Sökning: "spring-spawning fish"

Hittade 5 uppsatser innehållade orden spring-spawning fish.

  1. 1. Naturvärdesbedömning av Utanåfladen; En inventering av vårlekande fisk, bottenfauna och vegetation

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Bessie Östergren; [2014]
    Nyckelord :;

    Sammanfattning : There are several thousands shallow bays along the Swedish east coast. Most of them are disturbed by different human activities, and undisturbed bays can be considered as quite unique. LÄS MER

  3. 2. An ecological study of the migration, food composition and relative abundance of three-spined stickleback (Gasterosteus aculeatus) in a shallow area in Kalmar Sound.

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Peter Söderling; [2013]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  4. 3. Transcriptome analysis of Atlantic Herring (Clupea harengus) using Next Generation Sequencing (NGS)

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Nima Rafati; [2011]
    Nyckelord :Atlantic Herring; Transcriptome; RNA-Seq; Next Generation Sequencing;

    Sammanfattning : The Atlantic herring is one of the most abundant fish species in the Northern hemisphere especially in the Northeast Atlantic. There are various stocks of this fish due to their spawning time and their vast distribution. LÄS MER

  5. 4. Vandring av vårlekande fisk och jämförelse av fångst mellan ryssja och strömöversiktsnät i Hammerstaån, Stockholms län

    Kandidat-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Ulf Johansson; [2011]
    Nyckelord :Spring-spawning fish; inventory; Migation; bream; fyke nets; Strömöversiktsnät; Hammerstaån; Muskån; Vårlekande fisk; karpfiskar; vimma; inventering; provfiske;

    Sammanfattning : During the last two hundred years many wetlands and streams in Sweden have been lowered to provide land for agriculture and forestry. Some of the coastal wetlands and streams probably served as spawning sites for certain species of fish in the Baltic Sea, but the present situation is not well known. LÄS MER

  7. 5. Vandring av vårlekande fisk och jämförelse av fångst mellan ryssja och strömöversiktsnät i Hammerstaån, Stockholms län

    Kandidat-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Ulf Johansson; [2011]
    Nyckelord :Migration; inventory; spring-spawning fish; bream; fyke nets; perch; strömöversiktsnät; Hammerstaån; Muskån; vårlekande fisk; vimma;

    Sammanfattning : During the last two hundred years many wetlands and streams in Sweden have been lowered to provide land for agriculture and forestry. Some of the coastal wetlands and streams probably served as spawning sites for certain species of fish in the Baltic Sea, but the present situation is not well known. LÄS MER