http://lod.bco-dmo.org/id/dataset/2801
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2009-02-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Red crab tag trawl log data: 100-600 fathoms, from the Canadian border (Hague Line) to approximately Hudson Canyon from 2002-2005 (NEC-CoopRes project)
2007-04-01
publication
2007-04-01
revision
BCO-DMO Linked Data URI
2007-04-01
creation
http://lod.bco-dmo.org/id/dataset/2801
Professor Richard A. Wahle
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Wahle, R. A. (2007) Red crab tag trawl log data: 100-600 fathoms, from the Canadian border (Hague Line) to approximately Hudson Canyon from 2002-2005 (NEC-CoopRes project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version final) Version Date 2007-04-01 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2801 [access date]
red crab tag trawl log data Dataset Description: <pre>
&nbsp;</pre>
<h3>Trawl Log Data for Red Crab</h3>
<p><strong>Project Leader: </strong><br />
<em>Richard A. Wahle, </em> Bigelow Laboratory forOcean Sciences<br />
<strong>Additional Participants:</strong><br />
<em>Jon Williams, </em> Benthic Fishing Corp.<br />
<em>Yong Chen, </em> University of Maine</p>
<p><strong>Companion objects:</strong><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_samp.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_samp%7D">red crab sampling data</a><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_tag.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_tag%7D">red crab tag data</a><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_camera.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_camera%7D">redcrab camera data</a><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_tag_return.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_tag_ret%7D">red crab return data</a><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_temp.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_temp%7D">redcrab temp data</a><br />
<a href="http://nec.whoi.edu/jg/serv/NEC/Stock_Assessment/redcrab_trawl.html0%7Bdir=nec.whoi.edu/jg/dir/nec/Stock/,info=nec.whoi.edu/jg/info/nec/Stock/redcrab_trawl%7D">redcrab trawl data</a>.</p>
<p>"The objectives of the main project were to: (1) Employ camera-based and net-trawl sampling methodology established by an earlier NMFS red crab surveys (Wigley et al. 1975) to determine wheter abundance, size structure, and sex composition of the population has changed significantly at the same sites sampled in 1974, (2) Conduct sea sampling to better characterize the commercail catch, (3) Conduct tagging to obtain much needed information on red crab growth rates and movement, and (4) Develop three stock assessment modeling approaches of different complexities (size-structured yield-per-recruit model, production model, and size-structuredied simulation model) to evaluate the dynamics of the red crab stock, estimate current status of the fishery, and evaluate alternative management strategies. The supplemental project compared the efficacy of otter-trawl to net trawl in this application.</p>
<p>The benthic sled system for camera surveys combined with net trawl collection generated the first population density estimates and demographic data of red crab in 30 years. The comparison of the two net trawl methods confirmed that otter trawls were the most efficient approach in these surveys. Results of the main project indicated that the abundance of the largest crabs targeted early in the history of the fishery (males&gt;114 mm, 4.5 inches) is down by approximately 42% since 1974. Based on sea sampling data the fishery now harvests smaller male crabs, and the standing biomass of crabs currently harvested is on a par with 1974 levels. The abundance of smaller males and females is substantially higher than in 1974. Some 9600 crabs were tagged over the course of the study, and of about 300 returns there was little evidence of growth, which is consistent with prior evidence of slow growth for this species. However, the limited growth data curtailed application of the stock assessment models. The full parameterization of these models awaits addtional growth data. Models are implemented as Excel spread sheets that and are available from the PI, and will be easy for the user to update as data become available. These results were a key component of the NMFS red crab stock assessment conducted in 2006. "<em>(extracted from: Final Report Submitted to the NORTHEAST CONSORTIUM, December 11, 2006)</em></p>
<p>&nbsp;</p>
