Essays about: "Three-spined stickleback"

Showing result 1 - 5 of 7 essays containing the words Three-spined stickleback.

  1. 1. The effects of eutrophication and browning on prey availability and performance of the three-spined stickleback (Gasterosteus aculeatus)

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Olivia Bell; [2021]
    Keywords : Baltic Sea; benthic habitats; body growth; climate change; coastal areas; diet; fish; stickleback; zooplankton;

    Abstract : Shallow coastal areas often have high productivity and diversity, in part due to the high availability of light and nutrients. At the same time, they are exposed to multiple environmental pressures, such as browning and eutrophication. READ MORE

  3. 2. Influence of reed (Phragmites australis) belts in the Baltic Sea archipelago on pike (Esox lucius) and other coastal fish species

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Niklas Niemi; [2020]
    Keywords : Reed; Phragmites; Pike; Baltic Sea; spatial distribution; habitat utilization; reed expansion; reed management;

    Abstract : Eutrophication, near shore building and human disturbances by dredging and shore alteration have led to increased expansion of the common reed (Phragmites australis) in the archipelago of the Baltic Sea. Reed has an important ecological function such as nursery habitat for many fish species. READ MORE

  4. 3. Stickleback diets in bays along the northen Baltic Sea

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Douglas Skarp; [2019]
    Keywords : stickleback; perch larvae; predation; competition; bay;

    Abstract : Coastal populations of perch (Perca fluviatilis) in the Baltic Sea has declined substantially the last decades while the populations of three-spined sticklebacks (Gasterosteus aculeatus) has increased rapidly during the same time period. Earlier studies have suggested that predation on perch larvae and or competition from sticklebacks are the causes behind the decline in perch. READ MORE

  5. 4. Effect of temporal increases in prey fish abundance on individual growth rates of coastal piscivores

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Johan Penner; [2016]
    Keywords : Three-spined stickleback; Perch; Growth; Intraguild Predation; Ontogeny; Baltic Sea.;

    Abstract : Commercial fishing in the Baltic Sea has led to decrease in abundance of large predatory fish and as a result the predation pressure on smaller fish species has been reduced. Three-spined stickleback (Gasterosteus aculeatus) is among the species that have benefited from reduced predation pressure. READ MORE

  6. 5. 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)

    Author : Peter Söderling; [2013]
    Keywords : Three-spined stickleback; Gasterosteus aculeatus; migration; abundance; population; decline; increase; food; prey; predate; pike; perch; roach; spring; spawn; recruitment; shallow; Kalmar; Baltic; Storspigg; spigg; vandring; förekomst; population; populationsökning; populationsminskning; föda; byte; predera; predator; gädda; abborre; mört; vår; vårlekande; föryngring; lek; grunt; Kalmar; Kalmarsund; Östersjön;

    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