28008
AFSC/RACE/GAP/Nichol: Archival tag depth and temperature data from snow crab
AFSC/RACE/GAP/Nichol: Archival tag depth and temperature data from snow crab
Data Set
Published / External
22291
Groundfish Assessment Program
Project
Completed
Seasonal migration of commercial-size (=102 mm carapace width [CW]), morphometrically mature (MM) snow crabs (Chionoecetes opilio) from the eastern Bering Sea was examined in relation to the summer distribution of mature females to identify spatiotemporal overlap of males and females and determine the likelihood of mating associations for specific reproductive stages. Depth variation associated with this migration was examined to determine whether seasonal migrations contribute to previously recognized spatial differences in distributions of commercial-size males caught in the winter fishery and in the National Marine Fisheries Service summer bottom trawl survey. Depth data from 33 data storage tags attached to commercial-size MM males during 2010 and 2011 indicated that most males moved inshore during spring—a movement that would allow them to mate with multiparous females but not with pubescent-primiparous females. Smaller tagged males (100–102 mm CW) underwent more extensive inshore migrations, and several of them traveled more than 100 km in one direction. Both tagging and distribution data indicated that most commercial-size MM males remained predominantly on the outer shelf throughout the year (despite some inshore movements during spring) and, therefore, these males did not contribute greatly to the spatial differences observed between winter and summer.
To examine the migration of commercial-size (=102 mm carapace width [CW]), morphometrically mature (MM) snow crabs (Chionoecetes opilio) from the eastern Bering Sea.
Loaded by FGDC Metadata Uploader, batch 7332, 10-15-2015 13:32
Nichol, D.G. and Somerton, D.A. 2015. Seasonal migrations of morphometrically mature male snow crab (Chionoecetes opilio) in the eastern Bering Sea in relation to mating dynamics. Fishery Bulletin 113: 313-326.
Theme
ISO 19115 Topic Category
environment
Theme
ISO 19115 Topic Category
oceans
Spatial
Error
ORA-30625: method dispatch on NULL SELF argument is disallowed
Alaska Fisheries Science Center
Seattle
WA
USA
Data Set
Table (digital)
The user is responsible for the results of any application of this data for other than its intended purpose. NOAA denies liability if the data are misused.
unknown
N/A
N/A
Data Steward
2015-11-02
Person
Nichol, Dan
dan.nichol@noaa.gov
Distributor
2015-11-02
Organization
Alaska Fisheries Science Center
AFSC
afsc.webmaster@noaa.gov
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
(206) 526-4000
(206) 526-4004
https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
AKFSC Home Page
Online Resource
0700-1700 Pacific Time
Metadata Contact
2015-10-15
Person
MC, Metadata Coordinators
AFSC.metadata@noaa.gov
Originator
2015-10-15
Person
Nichol, Dan
dan.nichol@noaa.gov
Originator
2015-10-15
Organization
Alaska Fisheries Science Center
AFSC
afsc.webmaster@noaa.gov
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
(206) 526-4000
(206) 526-4004
https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
AKFSC Home Page
Online Resource
0700-1700 Pacific Time
Point of Contact
2015-10-15
Person
Nichol, Dan
dan.nichol@noaa.gov
-174
-172
59
57
Range
2010
2012
Unclassified
e-mail PI
There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed.
User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement of NOAA/NMFS/AFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested.
https://console.cloud.google.com/storage/browser/_details/nmfs_odp_afsc/RACE/GAP/2010-2012%20Archival%20tag%20depth%20and%20temperature%20from%20snow%20crab.csv
2015-11-02
Organization
Alaska Fisheries Science Center
28008_RACE_2010-2012_Archival_tag_depth_and_temper
Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/15/2021. Contact: Daniel.woodrich@noaa.gov
csv (comma-separated values)
CSV - Comma Separated Values (Text)
unknown
No
Unknown
No
No
yes
unknown
n/a
NCEI-MD
unknown
"IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption."
Methodology:
A total of 277 morphometrically mature male snow crabs (96–134 mm CW) were tagged and released with pressure-and-temperature-recording DSTs on 18–22 April 2010 (n=120) and 7–8 March 2011 (n=157), near the end of each fishing season to ensure that tagged crabs were not recaptured until the following year. Tagging operations occurred on the winter snow crab fishing grounds northwest of the Pribilof Islands at approximately 57°35' N in 2010 and about 100 km farther north at 58°30' N in 2011 (Fig. 1). DSTs were attached to spaghetti tags that were wrapped around the carapace of the crabs between the first and second walking legs. Because male snow crabs do not molt after they reach maturity, the effect of tagging on their behavior and mortality was assumed to be negligible. In April 2010, an additional 221 snow crabs were tagged and released with numbered spaghetti tags without a DST attached as a control to test whether the additional DST attachment affected capture rate, as well as to help examine site fidelity.
Crabs were captured and tagged aboard commercial pot fishing vessels Kiska Sea (in 2010) and Pacific Sun (in 2011) during normal commercial fishing operations, and they were released within 10 min of capture at the same location. All tagged male crabs were large-clawed with new to slightly worn hard shells, conditions that predominated in the catches during tagging. Only crabs that possessed all their limbs were selected for tagging. Tagged crabs were recaptured by commercial crab pot vessels during the following winter and spring snow crab fisheries in 2011 and 2012, and a tag reward program was implemented to provide an incentive to return tags. Tag recapture locations were provided by the fishermen who returned tags.
The DSTs, Cefas G5 Long Life tags with 2 MB of memory (Cefas Technology Limited, Lowestoft, UK), measured depth (pressure) at 1-min intervals, with an accuracy of ±2 m and precision of <0.08 m, and temperature at 30-min intervals, with an accuracy of ±0.1°C and precision of 0.03°C. DSTs were bullet-shaped with dimensions of 8 × 31 mm and weighed 1g in water.
gov.noaa.nmfs.inport:28008
Nancy Roberson
2015-10-15T13:32:35
SysAdmin InPortAdmin
2024-01-15T12:08:04
2016-05-18
Alaska Fisheries Science Center
AFSC
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
http://www.afsc.noaa.gov
0700-1700 Pacific Time
1001
Public
No
2016-05-18
1 Year
2017-05-18