Sofia Ferreira

Postdoctoral Fellow - Centre for Ecological and Evolutionary Synthesis

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Email sofia.ferreira@ibv.uio.no

Phone +47 40844792

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Room 3311

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Visiting address Blindernveien 31 0371 Oslo

Postal address Postboks 1066 Blindern 0316 Oslo

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Background

My main research topics focus on the effects of environmental conditions on plankton and fish stocks under external pressures, such as climate change and fisheries. I graduated from the University of Algarve (Portugal) in Marine Biology, finished a MSc in Fisheries Biology and Management at the University of Bergen (Norway), and completed a PhD in Marine Ecology and Oceanography from the Technical University of Denmark (Denmark). I have since joined two very distinct projects for my first and second post-doctoral positions; one on plankton seasonality in the NorthEast Pacific at the University of Washington (USA) and Strathclyde University (UK), and another one on seasonal movements of commercial fish populations explained by the environment at the Technical University of Denmark (Denmark).

SPITFIRE

I started working on “SPITFIRE - Spatial variability and Implications of the Timing of Fish Responses to the Environment” on November 1, 2018. This is a Marie-Curie funded project and is a collaboration with Joël Durant from CEES and Anna Neuheimer from the University of Hawaii at Manoa (USA), but currently on leave at a COFUND (Marie Curie) Fellowship at the Aarhus Institute of Advanced Studies (Denmark). The main goal of SPITFIRE is to quantify the ability of an improved MMH to globally explain fish dynamics, by acknowledging the roles of zooplankton, space and mismatch. Soon, I will be adding updates on SPITFIRE on my website www.asofiaaferreira.com.

Tags: Marine biology, Plankton ecology, Match-mismatch, Phenology, Fish recruitment, Ocean colour; Denmark; Nordic

Ferreira ASA, Stige LC, Neuheimer AB, Bogstad B, Yaragina N, Prokopchuke I, Durant JM. Match-mismatch dynamics in the Norwegian-Barents Sea system. 2020. Marine Ecology Progress Series, LFCav5. https://doi.org/10.3354/meps13276.
Friedland KD, Mouw CB, Asch RG, Ferreira ASA, Henson S, Hyde K, Morse RE, Thomas AC, Brady DC. Phenology and time series trends of the dominant seasonal phytoplankton bloom across global scales. 2018. Global Ecology and Biogeography, 00:1–19. https://doi.org/10.1111/geb.12717.
Holt RE, Woods P, Ferreira ASA, Bardarson H, Bonanomi S, Boonstra WJ, Butler W, Diekert FK, Fouzai N, Holma M, Kokkalis A, Kvile KØ, Malanski E, Nieminen E, Ottosen KM, Richter A, Pedersen MW, Richter A, Rogers L, Romagnoni G, Snickars M Törnroos A, Weigel B, Whittington JD, Yletyinen J. Avoiding pitfalls in interdisciplinary education. 2017. Climate Research, 74:121-129. https://doi.org/10.3354/cr01491.
Kristiansen I, Gaard E, Hátún H, Jonasdottir S, Ferreira ASA. Persistent shift of Calanus spp. in the south-western Norwegian Sea since 2003, linked to ocean climate. 2015. ICES Journal of Marine Science, 10.1093/icesjms/fsv222.
Pedersen MW, Kokkalis A, Bardarson H, Bonanomi S, Boonstra WJ, Butler W, Diekert FK, Fouzai N, Holma M, Holt RE, Kvile KØ, Nieminen E, Ottosen KM, Richter A, Rogers L, Romagnoni G, Snickars M, Törnroos A, Weigel B, Whittington JD, Woods P, Yletyinen J, Ferreira ASA. Trends in marine climate change research in the Nordic region since the first IPCC report. 2015. Climatic Change, 134(1-2): 147-161.
Boonstra WJ, Ottosen KM, Ferreira ASA, Richter A, Rogers L, Pedersen MW, Kokkalis A, Bardarson H, Bonanomi S, Butler W, Diekert FK, Fouzai N, Holma M, Holt RE, Kvile KØ, Malanski E, Nieminen E, Romagnoni G, Snickars M, Törnroos A, Weigel B, Woods P, Yletyinen J, Whittington JD. What are the major global threats and impacts in marine environments? Investigating the contours of a shared perception among marine scientists from the bottom-up. 2015. Marine Policy, 60: 197-201.
Ferreira ASA, Hátún H, Counillon F, Payne MR, Visser AW. Synoptic scale analysis of mechanisms driving surface chlorophyll dynamics in the North Atlantic. 2015. Biogeosciences, 12, 3641-3653, doi:10.5194/bg-12-3641-2015.
Ferreira ASA, Visser AW, MacKenzie B, Payne MR. Accuracy and precision in the calculation of phenology metrics. 2014. Journal of Geophysical Research, 119: 8438–8453, doi:10.1002/2014JC010323.
Silva T, Gislason A, Licandro P, Marteinsdóttir G, Ferreira ASA, Gudmundsson K, Astthorsson OS. Long-term changes of euphausiids in shelf and oceanic habitats southwest, south and southeast of Iceland. 2014. Journal of Plankton Research, 0(0): 1-17.
Hovland EK, Dierssen HM, Ferreira ASA, Johnsen G. Dynamics regulating major trends in Barents Sea temperatures and the subsequent effect on remotely sensed particulate inorganic carbon. 2013. Marine Ecology Progress Series, 484: 17-32.
Ferreira ASA, Stenevik E,Vollset KW, Korneliussen R, Folkvord A. Vertical migration of Norwegian spring-spawning herring larvae in relation to predator and prey distribution. 2012. Marine Biology Research, 8: 605-614.

Ferreira, Ana Sofia De Araújo; Stige, Leif Christian; Neuheimer, Anna B.; Bogstad, Bjarte; Yaragina, Natalia A.; Prokopchuk, Irina & Durant, Joel Marcel (2020). Match-mismatch dynamics in the Norwegian-Barents Sea system. Marine Ecology Progress Series. ISSN 0171-8630. 650, s 81- 94 . doi: 10.3354/MEPS13276 Full text in Research Archive. Show summary
A key process affecting variation in the recruitment of fish into fisheries is the spatio-temporal overlap between prey and predator (match-mismatch hypothesis, MMH). The Northeast Arctic cod Gadus morhua and its dominant prey, the copepod Calanus finmarchicus, have long been studied in the Norwegian-Barents Sea system. However, the mechanistic explanation of how cod survival is affected by MMH dynamics remains unclear. Most MMH studies have focused on either the time synchrony or the spatial overlap between trophic levels. Here, we used G. morhua larvae and C. finmarchicus data collected in the Norwegian-Barents Sea via ichthyoplankton surveys from 1959-1992 to assess the effect of the predator-prey relationship on predator recruitment to the fisheries at age 3 (as a measure of survival) and to develop a metric of predator-prey overlap using spatio-temporal statistical models. We then compared the interannual variability of the predator-prey overlap with the predator’s abundance at recruitment to assess how MMH dynamics explain the survival of cod during its early life stages. We found that the amount of overlap between cod larvae (length: 11-15 mm) and their prey explained 29% of cod recruitment variability. Positive correlations between predator-prey overlap and subsequent recruitment were also found for predators of 6-10 and 16-20 mm, but not for 21+ mm. This improved predator-prey overlap metric is thus (1) useful to better understand how predator-prey dynamics at early life stages of fish impact the survival of later stages; and (2) a valuable tool for assessing the state of an ecosystem.

Published Nov. 5, 2018 12:42 PM - Last modified Apr. 22, 2020 11:04 PM

Sofia Ferreira

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SPITFIRE

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