ERDDAP > info > bcodmo_dataset_740014

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	[A. pisonii: behavior] - Proportion of time the mangrove tree crab Aratus pisonii spent in different behaviors related to diet and energy storage (Cannizzo et al, (2018) Ecol & Evol.) (Linking Variation in Metabolic Processes as a Key to Prediction)		I   M	background			BCO-DMO	bcodmo_dataset_740014

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	access_formats	String	.htmlTable,.csv,.json,.mat,.nc,.tsv
attribute	NC_GLOBAL	acquisition_description	String	We observed the behavior of individual crabs in situ. In each habitat, we collected groups of five adult A. pisonii by hand and determined the sex and carapace width (to the nearest 0.1mm) of each individual. The groups of crabs were made up of the first five individuals that we encountered and could capture and were drawn from all accessible habitat. We then painted the carapace of each crab an identifying color with nail polish to aid in identification and visibility. Following a short period of observation to ensure normal behavior, we released the crabs onto a single tree within 10 m of the collection tree of all individuals (mangrove), onto separate S. alterniflora stalks within 10 m of the area of collection (saltmarsh), or onto the same piling (dock) of the dock where all individuals were captured. Release in the saltmarsh occurred during the rising tide when the crabs had no access to the sediment. We observed crabs in the mangrove and saltmarsh habitats from the time they lost access to the sediment until the receding tide once again allowed access to the sediment (~6h depending on site and day). In contrast, we observed crabs on docks from three hours before slack high tide until three hours after slack high tide. The total time of observation, in minutes, was recorded. We watched crabs from a distance using binoculars and monitored the individuals continuously throughout the observational period. Behavior was recorded every five minutes and at every change in behavior within those five minute intervals as one of four categories: feeding, sitting, moving, or not-visible. Feeding was defined as the crab actively moving its claws from a food item or substrate to its mouth. Moving was defined as the crab actively moving along a substrate and not feeding. Other energy expending non-feeding activities, such as ritual aggression, were also classified under moving as they represent an expenditure of energy. Sitting was defined as the crab not actively moving, feeding, or participating in any activity. Invisible was defined as the crab not being visible to the observer. We separated the observations into ebb and flood tidal periods.\u00a0 To avoid biasing the data with crabs that were not visible for long periods, we removed data from individuals that were not visible for more than 66% of the tidal period. To calculate the proportion of time each crab performed each activity during each observational period we divided the minutes observed on that activity by the total number of minutes of the observational period. Locations: Florida East Coast. Round Island Park: 27o33'33\"N 80o19'53\"W Pepper Park: 27o29'42'N 80o18'12\"W Bear Point: 27o25'48\"N 80o17'10\"W North Causeway Park: 27o28'28\"N 80o19'12\"W Oslo Road: 27o35'14\"N 80o21'55\"W Anastasia State Park: 29o52'40\"N 81o16'32\"W Guana-Tolomato-Matanzas NERR: 30o0'49\"N 81o20'42\"W Palm Valley/Nocatee Canoe Launch: 30o07'57\"N 81o23'08\"W St. Augustine Yacht Club: 29o53'09\"N 81o17'08\"W
attribute	NC_GLOBAL	awards_0_award_nid	String	562103
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1129166
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1129166
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	David L. Garrison
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50534
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Proportion of time A. pisonii spent in different behaviors B. Griffen, Z. Cannizzo version: 2018-07-16
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2018-07-17T15:33:32Z
attribute	NC_GLOBAL	date_modified	String	2019-12-04T14:59:47Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.740014.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/740014
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, coastwatch, crab, data, dataset, date, dmo, earth, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, erddap, feeding, habitat, height, invisible, iso, management, moving, noaa, ocean, oceanography, oceans, office, preliminary, science, sea, sea_surface_height, sex, site, sitting, surface, Temp, temperature, Tide, time, topography, totduration, year
