Anders Jelmert

• Cand. scientiarum
• Institute of Marine Research in Norway

The Working Group on Ballast and Other Ship Vectors under the International Council for the Exploration of the Sea, Intergovernmental Oceanographic Commission of UNESCO, and Inter-national Maritime Organization (ICES/IOC/IMO WGBOSV) aims to provide scientific support to international decision-making to reduce the risk of spread and establishment of...

From 2020 to 2022, a number of experiments were carried out in the Skagerrak investigating trawl selection and survival of deep-water prawn (Pandalus borealis). The main objective was to quantify what proportion of the total selection occurs at the sea surface and to investigate associated post-escape survival rates. The survival of escapees likely...

Invasive alien species are a major worldwide driver of biodiversity change. The current study lists verified records of non-indigenous species (NIS) in European marine waters until 2020, with the purpose of establishing a baseline, assessing trends, and discussing appropriate threshold values for good environmental status (GES) according to the rel...

Ecosystem services (ES) are the benefits natural ecosystems provide to society, such as food provisioning, water supply, climate regulation and recreational benefits. Biological invasions are a major driver of global change, and several non-indigenous species (NIS) may alter key ecological feedbacks with ultimate consequences to ES, livelihoods and...

The goal of the ICES Working Group on the Introduction and Transfers of Marine Organisms (WGITMO) is to contribute to the ICES vision and mission by addressing specific science objectives related to the introduction, spread and impacts of non-indigenous marine species (NIS). The expert working group provides information and advice on the impacts of...

In recent decades, gobies have dispersed or introduced from the Ponto-Caspian region of eastern Europe in a westerly direction to North American and western European waters. By contrast, the naked goby, Gobiosoma bosc, is the only known gobiid species to have been introduced in an easterly direction from North American to western Europe. The potent...

Norway has the second longest coastline in the world, and it is challenging to monitor non-indigenous marine species (NIMS) along the entire shore including the Norwegian areas in the Barents Sea and along Svalbard. There is currently no national program for such monitoring, however some activity is taking place on specific species and organism gro...

Evaluating methods for a national monitoring program

The threat posed by invasive non-native species worldwide requires a global approach to identify which introduced species are likely to pose an elevated risk of impact to native species and ecosystems. To inform policy, stakeholders and management decisions on global threats to aquatic ecosystems, 195 assessors representing 120 risk assessment area...

Operation coastal cod - Knowledge for place-based ecosystem restoration in Færder- and Ytre Hvaler national parks. ==================================================================== https://hdl.handle.net/11250/2725009 ==================================================================== High fishing pressure over the last 100 years and technolo...

Summary of a large ecological quantitative impact assessment for alien species in Norway. Additional information and data repository: Sandvik H et al (2020) Data from: Ecological impact assessments of alien species in Norway. Dryad Digital Repository, https://doi.org/10.5061/dryad.8sf7m0cjc

1 . Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in local biodiversity and ecosystem functioning, and, ultimately, to biotic homogenisation. 2 . We risk‐assessed all alien plants, a...

We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter constitute c. 3% of all species known to be stably reproducing in Norway. These figures are higher than expected from Norway’s latitu...

The Working Group on the Introductions and Transfers of Marine Organisms (WGITMO) has contributed several major achievements to the ICES vision, including the first ICES Viewpoint on Biofouling and its source document, two Cooperative Research Reports, and numerous pub-lications related to ToRs, and the continued population of the AquaNIS database....

Climate change and increased anthropogenic activities are expected to elevate the potential of introducing nonindigenous species (NIS) into the Arctic. Yet, the knowledge base needed to identify gaps and priorities for NIS research and management is limited. Here, we reviewed primary introduction events to each ecoregion of the marine Arctic realm...

Arctic Ocean Acidification: update of chemical changes

Antimicrobial resistance (AMR) is recognised as one of the greatest public health concerns of our time. The development of AMR occurs in nature as a defence by microbes against naturally occurring antimicrobials. However, the selective pressure, generated by the use of antimicrobial agents in human and veterinary medicine, livestock and plant produ...

The calyptraeid gastropod Crepidula fornicata is native to the eastern coast of the United States but has now become an extremely successful invader along much of the European coastline. As the northern limit of its spread is thought to be determined by an inability of adults to tolerate prolonged exposure to low winter temperatures, this study sou...

English: The institute of Marine Research have surveyed the kelp vegetation, before and after kelp (Laminaria hyperborea) harvesting in southern parts of Nordland county in 2013-2016. Survey stations included both kelp harvested areas and nearby reference areas, and was performed by underwater video. In addition, kelp plants were collected from pri...

It seems unlikely that the Australian red claw clayfish will establish reproductive populations under Norwegian climate conditions, but hitchhiker organisms and infectious agents could potentially follow the import, and unless managed, may pose risks to biodiversity and aquatic animal health. This is the conclusion in a risk assessment from the Nor...

The Pacific oyster Crassostrea gigas has recently expanded its range in Scandinavia. The expansion is presumably a result of northwards larval drift. Massive settlements were recorded in many areas along the Swedish west coast and southern Norway in 2013 and 2014. After the spawning season in 2014, the temperature of the surface water peaked at 24−...

