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Multifaceted biodiversity hotspots of marine mammals for conservation priorities

Albouy C, Delattre VL, Mérigot B, Meynard CN, Leprieur F. Multifaceted biodiversity hotspots of marine mammals for conservation priorities. Diversity and Distributions [Internet]. 2017 ;23(6):615 - 626. Available from: http://onlinelibrary.wiley.com/doi/10.1111/ddi.12556/full
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $38.00
Type: Journal Article

Aim

Identifying the multifaceted biodiversity hotspots for marine mammals and their spatial overlap with human threats at the global scale.

Location

World-wide.

Methods

We compiled a functional trait database for 121 species of marine mammals characterized by 14 functional traits grouped into five categories. We estimated marine mammal species richness (SR) as well as functional (FD) and phylogenetic diversity (PD) per grid cell (1° × 1°) using the FRic index (a measure of trait diversity as the volume of functional space occupied by the species present in an assemblage) and the PD index (the amount of evolutionary history represented by a set of species), respectively. Finally, we assessed the spatial congruence of these three facets of biodiversity hotspots (defined as 2.5% and 5% of the highest values of SR, FD and PD) with human threats at the global scale.

Results

We showed that the FRic index was weakly correlated with both SR and the PD index. Specifically, SR and FRic displayed a triangular relationship, that is, increasing variability in FRic along the species richness gradient. We also observed a striking lack of spatial congruence (<0.1%) between current human threats and the distribution of the multiple facets of biodiversity hotspots.

Main Conclusions

We highlighted that functional diversity calculated using the FRic index is weakly associated with the species richness of marine mammals world-wide. This is one of the most endangered vertebrate groups playing a key ecological role in marine ecosystems. This finding calls for caution when using only species richness as a benchmark for defining marine mammal biodiversity hotspots. The very low level of spatial congruence between hotspots of current threats and those of the multiple facets of marine mammal biodiversity suggests that current biodiversity patterns for this group have already been greatly affected by their history of exploitation.

Practical steps toward integrating economic, social and institutional elements in fisheries policy and management

Stephenson RL, Benson AJ, Brooks K, Charles A, Degnbol P, Dichmont CM, Kraan M, Pascoe S, Paul SD, Rindorf A, et al. Practical steps toward integrating economic, social and institutional elements in fisheries policy and management. ICES Journal of Marine Science [Internet]. 2017 . Available from: https://academic.oup.com/icesjms/article/doi/10.1093/icesjms/fsx057/3787887/Practical-steps-toward-integrating-economic-social
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

While international agreements and legislation call for incorporation of four pillars of sustainability, the social (including cultural), economic and institutional aspects (the ‘human dimension’) have been relatively neglected to date. Three key impediments have been identified: a relative lack of explicit social, economic and institutional objectives; a general lack of process (frameworks, governance) for routine integration of all four pillars of sustainability; and a bias towards biological considerations. Practical integration requires a ‘systems’ approach with explicit consideration of strategic and operational aspects of management; multidisciplinary or transdisciplinary evaluations; practical objectives for the four pillars of sustainability; appropriate participation; and a governance system that is able to integrate these diverse considerations in management. We challenge all involved in fisheries to immediately take five practical steps toward integrating ecological, economic, social and institutional aspects: (1) Adopt the perspective of the fishery as a ‘system’ with interacting natural, human and management elements; (2) Be aware of both strategic and operational aspects of fisheries assessment and management; (3) Articulate overarching objectives that incorporate all four pillars of sustainability; (4) Encourage appropriate (and diverse) disciplinary participation in all aspects of research, evaluation and management; and (5) Encourage development of (or emulate) participatory governance.

Adaptive capacity: from assessment to action in coastal social-ecological systems

Whitney CK, Bennett NJ, Ban NC, Allison EH, Armitage D, Blythe JL, Burt JM, Cheung W, Finkbeiner EM, Kaplan-Hallam M, et al. Adaptive capacity: from assessment to action in coastal social-ecological systems. Ecology and Society [Internet]. 2017 ;22(2). Available from: https://www.ecologyandsociety.org/vol22/iss2/art22/
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

