CTD station locations for 2010 and 2011 R/V Llyr cruises, Downeast Maine (44.1N 68.1W 44.9N. 66.9W), Saco Bay, Maine (43.45N 70.33W, 43.47N 70.28W) (MuLTI project)

Website: https://www.bco-dmo.org/dataset/3419
Data Type: Cruise Results
Version: 1
Version Date: 2011-02-08

Project
» Does larval transport or physiological tolerance set the southern range boundary of a northern blue mussel? (MuLTI)
ContributorsAffiliationRole
Yund, Philip O.University of New England - Marine Science Center (UNE-MSC)Principal Investigator, Contact
Tilburg, Charles E.University of New England - Marine Science Center (UNE-MSC)Co-Principal Investigator, Contact
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
CTD station locations for 2010 and 2011 R/V Llyr cruises, Downeast Maine (44.1N 68.1W 44.9N. 66.9W), Saco Bay, Maine (43.45N 70.33W, 43.47N 70.28W).


Coverage

Spatial Extent: N:44.98148 E:-66.92126 S:43.45326 W:-70.33037
Temporal Extent: 2010-06-06 - 2011-08-30

Dataset Description

CTD Station Locations for Multiple Years
Deployment, Dataset Id, Station Id, Date, Time, Lat, Lon and Description of CTD Stations
 

Acquisition Description

Generated from dataset metadata forms submitted by Charles Tilburg


Processing Description

Generated from dataset metadata forms submitted by Charles Tilburg


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Parameters

ParameterDescriptionUnits
deploymentDeployment Id text
dataset_nameDataset Name text
sta_idStation Id text
locationGeneral Station Location text
datedate (GMT) in the format yyyymmdd unitless
timetime(GMT) hhmmss
lonlongitude (West is negative) decimal degrees
latlatitude (South is negative) decimal degrees
dataset_descriptionGeneral Description of Dataset text
YearYear of data collection in the format YYYY unitless


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Instruments

Dataset-specific Instrument Name
CTD Sea-Bird SEACAT 19
Generic Instrument Name
CTD Sea-Bird SEACAT 19
Dataset-specific Description
HardwareData DeviceType='SBE19plus' SerialNumber='01906084' Manufacturer Sea-Bird Electronics, Inc. FirmwareVersion 2.0c FirmwareDate 20 February 2008 14:10 PCBAssembly PCBSerialNum='not assigned' AssemblyNum='41054F' PCBAssembly PCBSerialNum='not assigned' AssemblyNum='41580A' PCBAssembly PCBSerialNum='not assigned' AssemblyNum='41056F' PCBAssembly PCBSerialNum='not assigned' AssemblyNum='41059D' MfgDate 11 JUN 2008
Generic Instrument Description
The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. more information from Sea-Bird Electronics


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Deployments

MuLTI_2010

Website
Platform
R/V Llyr
Start Date
2010-06-06
End Date
2010-08-26
Description
 A series of stations were re-visited on 11 separate occasions during the 2010 sampling season.   The stations were generally located in: Downeast Maine, 44.1°N, 68.1°W – 44.9°N. 66.9°W and Saco Bay, Maine, 43.45°N, 70.33°W – 43.47°N. 70.28°W     Deployment      Location              Start_Date       End_Date 06-10-2010      Downeast Maine  2010/06/06      2010/06/10 06-15-2010      Saco Bay Maine  2010/06/15      2010/06/15 06-23-2010      Downeast Maine  2010/06/22      2010/06/23 06-25-2010      Saco Bay Maine  2010/06/25      2010/06/25 07-09-2010      Downeast Maine  2010/07/07      2010/07/09 07-12-2010      Saco Bay Maine  2010/07/12      2010/07/12 07-22-2010      Downeast Maine  2010/07/20      2010/07/22 07-27-2010      Saco Bay Maine  2010/07/27      2010/07/27 08-06-2010      Downeast Maine  2010/08/03      2010/08/06 08-19-2010      Saco Bay Maine  2010/08/19      2010/08/19 08-26-2010      Downeast Maine  2010/08/24      2010/08/26