Several decades of research on invasive marine species have yielded a broad understanding of the nature of species invasion mechanisms and associated threats globally. However, this is not true of the Arctic, a region where ongoing climatic changes may promote species invasion. Here, we evaluated risks associated with non‐indigenous propagule loads...

The Suez Canal is one of the most important waterways in the world – during the last year 17,148 ships passed through the Canal – reducing emissions, saving time, and operating costs to shippers. The rapid increase in ship size from the " Post-Suezmax " (> 12,000 TEU) to the latest container vessels (> 19,000 TEU) now requires enlargements of port...

Assessment of the ecological and economic/societal impacts of the introduction of non-indigenous species (NIS) is one of the primary focus areas of bioinvasion science in terrestrial and aquatic environments, and is considered essential to management. A classification system of NIS, based on the magnitude of their environmental impacts, was recentl...

The North American bivalve mollusc Ensis directus (Conrad, 1843) (Bivalvia, Pharidae) is native to the Northwest Atlantic coasts from southern Labrador to northern Florida (Bousfield, 1960; Theroux and Wigley, 1983; Swennen et al., 1985; Abbott and Morris, 2001; Turgeon et al., 2009; Vierna et al., 2013). This species has been introduced outside it...

''Egypt to build new Suez canal… 'This giant project will be the creation of a new Suez canal parallel to the current channel' said Mohab Mamish, the chairman of the Suez Canal Authority, in a televised speech.''-build-new-suez-canal, viewed August 13, 2014). This is ominous news. Expected to double the capacity of the Suez Canal, the expansion is...

AimAnticipated changes in the global ocean climate will affect the vulnerability of marine ecosystems to the negative effects of non-indigenous species (NIS). In the Arctic, there is a need to better characterize present and future marine biological introduction patterns and processes. We use a vector-based assessment to estimate changes in the vul...

AS), eblanda@ruc.dk (EB), torjan.bodvin@imr.no (TB), jdavids@ruc.dk (JKD), lfj@fimus.dk (LFJ), tholmh@ruc.dk (THHH), anders.jelmert@imr.no (AJ), susanne.lindegarth@marecol.gu.se (SL), stein.mortensen@imr.no (SM), frithjof.moy@imr.no (FEM), pnielsen@bio.ku.dk (PN), Pia.norling@niva.no (PN), carlo_nyberg@hotmail.com (CN), htc@aqua.dtu.dk (HTC), bvism...

Adverse effects of invasive alien species (IAS), or biological pollution, is an increasing problem in marine coastal waters, which remains high on the environmental management agenda. All maritime countries need to assess the size of this problem and consider effective mechanisms to prevent introductions, and if necessary and where possible to moni...

Until the last decade it was assumed that most marine species have pronounced gene flow over vast areas, largely because of their potential for dispersal during early life stages. However, recent genetic, modeling, and field studies have shown that marine populations may be structured at scales that are inconsistent with extensive dispersal of eggs...

This is a short version of the Joint Norwegian-Russian environmental status 2008 report on the Barents Sea Ecosystem. It is written to provide an easy accessible summary of the main findings in the full report, and is aimed at groups such as decision makers, professionals involved in developing ecosystem-based management and journalists.

This report is a co-operation project between the Joint Russian-Norwegian Commission on Environmental Cooperation and the Joint Russian-Norwegian Fisheries Commission. The initiative to the report was taken by the environmental commission and was later acknowledged by the fisheries commission. Formally, it is the realisation of Project no. 1 of the...

There is an increasing need for energy. Considerable efforts are being made to develop environmentally friendly energy sources. Generating electric energy using wind turbines is one of the methods that has gained widespread, international acceptance. In Norway wind turbine farms are established as well, and more farms are planned for the coming yea...

The uptake, metabolism, tissue distribution and excretion of four sulphonamides and trimethoprim following bath treatment of Atlantic halibut, Hippoglossus hippoglossus L., were studied. Bath treatment using a concentration of 200 μg ml–1 for 72 h resulted in peak sulphadimidine concentrations in muscle and abdominal organ homogenates of 32·6 and 6...

The abundance and diversity of species in ballast water, a recognised vector for the accidental introduction of nonindigenous organisms, has been examined through many studies around the world over the last 25 years. The results of European research activities are summarised in this contribution by outlining the objectives of some of these studies,...

The abundance and diversity of species in ballast water, a recognised vector for the accidental introduction of nonindigenous organisms, has been examined through many studies around the world over the last 25 years. The results of European research activities are summarised in this contribution by outlining the objectives of some of these studies,...

It is apparent that no single or simple universal solution presently exists for shipboard treatment or management to prevent the transfer of viable non-native organisms in ballast water. Only a very limited number of the treatment options listed below has been shown to be 100% effective (and only for some specific organisms in some cases), environm...

Ballast water tanks in ships are today often corrosion-protected by sacrificial zinc anodes in addition to protective coating. Dissolved zinc has been found to be toxic to early life stages of many freshwater and marine organisms. We have therefore examined if the zinc released into ballast water could reach concentrations previously known to affec...

Effects of an iodophor (Buffodine™) on eggs and larvae of Atlantic halibut Hippoglossus hippoglossus were investigated. Eggs were treated for 10 min with various concentrations of Buffodine and at different developmental stages from 4 h to 12 d after fertilization. Survival of the yolk-sac larvae was recorded at 37 d after hatching; survivors were...