Date (Publication)

2007

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
DFO	Colin Levings		Principal investigator
Keystone Environmental Ltd.	C.G. Lee		Principal investigator
Northwest Scientific Association			Publisher

Presentation form

Digital document

Other citation details

Northwest Science, 81(2):166-171. 2007 DOI: http://dx.doi.org/10.3955/0029-344X-81.2.166 URL: http://www.bioone.org/doi/full/10.3955/0029-344X-81.2.166 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses.

Purpose

Using both field and laboratory approaches, our preliminary study addressed the following questions: (1) how will temperature and desiccation affect surf smelt embryo development and survival

and (2) is there a mean threshold relative humidity (RH) necessary to facilitate successful hatching? We present a small data set on these topics which

may to useful to guide further work.

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

Government of Canada Core Subject Thesaurus

• Development

• Obesity

• Temperature

DFO Areas

• North Pacific Ocean > Fraser River and BC Interior

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

DFO Areas

• North Pacific Ocean > Fraser River and BC Interior

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

Use limitation

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Language

English

Character set

UTF8

Topic category

• Oceans

Environment description

10 KB

Description

seven beaches in outer Vancouver Harbor, B.C., on 10 occasions between 8 May and 5 July 2002. One site outside the harbor, Furry Creek, on Howe Sound, a fjord adjacent to the harbor, was also sampled

Begin

2002-05

End

2003-06

Supplemental Information

Between May and July 2002, we conducted a field study to investigate possible environmental factors influencing surf smelt (Hypomesus pretiosus) egg mortality at eight beaches on the southern Strait of Georgia, British Columbia (B.C.), Canada. Egg mortality was variable, but was positively correlated to air temperature and increased in June and July when maximum temperature was approximately 30°C. In June 2003, we conducted a preliminary laboratory study to investigate the effects of desiccation on surf smelt egg mortality. Eggs were randomly placed into four relative humidity (RH) groups: dry (62% RH), moist (80% RH), wet (93% RH) and submerged (100% RH). All eggs in the dry and moist group died by the end of the experiment. Mortality of eggs in the wet and submerged groups was not significantly different (P<0.05). Eggs in the wet group reached the eyed stage and hatched significantly faster (P<0.05) than those in the submerged group. Results suggested a threshold RH requirement of 80 – 93% for successful development and hatching of surf smelt embryos. Moisture and temperature interact to condition RH in the intertidal zone. Shade vegetation, which can cool air temperature in the supralittoral zone, may be important for some populations of surf smelt. Further investigations are required to confirm the findings.

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/a11990fd-9d94-41b4-910d-16731c373a88/attachments/a11990fd-9d94-41b4-910d-16731c373a88.pdf	a11990fd-9d94-41b4-910d-16731c373a88.pdf
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/a11990fd-9d94-41b4-910d-16731c373a88/attachments/a11990fd-9d94-41b4-910d-16731c373a88.xlsx	a11990fd-9d94-41b4-910d-16731c373a88.xlsx
WWW:LINK-1.0-http--link	https://doi.org/10.48689/52z1-c355	Digital Object Identifier

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

a11990fd-9d94-41b4-910d-16731c373a88 XML

Metadata language

eng

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2023-12-18T21:37:28.874Z

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