Nutrient content in macrophyta collected from southern Baltic Sea beaches in relation to eutrophication and biogas production

Bucholc, K.; Szymczak‐Żyła, Małgorzata; Lubecki, Ludwik; Zamojska, Anna; Hapter, P.; Tjernström, E.; Kowalewska, Grażyna

doi:10.1016/j.scitotenv.2013.12.044

Cited by 54 publications

(30 citation statements)

References 48 publications

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“…According to other coarse estimates, altogether around 60,000 t dw of seaweeds may accumulate on beaches in southern Sweden each year (Blidberg and Gröndahl 2012). We have not found comparable estimates for other countries, but high accumulation has been documented in parts of the Estonian, Lithuanian and Polish coasts (Blidberg and Gröndahl 2012, Bucholc et al 2014. Very large amounts of biomass were found on the island of Öland in SE Sweden: During monthly measurements from 1999 to 2001 (Malm et al 2004) found particularly high amounts in September that ranged from 4000 to 12,000 m 3 km −1 coastline.…”

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 50%

“…Repetitions of this study in 2012 and 2013 on the same coastal section and based on the same methodology (Weinberger et al 2013) found significantly less Fucus (21 and 17%, respectively) and more eelgrass (37 and 49%) and other algae (42 and 34%), which were mostly opportunistic species that belonged to the genera Ceramium, Vertebrata, Cladophora, Pylaiella and Ulva (for some typical views see Figure 5). A strong dominance of opportunists in drifting and beach cast seaweed was also observed during the last two decades on many other Baltic Sea coasts, for example in Poland (Filipkowska et al 2009, Bucholc et al 2014, South Sweden (Bucholc et al 2014, Risén 2014, Southeast Sweden (Malm et al 2004), Estonia (Paalme et al 2004), South West Finland (Vahteri et al 2000) and the Åland archipelago (Berglund et al 2003).…”

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 82%

“…Small-scale collection of beach wrack occurs in several parts of the Baltic Sea region. For example, in 23 seaside resorts along the German Baltic Sea coast, in the Polish community of Sopot and in the Swedish community of Trelleborg between 26.9 and 135 t of wet biomass are on average removed per year and km of beach line together with variable amounts of sand (Davidsson 2007, Gröndahl 2009, Mossbauer et al 2012, Bucholc et al 2014. The harvested beach wrack composition varies among areas, but also among seasons, depending on the dynamics of the local seaweed populations (Weinberger et al 2013).…”

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 99%

“…Due to the large negative consequences of eutrophication in the Baltic Sea, reducing nutrient loads to the sea is a top priority in the catchment area, as demanded by the EU water framework directive (European Parliament and Council 2014). Harvest of beach wrack will have a minor effect on the large-scale eutrophication, even with optimistic estimates of harvest potential (Bucholc et al 2014) but, in areas where large amounts are harvested, it may decrease the local nutrient load substantially (Kaspersen et al 2016). Consequently, a study of non-market values of beach cast management indicated that local residents in southern Sweden have a high willingness to pay for an environmental program that removes seaweeds from beaches and uses the biomass for production of biogas (Risén et al 2017).…”

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 99%

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Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

2019

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Due to low salinity and lack of hard substrata, the Baltic Sea and Kattegat area and German and Danish North Sea coasts are characterized by a relatively low diversity of seaweeds. At the same time the areas are severely eutrophicated, which has caused extensive shifts in macroalgal communities toward opportunistic species. Unattached seaweed communities dominated by Furcellaria lumbricalis, which have been a resource for hydrocolloid production since the 1940s, have been severely reduced due to eutrophication and unsustainable harvesting and are nowadays only exploited commercially in Estonia. On the other hand, the biomass of opportunistic seaweeds of various red, green and brown algal genera has increased. They cause ecological problems, are a nuisance on many tourist beaches and constitute at the same time a potential bioresource that is so far only exploited to a limited extent for production of energy and fertilizer. Commercial seaweed cultivation is largely focused on Saccharina latissima and still very limited, but is currently being expanded as a compensation measure for sea-based fish aquaculture. Also land-based seaweed cultivation is primarily employed for recycling of nutrients in tank animal aquaculture, but in most cases so far only on an experimental scale.

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Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 50%

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 82%

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 99%

Section: Beach Wrack As a Potential Bioresourcementioning

confidence: 99%

See 2 more Smart Citations

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

2019

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“…Another distinctive feature for red algae is accumulating floridean starch and floridoside, which are similar to starch. But green and brown algae do not have these carbohydrates [23,24].…”

Section: Macroalgae Availability and Chemical Compositionmentioning

confidence: 99%

Prospects for Bioethanol Production from Macroalgae

Chen

Bai

et al. 2015

Tr Ren Energy

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Positive contribution of macrofaunal biodiversity to secondary production and seagrass carbon metabolism

Rodil

Lohrer

Attard

et al. 2022

Ecology

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Coastal vegetated habitats such as seagrasses are known to play a critical role in carbon cycling and the potential to mitigate climate change, as blue carbon habitats have been repeatedly highlighted. However, little information is known about the role of associated macrofauna communities on the dynamics of critical processes of seagrass carbon metabolism (e.g., respiration, turnover, and production). We conducted a field study across a spatial gradient of seagrass meadows involving variable environmental conditions and macrobenthic diversity to investigate (1) the relationship between macrofauna biodiversity and secondary production (i.e., consumer incorporation of organic matter per time unit), and (2) the role of macrofauna communities in seagrass organic carbon metabolism (i.e., respiration and primary production). We show that, although several environmental factors influence secondary production, macrofauna biodiversity controls the range of local seagrass secondary production. We demonstrate that macrofauna respiration rates were responsible for almost 40% of the overall seafloor community respiration. Macrofauna represented on average >25% of the total benthic organic C stocks, high secondary production that is likely to become available to upper trophic levels of the coastal food web. Our findings support the role of macrofauna biodiversity in maintaining productive ecosystems, implying that biodiversity loss due to ongoing environmental change yields less productive seagrass ecosystems. Therefore, the assessment of carbon dynamics in coastal habitats should include associated macrofauna biodiversity elements if we aim to obtain robust estimates of global carbon budgets required to implement management actions for the sustainable functioning of the world's coasts.

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Nutrient content in macrophyta collected from southern Baltic Sea beaches in relation to eutrophication and biogas production

Cited by 54 publications

References 48 publications

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

Prospects for Bioethanol Production from Macroalgae

Positive contribution of macrofaunal biodiversity to secondary production and seagrass carbon metabolism

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