Dataset: brooded coral larvae 2 - larval release March 2003-2008

Name: Historical larval release of P. damicornis, Taiwan, March 2003-2008 (Cumbo, 2013) (MCR LTER project, Climate_Coral_Larvae project)
Published: 2014-08-30
Keywords: oceans

Cite This Dataset

Spatial Extent: N:21.9382 E:120.746 S:21.9382 W:120.746

Project:

Moorea Coral Reef Long-Term Ecological Research site (MCR LTER)

The ecophysiological basis of the response of coral larvae and early life history stages to global climate change (Climate_Coral_Larvae)

Program:

Long Term Ecological Research network (LTER)

Principal Investigator:

Peter J. Edmunds (California State University Northridge, CSUN)

Scientist:

Dr Vivian R Cumbo (California State University Northridge, CSUN)

BCO-DMO Data Manager:

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

Version:

2014-08-30

Version Date:

2014-08-30

Validated:

Yes

Current State:

Final no updates expected

Historical larval release of P. damicornis, Taiwan, March 2003-2008 (Cumbo, 2013) (MCR LTER project, Climate_Coral_Larvae project)

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Description

To evaluate the effects of temperature and pCO2 on coral larvae, brooded larvae of Pocillopora damicornis from Nanwan Bay, Taiwan (21°56.179' N, 120°44.85' E), were exposed to ambient (419-470 µatm) and high (604-742 µatm) pCO2 at ~25 and ~29 °C in two experiments conducted in March 2010 and March 2012. Larvae were sampled from four consecutive lunar days (LD) synchronized with spawning following the new moon, incubated in treatments for 24 h, and measured for respiration, maximum photochemical efficiency of PSII (F v/F m), and mortality.

The most striking outcome was a strong effect of time (i.e., LD) on larvae performance: respiration was affected by an LD × temperature interaction in 2010 and 2012, as well as an LD × pCO2 × temperature interaction in 2012; F v/F m was affected by LD in 2010 (but not 2012); and mortality was affected by an LD × pCO2 interaction in 2010, and an LD × temperature interaction in 2012. There were no main effects of pCO2 in 2010, but in 2012, high pCO2 depressed metabolic rate and reduced mortality. Therefore, differences in larval performance depended on day of release and resulted in varying susceptibility to future predicted environmental conditions. These results underscore the importance of considering larval brood variation across days when designing experiments. Subtle differences in experimental outcomes between years suggest that transgenerational plasticity in combination with unique histories of exposure to physical conditions can modulate the response of brooded coral larvae to climate change and ocean acidification.

These data include the timing of larval release from P. damicornis in Taiwan on lunar March 2003, 2005, 2007, and 2008 (Fan et al. 2006; TY Fan unpublished data).

Related datasets:

brooded coral larvae 2 - carbonate chemistry
brooded coral larvae 2 - respiration_photosyth_mortality

These data are published in Vivian R Cumbo, Peter J Edmunds, Christopher B Wall, Tung-Yung Fan. (2013) Brooded coral larvae differ in their response to high temperature and elevated pCO2 depending on the day of release. Marine Biology. See Figure 3.

Download complete data for this publication (Excel file)
Data also available from PANGAEA: DOI 10.1007/s00227-013-2280-y

References:

* Vivian R Cumbo, Peter J Edmunds, Christopher B Wall, Tung-Yung Fan. (2013) Brooded coral larvae differ in their response to high temperature and elevated pCO2 depending on the day of release. Marine Biology. See Figure 3.

Fan TY, Lin KH, Kuo FW, Soong K, Liu LL, Fang LS (2006) Diel patterns of larval release by five brooding scleractinian corals. Mar Ecol Prog Ser 321:133-142

Methods & Sampling

To place the present results in a broader context, the timing of larval release from P. damicornis in Taiwan was examined over multiple years to determine when the peak larval release occurred in March, relative to the preceding new moon. The analysis was used to weight the outcome of the present analysis for ecological significance based on the LD when the majority of larvae are released. The analysis was accomplished by compiling data on lunar March 2003, 2005, 2007, and 2008 (Fan et al. 2006; TY Fan unpublished data). In each of 4 years, coral colonies from the same location as in this study were transported to NMMBA and placed in flow-through aquaria as described above. In 2003 and 2005, 8 colonies month-1 were used, but in 2007 and 2008, 4 colonies month-1 were used. During these analyses, the beakers collecting larvae released from each colony were inspected daily (at 0900 hours) and the number of larvae counted. The number of larvae released daily from each colony in each year was summed to give the total number released on each LD over 4 years.

Data Processing Description

BCO-DMO processing notes:

- added conventional header with dataset name, PI name, version date, reference information
- added lab, lat, lon columns
- renamed parameters to BCO-DMO standard

Data Files

File
brood2_historical_counts.csv (Comma Separated Values (.csv), 3.29 KB) MD5:d4bb1cb3ab12705c0792d3b8cf80a243 Primary data file for dataset ID 528880

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0844785

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
lab_Edmunds_NMMBA		2010-03-18	Natl Museum Mar. Bio. and Aquar. Taiwan	Peter J. Edmunds (Lead Principal Investigator)	data info

Instruments

In-situ incubator

Supplied Name: flow-through aquaria

Supplied Description:

Instrument Type

Generic Name: In-situ incubator

Acronym: in-situ incubator

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/82/

Generic Description:

A device on a ship or in the laboratory that holds water samples under controlled conditions of temperature and possibly illumination.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
site	location of sample collection	unitless	site
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
year	year of sample collection	YYYY	year
month	month of sample collection	unitless	month
lunar_day	lunar day: days since the new moon	unitless	day
num_colonies	number of colonies in sample	unitless	count
larvae_released_total	total number of larvae released from the colonies	unitless	count

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Database

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Dataset: brooded coral larvae 2 - larval release March 2003-2008