Dataset: Turbulence settlement: fig.8 - Royal Soc. Open Sci. (2015)

Name: Experimental results on larvae primed by turbulence and the effect on settlement size from Bodega Marine Lab in 2014 (Turbulence-spurred settlement project)
Published: 2016-03-15
Keywords: biota, oceans

Cite This Dataset

Project:

Turbulence-spurred settlement: Deciphering a newly recognized class of larval response (Turbulence-spurred settlement)

Principal Investigator:

Brian Gaylord (University of California-Davis, UC Davis-BML)

Co-Principal Investigator:

Dr Matthew Ferner (San Francisco State University, SFSU)

Dr Christopher Lowe (Stanford University - Hopkins, Stanford-HMS)

Contact:

Dr Matthew Ferner (San Francisco State University, SFSU)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

2016-03-15

Version Date:

2016-03-15

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Experimental results on larvae primed by turbulence and the effect on settlement size from Bodega Marine Lab in 2014 (Turbulence-spurred settlement project)

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Description

Figure 8. Precompetent larvae primed by turbulence exposure settle at a smaller size. (a) Mean test area in 12-day-old juveniles (n=49) deriving from turbulence exposure (approx. 2 W kg−1 for 3 min) while precompetent, compared to 15-day-old competent juveniles (n =29) never exposed to turbulence. Shown are standard Tukey box plots with the dots as outliers. Representative 12-day-old turbulence-exposed juvenile (b) and 15-day-old control juvenile (c) from this experiment, photographed at the same magnification.
White dotted lines indicate the major and minor axes of the ellipses used to estimate cross-sectional test area. Note also the relatively shorter spines in (b), another indication of the precocious state of these turbulence-induced juveniles. Scale bars, 100μm. The effect size here (mean size on day 15−mean size on day 12) is 19 437 μm2.

See Hodin et al (2015) for full details.

Related Reference:
Hodin J, Ferner MC, Ng G, Lowe CJ, Gaylord B. 2015. Rethinking competence in marine life cycles: ontogenetic changes in the settlement response of sand dollar larvae exposed to turbulence. Royal Society Open Science. 2: 150114. doi: 10.1098/rsos.150114.

Data Processing Description

BCO-DMO Processing:

- added conventional header with dataset name, PI name, version date, reference information
- renamed parameters to BCO-DMO standard
- replaced blank cells and hyphen with NA (not applicable) or nd (no data)

Data Files

File
fig8a.csv (Comma Separated Values (.csv), 6.56 KB) MD5:dbb9b5cf2e1666845c43de67e5a6e943 Primary data file for dataset ID 640538

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1356966
NSF Division of Ocean Sciences	OCE-1357033
NSF Division of Ocean Sciences	OCE-1357077

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Gaylord_Turb-Settlement		2014-06-01	lab Bodega Marine Laboratory		data info

Instruments

Camera

Supplied Name:

Supplied Description:

Leica (Solms, Germany) MC170 HD camera mounted on a Leica M125 dissecting microscope and a Leica DM1000 compound microscope

Instrument Type

Generic Name: Camera

Acronym: camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/311/

Generic Description:

All types of photographic equipment including stills, video, film and digital systems.

Taylor-Couette system

Supplied Name:

Supplied Description:

To generate turbulence intensities (quantified in terms of the energy dissipation rate, in units of Wkg−1) ranging from those found in open ocean waters to those arising on wave-battered coasts, we employed a Taylor–Couette cell [29], an apparatus composed of two vertically oriented, coaxial cylinders separated by a 3.5mm gap that contains seawater (described in greater detail in [1]). We held the stationary inner cylinder, and thus the water in the gap, at 19–21◦C by means of a circulating water stream from a temperature-controlled water bath passing through the cylinder’s interior. During operation, the outer cylinder rotated at a prescribed speed causing relative motion between the cylinders and thereby shearing the seawater between them. At rotation speeds employed for testing sand dollar larvae, the sheared flow was turbulent [1].

[1]Gaylord B, Hodin J, Ferner MC. 2013 Turbulent shear spurs settlement in larval sea urchins. Proc. Natl Acad. Sci. USA 110, 6901–6906. (doi:10.1073/pnas.
1220680110)

Instrument Type

Generic Name: Taylor-Couette system

Generic Description:

An apparatus composed of two vertically oriented, coaxial cylinders separated by a gap that contains seawater. During operation, the outer cylinder rotates at a prescribed speed causing relative motion between the cylinders and thereby shearing the seawater between them.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
set	description of image: ruler; micrometer; 11-day juvenile with turbulence; 14-day juvenile with no turbulence	unitless	brief_desc
num_juv_tmt	identification number of juvenile in treatment	unitless	sample
len1_um	length 1 of juvenile test	micrometers	length
len2_um	length 2 of juvenile test	micrometers	length
pixels1	number of pixels for length 1	pixels	length
pixels2	number of pixels for length 2	pixels	length
len1_mm_long	length 1 * 1000 (long format)	millimeters	length
len2_mm_long	length 2 * 1000 (long format)	millimeters	length
len1_mm_rnd	rounded length 1	millimeters	length
len2_mm_rnd	rounded length 2	millimeters	length
area	area of juvenile test	microns^2	no_bcodmo_term
um_per_pixel	area of juvenile test in pixels: (len1 /2)(len2 /2)PI	pixels	no_bcodmo_term
comment	comment	unitless	comment

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Database

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Dataset: Turbulence settlement: fig.8 - Royal Soc. Open Sci. (2015)