Date (Publication)

1978

Code

https://doi.org/10.48689/76ab3125-0724-4638-b049-f0e95fb9d6af

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
DFO	Colin Levings		Principal investigator
	R.S.S. Wu		Principal investigator

Presentation form

Digital document

Other citation details

878 kb

Purpose

Barnacles are one of the universal species on the rocky shore in temperate waters. With such a large number and biomass, the barnacles may channel a large amount of energy from the pelagic environment into the littoral community and play an important role in the food web dynamics of littoral systems. The present study investigated the energy budget of Balanus glandula during the first year after settlement.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
DFO	Colin Levings		Point of contact

Maintenance and update frequency

Not planned

Global Change Master Directory (GCMD) Science Keywords v15.9

• Earth Science > Biological Classification > Animals/Invertebrates > Arthropods > Crustaceans > Barnacles

DFO Areas

• North Pacific Ocean

Language

English

Character set

UTF8

Topic category

• Biota

Begin

1975-03

End

1976-08

Supplemental Information

An annual energy budget was constructed for individual adult barnacles (Balanus glandula Darwin) for the first year after settlement. The production of body tissue, egg, shell, aquatic and aerial respiration, molting and faecal production was determined and consumption was derived from the summation of these budget items. To provide an estimation of the accuracy of the budget equation, energy budgets were constructed for three small groups of barnacles (n = 40) kept under laboratory conditions, in which the budget items, including consumption, were determined independently. The results of the laboratory energy budgets indicated that consumption

values derived from the summation methods for the three groups of barnacles were 7.4% higher and 16.2 and 15.6% lower than those determined by actual feeding experiments. The average consumption, assimilation and production of individual barnacles were estimated to be 699.5, 647.3 and 159.6 cal year-I, respectively. B. glandula has exceptionally high assimilation efficiency (92.5% from the annual budget and 99.3% from the laboratory budgets) but a low gross production efficiency (22.8%) and net production efficiency (24.7%). A very large proportion of energy (67.4%) was lost in respiration. The second most important budget item was egg production (12.3%); followed in decreasing order by: shell production (6.6%)>

Production of body tissue (3.9%)>molting (2.3%).

Distribution format

Name	Version
electronic	none

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Isobel Pearsall	pearsalli@shaw.ca	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://www.dfo-mpo.gc.ca/science/data-donnees/index-eng.html	DFO Science website
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/76ab3125-0724-4638-b049-f0e95fb9d6af/attachments/76ab3125-0724-4638-b049-f0e95fb9d6af.pdf	An Energy Budget for Individual Barnacles (Balanus glandula)*
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/76ab3125-0724-4638-b049-f0e95fb9d6af/attachments/76ab3125-0724-4638-b049-f0e95fb9d6af.xlsx	Tables

OnLine resource

Protocol	Linkage	Name
DOI	https://doi.org/10.48689/76ab3125-0724-4638-b049-f0e95fb9d6af	Digital Object Identifier (DOI)

Hierarchy level

Dataset

Statement

Levings produced paper copy. Fraser scanned with Fujitsu Scansnap s1500 (ABBY Finereader OCR software). Data was extracted through Adobe Reader conversion and manual entry into MS Excel.

Metadata

File identifier

76ab3125-0724-4638-b049-f0e95fb9d6af XML

Metadata language

eng

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2023-12-19T00:24:35.675Z

Metadata standard name

North American Profile of ISO19115:2003 - Geographic information - Metadata

Metadata standard version

NAP - CAN/CGSB-171.100-2009

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Sarah Fraser	fraser.sarahk@gmail.com	Author

Other language

Language	Character encoding
French	UTF8
English	UTF8