Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour
Four species of sturgeons appear in the Yugoslav part of the Danube River. Among them three are anadromous, beluga ( Huso huso ), Russian sturgeon ( Acipenser gueldenstaedtii ) and stellate sturgeon ( Acipenser stellatus ) and migrate to Danube from the Black Sea to spawn. Only sterlet ( Acipenser r...
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crwiley:10.1111/j.1095-8649.2003.216bf.x 2024-06-02T08:04:17+00:00 Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour Lenhardt, M. Cakic, P. Kolarevic, J. Gacic, Z. 2003 http://dx.doi.org/10.1111/j.1095-8649.2003.216bf.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.216bf.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.216bf.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 63, issue s1, page 252-252 ISSN 0022-1112 1095-8649 journal-article 2003 crwiley https://doi.org/10.1111/j.1095-8649.2003.216bf.x 2024-05-03T10:44:32Z Four species of sturgeons appear in the Yugoslav part of the Danube River. Among them three are anadromous, beluga ( Huso huso ), Russian sturgeon ( Acipenser gueldenstaedtii ) and stellate sturgeon ( Acipenser stellatus ) and migrate to Danube from the Black Sea to spawn. Only sterlet ( Acipenser ruthenus ) is exclusively freshwater. There are obvious differences between vernal and winter races of anadromous sturgeons, due to their different migratory patterns. Russian ichthyologist Berg (1934) claimed that there are two races (morphs) in the starlet population as well. This stimulated long discussion in Russian and Yugoslav literature, and it was the starting point for our research on sterlet in the Yugoslav part of the Danube River. Morphometric analysis was preformed on 159 individuals caught in Danube River among 1123 and 1173 km, on four localities during September and October 2002. Analysis included 24 morphological and 3 meristic characters. K‐means cluster analysis indicated existence of two different clusters (groups), one with 95 (59·75%) and other with 64 (40·25%) samples. Significant differences were found for preorbital, preoral and prebarbel length. Mean values (in % of head length) for first group were 50·13 ± 1·71, 57·61 ± 1·87, 39·74 ± 2·20 and for second group 53·50 ± 2·46, 62·07 ± 2·20 and 43·30 ± 2·08 respectively. Findings were confirmed by Principal Components & Classification Analysis. These results speak in favour of existence of two morphs in sterlet population, one with long and pointed rostrum (vernal) and other with short rostrum (winter). According to the literature that is probably influenced by different reproductive behaviour (time separation in spawning). Article in Journal/Newspaper Beluga Beluga* Wiley Online Library Journal of Fish Biology 63 s1 252 252 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Four species of sturgeons appear in the Yugoslav part of the Danube River. Among them three are anadromous, beluga ( Huso huso ), Russian sturgeon ( Acipenser gueldenstaedtii ) and stellate sturgeon ( Acipenser stellatus ) and migrate to Danube from the Black Sea to spawn. Only sterlet ( Acipenser ruthenus ) is exclusively freshwater. There are obvious differences between vernal and winter races of anadromous sturgeons, due to their different migratory patterns. Russian ichthyologist Berg (1934) claimed that there are two races (morphs) in the starlet population as well. This stimulated long discussion in Russian and Yugoslav literature, and it was the starting point for our research on sterlet in the Yugoslav part of the Danube River. Morphometric analysis was preformed on 159 individuals caught in Danube River among 1123 and 1173 km, on four localities during September and October 2002. Analysis included 24 morphological and 3 meristic characters. K‐means cluster analysis indicated existence of two different clusters (groups), one with 95 (59·75%) and other with 64 (40·25%) samples. Significant differences were found for preorbital, preoral and prebarbel length. Mean values (in % of head length) for first group were 50·13 ± 1·71, 57·61 ± 1·87, 39·74 ± 2·20 and for second group 53·50 ± 2·46, 62·07 ± 2·20 and 43·30 ± 2·08 respectively. Findings were confirmed by Principal Components & Classification Analysis. These results speak in favour of existence of two morphs in sterlet population, one with long and pointed rostrum (vernal) and other with short rostrum (winter). According to the literature that is probably influenced by different reproductive behaviour (time separation in spawning). |
format |
Article in Journal/Newspaper |
author |
Lenhardt, M. Cakic, P. Kolarevic, J. Gacic, Z. |
spellingShingle |
Lenhardt, M. Cakic, P. Kolarevic, J. Gacic, Z. Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
author_facet |
Lenhardt, M. Cakic, P. Kolarevic, J. Gacic, Z. |
author_sort |
Lenhardt, M. |
title |
Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
title_short |
Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
title_full |
Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
title_fullStr |
Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
title_full_unstemmed |
Morphometric recognition of two morphs in sterlet ( Acipenser ruthenus) population induced by different reproductive behaviour |
title_sort |
morphometric recognition of two morphs in sterlet ( acipenser ruthenus) population induced by different reproductive behaviour |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2003.216bf.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.216bf.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.216bf.x |
genre |
Beluga Beluga* |
genre_facet |
Beluga Beluga* |
op_source |
Journal of Fish Biology volume 63, issue s1, page 252-252 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2003.216bf.x |
container_title |
Journal of Fish Biology |
container_volume |
63 |
container_issue |
s1 |
container_start_page |
252 |
op_container_end_page |
252 |
_version_ |
1800748910388445184 |