Research

Funding: Nationalparkstiftung Schleswig-Holstein, 22.500 EUR

Project Details:
The native harbor seal population has been severely depleted in the past, but rebounded after the end of hunting in the 1970s. Two seal distemper epidemics in 1988 and 2002 and an influenza epidemic drastically reduced the seal population in the Wadden Sea within a very short time. However, the population recovered each time, so that currently there are an estimated 40800 living in the Wadden Sea of the Netherlands, Germany and Denmark.
Despite the high profile of this species, some aspects of harbor seal ecology, such as precise movement patterns and habitat use in the Wadden Sea National Park and adjacent waters, as well as information on feeding ecology, are poorly studied. The few studies available suggest that harbor seals do make extended hunting excursions into the open North Sea. However, the ecological relevance of these excursions and the detailed, spatiotemporal resolution of foraging activity are based on purely theoretical approaches. Furthermore, it is not clear which prey organisms and prey size the seals prefer on their hunting trips and whether they show specific hunting tactics depending on prey size.
Therefore, this project aims to fill gaps in our knowledge about where, how often and what exactly seals feed on in the German North Sea.
A problem in this context is that seals spend most of their lives in the water, where it is very difficult to observe their movements. In this context, telemetry - i.e., the tagging of animals with small electronic devices - is an important method to obtain knowledge about habitat use and behavior of the animals. However, in terms of determining foraging and food acquisition, telemetry has a large element of uncertainty. While sensors can provide high-resolution movement data (geographic position, dive depth, dive length, dive distance, acceleration), a characterization of foraging behavior is usually based on a subjective assessment of theoretical assumptions. A direct observation of the feeding behavior can only be achieved by a camera directly on the animal. In the present project, seals will therefore be equipped with a special underwater camera ("CATS-Cam"). In the future, the knowledge gained can also serve as a basis for the optimization of management concepts, as well as for further studies, for example to validate data from conventionally used telemetry devices. Furthermore, the recorded videos can be used for public relations and environmental education.

Results:

In the present project, two seals were caught and equipped with special underwater cameras ("CATS-Cam"). As expected, the cameras detached from the animals after a few days and the stored video files could be read out and analysed. A first analysis showed that the concept was suitable for the study purposes. A total of 495 videos (total length of 21.8 hours) were recorded.

Further investigations will be carried out in the future to optimise the method, so that more data can be recorded and movement patterns that could be identified from the existing videos can be used as a template for further identifications in the movement data. Also, problems such as poor lighting conditions caused by high concentrations of suspended matter in the water are to be avoided through modifications to the device.

In the future, the further development of this method should also serve as a basis for optimising management concepts, for example to validate data from conventionally used telemetry devices.

https://www.tiho-hannover.de/universitaet/aktuelles-veroeffentlichungen/pressemitteilungen/detail/seehunden-ueber-die-schulter-schauen

Funding: Industry (Feed manifacturing) , 22.000 EUR

Funding: Associations, 7.013 EUR

Funding: LUH, 30.000 EUR

Project Details:
An efficient, cost-effective test system will be established to test a large number of people as quickly as possible
(> 1,000/day). In three process steps i) Samples are taken in mobile test centers
(Throat swab according to the standard of the Robert Koch Institute), ii) processed (RNA isolation) and iii) evaluated by means of PCR analysis according to the Charité Berlin1 protocol. Positive results from the screening will be
diagnostically confirmed by certified laboratories and reported to the local health department. The mobile stations
are built on the basis of flexibly set up shipping containers and both for taking swabs
as well as the purification set up. In this way, a strict separation between the removal and
the processing of potentially infectious material in the mobile container and the subsequent analysis of the
non-infectious RNA samples secured in separate laboratories.

Funding: Niedersächsisches Ministerium für Wissenschaft und Kultur Volkswagenstiftung, 75.000 EUR

Project Details:
Various studies have already shown effects of chemicals from everyday products on the environment and health. The European Green Deal therefore aims to better assess the risks of hazardous chemicals and in particular very persistent chemicals in a timely manner. Pollution from persistent and mobile chemicals is closely linked to prevailing production and consumption patterns and is determined by the lack of appropriate technical options. These chemicals also challenge regulators to develop and enforce effective policies. The project aimed at increasing knowledge on health and environmental effects on aquatic and terrestrial wildlife. In addition to developing solutions for monitoring, a better understanding of the accumulation of these chemicals in the environment, in line with the EU call with the planned research project, should also help to proactively prevent negative impacts of persistent and mobile chemicals on humans and the environment.
The project serves to build and consolidate a project consortium to ensure the project application and a joint timely application in this EU funding programme. The involvement of many European countries in the project consortium should make it possible to write the project proposal with experienced scientists from the fields of toxicology and health and to submit it on time with an external professional office for EU project applications.

Results:

In the project, a project consortium was established to ensure a project proposal and a joint timely application in this EU funding program. The involvement of many European countries in the project consortium made it possible to write the project application with experienced scientists from the fields of toxicology and health and to submit it on time with an external professional office for EU project applications.

Funding: Landwirtschaftliche Rentenbank, 50.000 EUR

Project Details:
The projects`main question is if, why and how the welfare of farm animals is connected to the idea of sustainability and if animals`interests are playing a role in the present discussions on sustainability.

