Ex Student Archive




Home About Browse Advanced Search


Kagervall, Anders (2008) Early to late summer fish distribution in a bay of the Gulf of Bothnia. Other thesis, SLU.

Full text available as:
[img]
Preview
PDF
Anders_Kagervall_exjobb_2008_13.pdf

Download (249kB) | Preview

Abstract

This study examined the fish community in a shallow bay in the Gulf of Bothnia during the summer of 2007. The distribution of several fishsh species within the bay was investigated. Possible influence on trout is discussed. Fish was sampled eight times at three different areas of the bay starting 4th of June and ending 7th of September. The fish was sampled with multimesh gillnets and horizontal echosounding. I found that the bay was dominated by three freshwater species, roach, perch and ruffe with no apparent effect of season on their distribution. However, the abundance of roach in the outer area changed significantly with low abundance early in the summer and high abundance late summer and autumn. The overall high abundance of warm water species in trout feeding areas could potentially have a negative effect on trout through feeding competition.

Item Type: Thesis (Other)
Keywords: Bothnian Bay, brackish-water, temporal variation, multimesh gillnet, perch, roach, ruffe, trout
Subject (faculty): Faculty of Veterinary Medicine and Animal Science > Dept. of Wildlife, Fish, and Environmental studies
Divisions: SLU > Faculty of Forest Sciences
Depositing User: Kristina Johansson
Date Deposited: 20 Jan 2009
Last Modified: 18 Aug 2015 10:10
URI: http://ex-epsilon.slu.se/id/eprint/3016

Actions (login required)

View Item View Item

Downloads

Downloads per year since May 2015

View more statistics