Seaweed biodiversity in the south-western Antarctic Peninsula: surveying macroalgal community composition in the Adelaide Island/Marguerite Bay region over a 35-year time span

Mystikou, Alexandra; Peters, Akira F.; Asensi, Aldo; Fletcher, Kyle; Brickle, Paul; West, Pieter van; Convey, Peter; Küpper, Frithjof C.

doi:10.1007/s00300-014-1547-1

Cited by 44 publications

(33 citation statements)

References 55 publications

(56 reference statements)

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“…around the British Indian Ocean Territory (BIOT; Sheppard et al 2012) or, most recently, the proposal for the creation of a large MPA around Ascension Island. Similar to our recent work in the southwestern Antarctic Peninsula (Mystikou et al 2014) or the Canadian Arctic (Küpper et al 2016), scientists monitoring environmental change in most if not all UK Overseas Territories are likely confronting the shifting baselines problem (Jackson et al 2001, Jackson 2008, Knowlton and Jackson 2008, i.e. due to the lack of reliable datasets of community composition prior to the onset of major environmental change, it may be difficult to assess the impacts of the change on the community in question.…”

Section: Uk Overseas Territoriessupporting

confidence: 56%

The future of marine biodiversity and marine ecosystem functioning in UK coastal and territorial waters (including UK Overseas Territories) – with an emphasis on marine macrophyte communities

Küpper

Kamenos

2018

Botanica Marina

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Marine biodiversity and ecosystem functioning – including seaweed communities – in the territorial waters of the UK and its Overseas Territories are facing unprecedented pressures. Key stressors are changes in ecosystem functioning due to biodiversity loss caused by ocean warming (species replacement and migration, e.g. affecting kelp forests), sea level rise (e.g. loss of habitats including salt marshes), plastic pollution (e.g. entanglement and ingestion), alien species with increasing numbers of alien seaweeds (e.g. outcompeting native species and parasite transmission), overexploitation (e.g. loss of energy supply further up the food web), habitat destruction (e.g. loss of nursery areas for commercially important species) and ocean acidification (e.g. skeletal weakening of ecosystem engineers including coralline algal beds). These stressors are currently affecting biodiversity, and their impact can be projected for the future. All stressors may act alone or in synergy. Marine biodiversity provides crucial goods and services. Climate change and biodiversity loss pose new challenges for legislation. In particular, there are implications of climate change for the designation and management of Marine Protected Areas and natural carbon storage by marine systems to help control the global climate system. The UK currently has legal obligations to protect biodiversity under international and European law.

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Section: Uk Overseas Territoriessupporting

confidence: 56%

The future of marine biodiversity and marine ecosystem functioning in UK coastal and territorial waters (including UK Overseas Territories) – with an emphasis on marine macrophyte communities

Küpper

Kamenos

2018

Botanica Marina

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“…Similar to other marine bioregions such as the southwestern Antarctic Peninsula (Mystikou et al. ), scientists monitoring the American Arctic phytobenthos are likely confronting the shifting baselines problem (Jackson et al. , Jackson , Knowlton and Jackson ), i.e., due to the lack of reliable datasets of community composition prior to the onset of major environmental change it may be difficult to assess the impacts of the change on the community in question.…”

Section: Discussionmentioning

confidence: 99%

Arctic marine phytobenthos of northern Baffin Island

Küpper

Peters²,

Shewring

et al. 2016

Journal of Phycology

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Global climate change is expected to alter the polar bioregions faster than any other marine environment. This study assesses the biodiversity of seaweeds and associated eukaryotic pathogens of an established study site in northern Baffin Island (72° N), providing a baseline inventory for future work assessing impacts of the currently ongoing changes in the Arctic marine environment. A total of 33 Phaeophyceae, 24 Rhodophyceae, 2 Chlorophyceae, 12 Ulvophyceae, 1 Trebouxiophyceae, and 1 Dinophyceae are reported, based on collections of an expedition to the area in 2009, complemented by unpublished records of Robert T. Wilce and the first‐ever photographic documentation of the phytobenthos of the American Arctic. Molecular barcoding of isolates raised from incubated substratum samples revealed the presence of 20 species of brown seaweeds, including gametophytes of kelp and of a previously unsequenced Desmarestia closely related to D. viridis, two species of Pylaiella, the kelp endophyte Laminariocolax aecidioides and 11 previously unsequenced species of the Ectocarpales, highlighting the necessity to include molecular techniques for fully unraveling cryptic algal diversity. This study also includes the first records of Eurychasma dicksonii, a eukaryotic pathogen affecting seaweeds, from the American Arctic. Overall, this study provides both the most accurate inventory of seaweed diversity of the northern Baffin Island region to date and can be used as an important basis to understand diversity changes with climate change.

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“…This is a significant milestone as many coastal areas in Antarctica are difficult to access and most scientific visits occur in summer months only. We still have to assess the application of this method to other marine habitats—such as shallow‐subtidal areas—for which baseline data and evidences of climate change‐related dynamics are available (Quartino, Deregibus, Campana, Latorre, & Momo, ; Mystikou et al., ; Campana et al. ).…”

Section: Discussionmentioning

confidence: 99%

Predicting the cover and richness of intertidal macroalgae in remote areas: a case study in the Antarctic Peninsula

Kotta

Valdivia

Kutser

et al. 2018

Ecology and Evolution

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Antarctica is an iconic region for scientific explorations as it is remote and a critical component of the global climate system. Recent climate change causes a dramatic retreat of ice in Antarctica with associated impacts to its coastal ecosystem. These anthropogenic impacts have a potential to increase habitat availability for Antarctic intertidal assemblages. Assessing the extent and ecological consequences of these changes requires us to develop accurate biotic baselines and quantitative predictive tools. In this study, we demonstrated that satellite‐based remote sensing, when used jointly with in situ ground‐truthing and machine learning algorithms, provides a powerful tool to predict the cover and richness of intertidal macroalgae. The salient finding was that the Sentinel‐based remote sensing described a significant proportion of variability in the cover and richness of Antarctic macroalgae. The highest performing models were for macroalgal richness and the cover of green algae as opposed to the model of brown and red algal cover. When expanding the geographical range of the ground‐truthing, even involving only a few sample points, it becomes possible to potentially map other Antarctic intertidal macroalgal habitats and monitor their dynamics. This is a significant milestone as logistical constraints are an integral part of the Antarctic expeditions. The method has also a potential in other remote coastal areas where extensive in situ mapping is not feasible.

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Seaweed biodiversity in the south-western Antarctic Peninsula: surveying macroalgal community composition in the Adelaide Island/Marguerite Bay region over a 35-year time span

Cited by 44 publications

References 55 publications

The future of marine biodiversity and marine ecosystem functioning in UK coastal and territorial waters (including UK Overseas Territories) – with an emphasis on marine macrophyte communities

The future of marine biodiversity and marine ecosystem functioning in UK coastal and territorial waters (including UK Overseas Territories) – with an emphasis on marine macrophyte communities

Arctic marine phytobenthos of northern Baffin Island

Predicting the cover and richness of intertidal macroalgae in remote areas: a case study in the Antarctic Peninsula

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