Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland
Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus Dana), which is a new species for this lake. Sign...
Ausführliche Beschreibung
Autor*in: |
Ulikowski Dariusz [verfasserIn] Chybowski Łucjan [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
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2018 |
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Übergeordnetes Werk: |
In: Archives of Polish Fisheries - Sciendo, 2011, 26(2018), 2, Seite 141-147 |
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Übergeordnetes Werk: |
volume:26 ; year:2018 ; number:2 ; pages:141-147 |
Links: |
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DOI / URN: |
10.2478/aopf-2018-0015 |
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Katalog-ID: |
DOAJ06404355X |
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10.2478/aopf-2018-0015 doi (DE-627)DOAJ06404355X (DE-599)DOAJc278ba7e44d4409186786e9b44063ef2 DE-627 ger DE-627 rakwb eng SH1-691 Ulikowski Dariusz verfasserin aut Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus Dana), which is a new species for this lake. Signal crayfish dominated the samples at 98.5% of the specimens caught. The crayfish occurred at depths of 1-10 m. The mean total body length of the male and female signal crayfish (TL) was 99.5 ± 17.8 mm and 96.5 ± 11.7 mm, respectively, while the average body weight (BW) was 38.7 ± 24.9 g and 26.8 ± 9.5, respectively. Chelae were damaged in 4.5% of the individuals. Fishing efficiency (catch per unit effort – CPUE) was 0.96 crayfish trap−1 night−1. Selected characteristics of the population and of individual signal crayfish from Lake Hańcza were compared with those of the two closest neighboring populations of this species in lakes Mauda and Pobłędzie. The confirmed occurrence of the relatively large signal crayfish population in Lake Hańcza excludes this lake as a possible site for native noble crayfish (Astacus astacus L.) restoration. crayfish Pacifastacus leniusculus Lake Hańcza Orconectes limosus co-existence Aquaculture. Fisheries. Angling Chybowski Łucjan verfasserin aut In Archives of Polish Fisheries Sciendo, 2011 26(2018), 2, Seite 141-147 (DE-627)558046711 (DE-600)2407822-0 20836139 nnns volume:26 year:2018 number:2 pages:141-147 https://doi.org/10.2478/aopf-2018-0015 kostenfrei https://doaj.org/article/c278ba7e44d4409186786e9b44063ef2 kostenfrei http://www.degruyter.com/view/j/aopf.2018.26.issue-2/aopf-2018-0015/aopf-2018-0015.xml?format=INT kostenfrei https://doaj.org/toc/2083-6139 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 26 2018 2 141-147 |
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Ulikowski Dariusz Chybowski Łucjan |
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lake hańcza – a new site for signal crayfish (pacifastacus leniusculus dana) occurrence in poland |
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SH1-691 |
title_auth |
Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland |
abstract |
Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus Dana), which is a new species for this lake. Signal crayfish dominated the samples at 98.5% of the specimens caught. The crayfish occurred at depths of 1-10 m. The mean total body length of the male and female signal crayfish (TL) was 99.5 ± 17.8 mm and 96.5 ± 11.7 mm, respectively, while the average body weight (BW) was 38.7 ± 24.9 g and 26.8 ± 9.5, respectively. Chelae were damaged in 4.5% of the individuals. Fishing efficiency (catch per unit effort – CPUE) was 0.96 crayfish trap−1 night−1. Selected characteristics of the population and of individual signal crayfish from Lake Hańcza were compared with those of the two closest neighboring populations of this species in lakes Mauda and Pobłędzie. The confirmed occurrence of the relatively large signal crayfish population in Lake Hańcza excludes this lake as a possible site for native noble crayfish (Astacus astacus L.) restoration. |
abstractGer |
Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus Dana), which is a new species for this lake. Signal crayfish dominated the samples at 98.5% of the specimens caught. The crayfish occurred at depths of 1-10 m. The mean total body length of the male and female signal crayfish (TL) was 99.5 ± 17.8 mm and 96.5 ± 11.7 mm, respectively, while the average body weight (BW) was 38.7 ± 24.9 g and 26.8 ± 9.5, respectively. Chelae were damaged in 4.5% of the individuals. Fishing efficiency (catch per unit effort – CPUE) was 0.96 crayfish trap−1 night−1. Selected characteristics of the population and of individual signal crayfish from Lake Hańcza were compared with those of the two closest neighboring populations of this species in lakes Mauda and Pobłędzie. The confirmed occurrence of the relatively large signal crayfish population in Lake Hańcza excludes this lake as a possible site for native noble crayfish (Astacus astacus L.) restoration. |
abstract_unstemmed |
Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus Dana), which is a new species for this lake. Signal crayfish dominated the samples at 98.5% of the specimens caught. The crayfish occurred at depths of 1-10 m. The mean total body length of the male and female signal crayfish (TL) was 99.5 ± 17.8 mm and 96.5 ± 11.7 mm, respectively, while the average body weight (BW) was 38.7 ± 24.9 g and 26.8 ± 9.5, respectively. Chelae were damaged in 4.5% of the individuals. Fishing efficiency (catch per unit effort – CPUE) was 0.96 crayfish trap−1 night−1. Selected characteristics of the population and of individual signal crayfish from Lake Hańcza were compared with those of the two closest neighboring populations of this species in lakes Mauda and Pobłędzie. The confirmed occurrence of the relatively large signal crayfish population in Lake Hańcza excludes this lake as a possible site for native noble crayfish (Astacus astacus L.) restoration. |
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title_short |
Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland |
url |
https://doi.org/10.2478/aopf-2018-0015 https://doaj.org/article/c278ba7e44d4409186786e9b44063ef2 http://www.degruyter.com/view/j/aopf.2018.26.issue-2/aopf-2018-0015/aopf-2018-0015.xml?format=INT https://doaj.org/toc/2083-6139 |
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Chybowski Łucjan |
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558046711 |
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SH - Aquaculture, Fisheries, Angling |
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10.2478/aopf-2018-0015 |
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up_date |
2024-07-03T20:53:19.843Z |
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