<p><strong>DMO Notes:</strong> Minor corrections were made to the data when launch time and haulback time were on different days.</p>
<p><strong>Questions regarding this data set should be directed to:</strong><br />
Richard A. Wahle<br />
Bigelow Laboratory for Ocean Sciences<br />
P.O. Box 475<br />
West Boothbay Harbor, ME<br />
04575<br />
<br />
Phone: 207 633-9659<br />
E-mail: <a href="mailto:rwahle@bigelow.org">rwahle@bigelow.org</a></p>
<pre>
&nbsp;</pre> Methods and Sampling: <p>The benthic sled system for camera surveys combined with net trawl collection generated the first population density estimates and demographic data of red crab in 30 years. The comparison of the two net trawl methods confirmed that otter trawls were the most efficient approach in these surveys. Results of the main project indicated that the abundance of the largest crabs targeted early in the history of the fishery (males&gt;114 mm, 4.5 inches) is down by approximately 42% since 1974. Based on sea sampling data the fishery now harvests smaller male crabs, and the standing biomass of crabs currently harvested is on a par with 1974 levels. The abundance of smaller males and females is substantially higher than in 1974. Some 9600 crabs were tagged over the course of the study, and of about 300 returns there was little evidence of growth, which is consistent with prior evidence of slow growth for this species. However, the limited growth data curtailed application of the stock assessment models. The full parameterization of these models awaits addtional growth data. Models are implemented as Excel spread sheets that and are available from the PI, and will be easy for the user to update as data become available. These results were a key component of the NMFS red crab stock assessment conducted in 2006. "</p>
completed
Professor Richard A. Wahle
207-633-9600
P.O. Box 475 180 McKown Pt. Road
West Boothbay Harbor
ME
04575-0475
USA
rwahle@bigelow.org
pointOfContact
asNeeded
Dataset Version: final
Unknown
date_local
site
tow
trawl_type
launch_time_start
launch_time_end
haulback_start
haulback_end
bottom_time
water_time
quality_flag
lat
lon
lat_end
lon_end
depth_start_fm
depth_end_fm
temp_ss_f
comments
theme
None, User defined
date_local
No BCO-DMO term
tow
latitude
longitude
latitude at end time of measurement
longitude at end time of measurement
comments
featureType
BCO-DMO Standard Parameters
NEC-RW2001-1
service
Deployment Activity
along the continental slope of the northeast US, between the depths of 100 and 600 fathoms, from the Canadian border (Hague Line) to approximately Hudson Canyon
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
NorthEast Consortium
http://northeastconsortium.org/
NorthEast Consortium
The Northeast Consortium encourages and funds
cooperative research and monitoring projects in the Gulf of Maine and Georges Bank that have effective,
equal partnerships among fishermen, scientists, educators, and marine resource managers.
At the 2008 Maine Fisheremen's Forum, the Northeast Consortium organized a session on data collection and availability. Participants included several key organizations in the Gulf of Maine area, sharing what data are out there and how you can find them.
The Northeast Consortium has joined the Gulf of Maine Ocean Data Partnership. The purpose of the GoMODP is to promote and coordinate the sharing, linking, electronic dissemination, and use of data on the Gulf of Maine region.
The Northeast Consortium was created in 1999 to encourage and fund effective, equal partnerships among commercial fishermen, scientists, and other stakeholders to engage in cooperative research and monitoring projects in the Gulf of Maine and Georges Bank. The Northeast Consortium consists of four research institutions (University of New Hampshire, University of Maine, Massachusetts Institute of Technology, and Woods Hole Oceanographic Institution), which are working together to foster this initiative.
The Northeast Consortium administers nearly $5M annually from the National Oceanic and Atmospheric Administration for cooperative research on a broad range of topics including gear selectivity, fish habitat, stock assessments, and socioeconomics. The funding is appropriated to the National Marine Fisheries Service and administered by the University of New Hampshire on behalf of the Northeast Consortium. Funds are distributed through an annual open competition, which is announced via a Request for Proposals (RFP). All projects must involve partnership between commercial fishermen and scientists.
