Citation:

PANGAEA.988351 (dataset in review)

Name: Growth of Chaetoceros affinis and bacteria in response to initial density manipulations
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bacteria; cell size; Chaetoceros affinis; density; density manipulation; growth; Phytoplankton; symbiosis

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Abstract:

Daily measurements of bacteria and Chaetoceros affinis (diatom; RCC6348; roscoff-culture-collection.org) cell densities and C. affinis cell height and diameter in a short-term (4 days) experiment where initial densities of phytoplankton and bacteria were manipulated. Phytoplankton and bacteria were separated using a 20 µm mesh and reassembled in different proportions. Treatment levels were High phytoplankton, Low phytoplankton, High bacteria, Low bacteria, and Intermediate phytoplankton and bacteria densities. Experimental bottles contained 200 ml sterile filtered artificial seawater with 19.7 µmol/L nitrate, 18.1 µmol/L silicate, 1.2 µmol/L phosphate and vitamins, selenium, and trace metals according to f/8 media before inoculation with 50 ml phytoplankton-bacteria mix.

Keyword(s):

Bacteria; cell size; Chaetoceros affinis; density; density manipulation; growth; Phytoplankton; symbiosis

Project(s):

Density dependent symbiosis in planktonic systems (DynaSym)

Funding:

German Research Foundation (DFG), grant/award no. MA 5058/4-1

Coverage:

Latitude: 27.980000 * Longitude: -15.370000

Date/Time Start: 2025-05-05T00:00:00 * Date/Time End: 2025-05-09T00:00:00

Event(s):

Gran_Canaria_2014 (Gran Canaria coastal waters) * Latitude: 27.980000 * Longitude: -15.370000 * Date/Time: 2014-10-10T00:00:00 * Method/Device: Water sample (WS)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Hamer, Jorin
2	Type of study	Study type		Hamer, Jorin
3	DATE/TIME	Date/Time		Hamer, Jorin		Geocode – Date of experiment
4	Day of experiment	DOE	day	Hamer, Jorin
5	Time in hours	Time h	h	Hamer, Jorin		Experimental hour
6	Bottle number	Bottle		Hamer, Jorin
7	Treatment	Treat		Hamer, Jorin		Density manipulation
8	Species, unique identification	Species UID		Hamer, Jorin
9	Species, unique identification (Semantic URI)	Species UID (Semantic URI)		Hamer, Jorin
10	Cell density	Cells	#/ml	Hamer, Jorin	Flow cytometer, Beckman Coulter, Gallios	Density
11	Cell size	Cell size	µm	Hamer, Jorin	Microscopy (Zeiss Axiovert 200)	Height
12	Cell, diameter	Cell diam	µm	Hamer, Jorin	Microscopy (Zeiss Axiovert 200)

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:

2400 data points

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