Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis
Sphaeromatid isopods, such as Dynamene, are common and abundant members of the invertebrate fauna of littoral and shallow sublittoral substrates. Six species of Dynamene occur in the northern hemisphere. Only two species exist outside this range, in Australia. The distribution of the various species...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2016-11-01
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| Series: | ZooKeys |
| Online Access: | http://zookeys.pensoft.net/articles.php?id=10240 |
| _version_ | 1818764990005379072 |
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| author | Pedro E. Vieira Henrique Queiroga Filipe O. Costa David M. Holdich |
| author_facet | Pedro E. Vieira Henrique Queiroga Filipe O. Costa David M. Holdich |
| author_sort | Pedro E. Vieira |
| collection | DOAJ |
| description | Sphaeromatid isopods, such as Dynamene, are common and abundant members of the invertebrate fauna of littoral and shallow sublittoral substrates. Six species of Dynamene occur in the northern hemisphere. Only two species exist outside this range, in Australia. The distribution of the various species in the NE Atlantic-Black Sea axis has been controversial due to the difficulty in the identification of the different species. This has led to inaccurate records of their distribution, ultimately generating uncertain or faulty assessments on the biodiversity of these habitats. An update and a clarification about the distribution of this genus is therefore in order. In this study, we describe the distribution of Dynamene species in the light of new records from the NE Atlantic Ocean and its associated islands, and the Mediterranean, Black and Red Seas, and from re-examination of museum and several authors’ personal collections. Based on these observations, we extend the northern and southern limits of D. bidentata (Adams); the western and southern limits of D. magnitorata Holdich; the northern, eastern and western limits of D. edwardsi (Lucas); and the eastern and western limits of D. bifida Torelli. The range of Dynamene tubicauda Holdich is extended, but is still only known from the eastern Mediterranean. We also clarify the synonymy of D. torelliae Holdich with D. bicolor (Rathke), and the occurrence of D. bicolor in the Black Sea. New distribution maps of the six Dynamene species are presented. Illustrated keys to the adult males and females of the northern hemisphere species are provided. |
| first_indexed | 2024-12-18T08:10:58Z |
| format | Article |
| id | doaj.art-ee2f02de5dd3418d9b40b3acfa879b65 |
| institution | Directory Open Access Journal |
| issn | 1313-2989 1313-2970 |
| language | English |
| last_indexed | 2024-12-18T08:10:58Z |
| publishDate | 2016-11-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | ZooKeys |
| spelling | doaj.art-ee2f02de5dd3418d9b40b3acfa879b652022-12-21T21:14:54ZengPensoft PublishersZooKeys1313-29891313-29702016-11-0163512910.3897/zookeys.635.1024010240Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axisPedro E. Vieira0Henrique Queiroga1Filipe O. Costa2David M. Holdich3Universidade de AveiroUniversidade de AveiroUniversidade do MinhoUnaffiliatedSphaeromatid isopods, such as Dynamene, are common and abundant members of the invertebrate fauna of littoral and shallow sublittoral substrates. Six species of Dynamene occur in the northern hemisphere. Only two species exist outside this range, in Australia. The distribution of the various species in the NE Atlantic-Black Sea axis has been controversial due to the difficulty in the identification of the different species. This has led to inaccurate records of their distribution, ultimately generating uncertain or faulty assessments on the biodiversity of these habitats. An update and a clarification about the distribution of this genus is therefore in order. In this study, we describe the distribution of Dynamene species in the light of new records from the NE Atlantic Ocean and its associated islands, and the Mediterranean, Black and Red Seas, and from re-examination of museum and several authors’ personal collections. Based on these observations, we extend the northern and southern limits of D. bidentata (Adams); the western and southern limits of D. magnitorata Holdich; the northern, eastern and western limits of D. edwardsi (Lucas); and the eastern and western limits of D. bifida Torelli. The range of Dynamene tubicauda Holdich is extended, but is still only known from the eastern Mediterranean. We also clarify the synonymy of D. torelliae Holdich with D. bicolor (Rathke), and the occurrence of D. bicolor in the Black Sea. New distribution maps of the six Dynamene species are presented. Illustrated keys to the adult males and females of the northern hemisphere species are provided.http://zookeys.pensoft.net/articles.php?id=10240 |
| spellingShingle | Pedro E. Vieira Henrique Queiroga Filipe O. Costa David M. Holdich Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis ZooKeys |
| title | Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis |
| title_full | Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis |
| title_fullStr | Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis |
| title_full_unstemmed | Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis |
| title_short | Distribution and species identification in the crustacean isopod genus Dynamene Leach, 1814 along the North East Atlantic-Black Sea axis |
| title_sort | distribution and species identification in the crustacean isopod genus dynamene leach 1814 along the north east atlantic black sea axis |
| url | http://zookeys.pensoft.net/articles.php?id=10240 |
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