Because of the complexity and speed of environmental, climatic, and socio-political change in coastal marine social-ecological systems, there is significant academic and applied interest in assessing and fostering the adaptive capacity of coastal communities. Adaptive capacity refers to the latent ability of a system to respond proactively and positively to stressors or opportunities. A variety of qualitative, quantitative, and participatory approaches have been developed and applied to understand and assess adaptive capacity, each with different benefits, drawbacks, insights, and implications. Drawing on case studies of coastal communities from around the globe, we describe and compare 11 approaches that are often used to study adaptive capacity of social and ecological systems in the face of social, environmental, and climatic change. We synthesize lessons from a series of case studies to present important considerations to frame research and to choose an assessment approach, key challenges to analyze adaptive capacity in linked social-ecological systems, and good practices to link results to action to foster adaptive capacity. We suggest that more attention be given to integrated social-ecological assessments and that greater effort be placed on evaluation and monitoring of adaptive capacity over time and across scales. Overall, although sustainability science holds a promise of providing solutions to real world problems, we found that too few assessments seem to lead to tangible outcomes or actions to foster adaptive capacity in social-ecological systems.

Stakeholder perspectives on the importance of rare-species research for deep-sea environmental management

Turner PJ, Campbell LM, Van Dover CL. Stakeholder perspectives on the importance of rare-species research for deep-sea environmental management. Deep Sea Research Part I: Oceanographic Research Papers [Internet]. 2017 . Available from: http://www.sciencedirect.com/science/article/pii/S0967063716304356
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $39.95
Type: Journal Article

The apparent prevalence of rare species (rarity) in the deep sea is a concern for environmental management and conservation of biodiversity. Rare species are often considered at risk of extinction and, in terrestrial and shallow water environments, have been shown to play key roles within an ecosystem. In the deep-sea environment, current research focuses primarily on abundant species and deep-sea stakeholders are questioning the importance of rare species in ecosystem functioning. This study asks whether deep-sea stakeholders (primarily scientists) view rare-species research as a priority in guiding environmental management. Delphi methodology (i.e., an iterative survey approach) was used to understand views about whether or not ‘deep-sea scientists should allocate more resources to research on rare species in the deep sea, even if this means less resources might be available for abundant-species research.’ Results suggest little consensus regarding the prioritization of resources for rare-species research. From Survey 1 to Survey 3, the average participant response shifted toward a view that rare-species research is not a priority if it comes at a cost to research on abundant species. Participants pointed to the need for a balanced approach and highlighted knowledge gaps about even the most fundamental questions, including whether rare species are truly ‘rare’ or simply under-sampled. Participants emphasized the lack of basic biological knowledge for rare and abundant species, particularly abundant meio- and microscopic species, as well as uncertainty in the roles rare and abundant species play in ecosystem processes. Approaches that jointly consider the role of rare and abundant species in ecosystem functioning (e.g., biological trait analysis) may help to clarify the extent to which rare species need to be incorporated into deep-sea environment management in order to maintain ecosystem functioning.

Fishing for leadership: The role diversification plays in facilitating change agents

Stoll JS. Fishing for leadership: The role diversification plays in facilitating change agents. Journal of Environmental Management [Internet]. 2017 ;199:74 - 82. Available from: http://www.sciencedirect.com/science/article/pii/S0301479717304693
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $41.95
Type: Journal Article

Leadership is often viewed as being critical to successful natural resource management. This research focuses on a set of leaders identified through a social network analysis of fishers in a rural coastal region. Leaders' connections to different fisheries are evaluated, and these actors are found to be significantly more diversified than other fishers in the area. Drawing on theory related to institutional entrepreneurship and a series of in-depth interviews with these actors, this paper puts forward several hypotheses to explain how diverse social-ecological connections facilitate leadership. Three mechanisms are identified. Being diversified facilitates: (1) production of alternative visions; (2) framing of tractable strategies to sustain local marine resource; and (3) participation in the management process. While more research is needed to understand the relationship between diversification and leadership, these exploratory results suggest that leadership is, in part, a manifestation of ecological circumstance, supporting recent assertions that scholarship on leadership in natural resource management settings could benefit from being more attentive to the processes that shape leadership rather than fixating on individuals and their personal attributes. Given that fisheries policies increasingly constrain diversification, policymakers and managers should consider how specialization of fishers might change the form and function of leaders in the future.

