245 search results for “fish” in the Public website
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New History of Fishes. A long-term approach to fishes in science and culture, 1550-1880
From 1550 onwards, a great interest in the natural world developed across Europe. This interest was not only stimulated by a growing knowledge of local flora and fauna, but also by the import of numerous exotic animal and plant species. Think, for instance, of researches and collectors like Gessner…
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Evolution and development of bitterling fish
How has early development in R. ocellatus been modified as a result of its parasitic embryonic lifestyle?
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Swimming Bass under Pounding Bass: fish response to sound exposure
Promotor: C.J. ten Cate, Co-promotor: H.W. Slabbekoorn
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Evolutionary Developmental Biology of Bitterling Fish
We developed the bitterling as a unique, well-studied model organism in the area of the evolutionary ecology of brood parasitism. The bitterling-mussel relationship, interspecific mussel host preference, and mussel gill structure are studied in detail, to help understand the developmental adaptation…
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Clock disruption in diurnal versus nocturnal migrating fish
Does Artifical Light at Night (ALAN) disrupt seasonal physiological and behavioral patterns in migrating freshwater fish?
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Assessing global regionalized impacts of eutrophication on freshwater fish biodiversity
Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.
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Solutions for Underwater Radiated Noise – Sound impact on migratory fishes
Do natural soundscapes affect migratory decisions of fishes moving up and down rivers and is this process disturbed by vessel sounds?
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Enlightened Fish Books: A New History of Eighteenth-Century Ichthyology (1686-1828)
How did learned natural historical inquiries into the underwater world develop in eighteenth-century Europe?
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A PCAD-model for fish to study the impact of airgun sound exposure on free-ranging cod
We are developing the conceptual framework, which is new to this taxonomic group, and evaluate the current state of the art with respect to all critical parameters and transfer functions for a fully developed Population Consequences of Acoustic Disturbance (PCAD) model.
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APELAFICO: Acoustic ecology of PELAgic FIsh COmmunities: A study into the effects of construction and operation of wind farms
Do offshore windfarms affect the local biodiversity of the pelagic fish community and are fish deterred or attracted by sounds?
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Captured on paper: fish books, natural history and questions of demarcation in eighteenth-century Europe (ca. 1680–1820)
On the28th of September Didi van Trijp successfully defended a doctoral thesis and graduated.
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Start project A New History of Fishes
The NWO just announced the results of the Vrije Competitie proposals. Paul Smith, professor at the French department is, as a member of LUCAS, one of three scholars within the Faculty of Humanities at Leiden University who has been awarded this grant.
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Using DNA to look for fish species
Researchers from Biomon have used DNA-techniques to find 40 different species of fish in the river Dommel. This technique is capable of detecting more species than conventional methods of measuring.
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Sound Investigation: Effects of noise on marine animals across trophic levels
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…
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NanoFeed
Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?
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Fishing for neutrinos in the Mediterranean Sea
Physicists, including Dorothea Samtleben from Leiden University, are building a giant underwater telescope to unravel the origin of neutrinos and to solve the mystery surrounding dark matter. The first detector has now been installed. Once it is finished, the telescope will be three cubic kilometres…
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Start of new sound impact project on fish
On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.
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A sustainable approach for the world's fish supply
China’s booming aquaculture industry is increasingly dependent on fishmeal made from wild-caught fish, a practice that depletes wild fish stocks. A new study conducted by institutions including Leiden University and Stanford offers a more sustainable path. The study appeared in the journal Science on…
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Habitats of freshwater fish species are threatened by global warming
The habitats of freshwater fish species are threatened by global warming, mainly due to rising water temperatures. This is the conclusion of a study led by Radboud University, in collaboration with Utrecht University, PBL Netherlands Environmental Assessment Agency, Leiden University and others. The…
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Studies on the Pathogenesis of Chronic Kidney Disease
In this thesis, two potential therapeutic targets for diabetic nephropathy were dentified and investigated. First, we show that glomerular clusterin is upregulated in diabetic nephropathy and demonstrated that recombinant clusterin protein can protect the podocytes against oxidative stress in vitro.…
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Sustainable fishing in one of Malawi’s biggest wetlands
The Elephant Marsh is one of the biggest wetlands in Malawi and many of the country’s inhabitants rely on it for their small-scale fishing catch. To make their small fisheries sustainable and future-proof, the government has to support the fishing community and not impose too many regulations. This…
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President Annetje Ottow helps fish plastic out of the canal
Every Sunday you can help fish plastic and other floating garbage out of the Leiden canals. You can use your own canoe or loan one from Plastic Spotter and join the garbage-fishing fleet. Annetje Ottow, President of Leiden University, was one of the crew on Sunday 4 July.
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Fien Demuynck
Science
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Hans Slabbekoorn receives NWA grant to study fish around wind farms in the North Sea
The Dutch Research Council (NWO) awarded behavioural biologist Hans Slabbekoorn (Institute of Biology Leiden) a grant of 750,000 euros to study fish and sounds around wind farms in the North Sea.
