Blar i Brage IMR på forfatter "Nash, Richard David Marriott"
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Broad-scale distribution of the winter protozooplankton community in the North Sea
Bils, Franziska; Moyano, Marta; Aberle-Malzahn, Nicole; van Damme, Cindy JG; Nash, Richard David Marriott; Kloppmann, Matthias; Loots, Christophe; Peck, Myron A. (Journal article; Peer reviewed, 2018)Protozooplankton (PZP) (here size range: 12–200 μm) are rarely sampled over a broad scale, especially in ecosystem monitoring programs, despite their trophodynamic importance as grazers in the microbial loop and as prey ... -
Broad-scale distribution of the winter protozooplankton community in the North Sea.
Bils, Franziska; Moyano, Marta; Aberle-Malzahn, Nicole; van Damme, Cindy JG; Nash, Richard David Marriott; Kloppmann, Matthias; Loots, Christophe; Peck, Myron A. (Peer reviewed; Journal article, 2018)Protozooplankton (PZP) (here size range: 12–200 μm) are rarely sampled over a broad scale, especially in ecosystem monitoring programs, despite their trophodynamic importance as grazers in the microbial loop and as prey ... -
Characteristics of the Norwegian Coastal Current during years with high recruitment of Norwegian spring spawning herring (Clupea harengus L.)
Skagseth, Øystein; Slotte, Aril; Stenevik, Erling Kåre; Nash, Richard David Marriott (Journal article; Peer reviewed, 2015-12-04)Norwegian Spring Spawning herring (NSSH) Clupea harengus L. spawn on coastal banks along the west coast of Norway. The larvae are generally transported northward in the Norwegian Coastal Current (NCC) with many individuals ... -
Comparative biology and population mixing among local, coastal and offshore Atlantic herring (Clupea harengus) in the North Sea, Skagerrak, Kattegat and western Baltic
Berg, Florian; Slotte, Aril; Johannessen, Arne; Kvamme, Cecilie; Clausen, Lotte A.W.; Nash, Richard David Marriott (Peer reviewed; Journal article, 2017) -
Defining sustainable and precautionary harvest rates for data-limited short-lived stocks: a case study of sprat (Sprattus sprattus) in the English Channel
Walker, N.D.; Ouréns, R.; Ball, J.E.; Van Der Kooij, Der; Uriarte, A.; White, J.; Carpi, Piera; Schuchert, P.; Nash, Richard David Marriott (Peer reviewed; Journal article, 2023)Empirical harvest control rules set catch advice based on observed indicators and are increasingly being used worldwide to manage fish stocks that lack formal assessments of stock and exploitation status. Within the ... -
Development stage distribution as a proxy for feeding success and growth for first feeding Norwegian spring spawning herring larvae
Stenevik, Erling Kåre; Nash, Richard David Marriott; Folkvord, Arild (Peer reviewed; Journal article, 2020)The estimation of growth rates in young herring larvae (Clupea harengus) in the field can be difficult because the primary increments in the otoliths may not be discernible or formed at a daily level. Likewise, the estimation ... -
Drift indices confirm that rapid larval displacement is essential for recruitment success in high-latitude oceans
Tiedemann, Maik; Slotte, Aril; Nash, Richard David Marriott; Stenevik, Erling Kåre; Kjesbu, Olav Sigurd (Peer reviewed; Journal article, 2021)Larval drift is a key process for successful fish recruitment. We used Norwegian spring-spawning herring (Clupea harengus) as model species to investigate the relationship between larval drift and recruitment. Larval drift ... -
Earlier hatching and slower growth, a key to survival in the early life history of Norwegian spring spawning herring
Slotte, Aril; Husebø, Åse; Berg, Florian; Stenevik, Erling Kåre; Folkvord, Arild; Fossum, Petter; Mosegaard, Henrik; Vikebø, Frode Bendiksen; Nash, Richard David Marriott (Journal article; Peer reviewed, 2018)Faster growth in fish larvae is often associated with enhanced survival, and here we investigated whether surviving juvenile Norwegian spring spawning herring Clupea harengus L. generally come from a pool of fast-growing ... -
Environmental influences on Norwegian spring-spawning herring (<i>Clupea harengus</i> L.) larvae reveal recent constraints in recruitment success
Tiedemann, Maik; Nash, Richard David Marriott; Stenevik, Erling Kåre; Stiasny, Martina, H.; Slotte, Aril; Kjesbu, Olav Sigurd (Peer reviewed; Journal article, 2020)The lack of any abundant recruiting year class of Norwegian spring-spawning (NSS) herring between 2005 and 2015 contributed to an approximate reduction of 40% in the spawning-stock biomass since 2009, i.e. from 7 to 4 ... -
