Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Øystein Langangen"'
Publikováno v:
npj Ocean Sustainability, Vol 3, Iss 1, Pp 1-7 (2024)
Abstract Climate change is associated with altered oceanographic conditions that tend to shift the geographical distributions of fish. To assess the impact of climate change on fisheries, one must go beyond projections of catch potential and understa
Externí odkaz:
https://doaj.org/article/4a818885cac541ff8699599bbc7d0d43
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Many species around the world have collapsed, yet only some have recovered. A key question is what happens to populations post collapse. Traditionally, marine fish collapses are linked to overfishing, poor climate, and recruitment. We test w
Externí odkaz:
https://doaj.org/article/d04a011caea34424a76a518233fc1129
Publikováno v:
npj Ocean Sustainability, Vol 3, Iss 1, Pp 1-1 (2024)
Externí odkaz:
https://doaj.org/article/41632e32f397489ca8f05fc5e51795be
Publikováno v:
Ecology and Evolution, Vol 11, Iss 23, Pp 16993-17004 (2021)
Abstract Both the Norwegian Spring Spawning herring (Clupea harengus) and the Northeast Arctic (NEA) cod (Gadus morhua) are examples of strong stock reduction and decline of the associated fisheries due to overfishing followed by a recovery. Cod and
Externí odkaz:
https://doaj.org/article/aac9b96d69ed43fa9a4997b16d296615
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Patchiness, defined as spatial heterogeneity in distribution of organisms, is a common phenomenon in zooplankton including ichtyoplankton. In heterogeneous landscapes, depending on the scale of prey and predatory distributions, individuals in patches
Externí odkaz:
https://doaj.org/article/ea03ead6006c4fdca53b584e112251bc
Autor:
Frode B. Vikebø, Ole Jacob Broch, Clarissa Akemi Kajiya Endo, Håvard G. Frøysa, JoLynn Carroll, Jonas Juselius, Øystein Langangen
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
By combining an ocean model, a nutrient-phytoplankton-zooplankton-detritus-model and an individual-based model for early life stages of Northeast Arctic cod we systematically investigate food limitations and growth performance for individual cod larv
Externí odkaz:
https://doaj.org/article/3e05f3c0e7ee4fe7b53126570adca73d
Autor:
Marlene Wæge Stubberud, Yngvild Vindenes, Leif Asbjørn Vøllestad, Ian J. Winfield, Nils Christian Stenseth, Øystein Langangen
Publikováno v:
Ecology and Evolution, Vol 9, Iss 22, Pp 12556-12570 (2019)
Abstract Harvesting is often size‐selective, and in species with sexual size dimorphism, it may also be sex‐selective. A powerful approach to investigate potential consequences of size‐ and/or sex‐selective harvesting is to simulate it in a d
Externí odkaz:
https://doaj.org/article/44675cacabe644148964aae413a94640
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Risk estimates are important measures for the study and practice of conservation ecology. Here, the authors show that such estimates can be substantially biased, and propose an approach to improve accuracy.
Externí odkaz:
https://doaj.org/article/af25890fd4d842b19986d82bb116c349
Publikováno v:
Royal Society Open Science, Vol 7, Iss 2 (2020)
The recruitment and biomass of a fish stock are influenced by their environmental conditions and anthropogenic pressures such as fishing. The variability in the environment often translates into fluctuations in recruitment, which then propagate throu
Externí odkaz:
https://doaj.org/article/6eaed8eaba064abd98052dcf1dacef81
Autor:
Svenja Christiansen, Øystein Langangen, Josefin Titelman, Leif Asbjørn Vøllestad, Stein Kaartvedt
Publikováno v:
Limnology and Oceanography. 67:2677-2690
Knowledge of the three-dimensional behavior and activity patterns of mesopelagic fishes is crucial for understanding their role in ecological and biogeochemical processes in the ocean. We here show that the use of submerged stationary echosounders en