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

Fig 8 data from Hodin et al (2015) Royal Soc. Open Sci. - sand dollar settlement and turbulence

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)

Project:

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

Current State:

Final no updates expected

Version Date:

2016-03-15

Data URL:

https://www.bco-dmo.org/dataset-deployment/640546/data

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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.

Methods & Sampling

Dataset acquisition description

Data Processing Description

Dataset 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)

More information about this dataset deployment

Funding

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

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

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

Database

Contribute Data

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

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

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

Dataset acquisition description

Dataset Processing Description

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