News from Centre for Ocean Life
24 OCT
We welcome new faces at the Centre for Ocean Life!
26 SEP
Using a game theoretic and mechanistic model, researchers from the Centre for Ocean Life showed how traits influencing predator-prey interactions shape the diel vertical...
02 SEP
Thomas Kiørboe, Professor of Ocean Ecology at DTU, receives research prize for his groundbreaking work.
28 AUG
Sea lice on salmon farms are controlled via treatments. Authorities mandate treatments when sea lice infections reach a given threshold. Using a bio-economic model, we...
01 AUG
A new theoretical approach makes it possible to model planktonic predator-prey interactions and quantify the effects of the encounter zone shape for both non-motile and...
10 JUL
While the planet experiences unprecedented human-induced biodiversity loss, from marine to terrestrial realms, and from microbes to large mammals, evidence that biodiversity...
13 JUN
A new theoretical model describes the trade-offs and physiological limits determining the body plan of planktonic filter feeders and explains why gelatinous plankton...
02 MAY
We compiled 14 traits of 1700 marine fish species on three latitudinal gradients to facilitate large-scale studies on fish traits and functional diversity of fish communities...
29 APR
Diatoms contribute nearly half of the marine primary production. These microalgae differ from other phytoplankton groups in having a silicified cell wall, which is the...
01 MAR
Jellyfish are weird creatures that can reproduce in different modes both sexually and asexually. Similar functional strategies are also present in several other species...
25 FEB
Defense mechanisms are very common in unicellular plankton. A wide variety of these mechanisms (toxins, shell etc.) is observed and it is rather difficult to quantify...
22 FEB
A mechanistic model of diatoms reveals a conundrum. The defining physical attributes of diatoms – their silica shell and their large central vacuole – give diatoms an advantage...
12 FEB
Increases in temperature increase enzymatic activity, so one expects growth to also increase. However, this is not always the case. We show that when organisms are resource...
12 FEB
Changes in the distribution of zooplankton in the North Atlantic during the past 55 years has led to major changes in the biological carbon pump.
07 FEB
Our traditional view of the interactions between marine organisms is conceptualized as food webs where species interact with one another mainly via direct consumption...
05 FEB
The North Sea fish community has a long history of intense fishing and environmental change. Scientific bottom trawl surveys, which have been ongoing in the North Sea...
28 JAN
Trade-offs are the cornerstone of trait-based ecology. They describe the advantages and costs of a certain trait, and thus determine when and where organisms with that...
21 JAN
Ectotherms often grow to a smaller adult body size when reared in warmer conditions. Typically, this is because development rate increases faster than growth rate with...
10 JAN
A new paper from the Center for Ocean Life shows that the implications of a recent Science paper by Barneche et al. (Science 360(6389): 642) are much less dramatic than...
10 JAN
Choanoflagellates are filter feeders and an important component of microbial foodwebs. Because they are theancestors of multicellular life, they have been intensely studied...
04 JAN
Can we apply economic principles to fish ecology and diel vertical migration? It appears that the way fish and zooplankton behave in the presence of other individuals can...
20 DEC
After a wonderful annual retreat and Christmas party, it is now time to wish everyone a lovely Christmas and for most, safe travels to their home country.
18 DEC
Do zooplankton traits matter? Scaling up trade-offs to the global scale. Taxa-transcending traits and trade-offs have been shown through lab experiments and literature...
14 DEC
Centre's annual retreat took place in Hohenwarte 10-13 December to summarize the scientific success of 2018 and discuss future directions.
22 NOV
When we look at nutrient poor (oligotrophic) and nutrient rich (eutrophic) ecosystem, we generally observe different species. We can therefore conclude that these ecosystems...
05 SEP
Postdoctoral fellowship opportunity on modelling of marine nitrogen fixation.
24 AUG
Copepods avoid eating most toxic dinoflagellates and thus the toxin efficiently protects the algae against grazing
15 AUG
Is toxin production in phytoplankton costly? How do environmental conditions affect the cost of toxin production?
13 AUG
Marine ecosystems are overwhelmingly complex. The trait-based method offers a simple way to describe, model, and understand complex marine systems. In a new paper we...
06 AUG
What zooplankton foraging strategy is more efficient in terms of volume of water cleared? What mechanism determines clearance efficiency of zooplankton foraging strategies...
01 MAY
After oil spills and dispersant applications, the formation of red tides or harmful algal blooms (HABs) has been observed, but the link between both phenomena was unknown...
