Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida)
A large collection of Pseudotanaidae was obtained during three international expeditions. Samples were taken from shelf areas down to the slope (213−2750 m) and from the abyss (4093–5780 m). In North Atlantic waters, six areas off Iceland (Irminger Basin, Iceland Basin, Norwegian Sea, Denmark Strait...
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ftunivlodzir:oai:dspace.uni.lodz.pl:11089/32160 2023-07-30T04:03:10+02:00 Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) Różnorodność i rozmieszczenie głębokowodnych Pseudotanaidae (Tanaidacea, Peracarida) Jakiel, Aleksandra Uniwersytet Łódzki, Wydział Biologii i Ochrony Środowiska, Katedra Zoologii Bezkręgowców aleksandra.jakiel@biol.uni.lodz.pl 2020 application/pdf http://hdl.handle.net/11089/32160 en eng http://hdl.handle.net/11089/32160 Attribution-NonCommercial-NoDerivatives 4.0 Międzynarodowe http://creativecommons.org/licenses/by-nc-nd/4.0/ Aleksandra Jakiel dispersion genetic connectivity diversity Pseudotanaidae Tanaidacea crustacea Atlantic Pacific PhD/Doctoral Dissertation 2020 ftunivlodzir 2023-07-07T06:47:57Z A large collection of Pseudotanaidae was obtained during three international expeditions. Samples were taken from shelf areas down to the slope (213−2750 m) and from the abyss (4093–5780 m). In North Atlantic waters, six areas off Iceland (Irminger Basin, Iceland Basin, Norwegian Sea, Denmark Strait, Iceland-Faroe Ridge, and Norwegian Channel) were investigated. In this sampling collection, Pseudotanaidae was the most numerous Tanaidacea family. Morphological identification revealed five species, for which the descriptions are given in Chapter 2. A large group of indistinguishable specimens, from a wide depth range and different areas was discriminated using morphometric methods. This allowed me to distinguish variation within one species (P. svavarssoni and complex cryptic species of P. svavarssoni). Another 13 new species were described from Central Pacific waters (Chapter 3). All the new taxa present restricted distributions and where found on a few closest stations. The high heterogeneity in the area reduced the spatial distribution of each taxa, but an increasing number of available niches has triggered diversity levels. The integrative taxonomy approach applied on the third studied area, the abyss of the Kurile-Kamchatka Trench, has allowed us to identify six new species. The homogeneity of the abyss in KKT provides a wide distribution of pseudotanaids, and the examined taxa of the KKT did not show limited distributions. This study was funded by Polish National Science Centre grants: UMO-2014/13/B/NZ8/04702 UMO-2016/13/B/NZ8/02495 Doctoral or Postdoctoral Thesis Denmark Strait Iceland Kamchatka North Atlantic Norwegian Sea University of Lodz Repository (RUŁ) Irminger Basin ENVELOPE(-36.000,-36.000,61.000,61.000) Norwegian Sea Pacific |
institution |
Open Polar |
collection |
University of Lodz Repository (RUŁ) |
op_collection_id |
ftunivlodzir |
language |
English |
topic |
dispersion genetic connectivity diversity Pseudotanaidae Tanaidacea crustacea Atlantic Pacific |
spellingShingle |
dispersion genetic connectivity diversity Pseudotanaidae Tanaidacea crustacea Atlantic Pacific Jakiel, Aleksandra Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
topic_facet |
dispersion genetic connectivity diversity Pseudotanaidae Tanaidacea crustacea Atlantic Pacific |
description |
A large collection of Pseudotanaidae was obtained during three international expeditions. Samples were taken from shelf areas down to the slope (213−2750 m) and from the abyss (4093–5780 m). In North Atlantic waters, six areas off Iceland (Irminger Basin, Iceland Basin, Norwegian Sea, Denmark Strait, Iceland-Faroe Ridge, and Norwegian Channel) were investigated. In this sampling collection, Pseudotanaidae was the most numerous Tanaidacea family. Morphological identification revealed five species, for which the descriptions are given in Chapter 2. A large group of indistinguishable specimens, from a wide depth range and different areas was discriminated using morphometric methods. This allowed me to distinguish variation within one species (P. svavarssoni and complex cryptic species of P. svavarssoni). Another 13 new species were described from Central Pacific waters (Chapter 3). All the new taxa present restricted distributions and where found on a few closest stations. The high heterogeneity in the area reduced the spatial distribution of each taxa, but an increasing number of available niches has triggered diversity levels. The integrative taxonomy approach applied on the third studied area, the abyss of the Kurile-Kamchatka Trench, has allowed us to identify six new species. The homogeneity of the abyss in KKT provides a wide distribution of pseudotanaids, and the examined taxa of the KKT did not show limited distributions. This study was funded by Polish National Science Centre grants: UMO-2014/13/B/NZ8/04702 UMO-2016/13/B/NZ8/02495 |
author2 |
Uniwersytet Łódzki, Wydział Biologii i Ochrony Środowiska, Katedra Zoologii Bezkręgowców aleksandra.jakiel@biol.uni.lodz.pl |
format |
Doctoral or Postdoctoral Thesis |
author |
Jakiel, Aleksandra |
author_facet |
Jakiel, Aleksandra |
author_sort |
Jakiel, Aleksandra |
title |
Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
title_short |
Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
title_full |
Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
title_fullStr |
Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
title_full_unstemmed |
Diversity and distribution of deep-sea Pseudotanaidae (Tanaidacea, Peracarida) |
title_sort |
diversity and distribution of deep-sea pseudotanaidae (tanaidacea, peracarida) |
publishDate |
2020 |
url |
http://hdl.handle.net/11089/32160 |
long_lat |
ENVELOPE(-36.000,-36.000,61.000,61.000) |
geographic |
Irminger Basin Norwegian Sea Pacific |
geographic_facet |
Irminger Basin Norwegian Sea Pacific |
genre |
Denmark Strait Iceland Kamchatka North Atlantic Norwegian Sea |
genre_facet |
Denmark Strait Iceland Kamchatka North Atlantic Norwegian Sea |
op_relation |
http://hdl.handle.net/11089/32160 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Międzynarodowe http://creativecommons.org/licenses/by-nc-nd/4.0/ Aleksandra Jakiel |
_version_ |
1772814104481759232 |