The Northeast Consortium seeks to fund projects that will be conducted in a responsible manner. Cooperative research projects should be designed to minimize any negative impacts to ecosystems or marine organisms, and be consistent with accepted ethical research practices, including the use of animals and human subjects in research, scrutiny of research protocols by an institutional board of review, etc.
NEC
largerWorkCitation
program
Northeast Consortium: Cooperative Research
http://northeastconsortium.org/
Northeast Consortium: Cooperative Research
<p>The Northeast Consortium encourages and funds cooperative research and monitoring projects in the Gulf of Maine and Georges Bank that have effective, equal partnerships among fishermen, scientists, educators, and marine resource managers.</p>
<p>The Northeast Consortium seeks to fund projects that will be conducted in a responsible manner. Cooperative research projects are designed to minimize any negative impacts to ecosystems or marine organisms, and be consistent with accepted ethical research practices, including the use of animals and human subjects in research, scrutiny of research protocols by an institutional board of review, etc.</p>
NEC-CoopRes
largerWorkCitation
project
eng; USA
oceans
along the continental slope of the northeast US, between the depths of 100 and 600 fathoms, from the Canadian border (Hague Line) to approximately Hudson Canyon
2007-04-01
Georges Bank, Gulf of Maine
0
BCO-DMO catalogue of parameters from Red crab tag trawl log data: 100-600 fathoms, from the Canadian border (Hague Line) to approximately Hudson Canyon from 2002-2005 (NEC-CoopRes project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/13793.rdf
Name: date_local
Units: unknown
Description: <p>local date, e.g. 6/05/2002 stands for June 5th 2002</p>
http://lod.bco-dmo.org/id/dataset-parameter/13794.rdf
Name: site
Units: unknown
Description: <p>where the data were collected, 'NA' means CTD left on the deck of the boat</p>
http://lod.bco-dmo.org/id/dataset-parameter/13795.rdf
Name: tow
Units: dimensionless
Description: <p>tow number/identification, applies to all towed vehicles</p>
http://lod.bco-dmo.org/id/dataset-parameter/13796.rdf
Name: trawl_type
Units: unknown
Description: <p>tow type</p>
http://lod.bco-dmo.org/id/dataset-parameter/13797.rdf
Name: launch_time_start
Units: 24 hour clock
Description: <p>start time of set, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13798.rdf
Name: launch_time_end
Units: 24 hour clock
Description: <p>end time of set, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13799.rdf
Name: haulback_start
Units: 24 hour clock
Description: <p>start time of haulback, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13800.rdf
Name: haulback_end
Units: 24 hour clock
Description: <p>end time of haulback, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13801.rdf
Name: bottom_time
Units: hour and minutes
Description: <p>total bottom time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13802.rdf
Name: water_time
Units: hour and minutes
Description: <p>total in-water time</p>
http://lod.bco-dmo.org/id/dataset-parameter/13803.rdf
Name: quality_flag
Units: Good or Bad
Description: <p>tow quality</p>
http://lod.bco-dmo.org/id/dataset-parameter/13804.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude at start of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13805.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude at start of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13806.rdf
Name: lat_end
Units: decimal degrees
Description: <p>latitude at end of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13807.rdf
Name: lon_end
Units: decimal degrees
Description: <p>longitude at end of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13808.rdf
Name: depth_start_fm
Units: fathoms
Description: <p>depth at start time of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13809.rdf
Name: depth_end_fm
Units: fathoms
Description: <p>depth at end time of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/13810.rdf
Name: temp_ss_f
Units: degrees F
Description: <p>sea surface temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/13811.rdf
Name: comments
Units: unknown
Description: <p>Notes on each tow</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
77004
https://datadocs.bco-dmo.org/file/qAAoE4EhXR80wk/redcrab_log.csv
redcrab_log.csv
Primary data file for dataset ID 2801
download
https://osprey.bco-dmo.org/dataset/2801/data/download
download
onLine
dataset