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/740014/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/740014
attribute	NC_GLOBAL	param_mapping	String	{'740014': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/740014/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of South Carolina
attribute	NC_GLOBAL	people_0_person_name	String	Dr Blaine D. Griffen
attribute	NC_GLOBAL	people_0_person_nid	String	562106
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	University of South Carolina
attribute	NC_GLOBAL	people_1_person_name	String	Zachary J. Cannizzo
attribute	NC_GLOBAL	people_1_person_nid	String	740019
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_person_name	String	Zachary J. Cannizzo
attribute	NC_GLOBAL	people_2_person_nid	String	740019
attribute	NC_GLOBAL	people_2_role	String	Contact
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Nancy Copley
attribute	NC_GLOBAL	people_3_person_nid	String	50396
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	Variation in Metabolic Processes
attribute	NC_GLOBAL	projects_0_acronym	String	Variation in Metabolic Processes
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: A major goal of biological and ecological sciences is to understand natural systems well enough to predict how species and populations will respond to a rapidly changing world (i.e., climate change, habitat loss, etc.). A population under any conditions will grow, shrink, or disappear altogether depending on how efficiently individuals consume resources (food), utilize that food metabolically, and eventually reproduce. However, making accurate predictions based on these metabolic processes is complicated by the realities that each species has different resource requirements and that no two individuals within a species are exactly alike. Rather, individuals vary and this variation, both within and across species, is central to many ecological and evolutionary processes. Developing the ability to predict responses of biological systems to a changing world therefore requires a mechanistic understanding of variation. The goal of this project is to improve this mechanistic understanding by examining variation within a metabolic context across a range of species that have a spectrum of commonly-seen resource requirements. Further, the work capitalizes on a unique biological characteristic of this group of species that allows control and manipulation of individual reproduction, facilitating experimental study of the mechanistic links between variation in individual consumption, metabolism, and reproduction. The foundation this research is a combination of field measurements and laboratory experiments using both well-established and newly-developed techniques to quantify these links. The result will be a quantitative framework to predict how individuals will respond reproductively to changes in resource use. Because of the close link between individual reproduction and population dynamics, this research will contribute substantially to predictions in population dynamics under realistic conditions where individuals use more than a single resource, and improve the prediction of responses to current and future ecological changes. The following publications and data resulted from this project: Belgrad, B. and B. Griffen. 2016. Predator-prey interactions mediated by prey personality and predator identity.Proc. Roy. Soc. B: In Review. [2016-01-20]P. herbstii mortality data: Mortality of crabs when exposed to either a single blue crab, toadfish, or no predator for a weekP. herbstii personality data: Refuge use of crabs when exposed to predator odor cues from either blue crabs, toadfish, or control of no cueP. herbstii predator behavior data: Refuge use and mobility of blue crabs and toadfish while in mesocosms for a week - behavior measured during two days. Belgrad, B. and B. Griffen. 2016. The influence of dietary shifts on fitness of the blue crab, Callinectes sapidus. PloS One. DOI: 10.1371/journal.pone.0145481.Blue crab activity: Activity of crabs fed different diets over a summerBlue crab egg size: Volume of eggs for crabs fed different dietsBlue crab hepatopancreas index (HSI): Weight of hepatopancreas for crabs fed different dietsBlue crab hepatopancreas lipid content: Hepatopancreas lipid content of crabs fed different dietsBlue crab reproductive tissue analysis (GSI): Gonadosomatic index of blue crabs on various dietsBlue crab survival: Blue crab survival data during the dietary study Knotts ER, Griffen BD. 2016. Individual movement rates are sufficient to determine and maintain dynamic spatial positioning within Uca pugilator herds. Behavioral Ecology and Sociobiology 70:639-646Uca pugilator: behavior change with carapace marking: Search space behavior due to carapace treatment (control, nail polish, and food dye)Uca pugilator: field spatial position: Assessment of individual's position within a herd at 3 min. intervals; for proportion of time found at edge of herdUca pugilator: herd position proportion: Individual's proportion of time spent in an edge/alone position among a herdUca pugilator: search space distribution: Search space that crabs traveled; to evaluate the sample's distribution of exploratory behavior Belgrad, B. and B. Griffen. 