Genetic analysis redraws the management boundaries for the European sprat
Sanchez, Maria Quintela; Kvamme, Cecilie; Bekkevold, Dorte; Nash, Richard David Marriott; Jansson, Eeva; Sørvik, Anne Grete Eide; Taggart, John B.; Skaala, Øystein; Dahle, Geir; Glover, Kevin (Peer reviewed; Journal article, 2020)Sustainable fisheries management requires detailed knowledge of population genetic structure. The European sprat is an important commercial fish distributed from Morocco to the Arctic circle, Baltic, Mediterranean, and ... -
Genetic response to human-induced habitat changes in the marine environment: A century of evolution of European sprat in Landvikvannet, Norway
Sanchez, Maria Quintela; Richter-Boix, Alex; Bekkevold, Dorte; Kvamme, Cecilie; Berg, Florian; Jansson, Eeva; Dahle, Geir; Besnier, Francois; Nash, Richard David Marriott; Glover, Kevin Alan (Peer reviewed; Journal article, 2021)Habitat changes represent one of the five most pervasive threats to biodiversity. However, anthropogenic activities also have the capacity to create novel niche spaces to which species respond differently. In 1880, one ... -
Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life-history dynamics
Geffen, Audrey J.; Albretsen, Jon; Huwer, Bastian; Nash, Richard David Marriott (Peer reviewed; Journal article, 2021)Lemon sole Microstomus kitt is a commercially valuable flatfish species that occurs in shelf waters around the northeast Atlantic. Only the most basic life-history information is available for the North Sea. Spawning is ... -
Linking dispersal connectivity to population structure and management boundaries for saithe in the Northeast Atlantic
Myksvoll, Mari Skuggedal; Devine, Jennifer Ann; Quintela, Maria; Geffen, Audrey J.; Nash, Richard David Marriott; Sandvik, Anne Dagrun; Besnier, Francois; Saha, Atal; Dahle, Geir; Jansson, Eeva; Nedreaas, Kjell Harald; Johansen, Torild (Peer reviewed; Journal article, 2021)Population connectivity is an increasingly important focal area for the understanding of how marine fish populations respond to anthropogenic pressures like climate change and fisheries. Our model species, the saithe ... -
Management Scenarios Under Climate Change – A Study of the Nordic and Barents Seas
Hansen, Cecilie; Nash, Richard David Marriott; Drinkwater, Kenneth F.; Hjøllo, Solfrid Sætre (Journal article; Peer reviewed, 2019)The effects of increasing fishing pressure in combination with temperature increases in the Nordic and Barents Seas have been evaluated using an end-to-end model for the area forced by a downscaled RCP 4.5 climate scenario. ... -
Operationalizing ensemble models for scientific advice to fisheries management
Jardim, Ernesto; Azevedo, Manuela; Brodziak, Jon; Brooks, Elizabeth N; Johnson, Kelli F; Klibansky, Nikolai; Millar, Colin; Minto, Cóilín; Mosqueira, Iago; Nash, Richard David Marriott; Vasilakopoulos, Paraskevas; Wells, Brian K (Peer reviewed; Journal article, 2021)This paper explores the possibility of using the ensemble modelling paradigm to fully capture assessment uncertainty and improve the robustness of advice provision. We identify and discuss advantages and challenges of ... -
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure
Allen, Bridie; Ray, Jessica Louise; Tiedemann, Maik; Komyakova, Valeriya; Vikebø, Frode Bendiksen; Skaar, Katrine Sandnes; Stiasny, Martina H.; Folkvord, Arild; Nash, Richard David Marriott; Stenevik, Erling Kåre; Kjesbu, Olav Sigurd (Peer reviewed; Journal article, 2021)Mortality rates in the early life-history stages of fishes are generally high yet identifying the causes remain unclear. Faltering recruitment rates of Atlantic herring (Clupea harengus) in the Norwegian Sea indicate a ... -
Recruitment regime shifts and nonstationarity are widespread phenomena in harvestable stocks experiencing pronounced climate fluctuations
Ma, Shuyang; Huse, Geir; Ono, Kotaro; Nash, Richard David Marriott; Sandø, Anne Britt; Nedreaas, Kjell Harald; Hjøllo, Solfrid Sætre; Sundby, Svein; Clegg, Thomas L; Vølstad, Jon Helge; Kjesbu, Olav Sigurd (Peer reviewed; Journal article, 2023)Methods to reliably identify jump discontinuities in biological time series and to assess the specific contribution of various covariates are rapidly progressing. Here, we took advantage of these statistical improvements ... -
Skipped spawning in Northeast Arctic haddock Melanogrammus aeglefinus
Skjæraasen, Jon Egil; Korsbrekke, Knut; Nilsen, Trygve; Fonn, Merete; Kjesbu, Olav Sigurd; Dingsør, Gjert Endre; Nash, Richard David Marriott (Journal article; Peer reviewed, 2015-04-22)