21 MAR
A new Ocean Life paper demonstrates a global mismatch in the protection of multiple marine biodiversity components and ecosystem services.
21 MAR
Diatoms change chain-formation and up-or downregulate thousands of genes when smelling copepod grazers
21 MAR
Can sexual dimorphism lead to differences in starvation tolerance between copepod genders? Can mating activities reduce starvation tolerance in planktonic copepods?
24 JAN
Some copepods, mm-sized zooplankton, that live in the very surface layer of the ocean jump out of the water and perform spectacular flights when escaping from predators...
24 JAN
New review experimentally exploring plankton defense mechanism
22 JAN
Density dependence is the major driving force behind population regulation. Here we looked at density-dependent growth in real-life fish stocks, and how this relates...
17 JAN
Many species of phytoplankton produce substances that are toxic to both human consumers and planktonic grazers, and toxin production is often considered a defense mechanism...
08 JAN
Centre for Ocean Life offers 3-year PhD fellowships in experimental plankton ecology and trait-based modelling within the general topic of trait-based Marine Ecology. The...
05 JAN
Biodiversity is a multifaceted concept, yet most biodiversity studies have taken a taxonomic approach, implying that all species are equally important. However, species...
21 DEC
Centre's annual retreat took place 13-14/12 in Faxe to summarize the scientific success of 2017.
04 DEC
To understand the effects of climate change on changing ocean biomass, understanding how different species interact is a difficult but necessary task.
28 NOV
Why do we find primarily large pelagic predators such as tunas and billfish in the tropics, while in boreal and temperate regions large demersal species of gadoids and...
17 NOV
Life-history traits of comb jellies (Mnemiopsis) invaded to European waters start reproducing at a body mass 100 times less than in mother populations. This is consistent...
13 NOV
We welcome a new postdoc at the Centre for Ocean life!
17 OCT
We welcome two new PhD students at the Centre for Ocean life!
25 AUG
Our application to the Villum Foundation for the extension of the Centre for Ocean Life has been granted. This is great news as it will allow us to continue the high level...
17 AUG
Why search for food if there is little or nothing of it? And why spend a lot of effort foraging if there is plenty of it, particularly since foraging implies elevated...
15 AUG
What physical constraints govern microbial filter feeding, and what can we derive about the microbial filter feeder as a trait?
26 JUL
We welcome a new PhD student and Postdoc at the Centre for Ocean life!
27 JUN
Copepods have developed two distinct behavioral strategies that have different costs and benefits when it comes to feeding, mating and avoiding predators. A new PhD thesis...
27 JUN
Can differences in behavior between genders lead to reduced male feeding rates?
05 APR
What are the spatial patterns of fish life history strategies in the European Seas and what are their main drivers?
03 APR
Differences in motile behavior related to feeding and mate finding lead up to almost an order of magnitude difference in mortality risk?
23 MAR
We have developed a trait-based model to describe how the size of organisms and the environmental conditions interact to determine trophic strategies of unicellular plankton...
23 MAR
How are the bottom substrate and water column habitats linked? How does this coupling affect the functioning of the ecosystem and how sensitive is it to human pressures...
13 MAR
We present an analytical model framework with which we can predict near-cell flows and trajectories of freely swimming unicellular organisms that swim with different numbers...
06 MAR
A new Ocean Life paper shows that overwintering of the copepod Calanus hyperboreus contributes significantly to the sequestration of carbon. We propose a general method...
06 MAR
In a new paper we reveal how the seasonal succession within plankton communities can be characterized in terms of a few key traits that govern the shifting trophic arrangements...
14 FEB
We compiled data to understand the ecology of marine copepods based on their fundamental traits, such as body size or growth rate, rather than based on species names...
07 FEB
What is the cost in terms of predation risk of different feeding behaviours in zooplankton? What feeding strategies are more risky? Are copepod males more susceptible...
31 JAN
Imagine you are a microscopic cell with two thin “arms” and want to survive in the ocean. How should you arrange and move those appendages to swim fast and efficiently...
24 JAN
Last Friday (20st Jan 2017) Philipp defended his PhD thesis with the title “Plankton biogeography – an exploration of patterns, drivers, functions, and predictability”...
06 JAN
We have studied a model of a size structured Daphnia population feeding on an algae resource that have a periodically varying growth rate. Depending on parameter values...
03 JAN
5-year evaluation report of the Centre for Ocean Life available for download.
21 DEC
How do copepods react to toxic prey and what’s the effect on survival of both prey and predator?
