Spring, Summer and Melting Sea Ice
This chapter describes one of the most dynamic and ecological important seasons. The onset of ice melt initiates significant changes in the physical properties of the ice (4.1), and the related biotic processes in the spring/summer sea ice are addressed (4.2). Ice algal spring blooms are described a...
| Main Authors: | , , , , |
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| Format: | Book Part |
| Language: | English |
| Published: |
Springer Nature
2020
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| Subjects: | |
| Online Access: | https://pure.au.dk/portal/en/publications/aa308904-de04-4e6b-a9c7-0d92175ac80b https://doi.org/10.1007/978-3-030-37472-3_4 http://www.scopus.com/inward/record.url?scp=85159392038&partnerID=8YFLogxK |
| Summary: | This chapter describes one of the most dynamic and ecological important seasons. The onset of ice melt initiates significant changes in the physical properties of the ice (4.1), and the related biotic processes in the spring/summer sea ice are addressed (4.2). Ice algal spring blooms are described and exemplified with two studies from contrasting Arctic sites (4.3). A Case Study 2 has a focus on effects and consequences for ice algae of increased irradiances at the ice bottom in terms of pigments, fatty acids, and MAAs (4.4). Ice algae bloom dynamics are investigated in a combined model and field study (4.5). Melt ponds termed “windows to the ocean” develop on the surface of the ice with increased light transmittance (4.6). Seeding of the ice or water column below with viable ice algae can initiate ice algae or pelagic blooms, and mechanisms are explored in model and field studies (4.7). Case study 3 show that species of meiofauna graze directly on the ice algae, and that the meiofauna establishes an important ecological component in the sea ice (4.8). |
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