DNA barcoding of Cirripedia larvae reveals new knowledge on their biology in Arctic coastal ecosystems

Katarzyna Walczyńska , Janne E. Søreide , Agata Weydmann-Zwolicka , Marta Ronowicz , Tove M. Gabrielsen

Abstract

Pelagic larvae of benthic organisms comprise a substantial part of the coastal Arctic zooplankton community in spring–summer. We studied the timing, growth, and pelagic duration of Cirripedia larvae in Adventfjorden, a high-Arctic fjord in Spitsbergen, Svalbard. Two distinct abundance peaks were found: one in early May (~ 25.000 ind. m−3) and another one in late May (~ 35,580 ind m−3). DNA barcoding based on the COI gene was used to identify the barnacle larvae to species. Whereas both Balanus balanus and Semibalanus balanoides were present, the first one dominated (50–100%) the barnacle abundance. High resolution sampling and size measurements of Cirripedia larvae revealed that these larvae most likely originated from a single spawning event. Development of the larvae suggested a pelagic residence time of roughly 2 months for B. balanus and at least 1 month for S. balanoides in the Arctic. Long pelagic residence time, large potential for biofouling on ships and larger plastic debris, combined with the disappearance of landfast sea ice and less ice scouring opens up new opportunities for barnacles to colonize the high-Arctic littoral zone. In a future warmer Arctic, we therefore expect establishment of new, more temperate Cirripedia species in Svalbard.
Author Katarzyna Walczyńska (FOG / IO / DMPR)
Katarzyna Walczyńska,,
- Division of Marine Plankton Research
, Janne E. Søreide
Janne E. Søreide,,
-
, Agata Weydmann-Zwolicka (FOG / IO / DMPR)
Agata Weydmann-Zwolicka,,
- Division of Marine Plankton Research
, Marta Ronowicz
Marta Ronowicz,,
-
, Tove M. Gabrielsen
Tove M. Gabrielsen,,
-
Journal seriesHydrobiologia, ISSN 0018-8158, (A 30 pkt)
Issue year2019
Vol837
No1
Pages149-159
Publication size in sheets0.9
Keywords in Englishmeroplankton, barnacles, Balanus, marine benthic invertebrates, molecular identification, development
ASJC Classification1104 Aquatic Science
DOIDOI:10.1007/s10750-019-3967-y
URL https://doi.org/10.1007/s10750-019-3967-y
Languageen angielski
LicenseOther; published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)30
ScoreMinisterial score = 30.0, 16-07-2019, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 16-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.078; WoS Impact Factor: 2017 = 2.165 (2) - 2017=2.444 (5)
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