Collection and locality information of Hemichordata and Echinodermata from global sites, Table S1, Cannon et al (2014) Curr. Bio. (Antarctic Inverts project)
Project
| Contributors | Affiliation | Role |
|---|---|---|
| Halanych, Kenneth M. | Auburn University | Principal Investigator |
| Mahon, Andrew | Central Michigan University | Co-Principal Investigator |
| Copley, Nancy | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Abstract
BCO-DMO Processing notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- converted lat and lon to decimal degrees
- removed special characters (degree symbols) and trailing blank spaces
- changed date format from 'Month, yyyy' to 'Mon-yyyy'
- removed commas
| File |
|---|
Cannon_2014_TS1.csv (Comma Separated Values (.csv), 2.32 KB) MD5:bdf2442d54454a3395ce61afe799493e Primary data file for dataset ID 671493 |
| Parameter | Description | Units |
| species | taxonomic genus and species name | unitless |
| locality | location of specimen collection | unitless |
| latitude | latitude; north is positive | decimal degrees |
| longitude | longitude; east is positive | decimal degrees |
| depth | collection depth | meters |
| collection_date | type of gear used for collection | unitless |
| preservation | type of preservative used | unitless |
| tissue_extracted | type of tissue extracted for transcriptomic study | unitless |
| comments | comments pertaining to samples | unitless |
| Dataset-specific Instrument Name | Blake or Agassiz trawl |
| Generic Instrument Name | Beam Trawl |
| Dataset-specific Description | A modified Beam Trawl. USAP Standard 5-ft. net, robust net and frame system good for exploratory fishing. Qualitative sampling device used to sample large numbers of the megabenthos and benthopelagic fauna It is a double sided trawl adapted from the fishing gear of coastal fishermen. Named after the American naturalist Alexander Agassiz. Also called the Blake trawl or Sigsbee trawl (the name of the ship used by Alexander Agassiz and the captain of that ship respectively). from https://www.isa.org.jm/agassiz-trawl |
| Generic Instrument Description | A beam trawl consists of a cone-shaped body ending in a bag or codend, which retains the catch. In these trawls the horizontal opening of the net is provided by a beam, made of wood or metal, which is up to 12 m long. The vertical opening is provided by two hoop-like trawl shoes mostly made from steel. No hydrodynamic forces are needed to keep a beam trawl open. The beam trawl is normally towed on outriggers, one trawl on each side.
While fishing for flatfish the beam trawl is often equipped with tickler chains to disturb the fish from the seabed. For operations on very rough fishing grounds they can be equipped with chain matrices. Chain matrices are rigged between the beam and the groundrope and prevent boulders/stones from being caught by the trawl. Shrimp beam trawls are not so heavy and have smaller mesh sizes. A bobbin of groundrope with rubber bobbins keeps the shrimp beam trawl in contact with the bottom and gives flatfish the opportunity to escape.
Close bottom contact is necessary for successful operation. To avoid bycatch of most juvenile fishes selectivity devices are assembled (sieve nets, sorting grids, escape holes). While targeting flatfish the beam trawls are towed up to seven knots, therefore the gear is very heavy; the largest gears weighs up to 10 ton. The towing speed for shrimp is between 2.5 and 3 knots.
(from: http://www.fao.org/fishery/geartype/305/en) |
NBP1210
| Website | |
| Platform | RVIB Nathaniel B. Palmer |
| Report | |
| Start Date | 2013-01-06 |
| End Date | 2013-02-09 |
| Description | Seaglider AUV-SG-503-2012 was recovered on this cruise. |
Halanych_lab_2011-16
| Website | |
| Platform | Auburn University lab |
| Start Date | 2011-08-01 |
| End Date | 2016-07-31 |
| Description | Invertebrate genomics |
Genetic connectivity and biogeographic patterns of Antarctic benthic invertebrates (Antarctic Inverts)
Extracted from the NSF award abstract:
The research will explore the genetics, diversity, and biogeography of Antarctic marine benthic invertebrates, seeking to overturn the widely accepted suggestion that benthic fauna do not constitute a large, panmictic population. The investigators will sample adults and larvae from undersampled regions of West Antarctica that, combined with existing samples, will provide significant coverage of the western hemisphere of the Southern Ocean. The objectives are: 1) To assess the degree of genetic connectivity (or isolation) of benthic invertebrate species in the Western Antarctic using high-resolution genetic markers. 2) To begin exploring planktonic larvae spatial and bathymetric distributions for benthic shelf invertebrates in the Bellinghausen, Amundsen and Ross Seas. 3) To continue to develop a Marine Antarctic Genetic Inventory (MAGI) that relates larval and adult forms via DNA barcoding.
| Funding Source | Award |
|---|---|
| NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) | |
| NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) |
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