期刊
JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS
卷 5, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.2971/jeos.2010.10017s
关键词
zooplankton; imaging; image analysis; lightframe on-sight keyspecies investigation (LOKI); small scale distribution
类别
资金
- Bremerhavener Gesellschaft fur Investitionsforderung und Stadtentwicklung mbH [BIS 56008/2-Z, BIS 68036/2-Z]
- European Community
- ERDF (European Regional Development Fund)
Zooplankton is a key element in aquatic food webs. Rapid mapping of abundance, combined with information on taxonomic and size composition is necessary to understand ecosystem dynamics. Classical sampling with towed plankton nets does not allow resolving fine scale distributions along hydrographic gradients (e. g. fronts and clines) although such structures determine community assemblages and trophic interactions. Furthermore, sample analysis is labor intensive and time consuming. To overcome these shortcomings, Lightframe On-sight Keyspecies Investigation (LOKI), a new imaging device, was developed for sensing spatial variability of plankton distribution on scales below the 1 m level. Here, we give a brief description of the LOKI system and demonstrate its potential for taxonomic identification using images of various zooplankton taxa collected in the south east Pacific. [DOI: 10.2971/jeos.2010.10017s]
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