PARR OBSOLETE Measurements and Counts for Larval and Juvenile Beryx Specimens

Metadata Updated: February 27, 2019

Larval alfonsin (Beryx species) were collected in the vicinity of the Southeast Hancock Seamount. A three-net Tucker trawl (I m2 effective mouth opening and 0.333 mm bar mesh), containing calibrated flowmeters, was towed at 2-3 knots for 14-38 min per net. Samples were taken at a depth strata of 0-25, 25-50, 50-100, and 100-200 m, with additional oblique tows taken at 0-50 and 0-100 m as the trawl was retrieved from the deeper strata. Samples were fixed in 10% buffered formalin. Larvae (133 specimens) were removed from sorted samples and preserved in 70% ethanol approximately 18 months after collection. Additional specimens of large larvae and small juveniles of B. splendens and B. decadactylus from the Atlantic Ocean were borrowed from the Woods Hole Oceanographic Institution (WHOI) collections housed at the Museum of Comparative Zoology, Harvard University (MCZ); the U.S. National Museum of Natural History (USNM), and the Atlantic Reference Center, Huntsman Marine Laboratory (ARC). Yolk-sac larvae of B. splendens were obtained by artificial fertilization using gametes from identified adults caught by handline at the Hancock Seamount on 30 July 1984. Counts of fin elements, head spines, and myomeres were made using a dissection (stereoscopic) microscope, and measurements were taken with an ocular micrometer in the microscope by Bruce C. Mundy. Illustrations were made using a camera lucida. Specimens were stained lightly with alizarin red S to enhance visibility of head spines and fin elements.

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Dates

Metadata Date January 30, 2019
Metadata Created Date January 16, 2016
Metadata Updated Date February 27, 2019
Reference Date(s) May 5, 1990 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date January 30, 2019
Metadata Created Date January 16, 2016
Metadata Updated Date February 27, 2019
Reference Date(s) May 5, 1990 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: None |
Bbox East Long -170
Bbox North Lat 30
Bbox South Lat 0
Bbox West Long 180
Coupled Resource
Frequency Of Update notPlanned
Guid gov.noaa.nmfs.inport:10828
Harvest Object Id c8a8a851-ff87-4059-93b4-2c5f64716ca9
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1984-07-09
Temporal Extent End 1989-09-30

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