Dataset: A. pisonii: sun-shade

Name: Proportion of time that mangrove tree crab Aratus pisonii spent in sun and shade in three habitats, 2015-2016. Cannizzo et al, (2018) Ecol & Evol.
Published: 2018-07-16
Keywords: biota, oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.741059.1

Spatial Extent: N:30.1325 E:-80.28611 S:27.43 W:-81.38556

Temporal Extent: 2015-05-09 - 2016-07-23

Project:

Linking Variation in Metabolic Processes as a Key to Prediction (Variation in Metabolic Processes)

Principal Investigator:

Dr Blaine D. Griffen (University of South Carolina)

Co-Principal Investigator:

Zachary J. Cannizzo (University of South Carolina)

Contact:

Zachary J. Cannizzo

BCO-DMO Data Manager:

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

Version:

Version Date:

2018-07-16

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset/741059/data

Proportion of time that mangrove tree crab Aratus pisonii spent in sun and shade in three habitats, 2015-2016. Cannizzo et al, (2018) Ecol & Evol.

Abstract:

This dataset includes the proportion of time the mangrove crab, A. pisonii, spent in sun and shade in a mangrove, under a dock, and in a nearby salt marsh for a study of Aratus pisonii behavior. These data are presented in Cannizzo et al, (2018) Ecol & Evol.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2018-07-16	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.741059.1	2019-12-04

Description

Acquisition Description

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. The every five minutes, or at every change in location, the location of the crab in sun or shade was noted.

The proportions of time crabs were observed to spend in the sun, shade, and not visible were calculated as the total minutes the crab spent in each location divided by the total duration of the observational period in minutes.

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

Processing Description

BCO-DMO Processing
- added column for ISO_Date, joining year and month-day columns; removed display of Date (d-Mon) column
- reduced decimal precision of Sun, Shade, Invisible proportions from 9 to 2

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1129166

Deployments

None available yet

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Habitat	The habitat where the crab was collected and observed.	unitless	site_descrip
Site	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	unitless	site
Year	Year of observation/collection	unitless	year
ISO_Date	Date in ISO format (yyyy-mm-dd)	unitless	date
ID	individual ID number given to each crab	unitless	individual
totduration	total duration in minutes of observational period.	minutes	duration
Shade	proportion of time crab was observed in the shade during the observational period	unitless	unknown
Sun	proportion of time crab was observed in the sun during the observational period	unitless	unknown
Invisible	proportion of time crab was not visible to the observer during the observational period	unitless	unknown