Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA

This study reports the length-weight relationship (LWR), Fulton's condition factor (K), and sex ratio of the non-native catfish Hoplosternum littorale (Hancock, 1828) in Florida for the first time. Sampling was conducted from November 2013 to April 2014 in Tosohatchee Wildlife Management Area i...

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Main Author: Alexander Benjamin Orfinger
Format: Article
Language:English
Published: University of Tehran 2015-05-01
Series:International Journal of Aquatic Biology
Subjects:
Online Access:http://ij-aquaticbiology.com/index.php/ijab/article/view/104
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author Alexander Benjamin Orfinger
author_facet Alexander Benjamin Orfinger
author_sort Alexander Benjamin Orfinger
collection DOAJ
description This study reports the length-weight relationship (LWR), Fulton's condition factor (K), and sex ratio of the non-native catfish Hoplosternum littorale (Hancock, 1828) in Florida for the first time. Sampling was conducted from November 2013 to April 2014 in Tosohatchee Wildlife Management Area in Christmas, Florida. A total of 477 specimens were caught (6.4-13.5 cm TL). The allometric coefficient b of the LWR was greater than the isometric value (b=3.11), suggesting positive allometric growth. The average value for Fulton's condition factor (K) was 1.396, with no significant differences between juvenile and adult size classes. The results present certain disparities from data recorded from the fishes' native range, suggesting that this freshwater invasive may be flourishing in Florida. In addition, a new maximum total length of the species is reported.
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spelling doaj.art-6e4e57fb7c1b486293fb2f600f1e9ef92022-12-22T00:23:34ZengUniversity of TehranInternational Journal of Aquatic Biology2383-09562322-52702015-05-0134258262103Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USAAlexander Benjamin Orfinger0University of Central FloridaThis study reports the length-weight relationship (LWR), Fulton's condition factor (K), and sex ratio of the non-native catfish Hoplosternum littorale (Hancock, 1828) in Florida for the first time. Sampling was conducted from November 2013 to April 2014 in Tosohatchee Wildlife Management Area in Christmas, Florida. A total of 477 specimens were caught (6.4-13.5 cm TL). The allometric coefficient b of the LWR was greater than the isometric value (b=3.11), suggesting positive allometric growth. The average value for Fulton's condition factor (K) was 1.396, with no significant differences between juvenile and adult size classes. The results present certain disparities from data recorded from the fishes' native range, suggesting that this freshwater invasive may be flourishing in Florida. In addition, a new maximum total length of the species is reported.http://ij-aquaticbiology.com/index.php/ijab/article/view/104Hoplosternum, Length-weight relationship, Fulton's condition factor, Sex ratio.
spellingShingle Alexander Benjamin Orfinger
Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
International Journal of Aquatic Biology
Hoplosternum, Length-weight relationship, Fulton's condition factor, Sex ratio.
title Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
title_full Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
title_fullStr Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
title_full_unstemmed Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
title_short Selected population characteristics of the non-native catfish Hoplosternum littorale (Hancock, 1828) in central Florida, USA
title_sort selected population characteristics of the non native catfish hoplosternum littorale hancock 1828 in central florida usa
topic Hoplosternum, Length-weight relationship, Fulton's condition factor, Sex ratio.
url http://ij-aquaticbiology.com/index.php/ijab/article/view/104
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