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Oliveira, D. R., Granhag, L. 2020.

Today, ship hull fouling is managed through fouling-control coatings, complemented with in-water cleaning. During cleaning, coating damage and wear must be avoided, for maximum coating lifetime and reduced antifoulant release. When possible, cleaning should target early stages of fouling, using minimal forces. However, such forces, and their effects on coatings, have not yet been fully quantified. In this one-year study, minimal cleaning forces were determined using a newly-designed immersed waterjet. The results show that bi-monthly/monthly cleaning, with maximum wall shear stress up to ∼1.3 kPa and jet stagnation pressure ∼0.17 MPa, did not appear to cause damage or wear on either the biocidal antifouling (AF) or the biocide-free foul-release (FR) coatings. The AF coating required bi-monthly cleanings to keep fouling to incipient slime (time-averaged results), while the FR coating had a similar fouling level even without cleaning. The reported forces may be used in matching cleaning parameters to the adhesion strength of the early stages of fouling.

Publication: https://www.tandfonline.com/doi/full/10.1080/08927014.2020.1762079

Maiju Lehtiniemi, Okko Outinen, Riikka Puntila-Dodd https://www.sciencedirect.com/science/article/pii/S0301479720305405

Read more: Citizen science provides added value in the monitoring for coastal non-indigenous species

Tsiamis K, Azzurro E, Bariche M, Çinar ME, Crocetta F, De Clerck O, Galil B, Gómez, F, Hoffman R, Jensen KR, Kamburska L, Langeneck J, Langer MR, Levitt-Barmats Y, Lezzi M, Marchini A, Occhipinti-Ambrogi A, Ojaveer H, Piraino S, Shenkar N, Yankova M, Zenetos A, Žuljevic A, Cardoso AC 2020. 

Prioritizing marine invasive alien species in the European Union through horizon scanning.

Aquatic Conserv: Mar Freshw Ecosyst. 2020; 1–52. https://doi.org/10.1002/aqc.3267

Read more: Prioritizing marine invasive alien species in the European Union through horizon scanning

Solovjova S, Samuilovienė A, Srėbalienė G, Minchin D, Olenin S. 2019.
Oceanologia 61: 341-349. [Publication]
The gulf wedge clam, common rangia Rangia cuneata, with a native origin in the Gulf of Mexico has spread to north European brackish and freshwaters. This semitropical species is able to survive in conditions of low winter temperatures in boreal environment of the Baltic Sea. Its expansion within lagoons and sheltered bays in the southern and eastern parts of the Baltic Sea appears to be with natural spread and its discontinuous distribution is likely to have been with shipping, either within ballast water or as settled stages transported with dredged material. In this account, we report on the occurrence of R. cuneata in Lithuanian waters. We compare habitats of the common rangia in the Curonian Lagoon and in the exposed coastal waters of the Baltic Sea.
Gollasch S, David M, Broeg K, Heitmüller S, Karjalainen M, Lehtiniemi M, Normant-Saremba M, Ojaveer H, Olenin S, Ruiz M, Helavuori M, Sala-Pérez M, Strake S. 2019.
Ocean & Coastal Management 183: 1-7.  [Publication]
The Ballast Water Management Convention adopted at the International Maritime Organization (IMO) allows exemptions from ballast water management requirements. These exemptions may be granted when a risk assessment results in an acceptable low risk scenario. IMO has adopted a guideline describing different risk assessment approaches (G7 Guidelines, 2017). One approach is a species-specific risk assessment in which so called target species (TS) become important. TS are species that meet specific criteria indicating that they may impair or damage the environment, human health, property or resources and they are defined for a specific port, State or biogeographic region. The guidelines continue to describe general TS selection criteria, which include the species relationship with ballast water as a transport vector, their impact type and severeness, evidence of prior introduction(s), and its current distribution. However, the G7 Guidelines lack details how these criteria are to be defined.
Srėbalienė G, Olenin S, Minchin D, Narščius A. 2019. 
A comparison of impact and risk assessment methods based on the IMO Guidelines and EU invasive alien species risk assessment frameworks.
PeerJ 7:e6965 [Publication]
A comparative analysis of two risk assessment (RA) frameworks developed to support the implementation of the international Ballast Water Management Convention (BWMC) and European Regulation on Invasive Alien Species (IAS) was performed. This analysis revealed both differences and similarities between the IMO Risk Assessment Guidelines (IMO, 2007) and EU Regulation supplement on RA of IAS (EU, 2018) in RA approaches, key principles, RA components and categories of IAS impacts recommended for assessment.
 

