2020
DOI: 10.3389/fmars.2020.00332
|View full text |Cite
|
Sign up to set email alerts
|

Influence of Riverine Input on Norwegian Coastal Systems

Abstract: Coastal ecosystems are of high ecological and socioeconomic importance and are strongly influenced by processes from land, sea, and human activities. In this study, we present physical, chemical, and biological observations over two consecutive years from three study regions along the Norwegian coast that represent a broad latitudinal gradient in catchment and oceanographic conditions (∼59-69 • N): outer Oslofjord/southern Norway, Runde/western Norway, and Malangen/northern Norway. The observations included ri… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
25
0

Year Published

2020
2020
2024
2024

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 37 publications
(25 citation statements)
references
References 49 publications
0
25
0
Order By: Relevance
“…The lack of widespread reductions in totP export is substantiated by long‐term records from rivers in Finland (Räike et al, 2020) and Norway (Skarbovik, Stalnacke, Kaste, & Austnes, 2014), and from marine recipients (Frigstad et al, 2020; Kuss et al, 2020). Our study implies that mitigation of P is more challenging than for N, because of more variation in sources (Kronvang et al, 2007), complexity of hydrological pathways (Mellander et al, 2018) and delays in responses to mitigation as a consequence of legacy pools of phosphorus in soils (Bol et al, 2018; Jeppesen et al, 2009) and lake sediments (Couture et al, 2018).…”
Section: Discussionmentioning
confidence: 98%
See 1 more Smart Citation
“…The lack of widespread reductions in totP export is substantiated by long‐term records from rivers in Finland (Räike et al, 2020) and Norway (Skarbovik, Stalnacke, Kaste, & Austnes, 2014), and from marine recipients (Frigstad et al, 2020; Kuss et al, 2020). Our study implies that mitigation of P is more challenging than for N, because of more variation in sources (Kronvang et al, 2007), complexity of hydrological pathways (Mellander et al, 2018) and delays in responses to mitigation as a consequence of legacy pools of phosphorus in soils (Bol et al, 2018; Jeppesen et al, 2009) and lake sediments (Couture et al, 2018).…”
Section: Discussionmentioning
confidence: 98%
“…Forestry is of particular interest to Sweden and Finland, both of which have a high percentage of productive forest and a large forestry sector (Verkerk et al, 2019). Agriculture is a dominant land use in Denmark and across the Nordic region, nutrient loadings from agriculture is a large concern for eutrophication of freshwater and marine ecosystems (Frigstad et al, 2020; Karlson, Rosenberg, & Bonsdorff, 2002). These waters are valuable natural resources and essential for Nordic societies, economies and human wellbeing as they provide multiple ecosystem services (Kronvang et al, 2008; Marttila et al, 2020; Ulen et al, 2007).…”
Section: Introductionmentioning
confidence: 99%
“…BGC-Argo floats are key platforms for the study of coastal systems characterized by high terrestrial input of carbon and nutrients, which could promote short-term fluctuations in primary productivity and oxygen levels, changes in pH, and coastal ocean acidification (Wallace et al, 2014;Gledhill et al, 2015). In similar high-latitude regions, such as the west coast of Norway, the highest transports of dissolved organic carbon and nutrients occur during periods of high freshwater outflows (Frigstad et al, 2020). The subsurface layer of this system has been characterized with high salinity, low O 2 , and high ammonium values suggesting that processes such as organic matter remineralization (e.g., nitrate/nitrite reduction and/or dissimilatory nitrate reduction to ammonium) could be occurring below the upper fresher layer (Frigstad et al, 2020).…”
Section: Discussionmentioning
confidence: 99%
“…In similar high-latitude regions, such as the west coast of Norway, the highest transports of dissolved organic carbon and nutrients occur during periods of high freshwater outflows (Frigstad et al, 2020). The subsurface layer of this system has been characterized with high salinity, low O 2 , and high ammonium values suggesting that processes such as organic matter remineralization (e.g., nitrate/nitrite reduction and/or dissimilatory nitrate reduction to ammonium) could be occurring below the upper fresher layer (Frigstad et al, 2020). Similar BGC processes are suggested in southeastern Greenland where high nutrient content and particulate organic carbon fluxes below the euphotic (and fresher) layer imply significant remineralization (Seifert et al, 2019).…”
Section: Discussionmentioning
confidence: 99%
“…At present, Skagerrak is under high pressure from intensive bottom trawling for northern shrimp Pandalus borealis which constitute the last economically viable fishery in this miniature deep sea (Knutsen et al, 2015;Kroodsma et al, 2018). In addition, environmental change influenced by land use in Skagerrak's large catchment is exacerbated by climate change (Frigstad et al, 2020).…”
Section: Study Systemmentioning
confidence: 99%