by
This paper represents a preliminary otolith shape analysis of pelagic redfish (Sebastes mentella) in the Irminger Sea, comparing NAFO and NEAFC convention areas and depth layers (shallower and deeper than 500 m). Elliptical Fourier Analysis (EFA) was applied to describe digitised otolith outlines. T...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2002
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.550.1402 http://archive.nafo.int/open/sc/2002/scr02-035.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.550.1402 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.550.1402 2023-05-15T17:32:22+02:00 by Christoph Stransky The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.550.1402 http://archive.nafo.int/open/sc/2002/scr02-035.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.550.1402 http://archive.nafo.int/open/sc/2002/scr02-035.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://archive.nafo.int/open/sc/2002/scr02-035.pdf Otolith shape analysis Fourier analysis redfish pelagic redfish Sebastes mentella North Atlantic Irminger Sea text 2002 ftciteseerx 2016-01-08T11:30:58Z This paper represents a preliminary otolith shape analysis of pelagic redfish (Sebastes mentella) in the Irminger Sea, comparing NAFO and NEAFC convention areas and depth layers (shallower and deeper than 500 m). Elliptical Fourier Analysis (EFA) was applied to describe digitised otolith outlines. The resulting Fourier descriptors were used as the basis for discriminant analysis to investigate separation success between area/depth groups. In general, differences in univariate measurements (otolith length, breadth and weight) and otolith shapes between area/depth groups were marginal and subject to high variation. Discriminant analysis indicated poor separation between area/depth groups. Differences in average shapes between the area/depth groups were relatively low. Based on this morphometric study, the existence of separate s tocks of S. mentella in the Irminger Sea seems to be unlikely, neither on a vertical (depth) nor horizontal scale (NAFO/NEAFC areas). Text North Atlantic Sebastes mentella Unknown Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Otolith shape analysis Fourier analysis redfish pelagic redfish Sebastes mentella North Atlantic Irminger Sea |
spellingShingle |
Otolith shape analysis Fourier analysis redfish pelagic redfish Sebastes mentella North Atlantic Irminger Sea Christoph Stransky by |
topic_facet |
Otolith shape analysis Fourier analysis redfish pelagic redfish Sebastes mentella North Atlantic Irminger Sea |
description |
This paper represents a preliminary otolith shape analysis of pelagic redfish (Sebastes mentella) in the Irminger Sea, comparing NAFO and NEAFC convention areas and depth layers (shallower and deeper than 500 m). Elliptical Fourier Analysis (EFA) was applied to describe digitised otolith outlines. The resulting Fourier descriptors were used as the basis for discriminant analysis to investigate separation success between area/depth groups. In general, differences in univariate measurements (otolith length, breadth and weight) and otolith shapes between area/depth groups were marginal and subject to high variation. Discriminant analysis indicated poor separation between area/depth groups. Differences in average shapes between the area/depth groups were relatively low. Based on this morphometric study, the existence of separate s tocks of S. mentella in the Irminger Sea seems to be unlikely, neither on a vertical (depth) nor horizontal scale (NAFO/NEAFC areas). |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Christoph Stransky |
author_facet |
Christoph Stransky |
author_sort |
Christoph Stransky |
title |
by |
title_short |
by |
title_full |
by |
title_fullStr |
by |
title_full_unstemmed |
by |
title_sort |
by |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.550.1402 http://archive.nafo.int/open/sc/2002/scr02-035.pdf |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Irminger Sea |
geographic_facet |
Irminger Sea |
genre |
North Atlantic Sebastes mentella |
genre_facet |
North Atlantic Sebastes mentella |
op_source |
http://archive.nafo.int/open/sc/2002/scr02-035.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.550.1402 http://archive.nafo.int/open/sc/2002/scr02-035.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766130441882959872 |