Blar i forfatter "Presa, Pablo"

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    • Effects of weathered polyethylene microplastic ingestion on sexual maturation, fecundity and egg quality in maturing broodstock Atlantic cod Gadus morhua 

      Fernández-Míguez, Maria; Puvanendran, Velmurugu; Burgerhout, Erik; Presa, Pablo; Tveiten, Helge; Vorkamp, Katrin; Hansen, Øyvind J; Johansson, Gunhild Seljehaug; Bogevik, André Sture (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-09)
      Microplastics (MPs) have become a global issue as they are omnipresent in the ocean. Fish ingesting MPs through feed could be affected in their physiological function, e.g., disrupted enzyme production and function, reduction of feeding and reproductive failure. This study assessed the effects of feed containing naturally weathered MPs from the Oslofjord (Norway) on the reproductive physiology of ...

    • Gene Expression and Phenotypic Assessment of Egg Quality across Developmental Stages of Atlantic Cod throughout the Spawning Season 

      Fernández Míguez, María; Presa, Pablo; Puvanendran, Velmurugu; Tveiten, Helge; Hansen, Øyvind J; Pérez, Montse (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-08)
      Egg quality in fishes is commonly determined by fertilisation success and cleavage patterns as a phenotypic outcome of underlying regulatory mechanisms. Although these phenotypic estimators of egg quality are useful in farming conditions, these “good quality” egg batches do not always translate to good larval growth and survival. The identification of genes involved in embryonic development may help ...

    • Gene Expression and Phenotypic Assessment of Egg Quality across Developmental Stages of Atlantic Cod throughout the Spawning Season 

      Fernandez Miguez, Maria; Presa, Pablo; Puvanendran, Velmurugu; Tveiten, Helge; Hansen, Øyvind J; Pérez, Montse (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-08)
      Egg quality in fishes is commonly determined by fertilisation success and cleavage patterns as a phenotypic outcome of underlying regulatory mechanisms. Although these phenotypic estimators of egg quality are useful in farming conditions, these “good quality” egg batches do not always translate to good larval growth and survival. The identification of genes involved in embryonic development may help ...

    • “Influence of short-to-continuous and continuous photoperiods combined with elevated temperatures on sexual maturation in lumpfish (Cyclopterus lumpus, L. 1758)” 

      Mlingi, Frank Thomas; Puvanendran, Velmurugu; Burgerhout, Erik; Mommens, Maren; Hansen, Øyvind J; Míguez, María Fernández; Presa, Pablo; Tveiten, Helge; Tomkiewicz, Jonna; Kjørsvik, Elin (Journal article; Tidsskriftartikkel; Peer reviewed, 2025-12-02)
      We tested the photothermal effects on sexual maturation in the broodstock of lumpfish (Cyclopterus lumpus) using short-to-continuous (LDL) and continuous (LL) photoperiods for 24 weeks, with temperature elevation during final maturation in females. The lumpfish sexual maturation was phased differently between the two photoperiods, while temperature elevation enhanced the photoperiod changes. Female ...