FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater
Abstract Syncarida are malacostracan crustaceans that live exclusively in fresh and brackish waters all over the world. With the exception of a few Anaspidacea that live in free freshwater (streams, ponds, superficial lakes and caves) the great majority inhabit the interstitial groundwater (they are...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.9443 http://decapoda.nhm.org/pdfs/27700/27700.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.555.9443 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.555.9443 2023-05-15T13:59:20+02:00 FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater Springer Science+business Media B. V The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.9443 http://decapoda.nhm.org/pdfs/27700/27700.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.9443 http://decapoda.nhm.org/pdfs/27700/27700.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://decapoda.nhm.org/pdfs/27700/27700.pdf text ftciteseerx 2016-01-08T11:46:42Z Abstract Syncarida are malacostracan crustaceans that live exclusively in fresh and brackish waters all over the world. With the exception of a few Anaspidacea that live in free freshwater (streams, ponds, superficial lakes and caves) the great majority inhabit the interstitial groundwater (they are stygobi-ont that live in groundwater in the wide sense). The Syncarida lack a carapace; have compound eyes (absent in subterranean taxa); the range in body size from 0.55 to 55 mm long and are more or less cylindrical in body shape; they have separate sexes with no free-swimming larval stage. Only the epigean Anaspidaea have coloration. Fossil Syncarida com-prises two orders: Palaeocaridacea (five families, 15 genera and 20 species from Europe, USA and Brazil) and Anaspidacea (two monospecific genera from Australia). Anaspidacea also has present-day repre-sentatives: five families with 12 genera and 21 living species that live only in the Southern Hemisphere. Bathynellacea, the third order of Syncarida, with no fossil representatives, has two families, with 66 genera and 219 species that are widely distributed throughout all continents, except Antarctica. Since 1950, new species of Bathynellacea have been discovered with regularity, however many countries remain poorly sampled. The accumulation curves for Parabathynellidae, Bathynellidae and the whole of Bathynellacea demostrate that new species descrip-tions continue to accumulate at a rate that is well beyond the ‘‘plateau’ ’ level. Text Antarc* Antarctica Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Abstract Syncarida are malacostracan crustaceans that live exclusively in fresh and brackish waters all over the world. With the exception of a few Anaspidacea that live in free freshwater (streams, ponds, superficial lakes and caves) the great majority inhabit the interstitial groundwater (they are stygobi-ont that live in groundwater in the wide sense). The Syncarida lack a carapace; have compound eyes (absent in subterranean taxa); the range in body size from 0.55 to 55 mm long and are more or less cylindrical in body shape; they have separate sexes with no free-swimming larval stage. Only the epigean Anaspidaea have coloration. Fossil Syncarida com-prises two orders: Palaeocaridacea (five families, 15 genera and 20 species from Europe, USA and Brazil) and Anaspidacea (two monospecific genera from Australia). Anaspidacea also has present-day repre-sentatives: five families with 12 genera and 21 living species that live only in the Southern Hemisphere. Bathynellacea, the third order of Syncarida, with no fossil representatives, has two families, with 66 genera and 219 species that are widely distributed throughout all continents, except Antarctica. Since 1950, new species of Bathynellacea have been discovered with regularity, however many countries remain poorly sampled. The accumulation curves for Parabathynellidae, Bathynellidae and the whole of Bathynellacea demostrate that new species descrip-tions continue to accumulate at a rate that is well beyond the ‘‘plateau’ ’ level. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Springer Science+business Media B. V |
spellingShingle |
Springer Science+business Media B. V FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
author_facet |
Springer Science+business Media B. V |
author_sort |
Springer Science+business Media B. V |
title |
FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
title_short |
FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
title_full |
FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
title_fullStr |
FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
title_full_unstemmed |
FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of syncarids (Syncarida; Crustacea) in freshwater |
title_sort |
freshwater animal diversity assessment global diversity of syncarids (syncarida; crustacea) in freshwater |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.9443 http://decapoda.nhm.org/pdfs/27700/27700.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://decapoda.nhm.org/pdfs/27700/27700.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.9443 http://decapoda.nhm.org/pdfs/27700/27700.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766267869589405696 |