Dataset: HydroSwimParams_IndStats
Deployment: FHL_Sutherland

Behavioral metrics of swimming by hydromedusae in a turbulence generator.

Principal Investigator:

Kelly Rakow Sutherland (University of Oregon, OIMB)

Guest:

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

BCO-DMO Data Manager:

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

Project:

Influence of organism-scale turbulence on the predatory impacts of a suite of cnidarian medusae (jellyfish predation in turbulence)

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset-deployment/650011/data

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Description

Swimming behaviors of four species of cnidarian hydromedusae (Aequorea victoria, Mitrocoma cellularia, Stomotoca atra, Aglantha digitale) exposed to two flow conditions in a laboratory turbulence generator - still water and turbulent (ε ~10-7 m2 s-3).

Related Datasets:
HydroSwimParams_N
ANOVA means

Methods & Sampling

Dataset acquisition description

The x and z position of the most aboral point on the bell were digitized in ImageJ (NIH, Bethesda, Maryland, USA) at 1-s intervals to produce trajectories from a total of 82 individual hydromedusae from 34 tank trials. Resultant data don’t agree well with in situ measurements suggesting that there may have been tank artifacts.

Measured swimming parameters from each individual hydromedusa included depth in the tank, observed speed, acceleration, the net-to-gross displacement ratio (NGDR), time spent swimming and swimming direction.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:

- added conventional header with dataset name, PI name, version date
- renamed parameters to BCO-DMO and BODC standards

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1155084	NSF Division of Ocean Sciences

Instruments

Camera

Supplied Name:

Supplied Description:

Sony HDR-HC9 camcorder (1920 x 1080 pixels, 30 frames s-1; Sony Electronics Inc., Fort Myers, FL, USA) with a 16 x 9 cm field-of view.

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.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
species	hydromedusa genus	unitless	taxon
treatment	treatment: still or turbulent water	unitless	treatment
num_indiv	number of individuals	each	count
speed	speed of specimen	cm/sec	no_bcodmo_term
speed_sd	speed of specimen standard deviation	cm/sec	std_dev
speed_mean_max	maximum swimming speed	cm/sec	no_bcodmo_term
speed_max_sd	maximum swimming speed standard deviation	cm/sec	std_dev
accel	acceleration rate	cm/sec^2	no_bcodmo_term
accel_sd	acceleration rate	cm/sec^2	std_dev
depth_mean	depth in turbulence generator (maximum depth of turbulence generator = 30 cm)	cm	depth
depth_sd	standard deviation	cm	std_dev
NGDR_mean	mean net-to-gross displacement ratio	unitless	no_bcodmo_term
NGDR_mean_sd	mean net-to-gross displacement ratio standard deviation	unitless	std_dev
pcent_timeswim	percent time spent swimming faster than 0.2 cm/sec	unitless	no_bcodmo_term
pcent_timeswim_sd	percent time spent swimming	unitless	std_dev
dir_mean_degr	mean swimming direction	degrees	no_bcodmo_term
dir_mean_degr_sd	mean swimming direction	degrees	std_dev
Ua	average speed of plankton based on all instantaneous speeds	cm/sec	no_bcodmo_term
Ua_mean	Motility number: the ensemble average swim speed Ua divided by 2 component turbulence velocity q (Gallager 2004). q = 0.27	cm/sec	no_bcodmo_term

Database

Contribute Data

Dataset: HydroSwimParams_IndStats
Deployment: FHL_Sutherland

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: HydroSwimParams_IndStatsDeployment: FHL_Sutherland

Dataset acquisition description

Dataset Processing Description

Dataset: HydroSwimParams_IndStats
Deployment: FHL_Sutherland