2015. Rhizocephalan infection modifies host food consumption by reducing host activity levels. Journal of Experimental Marine Biology and Ecology. 466: 70-75.E. depressus digestion time : Time taken for food to pass through gut of flat-backed mud crabs infected by a parasiteE. depressus metabolism: Respiration rate of infected/uninfected flat-backed mud crabsE. depressus reaction time to prey: Time taken for infected/uninfected flat-backed mud crabs to react to the presence of prey Blakeslee, A.M., C.L. Keogh, A.E. Fowler, B. Griffen. 2015. Assessing the effects of trematode infection on invasive green crabs in eastern North America. PLOS One 10(6): e0128674.(pdf)Carcinus: hemocyte density: Counts of circulating hemocyte density in Carcinus maenasCarcinus: parasites physiology behavior: Behavior and physiology of Carcinus maenas infected with trematode parasite Griffen BD, Norelli AP (2015) Spatially variable habitat quality contributes to within-population variation in reproductive success. Ecology and Evolution 5:1474-1483.P. herbstii diet: sampling site characteristics (Eco-Evo 2015)P. herbstii diet: body measurements (Eco-Evo 2015)P. herbstii diet & reproduction (Eco-Evo 2015) P. herbstii: collection sites (Ecol-Evol 2015) Griffen BD, Riley ME (2015) Potential impacts of invasive crabs on one life history strategy of native rock crabs in the Gulf of Maine. Biological Invasions 17:2533-2544.Cancer consumption and reproduction (Bio.Inv. 2015): Lab experiment linking dietary consumption and reproduction Griffen BD, Vogel M, Goulding L, Hartman R (2015) Energetic effects of diet choice by invasive Asian shore crabs: implications for persistence when prey are scarce. Marine Ecology Progress Series 522:181-192.Hemigrapsus diet 1 (MEPS 2015)Hemigrapsus diet 2 (MEPS 2015) Hogan and Griffen (2014). The Dietary And Reproductive Consequences Of Fishery-Related Claw Removal For The Stone Crab Menippe Spp. Journal of Shellfish Research, Vol. 33, No. 3, 795–804.Stone crab: 052012-DietChoiceExp1: Prey choice for 2-clawed and 1-clawed Stone Crabs (Menippe spp.)Stone crab: 052012-LongTermConsumption: Long-term consuption for 2-clawed and 1-clawed Stone Crabs (Menippe spp.), summer of 2012Stone crab: 062013-DietChoiceExp2: Prey choice for 2-clawed and 1-clawed Stone Crabs (Menippe spp.)Stone crab: 062013-PreySizeSelection: Prey Size selection ranking for 2-clawed and 1-clawed Stone Crabs (Menippe spp.) Riley M, Johnston CA, Feller IC, and Griffen B. 2014. Range expansion of Aratus pisonii (mangrove tree crab) into novel vegetative habitats. Southeastern Naturalist 13(4): 43-38A. pisonii: range expansion: Aratus pisonii survey in native mangrove and novel salt marsh habitats Riley M, Vogel M, Griffen B. 2014. Fitness-associated consequences of an omnivorous diet for the mangrove tree crab Aratus pisonii. Aquatic Biology 20:35-43, DOI: 10.3354/ab00543A. pisonii: fitness and diet: Impact of diet variation on physiological and reproductive condition of A. pisonii Toscano BJ, Newsome B, Griffen BD (2014) Parasite modification of predator functional response. Oecologia 175:345-352bE. depressus - parasite and feeding (Oecologia, 2014): Feeding with and without parasitic barnacle infectionE. depressus - parasite and prey handling (Oecologia, 2014): Food handling with and without parasitic barnacle infectionE. depressus - parasite study - field survey (Oecologia, 2014): Parasitised field survey Toscano BJ, Griffen BD (2014) Trait-mediated functional responses: predator behavioural type mediates prey consumption.Journal of Animal Ecology 83:1469-1477P. herbstii - activity and feeding (JAE, 2014): Activity level and feeding with and without predator cue Toscano BJ, Gatto J, Griffen BD (2014) Effects of predation threat on repeatability of individual crab behavior revealed by mark recapture. Behavioral Ecology and Sociobiology 68:519-527P. herbstii - recapture behavior (BESB, 2014): Mud crabs refuge use and activity level - initial measurementsP. herbstii - refuge use (BESB, 2014): Effect of predation threat on repeatability of individual crab behavior revealed by mark-recapture Griffen BD, Altman I, Bess BM, Hurley J, Penfield A (2012) The role of foraging in the success of invasive species. Biological Invasions. 