Antarctic krill Euphausia superba - in situ high resolution image fecal string

click into image to enlarge

in situ image scanned with a prototype of the Optical Plankton Recorder 1981

a fecal string (often also called feacal string or fecal pellet) contains still a lot of energy. TANOUE & HARA 1986 estimated a content of organic carbon of 14.7 % (of dry weight) and total nitrogen 1.96 %.

antarktischer krill wal wale filtrierer plankton nekton antarktis suedpolar suedpol suedpolarmeer meer ocean biomasse groesste walnahrung krebs crustacea jacques yves cousteau gotthilf hempel jupp menke uwe kils kinder of the planet kids of the globe kinder university free education fishschool kinderbuch in situ imaging underwater camera unterwasser kamera optischer Plankton recorder opr kiel optics optical optisch optischer ecoscope unterwasser mikroskop microscope cyber microscope exkrement faekal faden sinkstoff