A study of oxygen consumption in Colanus plumchrus Marukawa 1921 and implications on vertical migration
department or school: Science, Faculty of
department or school: Zoology, Department of
data provider: DSpace
degree campus: UBCV
creator: Topping, Milton Stanlee
issued: 2011-09-19T17:34:04Z
issued: 1966
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: Oxygen consumption of the copepodid V stages of Calanas plumchras was studied with respect to environmental and endogenous factors using standard closed chamber technique and Warburg respirometry. Specimens were collected from San Juan Channel, Washington and Indian Arm, British Columbia. Rate of oxygen consumption of C, plumchrus (1) is significantly decreased by population densities of 5 or more copepods / ml, (2) demonstrates no regular endogenous change, (3) is not significantly affected by presence or absence of light, (4) is directly proportional to temperature (being variously linear and non-linear in response) throughout the range of 5-20° C, (5) does not vary significantly over a salinity range of 20-35 ppt (but during May 1965 increased at 10 ppt and decreased at 45 ppt), (6) decreases to a minimum below an ambient oxygen concentration of 3 co 0₂ per liter and (7) is not significantly affected by increased hydrostatic pressure corresponding to a depth of about 400 m. Response to a range of temperatures, in particular, indicates that oxygen measurements taken from different collections are statistically different and therefore not directly comparable. In general, the data presented are consistent with McLaren's theory of energy utilization and vertical migration, although temperature does not always appear to be the most significant factor. Interaction and variation of environmental factors may explain some of the complexity of vertical migration.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/37453
note: A STUDY OF OXYGEN OOHSUMPTIOH IH Oalanas p l a m e h r a B MAEUZAWA 1921 AND IMPLICATIONS OK VERTICAL MIGHATION MILTON STANLEE TOPPING B.A., Unive r s i t y of Kansas, 1962 A Thesis submitted i n P a r t i a l Fulfilment of the Requirements f o r the Degree of Master of Science i n the Department of Zoology We accept t h i s thesis as conforming to the required, standard The Un i v e r s i t y o f B r i t i s h Columbia A p r i l , 1966 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make i t freely available for reference and study. I further agree that per-mission for extensive copying of this thesis for scholarly purposes may be granted by the Head of my Department or by his representativeso It is understood that copying or publi-cation of this thesis for financial gain shall not be allowed without my written permission. Department of ~/cZ 6± The University of British Columbia,. Vancouver 8, Canada. Date Q.& ADAJJ I q&G, i i Abstract Oxygen consumption of the eopepodid Y stages of Oalanas plumohras was studied with respect to environmental and endogenous factors using standard closed chamber technique and Warburg respirometry. Specimens were collected from San Juan Channel, Washington and Indian Arm, B r i t i s h Columbia. Rate of oxygen consumption of C, plumchrus (1) i s sig-nificantly decreased by population densities of 5 or more copepods / ml, (2) demonstrates no regular endogenous change, (3) i s not significantly affected by presence or absence of light, (4) i s directly proportional to temperature (being variously linear and non-linear in response) throughout the range of 5^20° 0, (5) does not vary significantly over a sal i n i t y range of 20-35 ppt (but during May 1965 increased at 10 ppt and deoreased at 45 ppt), (6) decreases to a minimum below an ambient oxygen concentration of 3 co 0% per l i t e r and (7) i s not significantly affected…
has type: Thesis/Dissertation
is shown at: 10.14288/1.0302523
language: eng
degree discipline: Zoology
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/37453