14:2545-2558Hemigrapsus seasonal diet (Bio.Inv. 2012): Percent herbivory and gut fullness for Hemigrapsus sanguineus at different times of year Griffen BD, Toscano B, Gatto J (2012) The role of intraspecific trait variation in mediating indirect interactions. Ecology 93:1935-1943P. herbstii refuge use (Ecology, 2012): Proportion of time that Panopeus herbstii spent using refuge habitats in a lab experimentP. herbstii: Field personality distribution (Ecology, 2012): Field distribution of personality types in the mud crab Panopeus herbstii relative to tidal heightP. herbstii: Trait mediated indirect effect (Ecology, 2012): Influence of refuge use by the mud crab Panopeus herbstii on consumption of bivalves Riley ME, Griffen BD (2017) Habitat-specific differences alter traditional biogeographic patterns of life history in a climate-change induced range expansion.  PLOS One 12(5):e0176263A. pisonii: egg size: Comparing egg size in Aratus pisonii populations from mangrove and salt marsh habitatsA. pisonii: fecundity: Determining fecundity of Aratus pisonii populations in mangrove and salt marsh habitatsA. pisonii: larval starvation resistance: Comparing larval quality in Aratus pisonii populations from mangrove and salt marsh habitatsA. pisonii: latitudinal body size: Survey examining latitudinal body size patterns in Aratus pisoniiA. pisonii: predation: Comparing predation pressure on Aratus pisonii in mangrove and salt marsh habitatsA. pisonii: reproductive effort: Survey comparing Aratus pisonii reproductive effort in native and novel habitatsA. pisonii: herbivory: Relationship between leaf herbivory, tree characteristics, and refuge availabilityA. pisonii: mangrove tree survey: Mangrove tree distribution and characteristics in a dwarf mangrove system Cannizzo ZJ, Dixon SR & Griffen BD (2018). An anthropogenic habitat within a suboptimal colonized ecosystem provides improved conditions for a range-shifting species. Ecology and Evolution, 8(3):1524-1533.A. pisonii: behavior: Proportion of time the mangrove tree crab Aratus pisonii spent in different behaviors related to diet and energy storageA. pisonii: dock-marsh thermal: Thermal readings from under a dock and in a nearby salt marshA. pisonii: sun-shade: Proportion of time that mangrove tree crab Aratus pisonii spent in sun and shade in three habitats, 2015-2016.A. pisonii: thermal picture: Thermal condition of A. pisonii in three habitats: under dock, mangroves, saltmarsh
attribute	NC_GLOBAL	projects_0_end_date	String	2016-08
attribute	NC_GLOBAL	projects_0_name	String	Linking Variation in Metabolic Processes as a Key to Prediction
attribute	NC_GLOBAL	projects_0_project_nid	String	562104
attribute	NC_GLOBAL	projects_0_start_date	String	2011-09
attribute	NC_GLOBAL	publisher_name	String	Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	This dataset includes behavioral observations of individual mangrove tree crabs, Aratus pisonii: the proportion of time spent sitting, moving, feeding, or not visible. Size and sex of the crabs, water temperature, and tidal period of the observations were also recorded. Crabs were collected near Fort Pierce, Florida from a dock area and released into one of three habitats: mangrove, saltmarsh or under the dock.
attribute	NC_GLOBAL	title	String	[A. pisonii: behavior] - Proportion of time the mangrove tree crab Aratus pisonii spent in different behaviors related to diet and energy storage (Cannizzo et al, (2018) Ecol & Evol.) (Linking Variation in Metabolic Processes as a Key to Prediction)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Year		short
attribute	Year	_FillValue	short	32767
attribute	Year	actual_range	short	2015, 2016
attribute	Year	bcodmo_name	String	year
attribute	Year	description	String	Year of observation/collection
attribute	Year	long_name	String	Year
attribute	Year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	Year	units	String	unitless
variable	ID		short
attribute	ID	_FillValue	short	32767
attribute	ID	actual_range	short	1, 172
attribute	ID	bcodmo_name	String	individual
attribute	ID	description	String	individual ID number given to each crab
attribute	ID	long_name	String	ID
attribute	ID	units	String	unitless
variable	Habitat		String
attribute	Habitat	bcodmo_name	String	site_descrip
attribute	Habitat	description	String	The habitat where the crab was collected and observed.
