Article
Psychology, Multidisciplinary
David S. Gordon
Summary: This study investigated the impact of COVID-19 and climate change on human survival and reproductive decision-making, finding that individuals who knew people affected by COVID-19 may lean towards having more children, while there was no clear relationship observed between beliefs about climate change and reproductive choices.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Multidisciplinary Sciences
Eva Daskalaki, Evangelos Koufalis, Donna Dimarchopoulou, Athanassios C. Tsikliras
Summary: A gap analysis on the biology of Mediterranean marine fishes was conducted, identifying the knowledge gap and areas for future research. The length-weight relationships were the most studied characteristic, while mortality was the least studied. The western and eastern Mediterranean Sea had the most comprehensive data collection. It is recommended to shift research focus towards vulnerable and potentially threatening species.
Article
Biodiversity Conservation
Ryosuke Nakadai
Summary: This study developed novel indices to evaluate community compositional shifts over time by considering the contributions of individual life histories. The results have important implications for macroecology and biodiversity research.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Janne Swaegers, Rosa A. Sanchez-Guillen, Jose A. Carbonell, Robby Stoks
Summary: This study investigates the plasticity and evolution of trait changes in damselflies during their range expansion into a warmer region. The results suggest that the populations have evolved adaptive changes in terms of a faster pace-of-life, smaller body size, higher energy budget, and increased expression levels of the heat shock gene DnaJ. However, there is incomplete convergence towards the native sister species for thermal plasticity in traits associated with anaerobic metabolism and melanization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Travis C. Tai, Piero Calosi, Helen J. Gurney-Smith, William W. L. Cheung
Summary: Ocean acidification has varying impacts on lobster populations, with the largest effects seen in juvenile stages. Managing fishing pressure and size limits can help mitigate some negative effects of OA, but the overall impact of climate change overshadows these population gains. Addressing greenhouse gas emissions is crucial for long-term population resilience.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
Matthew E. Nielsen, Soren Nylin, Christer Wiklund, Karl Gotthard
Summary: Photoperiod is a common cue for seasonal plasticity and phenology, but climate change can create cue-environment mismatches. We tested for climate change-associated evolution of photoperiod-cued seasonal life history plasticity in Pararge aegeria by replicating common garden experiments conducted 30 years ago. We found evidence for evolutionary change in the larval reaction norm, but not in the pupal reaction norm, highlighting the importance of considering the whole life cycle in understanding the impacts of climate change on phenology.
Article
Biology
Michael R. Skeeles, Timothy D. Clark
Summary: The lifetime growth of nearly all fishes has two distinct phases - rapid growth in juveniles and deceleration in adults. However, the underlying mechanisms causing adult growth to slow down are still uncertain. This study tested the hypotheses that adult growth slows due to oxygen limitation or energy limitation. By tracking the growth trajectories of over 100 female Galaxias maculatus during their first 3 months of adulthood, the researchers provided subsets of fish with additional energy, supplementary oxygen, or both, and found that additional energy improved growth marginally, while supplementary oxygen had no effect. This suggests a role for energy reallocation in the deceleration of adult growth.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Chuanqi He, Ci-Jian Yang, Jens M. Turowski, Gang Rao, Duna C. Roda-Boluda, Xiao-Ping Yuan
Summary: One of the most conspicuous features of a mountain belt is the main drainage divide, which can be used to extract tectonic information and increases in mountain asymmetry with increasing uplift gradient and advection velocity. The authors constrain the tectonic uplift and advection of a mountain belt from the location and migration direction of its main drainage divide.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Studies
Christian Salvadeo, Hem Nalini Morzaria-Luna, Hector Reyes-Bonilla, Antonina Ivanova-Bonchera, David Petatan Ramirez, Eduardo Juarez-Leon
Summary: Fishing activities are vulnerable to climate change, especially in fishery-dependent coastal communities with low economic diversification. Adaptation measures, such as economic diversification, improvement in processing and commercialization of fishery products, and enhanced fisheries management, are crucial in reducing vulnerability to the impacts of climate change. Mexico has the policy framework in place for these measures, but requires financing and more efficient regulatory processes to address the rapid effects of climate change in marine systems.
Article
Ecology
Sebastian A. Pardo, Nicholas K. Dulvy
Summary: An important challenge in ecology is to understand variation in species' maximum intrinsic rate of population increase (r(max)). This study evaluates the relative importance of body mass, temperature, and depth on r(max) for sharks and rays, finding that both temperature and depth have separate effects on r(max) estimates. This research provides insights into the potential limiting factors for population growth in deep-sea sharks and rays.
ECOLOGY AND EVOLUTION
(2022)
Article
Fisheries
Carl Jakob Rorvik, Bjarte Bogstad, Geir Ottersen, Olav Sigurd Kjesbu
Summary: This study investigated the maturity of Northeast Arctic cod under the influence of fishing mortality, key biophysical factors, and fisheries-induced adaptive change. The results showed that the increase in F5-8 led to a decrease in A50. Analysis of total stock biomass, sea temperature, and F5-8 fluctuations provided a better understanding of A50 responses. The study also emphasized the necessity of FIAC in explaining the observed changes in A50.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Ecology
David M. Anderson, James F. Gillooly
Summary: Different species have varying strategies in allocating resources to offspring size and number, with tradeoffs between offspring survivorship and fecundity limiting reproductive success. Research shows that survivorship tends to increase proportionally with relative offspring mass, while fecundity decreases in proportion with offspring mass. The overall reproductive success is generally independent of offspring mass.
