 38 |
| Issue number | C |
| DOIs | |
| State | Published - 2014 |
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Keywords
- Karenia brevis
- Net community production
- Respiration
ASJC Scopus subject areas
- Aquatic Science
- Plant Science
Cite this
Comparative diel oxygen cycles preceding and during a Karenia bloom in Sarasota Bay, Florida, USA. / Hitchcock, Gary L.; Kirkpatrick, Gary; Lane, Peter V Z; Langdon, Chris.
In: Harmful Algae, Vol. 38, No. C, 2014, p. 95-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparative diel oxygen cycles preceding and during a Karenia bloom in Sarasota Bay, Florida, USA
AU - Hitchcock, Gary L.
AU - Kirkpatrick, Gary
AU - Lane, Peter V Z
AU - Langdon, Chris
PY - 2014
Y1 - 2014
N2 - The diel change in dissolved oxygen concentrations were recorded with an automated incubator containing a pulsed oxygen sensor in Sarasota Bay, Florida. The deployments occurred during a 'pre-bloom' period in May to June 2006, and during a harmful algal bloom dominated by Karenia brevis in September 2006. The diurnal (daylight) increase in dissolved oxygen concentrations varied from 16 to 104μmolO2l-1 with the corresponding nocturnal decrease in oxygen varying from 16 to 77μmolO2l-1. Nocturnal respiration consumed 42-113% of the diurnal net oxygen production with the minimum and maximum during the pre-bloom period. Hourly production rates closely followed fluctuations in irradiance with maximum rates in the late morning. Hourly oxygen utilization rates (community respiration) at night were highest during the first few hours after sunset.
AB - The diel change in dissolved oxygen concentrations were recorded with an automated incubator containing a pulsed oxygen sensor in Sarasota Bay, Florida. The deployments occurred during a 'pre-bloom' period in May to June 2006, and during a harmful algal bloom dominated by Karenia brevis in September 2006. The diurnal (daylight) increase in dissolved oxygen concentrations varied from 16 to 104μmolO2l-1 with the corresponding nocturnal decrease in oxygen varying from 16 to 77μmolO2l-1. Nocturnal respiration consumed 42-113% of the diurnal net oxygen production with the minimum and maximum during the pre-bloom period. Hourly production rates closely followed fluctuations in irradiance with maximum rates in the late morning. Hourly oxygen utilization rates (community respiration) at night were highest during the first few hours after sunset.
KW - Karenia brevis
KW - Net community production
KW - Respiration
UR - http://www.scopus.com/inward/record.url?scp=84923226804&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84923226804&partnerID=8YFLogxK
U2 - 10.1016/j.hal.2014.05.010
DO - 10.1016/j.hal.2014.05.010
M3 - Article
AN - SCOPUS:84923226804
VL - 38
SP - 95
EP - 100
JO - Harmful Algae
JF - Harmful Algae
SN - 1568-9883
IS - C
ER -