attribute	Habitat	long_name	String	Habitat
attribute	Habitat	units	String	unitless
variable	ISO_Date		String
attribute	ISO_Date	bcodmo_name	String	date
attribute	ISO_Date	description	String	Day of observation/collection formatted as yyyy-mm-dd
attribute	ISO_Date	long_name	String	ISO Date
attribute	ISO_Date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	ISO_Date	source_name	String	ISO_Date
attribute	ISO_Date	time_precision	String	1970-01-01
attribute	ISO_Date	units	String	unitless
variable	Site		String
attribute	Site	bcodmo_name	String	site
attribute	Site	description	String	Site of observation/collection. RI= Round Island Park; PP=Pepper Park; BP=Bear Point; NC=North Causeway Park; Oslo=Oslo Road; ANA=Anastasia State Park; GTM= Guana-Tolomato-Matanzas NERR; PV= Palm Valley/Nocatee Canoe Launch; YC=St. Augustine Yacht Club
attribute	Site	long_name	String	Site
attribute	Site	units	String	unitless
variable	Crab		String
attribute	Crab	bcodmo_name	String	sample_descrip
attribute	Crab	description	String	Color that crab was painted for identification during observations
attribute	Crab	long_name	String	Crab
attribute	Crab	units	String	unitless
variable	CW		float
attribute	CW	_FillValue	float	NaN
attribute	CW	actual_range	float	8.8, 24.7
attribute	CW	bcodmo_name	String	width
attribute	CW	description	String	Size of crab; measured as carapace-width
attribute	CW	long_name	String	CW
attribute	CW	units	String	millimeters (mm)
variable	Sex		String
attribute	Sex	bcodmo_name	String	sex
attribute	Sex	description	String	Sex of crab
attribute	Sex	long_name	String	Sex
attribute	Sex	units	String	unitless
variable	Tide		byte
attribute	Tide	_FillValue	byte	127
attribute	Tide	actual_range	byte	0, 1
attribute	Tide	bcodmo_name	String	unknown
attribute	Tide	colorBarMaximum	double	2.0
attribute	Tide	colorBarMinimum	double	-2.0
attribute	Tide	description	String	Tidal period of observation. 0=flood tide; 1=ebb tide
attribute	Tide	long_name	String	Sea Surface Height
attribute	Tide	units	String	unitless
variable	Temp		float
attribute	Temp	_FillValue	float	NaN
attribute	Temp	actual_range	float	23.9, 36.11
attribute	Temp	bcodmo_name	String	temperature
attribute	Temp	description	String	Air temperature recorded during observation.
attribute	Temp	long_name	String	Temperature
attribute	Temp	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/
attribute	Temp	units	String	degrees Celsius
variable	totduration		short
attribute	totduration	_FillValue	short	32767
attribute	totduration	actual_range	short	56, 371
attribute	totduration	bcodmo_name	String	duration
attribute	totduration	description	String	total duration in minutes of observational period.
attribute	totduration	long_name	String	Totduration
attribute	totduration	units	String	minutes
variable	Sitting		float
attribute	Sitting	_FillValue	float	NaN
attribute	Sitting	actual_range	float	0.01, 1.0
attribute	Sitting	bcodmo_name	String	unknown
attribute	Sitting	description	String	Proportion of time crab spent in sitting behavior during observational period
attribute	Sitting	long_name	String	Sitting
attribute	Sitting	units	String	unitless
variable	Moving		float
attribute	Moving	_FillValue	float	NaN
attribute	Moving	actual_range	float	0.0, 0.38
attribute	Moving	bcodmo_name	String	unknown
attribute	Moving	description	String	Proportion of time crab spent moving during observational period
attribute	Moving	long_name	String	Moving
attribute	Moving	units	String	unitless
variable	Feeding		float
attribute	Feeding	_FillValue	float	NaN
attribute	Feeding	actual_range	float	0.0, 0.79
attribute	Feeding	bcodmo_name	String	unknown
attribute	Feeding	description	String	Proportion of time crab spent feeding during observational period
attribute	Feeding	long_name	String	Feeding
attribute	Feeding	units	String	unitless
variable	Invisible		float
attribute	Invisible	_FillValue	float	NaN
attribute	Invisible	actual_range	float	0.0, 0.66
attribute	Invisible	bcodmo_name	String	unknown
attribute	Invisible	description	String	Proportion of time crab was not visible during observational period
attribute	Invisible	long_name	String	Invisible
attribute	Invisible	units	String	unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.