Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata
The eastern Bering Sea is an area of high skate abundance and diversity. Relative to their abundance, however, little is known about basic life history traits for most skate species living there. Fisheries managers require life history information, including age, growth, and reproduction, to develop...
Main Author: | |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Digital Commons @ CSUMB
2009
|
Subjects: | |
Online Access: | https://digitalcommons.csumb.edu/caps_thes_restricted/111 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=1110&context=caps_thes_restricted |
id |
ftcalifstunimbay:oai:digitalcommons.csumb.edu:caps_thes_restricted-1110 |
---|---|
record_format |
openpolar |
spelling |
ftcalifstunimbay:oai:digitalcommons.csumb.edu:caps_thes_restricted-1110 2023-05-15T15:43:10+02:00 Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata Fry Maurer, Jasmine Rae 2009-01-01T08:00:00Z application/pdf https://digitalcommons.csumb.edu/caps_thes_restricted/111 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=1110&context=caps_thes_restricted unknown Digital Commons @ CSUMB https://digitalcommons.csumb.edu/caps_thes_restricted/111 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=1110&context=caps_thes_restricted Capstone Projects and Master's Theses skates Bering Sea life history age Commander skate whiteblotched skate text 2009 ftcalifstunimbay 2021-12-28T15:25:55Z The eastern Bering Sea is an area of high skate abundance and diversity. Relative to their abundance, however, little is known about basic life history traits for most skate species living there. Fisheries managers require life history information, including age, growth, and reproduction, to develop sustainable fisheries models. The two species in the current study are the Commander skate, Bathyraja lindbergi, and whiteblotched skate, Bathyraja maculata. Samples were collected during NOAA Fisheries survey cruises in the eastern Bering Sea and through the National Marine Fisheries Service Alaska Fisheries Science Center observer program. Age estimates from two vertebral preparation techniques, gross sectioning and histology, were compared. Histological preparation of vertebrae had greater levels of precision, consistently greater band pair counts, and produces significantly different growth parameters than gross sectioning. Therefore the results below are only from vertebrae prepared histologically. Maximum age estimates for B. lindbergi females is 33 years and for males is 31 years, for B. maculata females is 33 years and for males is 36 years. Caudal thorns were not useful ageing structures for these species. Age at 50% maturity for B. lindbergi females is 21.1 years and males is 21.9 years, for B. maculata females is 25.8 years and males is 24.5 years. Text Bering Sea Alaska Digital Commons @ CSUMB (California State University, Monterey Bay) Bering Sea |
institution |
Open Polar |
collection |
Digital Commons @ CSUMB (California State University, Monterey Bay) |
op_collection_id |
ftcalifstunimbay |
language |
unknown |
topic |
skates Bering Sea life history age Commander skate whiteblotched skate |
spellingShingle |
skates Bering Sea life history age Commander skate whiteblotched skate Fry Maurer, Jasmine Rae Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
topic_facet |
skates Bering Sea life history age Commander skate whiteblotched skate |
description |
The eastern Bering Sea is an area of high skate abundance and diversity. Relative to their abundance, however, little is known about basic life history traits for most skate species living there. Fisheries managers require life history information, including age, growth, and reproduction, to develop sustainable fisheries models. The two species in the current study are the Commander skate, Bathyraja lindbergi, and whiteblotched skate, Bathyraja maculata. Samples were collected during NOAA Fisheries survey cruises in the eastern Bering Sea and through the National Marine Fisheries Service Alaska Fisheries Science Center observer program. Age estimates from two vertebral preparation techniques, gross sectioning and histology, were compared. Histological preparation of vertebrae had greater levels of precision, consistently greater band pair counts, and produces significantly different growth parameters than gross sectioning. Therefore the results below are only from vertebrae prepared histologically. Maximum age estimates for B. lindbergi females is 33 years and for males is 31 years, for B. maculata females is 33 years and for males is 36 years. Caudal thorns were not useful ageing structures for these species. Age at 50% maturity for B. lindbergi females is 21.1 years and males is 21.9 years, for B. maculata females is 25.8 years and males is 24.5 years. |
format |
Text |
author |
Fry Maurer, Jasmine Rae |
author_facet |
Fry Maurer, Jasmine Rae |
author_sort |
Fry Maurer, Jasmine Rae |
title |
Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
title_short |
Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
title_full |
Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
title_fullStr |
Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
title_full_unstemmed |
Life history of two Bering Sea slope skates : Bathyraja lindbergi and B. maculata |
title_sort |
life history of two bering sea slope skates : bathyraja lindbergi and b. maculata |
publisher |
Digital Commons @ CSUMB |
publishDate |
2009 |
url |
https://digitalcommons.csumb.edu/caps_thes_restricted/111 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=1110&context=caps_thes_restricted |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_source |
Capstone Projects and Master's Theses |
op_relation |
https://digitalcommons.csumb.edu/caps_thes_restricted/111 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=1110&context=caps_thes_restricted |
_version_ |
1766377214845124608 |