Oliveira, D. R., Larsson, L. & Granhag, L. 2019.
Towards an absolute scale for adhesion strength of ship hull microfouling. Biofouling, DOI: 10.1080/08927014.2019.1595602

[Publication]

Minchin D, Arbačiauskas K, Daunys D, Ezhova E, Grudule N, Kotta J, Molchanova N, Olenin S, Višinskienė G, Strake S (2019)

Rapid expansion and facilitating factors of the Ponto-Caspian invader Dikerogammarus villosus within the eastern Baltic Sea. Aquatic Invasions 14(2): 165–181 

[Publication]

Liversage, K., Kotta, J., Aps, R., Fetissov, M., Nurkse, K., Orav-Kotta, H., Rätsep, M., Forsström, T., Fowler, A., Lehtiniemi, M., Normant-Saremba, M., Puntila-Dodd, R., Arula, T., Hubel, K. & Ojaveer, H. 2019.

Knowledge to decision in dynamic seas: Methods to incorporate non-indigenous species into cumulative impact assessments for maritime spatial planning. Science of the Total Environment 658: 1452–1464.
 
[Publication]

Outinen, O., Forsström, T., Yli-Rosti, J., Vesakoski, O. & Lehtiniemi, M. 2019.

Monitoring of sessile and mobile epifauna – Considerations for non-indigenous species. Marine Pollution Bulletin 141: 332–342.


[Publication]

Brzana R., Marszewska L., Normant-Saremba M., Błażewicz M., 2019. 

Non-indigenous tanaid Sinelobus vanhaareni Bamber, 2014 in the Polish coastal waters – an example of successful invader. Oceanological and Hydrobiological Studies 48: 76–84.
 
[Publication]

Konstantinos Tsiamis, Andreas Palialexis, Kremena Stefanova, Živana Ničević Gladan, Sanda Skejić, Marija Despalatović, Ivan Cvitković, Branko Dragičević, Jakov Dulčić, Olja Vidjak, Natalia Bojanić, Ante Žuljević, Marilena Aplikioti, Marina Argyrou, Marios Josephides, Nikolas Michailidis, Hans H.Jakobsen, Peter A.Staehr, Henn Ojaveer, Maiju Lehtiniemi, Cécile Massé, Argyro Zenetos, Luca Castriota, Silvia Livi, Cristina Mazziotti, Patrick J.Schembri, Julian Evans, Angela G.Bartolo, Saa Henry Kabuta, Sander Smolders, Edo Knegtering, Arjan Gittenberger Piotr Gruszka, Wojciech Kraśniewski, Cátia Bartilotti, Miriam Tuaty-Guerra, João Canning-Clode, Ana C.Costa, Manuela I.Parente, Andrea Z.Botelho, Joana Micael, Joana V.Miodonski, Gilberto P.Carreir, Vera Lopes, Paula Chainho, Carmen Barberá, Rahmat Naddafi, Ann-Britt Florin, Peter Barry, Paul D.Stebbing, Ana Cristina Cardoso, 2019. 

Marine Pollution Bulletin 145: 429-435.

Non-indigenous species refined national baseline inventories: A synthesis in the context of the European Union's Marine Strategy Framework Directive
 
[Publication]