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Patterns and Variation of Littoral Habitat Size Among Lakes
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap.ORCID iD: 0000-0001-6700-6149
National Oceanography Centre, Southampton, United Kingdom.
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap.
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap.
Responsible organisation
2021 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 48, no 20, article id e2021GL095046Article in journal (Refereed) Published
Abstract [en]

The littoral zone varies in size among lakes from ∼3% to 100% of lake surface area. In this paper, we derive a simple theoretical scaling relationship that explains this variation, and test this theory using bathymetric data across the size spectra of freshwater lakes (surface area = 0.01–82,103 km2, maximum depth = 2–1,741 m). Littoral area primarily reflects the ratio of the maximum depth of photosynthesis to maximum lake depth. However, lakes that are similar in these characteristics can have different relative littoral areas because of variation in basin shape. Hypsometric (area-elevation) models that describe these patterns for individual lakes can be generalized among lakes to accurately predict the relative size of littoral habitat when there is incomplete bathymetric information. Collectively, our results provide simple rules for understanding patterns of littoral habitat size at the regional and global scales.

Place, publisher, year, edition, pages
American Geophysical Union (AGU) , 2021. Vol. 48, no 20, article id e2021GL095046
Keywords [en]
hypsometry, lake morphometry, light penetration, littoral zone, scaling
National Category
Ecology Environmental Sciences
Identifiers
URN: urn:nbn:se:polar:diva-8795DOI: 10.1029/2021GL095046Scopus ID: 2-s2.0-85118241586OAI: oai:DiVA.org:polar-8795DiVA, id: diva2:1625164
Funder
Swedish Research Council Formas, 2019/0007Knut and Alice Wallenberg FoundationAvailable from: 2022-01-06 Created: 2022-01-06 Last updated: 2022-01-06Bibliographically approved

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