MuLTI_2011

Website
Platform
R/V Llyr
Start Date
2011-05-17
End Date
2011-08-30
Description
 A series of stations were re-visited on 15 separate occasions during the 2011 sampling season. The stations were generally located in: Downeast Maine, 44.1°N, 68.1°W – 44.9°N. 66.9°W an Saco Bay, Maine, 43.45°N, 70.33°W – 43.47°N. 70.28°W The individual deployments were:   Deployment    Location                 Start_Date      End_Date 05-19-2011    Downeast Maine    2011/05/17    2011/05/19 06-04-2011    Downeast Maine    2011/06/01    2011/06/04 06-08-2011    Saco Bay Maine    2011/06/08    2011/06/08 06-16-2011    Downeast Maine    2011/06/14    2011/06/16 06-22-2011    Saco Bay Maine    2011/06/22    2011/06/22 06-30-2011    Downeast Maine    2011/06/28    2011/06/30 07-01-2011    Saco Bay Maine    2011/07/01    2011/07/01 07-14-2011    Downeast Maine    2011/07/12    2011/07/14 07-15-2011    Saco Bay Maine    2011/07/15    2011/07/15 07-28-2011    Downeast Maine    2011/07/26    2011/07/28 08-03-2011    Saco Bay Maine    2011/08/03    2011/08/03 08-11-2011    Downeast Maine    2011/08/09    2011/08/11 08-12-2011    Saco Bay Maine    2011/08/12    2011/08/12 08-25-2011    Downeast Maine    2011/08/23    2011/08/25 08-30-2011    Saco Bay Maine    2011/08/30    2011/08/30  


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Project Information

Does larval transport or physiological tolerance set the southern range boundary of a northern blue mussel? (MuLTI)

Coverage: Downeast Maine, 44.1°N, 68.1°W – 44.9°N. 66.9°W and Saco Bay, Maine, 43.45°N, 70.33°W – 43.47°N. 70.28°W


Collaborative Research: Does larval transport or physiological tolerance set the southern range boundary of a northern blue mussel?
Acronym "MuLTI" (Mussel Larval Transport Initiative)

This project will test whether the southern range boundary of a northern blue mussel, Mytilus trossulus, is determined by limitations on the dispersal of larvae, or the physiological tolerance of larvae and/or juveniles. Mytilus trossulus and its sister species, M. edulis, co-occur throughout the Canadian maritime provinces and the northern Gulf of Maine. While the abundance of M. trossulus decreases abruptly south of the Canadian border, M. edulis ranges south to North Carolina. Work to date has demonstrated that:
1) Adult M. trossulus in northeastern Maine inhabit coastal sites, islands, and man-made structures that are within the colder water of the Eastern Maine Coastal Current (EMCC).
2) Drifters released in the EMCC rarely enter nearshore waters to the south, suggesting that across-shelf transport is extremely limited.
3) Larvae of the two species may differ slightly in thermal tolerance, and some evidence suggests that tolerance may also be affected by nutritional status.
4) Mytilus trossulus juveniles transplanted within the northeastern Maine region, but outside of the EMCC, have high survivorship, while transplants further to the southwest suffer high mortality.

In combination, these results suggest that larval transport sets the proximate range boundary within northeastern Maine (on a scale of 10 km), but thermal tolerance would ultimately limit the distribution on a larger spatial scale (200 km).

We will test this pair of hypotheses via a combination of field and lab experiments. Satellite drifters equipped with temperature loggers deployed in and out of the EMCC during the season of M. trossulus larval dispersal (mid-June to mid-August) will be used to quantify the physical flow fields and temperature regimes during larval dispersal. Drogues will allow us to assess whether larvae at different depths may experience different flow fields. Data from hydrographic surveys, combined with regular spatial and temporal sampling of mussel larvae and new settlers, will be used to assess possible associations between larval and post-settlement stages and different water masses. The physiological tolerance of new settlers will be assayed via transplants to sites in and out of the EMCC. Finally, laboratory growth and survival experiments will assay larval performance in different thermal and feeding regimes. We will use molecular markers to identify the morphologically indistinguishable larvae and settlers of these sibling species.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)
NSF Division of Ocean Sciences (NSF OCE)

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