Results:

In current sustainability concepts, animals and animal welfare are only indirectly addressed in places, although this preliminary study has shown that their inclusion is socially desirable or even demanded. The extent to which the anthropocentric sustainability goals and the welfare of farm animals can be meaningfully linked will be the subject of a follow-up project.

Funding: Niedersächsisches Ministerium für Wissenschaft und Kultur, 116.300 EUR

Project Details:
Neozoa are alien or non-native animal species that have been directly or indirectly introduced into a new habitat by humans. Intentional and unintentional introductions pose a threat to biodiversity worldwide. One prominent example is the raccoon. This problem is well known and is taken into account in Germany, for example, in the Federal Nature Conservation Act and the National Biodiversity Strategy. However, it is often unclear how introduced animal species should be dealt with. Prevention is the top priority. The aim is to prevent new species from being introduced and spreading. However, depending on the species and the invasiveness assessment by the Federal Agency for Nature Conservation, animals are also removed and killed. This leads to a conflict between animal welfare, species protection and environmental protection. Although animal-related issues are usually discussed very emotionally, this problem has so far only been partially recognized by the public. For this reason, this area of conflict will be addressed during the project and discussed with various interest groups. The focus will be on two projects of the Institute for Terrestrial and Aquatic Wildlife Research of the University of Veterinary Medicine Hannover Foundation, which deal with the introduction of the nutria, originally from South America.

Results:

Gethöffer, F.; Kirberg, S.; Schöttes, F.; Siebert, U. Der Umgang mit Neozoen: ein gesellschaftlicher Diskurs. Naturschutz und Landschaftsplanung 2022, 54 (6), 30-36. https://doi.org/10.1399/NuL.2022.06.03.

https://doi.org/10.1399/NuL.2022.06.03

Funding: Niedersächsisches Ministerium für Wissenschaft und Kultur, 49.945 EUR

Project Details:
Modul 1: Online-Betreuungsmodul im Lernmanagementsystem Moodle
- Moderiertes Forum und online-Frage-Sprechstunden
- Studierende können Fallbeispiele aus ihrem Praktikum hochladen, die vom Betreuer geprüft und beantwortet, kommentiert und dann bei Eignung dem gesamten Kurs zur Verfügung gestellt werden
- Selbstlernangebot durch Bereitstellung von begleitenden Materialien (Skript, Gesetzestexte, Bildmaterial, Fallbeispiele, Anleitung zur Reflexion und Achtsamkeit und zu Resilienztraining)
Modul 2: Offline-Betreuungsmodul unter anderem vor Ort im Schlachthof
-Fokusgruppengespräch mit Studierenden (Bedarfsermittlung)
-Besuch der Studierenden in ihren Praktikumsstätten über einen Zeitraum von 8 Monaten (diverse Schlachthöfe)
-Leitfadengestützte Interviews mit Studierenden im Schlachthof (Situationen und Fragestellungen werden aufgearbeitet und dokumentiert)

Funding: Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, 113.000 EUR

Project Details:
Ziel des Projektes ist die Erlangung von Erkenntnissen,
- ob die Laichfischbestände in KHV Risikogebieten nachweislich latent mit KHV infiziert sind,
- ob die Infektion serologisch nachweisbar ist,
- wie das Virusgenom eingeordnet werden kann (ggf. Genomsequenzierung),
- ob bei infizierten Laichfischen das Virus auch in den Geschlechtsprodukten (Eier und Spermien) nachweisbar ist,
- inwieweit latent infizierte Laichkarpfen bzw. Laichkarpfen aus Seuchenbetrieben (Kat. V) das KHV über natürliche Laichverfahren an die Nachkommenschaft übertragen,
- inwieweit die Brut von latent infizierten Karpfen bzw. von Laichkarpfen aus Seuchenbetrieben (Kat. V) eine gesteigerte Resistenz für die Erkrankung aufweist bzw. eine Infektionsgefahr für nicht infizierte, Karpfenbestände darstellt

Cooperation Partners:

Sächsische Tierseuchenkasse, Fischgesundheitsdienst

Sächsisches Landesamt fü Umwelt, Landwirtschaft und Geologie, Referat Fischerei

Funding: Drittmittelprojekt, gefördert durch die Dr. Eberhard Lienhop Stiftung., 9.600 EUR

Project Details:
Within this project, silages are investigated as a potential source of Listeria monocytogenes entering the food chain. Different silages are collected and classified chemically and sensorically. Subsequently, the silages are analyzed for the occurrence of pathogenic and apathogenic Listeria spp. Additionally Listeria-specific bacteriophages are isolated. Aim of the study is the characterization of the matrix silage as well as testing the efficacy and stability of individual bacteriophages against Listeria field strains in vitro.

Results:

Publikationen:

1. Poster Abstract: Nievert L, Becker A, Kittler S, Plötz M, Visscher C Untersuchungen zur Silagequalität und -mikrobiologie in norddeutschen Rinderbetrieben.61. Arbeitstagung des Arbeitsgebietes Lebensmittelsicherheit und Verbraucherschutz 2021, Garmisch-Patenkirchen