Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)

Eurytemora lacustris (Poppe, 1887) is a stenothermic glacial relict whose narrow environmental requirements make it an indicator species for good ecological conditions. The primary threats to this species are eutrophication and global warming. Many authors have described E. lacustris in taxonomic ke...

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Main Authors: Łukasz Sługocki, Anna Rymaszewska, Lucyna Kirczuk
Format: Article
Language:English
Published: Pensoft Publishers 2019-07-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/34259/download/pdf/
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author Łukasz Sługocki
Anna Rymaszewska
Lucyna Kirczuk
author_facet Łukasz Sługocki
Anna Rymaszewska
Lucyna Kirczuk
author_sort Łukasz Sługocki
collection DOAJ
description Eurytemora lacustris (Poppe, 1887) is a stenothermic glacial relict whose narrow environmental requirements make it an indicator species for good ecological conditions. The primary threats to this species are eutrophication and global warming. Many authors have described E. lacustris in taxonomic keys; however, its morphological description is unsatisfactory. Therefore, in this study, we aimed to review morphological characteristics of E. lacustris that were previously undescribed in the literature and to provide the molecular characteristics based on the two conservative mitochondrial genes: cytochrome c oxidase I (COI) and cytochrome b (cytb). The new record of E. lacustris indicates that it is a more widespread species than previously hypothesized. Width-to-length ratio of the last female endopod segment of legs indicates variation among the widely distributed species of the genus in Europe (i.e., E. lacustris, E. velox (Lilljeborg, 1853), and E. affinis (Poppe, 1880)). We also found variability of number of setae on the second segment of male endopod. Furthermore, our analysis confirms the occurrence of species in different than exclusively freshwater habitats.
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spelling doaj.art-c0e952561f694019a177f4e2c41eb0e22022-12-21T21:14:57ZengPensoft PublishersZooKeys1313-29891313-29702019-07-01864153310.3897/zookeys.864.3425934259Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)Łukasz Sługocki0Anna Rymaszewska1Lucyna Kirczuk2University of SzczecinUniversity of SzczecinUniversity of SzczecinEurytemora lacustris (Poppe, 1887) is a stenothermic glacial relict whose narrow environmental requirements make it an indicator species for good ecological conditions. The primary threats to this species are eutrophication and global warming. Many authors have described E. lacustris in taxonomic keys; however, its morphological description is unsatisfactory. Therefore, in this study, we aimed to review morphological characteristics of E. lacustris that were previously undescribed in the literature and to provide the molecular characteristics based on the two conservative mitochondrial genes: cytochrome c oxidase I (COI) and cytochrome b (cytb). The new record of E. lacustris indicates that it is a more widespread species than previously hypothesized. Width-to-length ratio of the last female endopod segment of legs indicates variation among the widely distributed species of the genus in Europe (i.e., E. lacustris, E. velox (Lilljeborg, 1853), and E. affinis (Poppe, 1880)). We also found variability of number of setae on the second segment of male endopod. Furthermore, our analysis confirms the occurrence of species in different than exclusively freshwater habitats.https://zookeys.pensoft.net/article/34259/download/pdf/
spellingShingle Łukasz Sługocki
Anna Rymaszewska
Lucyna Kirczuk
Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
ZooKeys
title Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
title_full Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
title_fullStr Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
title_full_unstemmed Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
title_short Insights into the morphology and molecular characterisation of glacial relict Eurytemora lacustris (Poppe, 1887) (Crustacea, Copepoda, Calanoida, Temoridae)
title_sort insights into the morphology and molecular characterisation of glacial relict eurytemora lacustris poppe 1887 crustacea copepoda calanoida temoridae
url https://zookeys.pensoft.net/article/34259/download/pdf/
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AT annarymaszewska insightsintothemorphologyandmolecularcharacterisationofglacialrelicteurytemoralacustrispoppe1887crustaceacopepodacalanoidatemoridae
AT lucynakirczuk insightsintothemorphologyandmolecularcharacterisationofglacialrelicteurytemoralacustrispoppe1887crustaceacopepodacalanoidatemoridae