How efficiently can doliolids (Tunicata, Thaliacea) utilize phytoplankton and their own fecal pellets?

How efficiently can doliolids (Tunicata, Thaliacea) utilize phytoplankton and their own fecal... AbstractThe quantitative utilization of detritus as food for zooplankton has been often addressed. Yet studies on the topic are lacking. Thus, the goal of our study was to determine the food absorption efficiency (AE) of the doliolid Dolioletta gegenbauri being first offered phytoplankton and then, subsequently, fecal pellets as a representative of detritus. The AE feeding on phytoplankton was 38.7%, and subsequently, on their own fecal pellets 22.7%. The comparatively low value of 38.7% is due to the doliolids’ inability to mechanically destroy the ingested microalgal cells. Part of the remaining nutritious contents of the cells constituting the fecal pellets are then removed when those pellets (first-generation pellets) are ingested by doliolids. After removing 22.7% of the remaining cell contents, considerable amounts of carbon and nitrogen should even remain in the second-generation pellets for subsequent zooplankton consumers. In conclusion the frequent occurrence of doliolid pellets could contribute significantly to the probability of zooplankton survival when phytoplankton abundance is low. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Plankton Research Oxford University Press

How efficiently can doliolids (Tunicata, Thaliacea) utilize phytoplankton and their own fecal pellets?

Loading next page...
 
/lp/ou_press/how-efficiently-can-doliolids-tunicata-thaliacea-utilize-phytoplankton-07ipAEGI4J
Publisher
Oxford University Press
Copyright
© The Author 2016. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com
ISSN
0142-7873
eISSN
1464-3774
D.O.I.
10.1093/plankt/fbw089
Publisher site
See Article on Publisher Site

Abstract

AbstractThe quantitative utilization of detritus as food for zooplankton has been often addressed. Yet studies on the topic are lacking. Thus, the goal of our study was to determine the food absorption efficiency (AE) of the doliolid Dolioletta gegenbauri being first offered phytoplankton and then, subsequently, fecal pellets as a representative of detritus. The AE feeding on phytoplankton was 38.7%, and subsequently, on their own fecal pellets 22.7%. The comparatively low value of 38.7% is due to the doliolids’ inability to mechanically destroy the ingested microalgal cells. Part of the remaining nutritious contents of the cells constituting the fecal pellets are then removed when those pellets (first-generation pellets) are ingested by doliolids. After removing 22.7% of the remaining cell contents, considerable amounts of carbon and nitrogen should even remain in the second-generation pellets for subsequent zooplankton consumers. In conclusion the frequent occurrence of doliolid pellets could contribute significantly to the probability of zooplankton survival when phytoplankton abundance is low.

Journal

Journal of Plankton ResearchOxford University Press

Published: Mar 1, 2017

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off