Otter in coastal areas - Carcasses

Jiska van Dijk

doi:10.15468/1hlmhr

Otter in coastal areas - Carcasses

Citation

van Dijk J, Vang R (2022). Otter in coastal areas - Carcasses. Version 1.64. Norwegian Institute for Nature Research. Occurrence dataset https://doi.org/10.15468/1hlmhr accessed via GBIF.org on 2022-08-18.

Description

Since 1971 private persons, authorities and companies can send in otter carcasses to NINA who since then has an extended database and sample collection (e.g. muscle tissue, liver, kidney, heart samples). We collaborate with Artsdatabanken and Naturdata AS for exchange of other observations on dead otters (e.g. traffic kills, permission issued and legally shot, in fishnets drowned) to get a reliable and holistic overview of changes in population demographic parameters and population distribution over the years. The data is used for calculations of the national otter density index, updating the Norwegian Nature Index (otter as indicator species for fresh water ecosystems and for coastal ecosystems) and used in reporting to the Bern convention.

Sampling Description

Study Extent

Norway

Sampling

Method steps

When carcasses or other otter remains reach NINA, NINA personnel take a variety of measures (e.g. sex, estimated age, weight, length, tooth layer identification of age, condition) and collect a number of tissue samples (e.g. muscle, liver, kidney, heart). We also collaborate with the national archive ‘Miljøprøvebanken’ and collect large samples of otter liver tissue for environmental toxicological analyses.

Additional info

For the latest overview and national otter density index: https://bibsys-almaprimo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=BRAGE11250%2F2729157&context=L&vid=NINA_DN⟨=no_NO&search_scope=default_scope&adaptor=Local Search Engine&tab=default_tab&query=creator,contains,Van Dijk,AND&query=creator,contains,May,AND&mode=advanced&offset=0 More data available at NINA. Contact resource creator

Taxonomic Coverages

Otter (Lutra lutra)

Lutra lutra
common name: Otter rank: species

Geographic Coverages

Norway

Bibliographic Citations

Contacts

Jiska van Dijk
originator
position: Researcher I
NINA
NO
email: jiska.van.dijk@nina.no

Roald Vang
metadata author
email: rv@nina.no

Roald Vang
user
email: rv@nina.no

Jiska van Dijk
administrative point of contact
position: Researcher I
NINA
NO
email: jiska.van.dijk@nina.no