Article
Ecology
Marie-Pierre Chapuis, Benjamin Pelissie, Cyril Piou, Floriane Chardonnet, Christine Pages, Antoine Foucart, Elodie Chapuis, Helene Jourdan-Pineau
Summary: Under environmental stress, desert locust traits show different levels of additive genetic variation, with traits closely linked to fitness largely unaffected. Traits under strong stabilizing selection display genetic invariance in stressful environments, while traits less associated with fitness exhibit a marked increase in additive genetic variation. This study emphasizes the importance of assessing the proximity to fitness of a trait on a case-by-case basis and considering the processes of canalization and plasticity in controlling phenotypic variation.
ECOLOGY AND EVOLUTION
(2021)
Review
Fisheries
Paul E. Caiger, Lyndsey S. Lefebve, Joel K. Llopiz
Summary: The mesopelagic zone in the world's oceans is a vast area holding abundant vertebrates, but our understanding of the life history of these animals is limited. Current research is focused mostly on myctophids, with other groups lacking investigation. Research is concentrated in the northern hemisphere, with little coverage in the Indo-Pacific region and the poles.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Review
Biodiversity Conservation
Caitlin P. Wells, Rebecca Barbier, Shelley Nelson, Rachel Kanaziz, Lise M. Aubry
Summary: Global climate change is impacting the life history traits of mammalian hibernators, with warmer temperatures advancing phenology and increasing reproductive success, while warming and drying trends have uncertain effects on body condition and survival.
Article
Multidisciplinary Sciences
Lisa K. Eckford-Soper, Ken H. Andersen, Trine Frisbaek Hansen, Donald E. Canfield
Summary: The microfossil record suggests the presence of eukaryotic organisms in the marine ecosystem around 1,700 million years ago, even though biomarkers indicating their existence only appear in the rock record about 780 million years ago. This challenges the idea that eukaryotes were minor ecosystem members before the rise of algae and suggests that they played a significant role in the ecosystem much earlier.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Ecology
Emil F. Frolich, Uffe H. Thygesen, Ken H. Andersen
Summary: This study explores the impact of individual behavior on population and ecosystem dynamics. By modeling behavior in a three-trophic chain, it is found that optimal behavior eliminates the effect of top-down forcing on the population, while bottom-up forcing increases populations at all trophic levels.
ECOLOGICAL COMPLEXITY
(2022)
Article
Fisheries
J. Rasmus Nielsen, Berthe M. J. Vastenhoud, Sieme Bossier, Flemming Mohlenberg, Asbjorn Christensen, Rabea Diekman, Grete E. Dinesen, Ole R. Eigaard, Mayya Gogina, Michael L. Zettler, Alexander Darr, Francois Bastardie
Summary: This study compared the short term impacts of fishing pressure with the variability induced by environmental drivers on quantitative benthic community impact indicators. The results showed that demersal fishing had evident impacts on all indicators, especially in soft muddy and sandy habitats and during the second quarter of the year. Additionally, all environmental drivers, especially current speed, had significant impacts on all indicators, which were of the same or larger magnitude as fishing impacts. Therefore, when using quantitative benthic fishing impact indicators, the short term influence of environmental drivers and seasonal differences in fishing pressure should be considered.
FISHERIES RESEARCH
(2023)
Article
Multidisciplinary Sciences
Asbjorn Christensen, Jens Murawski, Jun She, Michael St. John
Summary: This study simulated the spatial distribution and dynamics of macro plastic in the Baltic Sea using a new Lagrangian approach called DRRS. The simulations were based on mapping the macro plastic sources and five years of wind, wave, and current data. The model setup was validated against beach litter observations and showed significant temporal and spatial variability in plastic concentrations. The study also found that litter sorting patterns are observable in many coastal and offshore environments.
Article
Marine & Freshwater Biology
Nicole C. Millette, Rebecca J. Gast, Jessica Y. Luo, Holly Moeller, Karen Stamieszkin, Ken H. Andersen, Emily F. Brownlee, Natalie R. Cohen, Solange Duhamel, Stephanie Dutkiewicz, Patricia M. Glibert, Matthew D. Johnson, Suzana G. Leles, Ashley E. Maloney, George B. Mcmanus, Nicole Poulton, Sarah D. Princiotta, Robert W. Sanders, Susanne Wilken
Summary: Phago-mixotrophy, the combination of photoautotrophy and phagotrophy, is gaining attention in the study of mixoplankton. Many protistan plankton species engage in phago-mixotrophy to obtain nutrients, but our understanding of mixoplankton lags behind zooplankton and phytoplankton. Five research directions are proposed to advance the field: evolution, traits and trade-offs, biogeography, biogeochemistry and trophic transfer, and in situ methods.