28 NOV
- and how should we fish them if we knew? New paper from Ocean Life.
09 NOV
In a new study, environmental effects on the competition between fish and jellyfish are examined through a trait-based food web model.
24 OCT
A popular article discusses the findings of the recently published paper “Trait biogeography of marine copepods - an analysis across scales” by Brun, Payne and Kiørboe...
11 OCT
We have produced the first ever global maps of key traits of copepods, the dominant group of zooplankton, by combining geo-located observations of hundreds of taxa that...
05 OCT
Copepods leave chemical traces in the water in which they live. Some of these chemicals may be signals of conspecifics. Can we find the signal molecules among the thousands...
03 OCT
Coastal waters are among the most productive and biogeochemically active systems on Earth, and provide important ecosystem services in terms of biological productivity...
08 SEP
Microscopic aquatic organisms live in a non-intuitive ‘sticky’ world dominated by viscosity. The way that larger organisms swim does not function in this small-scale world...
03 SEP
We conducted a meta-analysis to investigate and compare responses of development time, cumulative degree-days and survival of fish eggs from 32 populations of 17 species...
31 AUG
New study from the Centre for Ocean Life shows the succession of three key resource-harvesting traits: photosynthesis, phagotrophy and inorganic nutrient uptake predicting...
28 AUG
In a new paper in Fish and Fisheries Ocean life researchers investigate the efficiency of fishing in large marine ecosystems in Europe, Africa and North America. They...
23 AUG
A new paper and a report from two ASLO sessions disuss the links between ecology and behavior of plankton and large scale oceanic processes, and how these links are important...
15 AUG
New study from the Centre for Ocean Life show how the huge differences in offspring size between sharks and bony fish can be explained by differences in early life density...
02 AUG
In a new Ocean Life paper, we show how allelochemicals released by toxic phytoplankton helps in the coexistence of more phytoplankton species than the number of limiting...
14 JUN
In a new Ocean Life paper, we examine life history traits of fish, and find a consistent empirical relationship between size at maturity, fecundity and spawning type...
01 JUN
This is the first evidence that organisms with stolen chloroplasts (kleptochloroplasts) can have significant control over the physiological state and ‘health’ of their...
23 MAY
The report on the workshop is now available online.
23 MAY
Sometimes we don´t have to look in the distance to discover ecological spectacles worth studying, communicating, and preserving.
11 MAY
The first global synthesis of copepod temperature-body size (T-S) responses in nature across seasons, published in Global Ecology and Biogeography.
21 APR
Ocean Life research on climate impacts on fish distributions has been quoted in the latest issue of Nature in a "News Feature" article about Greenland's future.
18 APR
We welcome a new PhD student at the Centre for Ocean life!
04 APR
We find the reliability of predictions of distributional shifts of plankton made by commonly used ‘species distribution models’ to be worse than is commonly appreciated...
04 APR
A new and simple method for scaling up individual movements to large-scale fluxes of organisms.
29 MAR
It remains a controversial issue how feeding-current feeding copepods perceive individual algal prey.
21 MAR
What are the patterns and drivers of the species richness and functional richness of fish communities in the Baltic Sea? A new paper explores the assembly rules controlling...
14 MAR
A new paper explores patterns of offspring size for life in the ocean, from micro- to macroscopic.
10 MAR
How do copepods use chemical signaling to communicate? The paper investigates the composition of metabolites exuded from live copepods.
10 MAR
How to and why measure functional diversity? Insights from a species poor Baltic Sea with a high functional richness.
15 FEB
A recent study shows how diatoms find the building material for their cells walls.
18 JAN
PhD student Agnethe N. Hansen has recently published a paper in Limnology and Oceanography on the optimal diel vertical migration of zooplankton and its consequences for...
14 JAN
Martin has been awarded a prestigious Young Investigator's Grant to support his ambitious and exciting new research ideas.
07 JAN
Centre's annual retreat took place 10-11/12 in Søminestationen (Holbæk) to summarize the scientific success of 2015. Annual report available for download.
30 DEC
Data compilation study investigates the temperature control on the sexual size dimorphism within 85 diverse arthropod species and reveals that, on average, the sexes...
02 DEC
Last Friday Nis Sand Jacobsen has successfully defended his PhD work investigating the ecosystem effects of fishing using size-based methods.
30 NOV
Massive amounts of organic carbon are floating around in the oceans. The carbon can persist for thousands of years, most likely because it is so dilute that the bacteria...
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