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Sampling native and non-native mobile epifauna with baited traps and habitat collectors – Port of Gdynia case study (southern Baltic Sea, Poland)

Monika Normant-Saremba
Monika Normant-Saremba
, 
Joanna Hegele-Drywa
Joanna Hegele-Drywa
 und 
Lena Marszewska
Lena Marszewska
   | 25. Sept. 2020
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Article Category: Short communication
Online veröffentlicht: 25. Sept. 2020
Seitenbereich: 319 - 327
Eingereicht: 12. März 2020
Akzeptiert: 04. Apr. 2020
DOI: https://doi.org/10.1515/ohs-2020-0028
© 2020 Faculty of Oceanography and Geography, University of Gdańsk, Poland
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Types of traps used for mobile epifauna sampling from May to October 2014 in the Port of Gdynia: A – Chinese box trap (BT1), B – Gee’s Minnow trap (BT2), C – crab condo (HC1) and D – habitat crate (HC2)
Types of traps used for mobile epifauna sampling from May to October 2014 in the Port of Gdynia: A – Chinese box trap (BT1), B – Gee’s Minnow trap (BT2), C – crab condo (HC1) and D – habitat crate (HC2)

Figure 2

Abundance (bar) and the number (triangle) of mobile epifauna species collected in the outer part of the Port of Gdynia in 2014 by multiple deployment (n) of baited traps (BT1 + BT2) from July to October 2014. Non-indigenous species are marked in bold.
Abundance (bar) and the number (triangle) of mobile epifauna species collected in the outer part of the Port of Gdynia in 2014 by multiple deployment (n) of baited traps (BT1 + BT2) from July to October 2014. Non-indigenous species are marked in bold.

Mobile epifauna species collected in the Port of Gdynia by different types of traps (symbols are explained in the text), from May to October 2014. “+” – present, n – the number of deployments, non-indigenous species are marked in bold

Species Baited trap Habitat collector
BT1n = 7 BT2n = 7 HC1n = 2 HC2n = 2
Crustacea
Neomysis integer (Leach, 1814) +
Praunus fl exuosus (Müller, 1776) +
Heterotanais oerstedii (Krøyer, 1842) +
Sinelobus vanhaareni Bamber, 2014 +
Idotea chelipes (Pallas, 1766) + + + +
Jaera albifrons Leach, 1814 + +
Lekanesphaera rugicauda (Leach, 1814) +
Apocorophium lacustre (Vanhöffen, 1911) + +
Leptocheirus pilosus Zaddach, 1844 + +
Melita niti da Smith, 1873 + +
Gammarus zaddachi Sexton, 1912 + +
Gammarus salinus Spooner, 1947 +
Gammarus ti grinus Sexton, 1939 + +
Palaemon adspersus Rathke, 1837 + + +
Palaemon elegans Rathke, 1837 + +
Rhithropanopeus harrisii (Gould, 1841) + + +
Gastropoda
Tenellia adspersa (Nordmann, 1845) +
Acti nopterygii
Neogobius melanostomus (Pallas, 1814) + + + +
Nerophis ophidion (Linnaeus, 1758) + + +
Number of all species 5 6 12 15
Number of NIS 2 3 4 5

The number of species and total observed abundance of mobile epifauna collected in the inner part of the Port of Gdynia by different types of traps (symbols are explained in the text), from May to July 2014. Non-indigenous species are marked in bold, n – number of deployments.

Species number/abundance June–July May–July
BT1n = 2 BT2n = 2 HC1n = 1 BT1n = 3 BT2n = 3 HC2n = 1
Number of all species 3 5 9 3 5 10
Number of NIS 1 1 2 1 1 4
Abundance of all species 16 8 35 18 8 87
Abundance of NIS 1 2 9 1 2 20
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