Graduate Thesis Or Dissertation
 

Determination of food carbon assimilation in copepods

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/rr172140v

Descriptions

Attribute NameValues
Creator
Abstract
  • A method for measuring food carbon assimilation in the copepod Calanus finmarchicus was developed, using the diatom Ditylum brightwelli as food. The amount of particulate food carbon ingested was determined as the difference between CHN analyzer analyses for particulate food carbon of pre- and post-grazed food suspensions. The fraction of ingested food that was assimilated as organic matter was determined by a modified Conover gravimetric ratio method. This fraction was computed as: U=(F'-E')/(l-E')F' where F' and E' were the ash free dry weight:dry weight ratios of the copepods' food and feces, respectively. The fraction of ingested organic matter assimilated (U) multiplied by the amount of food carbon ingested estimated the amount of food carbon assimilated, assuming that the fraction of organic matter assimilated by the copepods was identical to the fraction of food carbon assimilated. Assimilation fraction determinations agreed well with those in the literature. The consistency in the carbon assimilation rates obtained apparently indicated a seasonal uniformity in absolute food carbon assimilated by adult Calanus.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details OConnorsHaroldBlaneJr1969.pdf 2017-08-15 Public Download