17227
AFSC/ABL: Female Giant Grenadier maturity
AFSC/ABL: Female Giant Grenadier maturity
Data Set
Published / External
12324
Auke Bay Laboratories
Project
Unknown
Giant grenadiers Albatrossia pectoralis are caught as bycatch in deep-sea commercial fisheries in relatively large numbers. The population appears to be stable, although there is no directed fishery, catch limits, or reporting requirements. The purpose of our study was to describe and quantify the reproductive life history characteristics and natural mortality of female giant grenadiers. During the summers of 2004 and 2006, a total of 338 specimens were collected from the Gulf of Alaska. Every phase of reproductive development was found, suggesting a protracted annual spawning season. An ovarian wall thickness technique was used to successfully place 31% (n 24) of the fish with an unknown maturity status into a known category. Female age at 50% maturity was 22.9 years, and preanal fin length at 50% maturity was 26 cm. Total fecundity ranged from 35,000 to 231,000 oocytes (mean106,761), with a mean mature oocyte diameter of 1.26 mm. We developed a new technique for preparing otoliths for age determination by grinding off the distal surface to elucidate the growth zones; age ranged from 14 to 58 years. Estimates of natural female mortality ranged from 0.052 to 0.079 and estimates of total female mortality from 0.061 to 0.149. This life history information will be essential for future management of giant grenadier populations in the North Pacific Ocean.
This dataset contains information on giant genadier maturity and reproduction.
Loaded by batch 3847, 12-17-2012 19:16
Theme
ISO 19115 Topic Category
biota
Theme
deep-water
Theme
female
Theme
histology
Theme
macrouridae
Theme
maturity
Theme
natural mortality
Theme
ovarian development
Spatial
Geographic Names Information System
Alaska
Spatial
Geographic Names Information System
Gulf of Alaska
Spatial
Geographic Names Information System
Southeast Alaska
Auke Bay Laboratories
Juneau
AK
US
Data Set
MS Excel Spreadsheet
None Planned
Document (digital)
unknown
unknown
unknown
Data Steward
2015-10-07
Person
Rodgveller, Cara
cara.rodgveller@noaa.gov
Distributor
2012-12-17
Person
Rodgveller, Cara
cara.rodgveller@noaa.gov
Metadata Contact
2012-12-17
Person
MC, Metadata Coordinators
AFSC.metadata@noaa.gov
Originator
2012-12-17
Person
Rodgveller, Cara
cara.rodgveller@noaa.gov
Point of Contact
2012-12-17
Person
Rodgveller, Cara
cara.rodgveller@noaa.gov
Ground Condition
-151
-133
59.5
54
Gulf of Alaska and Southeast Alaska
Range
2006
2008
Unclassified
N/A
Contact the Point of Contact for data request form.
User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, 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/ABL/Female%20Giant%20Grenadier%20maturity_ID_17227/FemaleGiantGrenadierMaturity2004-06_ID_17227.xlsx
NCEI to be determined
Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/14/2021. Contact: Daniel.woodrich@noaa.gov
None
Contact the dataset POC for full QA/QC methodology
Yes
Unknown
Yes
No
yes
unknown
no delay
To Be Determined
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.
Contact the dataset POC for full methodology
gov.noaa.nmfs.inport:17227
Doug Turnbull
2012-12-17T19:16:26
SysAdmin InPortAdmin
2023-05-30T18:10:18
2016-05-05
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
2016-05-05
1 Year
2017-05-05
None
collection
multiple species
invertebrates
Empire
Biovitae
Carbon-based lifeforms
Kingdom
Animalia
Phylum
Chordata
Subphylum
Vertebrata
Superclass
Osteichthyes
Class
Actinopterygii
Subclass
Neopterygii
Infraclass
Teleostei
Superorder
Paracanthopterygii
Order
Gadiformes
Family
Macrouridae
Subfamily
Macrourinae
Genus
Albatrossia
Species
Albatrossia pectoralis
giant grenadier
Grenadier Maturity
-no description-
AFSC
Age
giant grenadier age
AFSC
No domain defined.
Cruise
cruise number, analagous to year (200601 or 200401)
AFSC
No domain defined.
Station#
station number from AFSC annual Alaska longline survey
AFSC
No domain defined.
Stratum
depth stratum (depth range) in meters
AFSC
No domain defined.
Date
date of sampling
AFSC
No domain defined.
Sex
1=male and 2=female
AFSC
No domain defined.
Maturity
Maturity determined from photos of fresh ovary, histology, and ovarian wall measurements. 1 = immature, oocytes not visible, perinucleolar stage; 2 = immature, small oocytes visible late-vacoule stage; 3 = mature, early vitellogenic oocytes, well defined cream colored eggs; 4= mature, advanced vitellogenic, orange to cream eggs, ovarian wall stretched thin; 5 = mature, spawning; 6 = mature spent, deteriorating eggs and post ovulatory follicles, flacid, ovarian wall thick, residual eggs can appear as orange or white flecks, tissue cloudy; 7 = mature, between spawnings, tissue clear, orange and white flacks, perinucleolar oocytes and maybe early vacoule oocytes, tissue has a scattered appearance, may have atretic yolked oocytes
AFSC
No domain defined.
Length cm
length in cm
AFSC
No domain defined.
Weight gr
ovary free body weight in g
AFSC
No domain defined.
ovary wt
ovary wt in g
AFSC
No domain defined.
specimen #
specimen ID, unique only within a year
AFSC
No domain defined.
at-sea comments
comments about ovary
AFSC
No domain defined.
lab comments
comments about the ovary back at the lab
AFSC
No domain defined.
PN
perinucleolar oocytes present
AFSC
No domain defined.
EV
early vacoule stage oocytes present
AFSC
No domain defined.
LV
Late vacoule stage oocytes present
AFSC
No domain defined.
EY
early yolk stage oocytes present
AFSC
No domain defined.
LY
late yolk stage oocytes present
AFSC
No domain defined.
Near Hyd
at least some ooctes near hydration
AFSC
No domain defined.
POF
post ovulatoty follicles present
AFSC
No domain defined.
Atresia present
atretic oocytes present
AFSC
No domain defined.
A
stage A atretic oocytes present
AFSC
No domain defined.
B
Stage B atretic oocytes present
AFSC
No domain defined.
Later
stages later than A or B atretic oocytes present
AFSC
No domain defined.
Size atresia
size of atretic oocytes (large means it was likley advanced yolked)
AFSC
No domain defined.
Notes
overall notes
AFSC
No domain defined.
Photo
notes from picture of fresh ovary
AFSC
No domain defined.
mature_pics_histo
maturity (unknown, mature, immature) defined by pictures and histological slides
AFSC
No domain defined.
mature_wall_histo_pic
maturity (unknown, mature, immature) defined by pictures and histological slides and ovarian wall width
AFSC
No domain defined.
Avg wall
avergae ovarian wall width
AFSC
No domain defined.
otolith type
otolith shape (hatchet, comb, or mixture of both shapes)
AFSC
No domain defined.