Dataset: Wrack Composition and Abundance
Deployment: Dugan_UCSB_2015-2017

Wrack composition and abundance on sandy beaches

Principal Investigator:

Jenifer E. Dugan (University of California-Santa Barbara, UCSB-MSI)

Co-Principal Investigator:

Robert Miller (University of California-Santa Barbara, UCSB-MSI)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Linking nearshore kelp forest dynamics to sandy beach ecosystems (Linking Kelp to Beaches)

Data URL:

https://www.bco-dmo.org/dataset-deployment/815098/data

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Description

Composition and abundance of macrophyte wrack at six Santa Barbara beaches quantified during surveys conducted from 2015-2017.

Methods & Sampling

Dataset acquisition description

We quantified composition and abundance of macrophyte wrack of the six study beaches during each survey from 2015-2017. Wrack composition and cover were recorded for each of six shore-normal transects of variable length that extended from the lower edge of terrestrial vegetation or the bluff to the lowest intertidal level exposed by swash at each location. The transects were randomly assigned to locations within the first 100 m of shoreline from the access point using a random number table and a distance measuring wheel. We used a line-intercept method along each transect tape to quantify wrack cover. The presence and extent (length, depth) of each type of macrophyte, driftwood, carrion, tar, trash and any other beach-cast wrack was recorded along each transect tape, yielding total wrack cover by wrack type for each transect. Data are reported as m2/m of shoreline.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:
- joined site coordinates to the data using Site Name as the key;
- converted Date field to yyyy-mm-dd format;
- renamed original 'Type' column to 'Type_Code' and added the definition to new column 'Type';
- replaced commas with semi-colons in the Notes column;
- removed commas from the Type column.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1458845	NSF Division of Ocean Sciences

Instruments

Measuring Tape

Supplied Name: distance measuring wheel

Supplied Description:

Instrument Type

Generic Name: Measuring Tape

Generic Description:

A tape measure or measuring tape is a flexible ruler. It consists of a ribbon of cloth, plastic, fibre glass, or metal strip with linear-measurement markings. It is a common tool for measuring distance or length.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Site	Unique site name	unitless	site
Latitude	Latitude of survey site; positive values = North	decimal degrees North	lat
Longitude	Longitude of surveysite; positive values = East	decimal degrees North	lon
Year	The year that the survey was done. This year is expressed in YYYY format. Dates reflect measurements taken in local time. For sites in Alaska, local time is Alaska Standard Time except during months when Alaska Daylight time is effective. For all other Pacific Coast sites, local time is Pacific Standard Time except during months when Pacific Daylight Time is effective.	unitless	year
Month	The month that the survey was done. Dates reflect measurements taken in local time. For sites in Alaska, local time is Alaska Standard Time except during months when Alaska Daylight time is effective. For all other Pacific Coast sites, local time is Pacific Standard Time except during months when Pacific Daylight Time is effective.	unitless	month
Date	Date of survey; format: YYYY-MM-DD	unitless	date
Transect	A letter representing one of 6 shore normal transects (A-F) within the study beach The transect letter is determined by the order from the beach access point.	unitless	transect
Start	start point (meters) of wrack unit on transect	meters (m)	sample_descrip
End	end point (meters) of wrack unit on transect	meters (m)	sample_descrip
Length	length (meters) of wrack unit (end-start)	meters (m)	length
Type_Code	type of wrack or non-sand substrate as code	unitless	sample_descrip
Type	type of wrack or non-sand substrate	unitless	sample_descrip
Depth	depth (cm) of wrack	centimeters (cm)	sample_descrip
Investigator	name of investigator	unitless	investigator
Notes	notes on site or transect	unitless	comment

Database

Contribute Data

Dataset: Wrack Composition and Abundance
Deployment: Dugan_UCSB_2015-2017

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Wrack Composition and AbundanceDeployment: Dugan_UCSB_2015-2017

Dataset acquisition description

Dataset Processing Description

Dataset: Wrack Composition and Abundance
Deployment: Dugan_UCSB_2015-2017