Dataset: A. pisonii: clutch size

Name: Clutch size of the mangrove tree crab A. pisonii from three habitats: mangrove, saltmarsh and mangrove
Published: 2018-07-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: biota, oceans

View Data: Data not available yet

Cite This Dataset

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

Temporal Extent: 2016-06-14 - 2016-10-13

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 Date:

2018-07-16

Restricted:

Yes

Release Date:

2020-07-16

Validated:

Yes

Current State:

Final no updates expected

Clutch size of the mangrove tree crab A. pisonii from three habitats: mangrove, saltmarsh and mangrove

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Description

This dataset includes clutch size of the mangrove tree crab A. pisonii from three habitats: mangrove, saltmarsh and mangrove.

Acquisition Description

We collected 10 ovigerous females by hand and from each habitat (mangrove, salt marsh, dock) during the week preceding the full moon of each of five consecutive months throughout the A. pisonii reproductive season. Crabs were immediately placed on dry ice and stored at -80^oC until dissection at which time the size and gut-width were determined and the whole egg clutch was carefully removed from the pleopods.

We examined the sizes of their egg clutches. We first counted the number of eggs in a subset of the clutch of each crab. We then separately dried both this subset and the rest of the clutch to a constant weight at 60-70^oC. We then determined the average mass of an individual egg in the subset and used this value to calculate the total clutch size as the mass of the full clutch divided by this average. We further calculated the log of the clutch size and crab size in order to explore the size-independent difference in clutch-size between habitats.

Locations: Florida East Coast
Round Island Park: 27o33'33"N 80o19'53"W
Pepper Park: 27o29'42'N 80o18'12"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
Vilano Inlet: 29o55'16"N 81o17'57"W
Palm Valley/Nocatee Canoe Launch: 30o07'57"N 81o23'08"W
St. Augustine Yacht Club: 29o53'09"N 81o17'08"W
Boating Club Road: 29o56'34"N 81o18'31"W

Processing Description

BCO-DMO Processing
- added Year and ISO_Date columns; removed from display Month, Month_Num, Date
- reduced decimal precision of GW_CW from 9 to 3; Fecund and Fec_CW from 4 and 7, respectively, to 0; log columns from 9 to 3; Fec_CW from 7 to 0.

More Information about this dataset

Funding Sources

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

Deployments

None available yet

Instruments

Scale

(more info)

Short Name: Scale

Community Standard Description

Generic Description

An instrument used to measure weight or mass.

PI supplied instrument name:

Dataset-specific description

Used to measure wet and dry weights of eggs

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
ID	Individual ID number given to each crab	unitless	individual
Year	Year of observation/collection	unitless	year
Month	Month of collection	unitless	month
Month_Num	Number of month (1-12) that crab was collected	unitless	month
Date	Day of collection	unitless	date
ISO_Date	Date in ISO format (yyyy-mm-dd)	unitless	date
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
CW	Size of crab; measured as carapace-width	millimeters (mm)	width
GW	Gut width measured as the width of cardiac stomach.	millimeters (mm)	width
GW_CW	gut-width:carapace-width ratio	unitless	unknown
FB_WB	Mass of the weigh-boat in which the full egg brood was dried.	grams	weight
FB_Wet	Wet-mass of the full egg brood (minus a subset) on weigh-boat.	grams	weight
FB_Dry	Dry mass of the full egg brood (minus a subset) on weigh-boat.	grams	weight
Full_Brood	Dry mass of the full egg brood (minus a subset)	grams	weight
Sub_WB	Mass of the weigh-boat in which a subset of the egg brood was dried.	grams	weight
Sub_Dry	Dry mass of a subset of the egg brood on weight-boat.	grams	weight
Sub	Dry mass of a subset of the egg brood.	grams	weight
Count	Number of eggs in the subset	eggs	count
Egg_Weight	The mass of a single egg in the subset.	grams	weight
Fecund	Clutch size of the full egg brood.	eggs	count
Log_Fec	Log of the clutch size	unitless	unknown
Log_CW	Log of the carapace width	unitless	unknown
Log_Fec_Log_CW	Ratio of Log_Fec and Log_CW	unitless	unknown
Fec_CW	Ratio of clutch size and crab size	unitless	unknown

Database

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Dataset: A. pisonii: clutch size