<p>The benthic sled system for camera surveys combined with net trawl collection generated the first population density estimates and demographic data of red crab in 30 years. The comparison of the two net trawl methods confirmed that otter trawls were the most efficient approach in these surveys. Results of the main project indicated that the abundance of the largest crabs targeted early in the history of the fishery (males&gt;114 mm, 4.5 inches) is down by approximately 42% since 1974. Based on sea sampling data the fishery now harvests smaller male crabs, and the standing biomass of crabs currently harvested is on a par with 1974 levels. The abundance of smaller males and females is substantially higher than in 1974. Some 9600 crabs were tagged over the course of the study, and of about 300 returns there was little evidence of growth, which is consistent with prior evidence of slow growth for this species. However, the limited growth data curtailed application of the stock assessment models. The full parameterization of these models awaits addtional growth data. Models are implemented as Excel spread sheets that and are available from the PI, and will be easy for the user to update as data become available. These results were a key component of the NMFS red crab stock assessment conducted in 2006. "</p>
from Cruise: NEC-RW2001-1 The benthic sled system for camera surveys combined with net trawl collection generated the first population density estimates and demographic data of red crab in 30 years. The comparison of the two net trawl methods confirmed that otter trawls were the most efficient approach in these surveys. Results of the main project indicated that the abundance of the largest crabs targeted early in the history of the fishery (males>114 mm, 4.5 inches) is down by approximately 42% since 1974. Based on sea sampling data the fishery now harvests smaller male crabs, and the standing biomass of crabs currently harvested is on a par with 1974 levels. The abundance of smaller males and females is substantially higher than in 1974. Some 9600 crabs were tagged over the course of the study, and of about 300 returns there was little evidence of growth, which is consistent with prior evidence of slow growth for this species. However, the limited growth data curtailed application of the stock assessment models. The full parameterization of these models awaits addtional growth data. Models are implemented as Excel spread sheets that and are available from the PI, and will be easy for the user to update as data become available. These results were a key component of the NMFS red crab stock assessment conducted in 2006. "
Specified by the Principal Investigator(s)
<p>The objectives of the main project were to: (1) Employ camera-based and net-trawl sampling methodology established by an earlier NMFS red crab surveys (Wigley et al. 1975) to determine wheter abundance, size structure, and sex composition of the population has changed significantly at the same sites sampled in 1974, (2) Conduct sea sampling to better characterize the commercail catch, (3) Conduct tagging to obtain much needed information on red crab growth rates and movement, and (4) Develop three stock assessment modeling approaches of different complexities (size-structured yield-per-recruit model, production model, and size-structuredied simulation model) to evaluate the dynamics of the red crab stock, estimate current status of the fishery, and evaluate alternative management strategies. The supplemental project compared the efficacy of otter-trawl to net trawl in this application.</p>
from Cruise: NEC-RW2001-1 The objectives of the main project were to: (1) Employ camera-based and net-trawl sampling methodology established by an earlier NMFS red crab surveys (Wigley et al. 1975) to determine wheter abundance, size structure, and sex composition of the population has changed significantly at the same sites sampled in 1974, (2) Conduct sea sampling to better characterize the commercail catch, (3) Conduct tagging to obtain much needed information on red crab growth rates and movement, and (4) Develop three stock assessment modeling approaches of different complexities (size-structured yield-per-recruit model, production model, and size-structuredied simulation model) to evaluate the dynamics of the red crab stock, estimate current status of the fishery, and evaluate alternative management strategies. The supplemental project compared the efficacy of otter-trawl to net trawl in this application.
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Cruise: NEC-RW2001-1
NEC-RW2001-1
F/V Krystal James
vessel
NEC-RW2001-1
Professor Richard A. Wahle
http://northeastconsortium.org/ProjectFileDownload.pm?report_id=635&table=project_report
Report describing NEC-RW2001-1
F/V Krystal James
vessel