Browsing Bergen Open Research Archive by Author "Ottmann, Daniel"
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Model of mesopelagic fish predation on eggs and larvae shows benefits of tuna spawning under full moon
Ottmann, Daniel; Langbehn, Tom; Reglero, Patricia; Alvarez-Berastegui, Diego; Fiksen, Øyvind (Journal article; Peer reviewed, 2023)Most mesopelagic fish are small planktivores that migrate up at nightfall to feed in the safety of darkness and descend to depth at dawn to escape visual predators. However, the trophic roles can reverse since mesopelagic ... -
Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
Ottmann, Daniel; Fiksen, Øyvind; Martín, Melissa; Alemany, Francisco; Prieto, Laura; Álvarez-Berastegui, Diego; Reglero, Patricia (Journal article; Peer reviewed, 2021)Bluefin tunas across the world migrate long distances to spawn in particularly warm and oligotrophic areas constrained by oceanographic fronts. The low abundance of predators in these areas increases survival chances of ...