Which metabolites of sponge are influenced by individual environmental or biological factors?

What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

To explore the potential of marine microorganisms as producers of novel antimicrobial agents and as bioprotectants in aqua- and agriculture, using an integrative, ecology-based strategy for bioprospecting.

The effects of anthropogenic noise on interactions between predators and their prey are still little understood.

Human activity at sea makes a terrible racket. To what extent does this disturb marine animals? PhD candidate Annebelle Kok studied the effect on harbour porpoises, long-finned pilot whales and their prey, and discovered the sheer complexity of the problem. PhD defence on 12 November.

Do natural soundscapes affect migratory decisions of fishes moving up and down rivers and is this process disturbed by vessel sounds?

Do offshore windfarms affect the local biodiversity of the pelagic fish community and are fish deterred or attracted by sounds?

Explaining your PhD research to others can be quite difficult, especially without talking! PhD student Annebelle Kok of the Institute of Biology Leiden was one of the finalists of the 'Dance Your PhD' competition of scientific journal Science. ‘You have to understand your own research well if you are…

As of 1 May 2018, Nicole de Voogd has been appointed as Professor by special appointment Global change and marine ecosystems at the Institute of Environmental Sciences (CML). She is currently senior researcher at Naturalis Biodiversity Center in the field of tropical marine ecosystems.

Last week Esther Kentin participated in the Second Meeting of the Ad Hoc Open-Ended Expert Group on Marine Litter and Microplastics organized by UN Environment in Geneva.

Last week Esther Kentin participated in the Second Meeting of the Ad Hoc Open-Ended Expert Group on Marine Litter and Microplastics organized by UN Environment in Geneva.

On the 15th of October, IMARES and IBL co-organized a symposium on underwater acoustics related to research on fish and marine mammals.

Promotores: Prof.dr. F. van Lunteren, Prof.dr. F.S. Gaastra

On Thursday 24th of April, Fleur Visser successfully defended her PhD-thesis on social and migratory behaviour of dolphins and whales in the Agnietenkapel at the University of Amsterdam (UVA).

Prof. Dr. Ir. Marin van Heel, Emeritus Professor at the Institute of Biology Leiden (NeCEN), is one of the winners of the “Wiley Prize in Biomedical Sciences 2017”. This annual award is presented to recognize contributions that have opened new fields of research or have advanced concepts in a particular…

Gilles van Wezel of the Institute of Biology Leiden will lead a European consortium to search for new medicines and disease-suppressive microbes while preserving biodiversity. The consortium will explore the largely unknown potential of marine microorganisms.

Fishes rely heavily on sound to find their way during migration or dispersal. Many species are affected by noise pollution. Hans Slabbekoorn from the Institute of Biology Leiden received a HORIZON2020 grant of 500,000 euros to study the impact of sound conditions on movement decisions of fishes.

In July 2021 the Leiden Empowerment Fonds (LEF) awarded a research grant of €13,500 for research into the history of maritime law in early modern times.

Wouter Halfwerk (IBL) received a Veni grant from the Netherlands Organization for Scientific Research for his research project on the influence of man-made noise on foraging birds.

Promotores: G. Persoon, R. Schefold

The overall aim of this project is to understand, on the molecular level, how the bacterium V. fischeri cells interacts with their squid host.

Inaugural Lecture

Two PhD defences on 9 June by behavioural biologist Errol Neo and underwater acousticianan Özkan Sertlek relate to measuring noise in the North Sea and the harm this noise can do to aquatic animals and their surroundings. Little is known about how harmful human noise can be to aquatic animals.

Scientists, including our faculty colleague Dr. Mike Field, studying an exceptionally well-preserved woolly rhinoceros have revealed details of what Britain's environment was like 42,000 years ago. The beast's remains were discovered in Staffordshire in 2002, buried alongside other preserved organisms…

The Laboratory for Archaeozoological Studies is an advanced laboratory with advanced Leica stereomicroscopes and measuring instruments and an extensive reference collection which is used for research e.g. the identification of fossil remains. The collection is also used for teaching students the anatomy…

Agata is a Public International Law Master’s student at Leiden University.

What are the environmental trade-offs for SMEs considering moving from monoculture aquaculture practice towards IMTA? What are the environmental trade-offs comparing IMTA species with their conventional monoculture alternatives?

The aim of the research project is to get insight in the biostratigraphical age and the palaeoecological setting of the Schöningen sites and hominin behavior and subsistence during the late Lower Palaeolithic.

Archaeozoology is the study of faunal remains that are recovered at archaeological sites.

Do you have any questions about the role of the University in Leiden2022?

Promotores: C. J. ten Cate; M. A. Ainslie. Co-promotor: W. Slabbekoorn

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

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Lecture, This Week's Discoveries

Natural resources often stretch across borders that separate modern nation states. This can create conflict and limit opportunities for regulated consumption of their goods and services, but also provide opportunities for joint multinational efforts that exceed single country capabilities.