@article {333,
	title = {Nahrung und Fressverhalten bei Sedimentfressern dargestellt am Beispiel von Sipunculiden und Holothurien},
	journal = {Helgolander Wissenschaftliche Meeresuntersuchungen},
	volume = {31},
	year = {1978},
	note = {@ USING MICROBOMB CALORIMETER ENERGY VALUES OF {\textquoteright}INFAUNA-SUBSTRATE-FEEDERS{\textquoteright} S.NUDUS \& G.VULGARE (HAS PHASCOLOSOMA) \& NUTRITIVE VALUE OF THEIR FOOD SUBSTRATE WERE DETERMINED. CALORIFIC MEASUREMENTS WERE MADE OF TOTAL FOOD SUBSTRATE, OF MEIOFAUNA ORGANISMS LIVING IN IT, AND OF FECAL PELLETS FROM OTHER INVERTS THAT ARE AN IMPORTANT PART IN THE FOOD SUPPLY. ANALYSED GUT CONTENT \& FECAL PELLETS OF SIPS \& COMPARERD TO SEDIMENTS. SEDIMENT HAD ASH CONTENT OF 97\% \& ENERGY CONTENT OF 0.14 CAL/MG DRY WT. EQUAL TO 165 KCAL/M2. MEIOFAUNA BIOMASS OF 800 MG. NUMBERS ON A FEW MEIOF TAXA.. THE SIP FOOD SOURCE; M2 OF SURFACE SEDIM, =3.78 KCAL, OR 2.3\% OF TOTAL FOOD. LARGEST PART FROM FECAL PELLETS W 0.6 CAL/MG OR 150 KCAL/M2; = 92\% OF CAL IN SUBST. PERITROPHIC MEMBRANES \& ATTACHED MICROORGANISMS MAY BE RESPONSIBLE FOR THIS SPECTACULARLY HIGH VALUE. COPROPHAGY IMPORTANT... REST FROM DETRITUS \& PROTOZOANS = 6\%. UPTAKE SELECTIVE WITH REGARD TO SMALL GRAIN SIZE. MEIOFAUNA IN GUT 80 TIMES SMALLER THAN IN SURROUNDINGS \& ENERGY CONTENT IN ANT. GUT 10 TIME HIGHER. ENERGY LOSS FROM ANT TO MID GUT = 70\% \& FROM MID > POST GUT LOSS IS 19\%. CAL. IN FECES TOO SMALL TO MEASURE; MEIOFAUNA NOT SIGNIF PRT. BUT IS EATEN.},
	pages = {191-221},
	keywords = {coprophagy, diet, g. vulgare, s. nudus},
	author = {Hansen, M. D.}
}