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Winter School student Ginevra Montefusco produces a web doc on Bari’s fish market
Mingo, a 91-year-old fish lover from Bari, takes us with him into the physical, symbolic and cultural space of the market.
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MIGRADROME: new study on the impact of vessel sound pollution on fish behaviour
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.
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Photo of fish in Covid glove on shortlist for prestigious nature prize
With his photo of a fish trapped in a rubber glove, external PhD candidate Auke-Florian Hiemstra has made it to the shortlist for the People’s Choice Award in the prestigious Wildlife Photographer of the Year competition. The photo shows the impact of Covid litter on wildlife.
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Was the EU’s ban on electric fishing the right decision?
Last week, on 13 February 2019, the EU approved the ban on pulse trawling. This followed the vote for a ban by the European Parliament on 16 January 2018. Half of the 84 Dutch pulse trawling vessels must stop immediately; the other half will receive a transitional arrangement until July 2021. Outcomes…
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The Evolution of Fangs, Venom, and Mimicry Systems in Blenny Fishes
Venomous animals serve as models for a variety of mimicry types. Michael Richardson (IBL) and his international colleagues find that a group of fishes (called fangblennies) evolved venom after the origin of their venom-delivering fangs.
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Identification of novel targets in prostate cancer progression
Promotor: Prof.dr. B. van de Water, Co-promotor: E.H.J. Danen
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Towards a mechanistic understanding of nanoparticle behavior using zebrafish
The work described in this dissertation contributes to a better mechanistic understanding of nanoparticles in vivo. To achieve that goal, we used the zebrafish as a highly predictive pre-screening model of nanoparticles.
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Dani Crowley
Science
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Fisheries in the Waza Logone Floodplain. An Analysis of the Status of the Fisheries Sector and Mitigation of Conflicts within the Sector in North
Promotores: Prof.dr. G.A. Persoon & Prof. dr. H.H. de Iongh
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Zebrafish personality, stress physiology and behaviour in the context of sound exposure
To what extent is sound a stressor to fish? And are behavioural and physiological phenotypes equally sensitive to disturbance by noise pollution?
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Heloysa Araújo Silva
Science
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Jeroen Hubert
Science
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II of the collaborative “PCAD4Cod”-project on the effect of sound on fish populations.
The first of April was the official start of Phase II of the collaborative “PCAD4Cod”-project on the effect of sound on fish populations. Hans Slabbekoorn, associate professor at the IBL, is the principal investigator and collaborates with three PhD-students, Dr. Erwin Winter, (Wageningen Marine Research),…
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Tradition and Innovation: Conrad Gessner and Sixteenth-Century Ichthyology (1551-1602)
This PhD subproject concentrates on 16th-century ichthyology and takes Gessner’s Historia piscium (1558) (further HP) as its point of departure and focus.
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The noisy underwater world: the effect of sound on behaviour of captive zebrafish
Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn
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When, how and why do people cooperate/coordinate?
In my research, I focus on cooperation, social dilemmas, tacit coordination, uncertainty, sanctions and trust.
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The plentiful river
Ichthyoarchaeological and biomolecular research to assess the trophic ecology of the Rhine-Meuse delta in the Holocene
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Laboratory animal facilities
We have facilities for various research animals, all of which naturally comply with legal requirements. We take great care of the animals, and our enclosures are designed to meet the specific needs of the different species.
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Alternatives to animal experiments: Replacement, Reduction and Refinement
We aim to conduct as few animal experiments as possible. We are continually exploring methods to Replace, Reduce, and Refine animal experiments, commonly referred to as the three Rs. Additionally, we assess each study to ensure the implementation of the 3Rs has been maximised. The Animal Welfare Body…
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Functions of leptin in tuberculosis and diabetes: multi-omics studies across species
In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.
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Vertebrate automated screening technology (VAST)
How can you use robots and automatic recognition of microscopic images to test the effect of drugs exceptionally quickly?
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Hans Slabbekoorn
Science
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Healthy food, healthy world
What does it mean to eat healthily and responsibly? This question is gaining a new urgency now that in many countries undernourishment is being overtaken by diseases of affluence, such as obesity, and we are also becoming more aware of the environmental impact of our eating habits. It’s time to take…
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Management of small-scale -African fisheries: The Case of Elephant Marsh in Malawi
How does the management of Elephant Marsh Fishery in Malawi relate to wider contexts of policies, theories and regions? And how can the current management system be adapted to achieve long-term sustainability of the fishery?
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What to focus on for a clean environment?
The earth has more than 7 billion inhabitants, all of whom leave behind traces of pollution. However, not all forms of pollution have the same harmful effect. Leiden scientists help determine where we should put our priorities.
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IDREEM - Increasing industrial resource efficiency in European mariculture
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?