JOURNAL OF PLANKTON RESEARCH
(2023)
Review
Oceanography
K. H. Andersen, A. W. Visser
Summary: This article reviews the size-based approach to modeling unicellular plankton cells and communities, including the influence of cell size on individual processes, the structure and function of the entire ecosystem, and the description of community structure and trophic strategies. The authors also develop an analytical approximate solution and discuss the strengths and limitations of size-based representations of plankton communities.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Fisheries
Trondur J. Kragesteen, Trodur T. Johannesen, Anne Sandvik, Ken H. Andersen, Ingrid Askeland Johnsen
Summary: Modern marine salmon aquaculture requires effective management of salmon lice infestations. This study proposes a mechanistic model that integrates the development of lice with temperature and hydrodynamic simulations, providing realistic patterns of epidemic development. The model can evaluate regional management strategies, such as treatment thresholds, and suggests that lowering the threshold could benefit wild salmonid populations.
Article
Biodiversity Conservation
Henry H. Hansen, Ken H. Andersen, Eva Bergman
Summary: As the removal of dams becomes more common, it has become important to understand how fish communities respond to dam removal. In this study, a size spectrum model was developed to predict fish community responses after a dam was removed in Sweden. The model showed that dam removal can have negative impacts on community biomass and recovery time, and not all species may benefit from dam removal.
ECOLOGICAL INDICATORS
(2023)
Article
Ecology
Daniel van Denderen, Aurore A. Maureaud, Ken H. Andersen, Sarah Gaichas, Martin Lindegren, Colleen M. Petrik, Charles A. Stock, Jeremy Collie
Summary: Theory predicts that fish community biomass will decline with increasing temperature due to higher metabolic losses. However, whether these predictions explain observed macroecological patterns in fish community biomass is unknown. This study tests these predictions and finds that temperature is the main driver of cross-regional variation in fish community biomass.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2023)
Article
Environmental Sciences
Philip A. H. Smith, Kristian Aa. Sorensen, Bruno Buongiorno Nardelli, Anshul Chauhan, Asbjorn Christensen, Michael St John, Filipe Rodrigues, Patrizio Mariani
Summary: This study proposes a convolutional neural network method for reconstructing vertical profiles of temperature and salinity using remotely-sensed surface measurements and in situ vertical profiles. The model is trained on satellite and in situ data from the Atlantic Ocean, and the results show improved performance compared to current state-of-the-art methods. This approach can be easily extended to other basins or the global ocean.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Anshul Chauhan, Philip A. H. Smith, Filipe Rodrigues, Asbjorn Christensen, Michael St. John, Patrizio Mariani
Summary: Warm temperature anomalies in the global ocean are increasing and may have consequences on marine ecosystems. This study analyzes the distribution and dynamics of marine heat waves (MHWs) and evaluates their impacts on phytoplankton communities. The findings suggest that different drivers can generate MHWs, leading to varied effects on phytoplankton dynamics across different ocean regions.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Aurelia Pereira Gabellini, Patrizio Mariani, Asbjorn Christensen
Summary: The study investigates the linkages between population variability of commercial fish species in the Atlantic Ocean and the primary production and transport processes of eggs and larvae. By simulating the dispersion of eggs and larvae and considering the ecological information of major fish stocks, the study finds marked differences in how physical and biological processes interact in the early life stages of different fish groups in the Atlantic Ocean.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Eva Friis Moller, Asbjorn Christensen, Janus Larsen, Kenneth D. Mankoff, Mads Hvid Ribergaard, Mikael Sejr, Philip Wallhead, Marie Maar
Summary: The Greenland ice sheet is melting at an accelerated rate, while the Arctic sea ice extent is decreasing. These changes in ice conditions have significant impacts on the productivity of the coastal ocean around Greenland. A study conducted in Disko Bay, west Greenland, shows that the reduction in sea ice cover and increased freshwater discharge can synergistically increase primary productivity in the coastal ocean.
Article
Ecology
Jerome Pinti, Tim DeVries, Tommy Norin, Camila Serra-Pompei, Roland Proud, David A. Siegel, Thomas Kiorboe, Colleen M. Petrik, Ken H. Andersen, Andrew S. Brierley, Andre W. Visser
Summary: The daily vertical migrations of fish and other metazoans contribute significantly to the carbon sequestration by the biological pump. Using a game-theoretic food-web model, we estimate global carbon fluxes and sequestration by fish and zooplankton. The carbon sequestered by fish and multicellular zooplankton is conservatively more than 50% of the estimated global total and has a longer sequestration timescale than previously reported.
Article
Biodiversity Conservation
Marie Plambech Ryberg, Asbjorn Christensen, Christian Jorgensen, Stefan Neuenfeldt, Peter Skov, Jane W. Behrens
Summary: Changes in physiological processes can reveal individual responses to environmental stressors. Bioenergetics modelling helps to understand the outcomes of stressor combinations. In this study, we used a bioenergetics model to examine the effects of parasite infection on cod growth and body condition. The results showed that infection negatively affects cod growth and body condition, which may eventually lead to induced mortality.
CONSERVATION PHYSIOLOGY
(2023)
