Essays about: "spigg"
Found 2 essays containing the word spigg.
-
1. An ecological study of the migration, food composition and relative abundance of three-spined stickleback (Gasterosteus aculeatus) in a shallow area in Kalmar Sound.
University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)Abstract : The populations of three–spined sticklebacks (Gasterosteus aculeatus) in the Baltic Sea have increased tenfold over the last decade. A large increase in abundance can alter the offshore and coastal food webs. READ MORE
-
2. The effects of water chemistry on fish species distribution : a comparison between isolated and connected lakes in northern Sweden
University essay from SLU/Dept. of Forest Ecology and ManagementAbstract : The correlation between water chemistry and fish species distribution was examined in forty small, coastal lakes in northern Sweden. Lakes were fished in summer and water chemistry sampled mainly in late winter. Twenty out of the forty lakes were isolated from other water bodies and twenty had a direct connection to the sea. READ MORE