An assessment of burbot ( Lota Iota ) weight - length data from North American populations
Declining buroot (Lola lola) abundance across some portions of North America has prompted a search for additional evaluation tools, including a measure of condition. Weight - length data were compiled for 10293 burbot from 79 North American populations. These data were used to develop a 75th percent...
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1996
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ftunivnebraskali:oai:digitalcommons.unl.edu:ncfwrustaff-1032 2023-11-12T04:15:28+01:00 An assessment of burbot ( Lota Iota ) weight - length data from North American populations Fisher, Shannon J. Willis, David W. Pope, Kevin L. 1996-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/ncfwrustaff/33 https://digitalcommons.unl.edu/context/ncfwrustaff/article/1032/viewcontent/Fisher_et_al._1996_CJZ74.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/ncfwrustaff/33 https://digitalcommons.unl.edu/context/ncfwrustaff/article/1032/viewcontent/Fisher_et_al._1996_CJZ74.pdf Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications Other Environmental Sciences text 1996 ftunivnebraskali 2023-10-30T10:46:52Z Declining buroot (Lola lola) abundance across some portions of North America has prompted a search for additional evaluation tools, including a measure of condition. Weight - length data were compiled for 10293 burbot from 79 North American populations. These data were used to develop a 75th percentile standard weight (W,) equation using the regression-line-percentile technique. The proposed equation is log10 W3 = - 4.868 + 2.898 log10 TL, where Ws is the standard weight in grams, and TL is the maximum total length in millimetres. The equation is valid for burbot ≥20 cm and will allow calculation of relative weights (Wr) for this species. Based on the length of the longest burbot in our data set ( 104.3 cm), we propose minimum standardized length categories of 20, 38, 53, 67, and 82 cm for stock, quality, preferred , memorable, and trophy length, respectively. The standard length categories will allow I determination of mean W, by length group, as well as calculation of stock density indices. Differences in W, values , were present between lentic and lotic burbot populations, suggesting variation in body shape and a need for establishment of different W, objective ranges. Text Burbot lota University of Nebraska-Lincoln: DigitalCommons@UNL Lola ENVELOPE(-44.700,-44.700,-60.717,-60.717) |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Other Environmental Sciences |
spellingShingle |
Other Environmental Sciences Fisher, Shannon J. Willis, David W. Pope, Kevin L. An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
topic_facet |
Other Environmental Sciences |
description |
Declining buroot (Lola lola) abundance across some portions of North America has prompted a search for additional evaluation tools, including a measure of condition. Weight - length data were compiled for 10293 burbot from 79 North American populations. These data were used to develop a 75th percentile standard weight (W,) equation using the regression-line-percentile technique. The proposed equation is log10 W3 = - 4.868 + 2.898 log10 TL, where Ws is the standard weight in grams, and TL is the maximum total length in millimetres. The equation is valid for burbot ≥20 cm and will allow calculation of relative weights (Wr) for this species. Based on the length of the longest burbot in our data set ( 104.3 cm), we propose minimum standardized length categories of 20, 38, 53, 67, and 82 cm for stock, quality, preferred , memorable, and trophy length, respectively. The standard length categories will allow I determination of mean W, by length group, as well as calculation of stock density indices. Differences in W, values , were present between lentic and lotic burbot populations, suggesting variation in body shape and a need for establishment of different W, objective ranges. |
format |
Text |
author |
Fisher, Shannon J. Willis, David W. Pope, Kevin L. |
author_facet |
Fisher, Shannon J. Willis, David W. Pope, Kevin L. |
author_sort |
Fisher, Shannon J. |
title |
An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
title_short |
An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
title_full |
An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
title_fullStr |
An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
title_full_unstemmed |
An assessment of burbot ( Lota Iota ) weight - length data from North American populations |
title_sort |
assessment of burbot ( lota iota ) weight - length data from north american populations |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
1996 |
url |
https://digitalcommons.unl.edu/ncfwrustaff/33 https://digitalcommons.unl.edu/context/ncfwrustaff/article/1032/viewcontent/Fisher_et_al._1996_CJZ74.pdf |
long_lat |
ENVELOPE(-44.700,-44.700,-60.717,-60.717) |
geographic |
Lola |
geographic_facet |
Lola |
genre |
Burbot lota |
genre_facet |
Burbot lota |
op_source |
Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications |
op_relation |
https://digitalcommons.unl.edu/ncfwrustaff/33 https://digitalcommons.unl.edu/context/ncfwrustaff/article/1032/viewcontent/Fisher_et_al._1996_CJZ74.pdf |
_version_ |
1782332768109199360 |