Diversity, distribution and community composition of fish in perialpine lakes – “ Projet Lac ” synthesis report Author Alexander, Timothy Author Seehausen, Ole Eawag: Das Wasserforschungsinstitut des ETH-Bereichs Überlandstrasse 133, CH- 8600 Dübendorf text 2021 2021-11-12 Eawag: Swiss Federal Institute of Aquatic Science and Technology https://www.dora.lib4ri.ch/eawag/islandora/object/eawag:24051 book 2839 10.5281/zenodo.5779569 723c8018-f87a-440a-bed1-3d2fe2a46e42 978-3-906484-76-1 5779569

Table 14: The two main sampling methods used by Projet Lac to sample littoral habitats, gillnets and electrofishing, vary in when and how they sample, and the types of fish that they tend to catch in greater numbers.

		Gillnets	Electrofishing
	Period	Overnight	Daytime
Sampling details	Duration	Long: approx. 14 hours	Short: 5 – 10 minutes
	Method	Passive	Active
	Mobility	More mobile	Less mobile
	Shape	Deeper-bodied	Non-selective
Fish	Spines	Hard spines	Non-selective
selectivity	Size	Larger	Smaller
	Predatory behaviour	Active	Ambush
	Defence strategy	Flight	Hide