Powell, Jessica: Cylindrotheca sp. growth rates during a simulated marine heatwave laboratory experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995566 (dataset in review)
Abstract:
Cultures of Cylindrotheca sp. were isolated from Subantarctic Water (SAW) off New Zealand's east coast in December 2023 and exposed to a simulated marine heatwave incubation. Three replicates were incubated under two treatments: the average summer temperature of the SAW (Control, 12.2°C) and the maximum anomaly measured at the sample site at the time of experimental design (Heatwave, +3.6°C; EU Copernicus Marine Service, 2023). The heatwave temperature was first increased by 0.6°C, followed by 3 days of 1°C increase per day to a 7-day constant period at 15.8°C. At the end of the 7 days, the temperature was decreased by 1°C for 3 days and finally returned to 12.2°C at the end of the incubation. Biomass accumulation was monitored daily by measuring the in vivo chlorophyll-a using a Turner 10-AU fluorometer. The daily growth rate of the cultures was calculated from the natural log of the chlorophyll-a measurements against time.
Keyword(s):
Supplement to:
Powell, Jessica; Armstrong, Evelyn; Law, Cliff S (submitted): Subantarctic phytoplankton response to simulated marine heatwave conditions. Scientific Reports
References:
Price, Neil M; Harrison, Gail I; Hering, Janet G; Hudson, Robert J; Nirel, Pascale M V; Palenik, Brian; Morel, François M M (1989): Preparation and Chemistry of the Artificial Algal Culture Medium Aquil. Biological Oceanography, 6(5-6), 443-461, https://doi.org/10.1080/01965581.1988.10749544
Thomas, William H; Scotten, Harold L; Bradshaw, John S (1963): Thermal gradient incubators for small aquatic organisms. Limnology and Oceanography, 8(3), 357-360, https://doi.org/10.4319/lo.1963.8.3.0357
Coverage:
Median Latitude: -45.850402 * Median Longitude: 171.026709 * South-bound Latitude: -45.864803 * West-bound Longitude: 170.512418 * North-bound Latitude: -45.836000 * East-bound Longitude: 171.541000
Date/Time Start: 2023-12-18T02:00:00 * Date/Time End: 2024-09-28T01:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Powell, Jessica | |||
| 2 | Date/time start, experiment | Date/time start exp | Powell, Jessica | |||
| 3 | Date/time end, experiment | Date/time end exp | Powell, Jessica | |||
| 4 | Treatment: photoperiod | T:photoperiod | h | Powell, Jessica | Day/Night cycle [12h:12h] | |
| 5 | Treatment: light intensity | T:Io | µmol/m2/s | Powell, Jessica | ||
| 6 | Medium | Medium | Powell, Jessica | According to Price et al. (1989) | Aquil 19.4 | |
| 7 | Treatment: dissolved iron | T:Fe diss | nmol/l | Powell, Jessica | ||
| 8 | Experimental treatment | Exp treat | Powell, Jessica | |||
| 9 | Treatment: temperature | T:temp | °C | Powell, Jessica | Incubator | |
| 10 | Treatment: duration | T:duration | days | Powell, Jessica | ||
| 11 | Chlorophyll a | Chl a | RFU | Powell, Jessica | Fluorometer, Turner Designs, 10-AU | |
| 12 | Chlorophyll a, natural logarithm | ln Chl a | Powell, Jessica | |||
| 13 | Cylindrotheca sp., growth rate | Cylindrotheca sp. µ | 1/day | Powell, Jessica | Fluorometer, Turner Designs, 10-AU | Growth rate calculated from slope of the natural log of in vivo fluorescence vs time for each day |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1086 data points