Dataset: Pyrosomes - Cam

Name: Pyrosome (Pyrosoma atlanticum) counts from vertical video profiles in the Northern California Current acquired between February and July 2018.
Published: 2021-12-10
Keywords: Pyrosoma atlanticum, vertical distribution, California Current, video profile, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.866614.1

Spatial Extent: N:44.6532 E:-124.117 S:41.0575 W:-125.118

Temporal Extent: 2018-02-17 - 2018-07-12

Project:

Collaborative Research: Mesozooplankton food webs in intermittent upwelling systems: An overlooked link in a productive ocean (MEZCAL)

Principal Investigator:

Kelly Rakow Sutherland (University of Oregon)

Co-Principal Investigator:

Robert K. Cowen (Oregon State University, OSU-HMSC)

Su Sponaugle (Oregon State University, OSU)

Contact:

Joanna Lyle (University of Oregon, OIMB)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2021-12-10

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Pyrosome (Pyrosoma atlanticum) counts from vertical video profiles in the Northern California Current acquired between February and July 2018.

Abstract:

Pyrosome (Pyrosoma atlanticum) counts from vertical video profiles in the Northern California Current acquired between February and July 2018.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2021-12-10	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.866614.1	2022-08-11

Description

These data were published in Lyle, J.T. et al. 2021

Methods & Sampling

We mounted a GoPro Hero 4 (4K, 30fps) in a deep-water housing (GoDeep Aluminum, Sexton Inc.) and two 7500 lumen lights (BigBlue VL7500P) to the ship’s onboard CTD rosette frame. At each station, simultaneous CTD and camera deployments captured fine-scale (1 m), in situ counts of pyrosomes to 100 m, or 5 m above the bottom at shallower stations. Camera frames were subsequently analyzed to determine pyrosome distributions with depth. For each meter of depth, we extracted a still frame from the camera and counted all pyrosome colonies. We adjusted this count by subtracting colonies that were visible in the still frame of the previous meter to avoid double-counts.

In situ videos were captured using a GoPro Hero 4 (4K, 30fps) in a deep-water housing (GoDeep Aluminum, Sexton Inc.) with two 7500 lumen lights (BigBlue VL7500P) mounted to the ship’s onboard CTD rosette frame. Video was aligned to depth information captured by the CTD (SBE 911).

Data Processing Description

Videos were processed using VirtualDub. Depth information was extracted from CTD files using SBE data processing (v.7.26.6).

Data Files

File
pyrosomes_cam.csv (Comma Separated Values (.csv), 236.88 KB) MD5:92992337ac78592a3405b84914a78526 Primary data file for dataset ID 866614

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1737364
NSF Division of Ocean Sciences	OCE-1737399

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
SKQ201804S	W18	2018-02-17	R/V Sikuliaq	Robert K. Cowen (Chief Scientist)	data info
SR1810	S18	2018-07-06	R/V Sally Ride	Robert K. Cowen (Chief Scientist)	data info

Instruments

CTD Sea-Bird 911

Supplied Name: CTD (SBE 911)

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

Underwater Camera

Supplied Name: GoPro Hero 4 (4K, 30fps)

Supplied Description:

Instrument Type

Generic Name: Underwater Camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/180/

Generic Description:

All types of photographic equipment that may be deployed underwater including stills, video, film and digital systems.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise identification number: S=summer; W=winter; 18=2018	unitless	cruise_id
Location	Sampling location: NH=Newport, OR; TR=Trinidad Head, CA	unitless	sta_id
Station	Location along transect: 1=closest nearshore; 5=furthest offshore; D=day; N=night	unitless	sta_id
Transect	Sampling transect: Ma=first transect; Mb=second transect	unitless	transect
Date_Time_UTC	Date and time of the start of the net towing in UTC time zone Format: %Y-%m-%d %H:%M:%S	unitless	ISO_DateTime_UTC
Latitude	Latitude of deployment start location, north is positive	decimal degrees	lat
Longitude	Longitude of deployment start location, west is negative	decimal degrees	lon
Depth	Depth of sampling in meters. Depth bins start at the surface to 100 m.	meters	depth
Pyro_binned_count	Pyrosome counts from vertical video profiles in 1-m depth bins. Data may be missing near the surface due to visual disturbances, or at shallower stations where the bottom depth is < 100 m.	counts	count

Status message

Database

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Dataset: Pyrosomes - Cam