Essays about: "NSSN"

Found 3 essays containing the word NSSN.

1. 1. Fish sampling in lotic water : a study of the efficiency of the novel Nordic multi-mesh Stream Survey Net

   University essay from SLU/Dept. Of Aquatic Resources

   Author : Anders Eidborn; [2017]
   Keywords : Fish sampling; NSSN; gill net; fish community;

   Abstract : A free-flowing stream can offer several ecosystem services. Fish are one of these, and are an important resource for society, both as a food source and as a biological indicator of the water quality, which gives knowledge of the overall health of the stream. The lotic environment in fresh water streams is an important habitat for many fish species. READ MORE

3. 2. Barriers effect on lotic fish fauna

   University essay from SLU/Dept. Of Aquatic Resources

   Author : Johan Rudin; [2016]
   Keywords : migration barriers; ; Lotic fish fauna;

   Abstract : Barriers in running (lotic) waters are known to have serious impacts on fish fauna that would otherwise naturally colonialize them. The two most important effects barriers have on lotic fish fauna are the blockage of fish migration routes and the reduction of water velocity. READ MORE

4. 3. Stream channelization effects on fish abundance and species composition

   University essay from Institutionen för fysik, kemi och biologi; Tekniska högskolan

   Author : Ulf Johansson; [2013]
   Keywords : Channelization; Rheophilic species; nemoboreal streams; Nordic multi-mesh Stream Survey Net; lotic; relative abundance; fish community; limnophilic;

   Abstract : Streams are important habitats, providing shelter and feeding opportunities for a wide range of organisms. The species depending on running waters includes a wide array of fish species, using these waters for their whole or parts of their lifecycle. Streams are also the subject of different anthropogenic impact, e.g. READ MORE