Effects of kelp canopy on underwater light climate and viability of brown algal spores in Kongsfjorden (Spitsbergen)
We measured the effects of underwater light in summer 2015 on kelp spore parameters (Fv/Fm, pigment concentration, motility, phlorotannin content and germination success). Alaria esculenta spores were exposed in the laboratory to light conditions as found under no to very dense kelp canopies for 8 t...
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| Format: | Dataset |
| Language: | English |
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PANGAEA - Data Publisher for Earth & Environmental Science
2020
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| Online Access: | https://dx.doi.org/10.1594/pangaea.925298 https://doi.pangaea.de/10.1594/PANGAEA.925298 |
| Summary: | We measured the effects of underwater light in summer 2015 on kelp spore parameters (Fv/Fm, pigment concentration, motility, phlorotannin content and germination success). Alaria esculenta spores were exposed in the laboratory to light conditions as found under no to very dense kelp canopies for 8 to 24 hours. Parameters were measured immediately after exposure and after recoveries. Fv/Fm was measured with a PAM-Fluorometer, pigment and phlorotannin concentrations were analysed in the laboratory at the University of Bremen (samples shipped lyophilized) and motility and germination success were investigated with a microscope.Our results were used in a publication to elucidate to what extent spores are sheltered from light stress by parental kelp canopies under natural conditions.Longitude: 11.916738Latitude: 78.925463(Ny-Ålesund, Svalbard)Depth: 0 - 3m depthDate: 16.06.2015 - 18.07.2015Time: 12:00 am (noon, light measurements) |
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