Abundance of Corals on Offshore Oil and Gas Platforms in the Gulf of Mexico

Kolian SR, Sammarco PW, Porter SA. Abundance of Corals on Offshore Oil and Gas Platforms in the Gulf of Mexico. Environmental Management [Internet]. 2017 . Available from: https://link.springer.com/article/10.1007/s00267-017-0862-z
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $39.95
Type: Journal Article

Scleractinian, octocoral, and antipatharian corals have colonized many of the offshore oil and gas platforms in the northern Gulf of Mexico. We surveyed 25 offshore oil and gas platforms for these cnidarians. Few to no corals were detected on inshore, shallow-water structures at <25 m depth; however, the abundance of corals increased, ranging from 14 to 194/m2, on platforms in waters deeper ≥25 m. The most common coral encountered were Tubastraea coccinea (Scleractinia) and Telesto spp. (Octocorallia). The data suggest that the offshore platforms located in waters of >25–30 m in the study area are often colonized by these corals. We recommend that structures located in deeper waters should be surveyed for coral and, if the populations are substantial, consider alternate uses for the retired platforms, and leaving them in place, when feasible.

Impact of marine reserve on maximum sustainable yield in a traditional prey-predator system

Paul P, Kar TK, Ghorai A. Impact of marine reserve on maximum sustainable yield in a traditional prey-predator system. Communications in Nonlinear Science and Numerical Simulation [Internet]. 2018 ;54:34 - 49. Available from: http://www.sciencedirect.com/science/article/pii/S1007570417301740
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $39.95
Type: Journal Article

Multispecies fisheries management requires managers to consider the impact of fishing activities on several species as fishing impacts both targeted and non-targeted species directly or indirectly in several ways. The intended goal of traditional fisheries management is to achieve maximum sustainable yield (MSY) from the targeted species, which on many occasions affect the targeted species as well as the entire ecosystem. Marine reserves are often acclaimed as the marine ecosystem management tool. Few attempts have been made to generalize the ecological effects of marine reserve on MSY policy. We examine here how MSY and population level in a prey-predator system are affected by the low, medium and high reserve size under different possible scenarios. Our simulation works shows that low reserve area, the value of MSY for prey exploitation is maximum when both prey and predator species have fast movement rate. For medium reserve size, our analysis revealed that the maximum value of MSY for prey exploitation is obtained when prey population has fast movement rate and predator population has slow movement rate. For high reserve area, the maximum value of MSY for prey’s exploitation is very low compared to the maximum value of MSY for prey’s exploitation in case of low and medium reserve. On the other hand, for low and medium reserve area, MSY for predator exploitation is maximum when both the species have fast movement rate.

An integrated method to evaluate and monitor the conservation state of coralligenous habitats: The INDEX-COR approach

Sartoretto S, Schohn T, Bianchi CNike, Morri C, Garrabou J, Ballesteros E, Ruitton S, Verlaque M, Daniel B, Charbonnel E, et al. An integrated method to evaluate and monitor the conservation state of coralligenous habitats: The INDEX-COR approach. Marine Pollution Bulletin [Internet]. 2017 . Available from: http://www.sciencedirect.com/science/article/pii/S0025326X17304071
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $39.95
Type: Journal Article

A new method based on photographic sampling coupled with in situ observations was applied to 53 stations along the French Mediterranean coast, to assess the integrity of coralligenous reefs affected by different levels of anthropogenic pressure. The conservation state of the assemblages characterizing these habitats was then assessed by an index – the INDEX-COR – that integrates three metrics: (i) the sensitivity of the taxa to organic matter and sediment deposition, (ii) the observable taxonomic richness, and (iii) the structural complexity of the assemblages. The sensitivity of INDEX-COR was tested and showed good correlation with the Level of Pressure calculated for each station according to expert judgment and field observations.

The Importance of Fishing Grounds as Perceived by Local Communities Can be Undervalued by Measures of Socioeconomic Cost Used in Conservation Planning

Hamel MA, Pressey RL, Evans LS, Andréfouët S. The Importance of Fishing Grounds as Perceived by Local Communities Can be Undervalued by Measures of Socioeconomic Cost Used in Conservation Planning. Conservation Letters [Internet]. 2017 . Available from: http://onlinelibrary.wiley.com/doi/10.1111/conl.12352/full
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

Marine reserve placement must account for the importance of places for resource use to minimize negative socioeconomic impacts and improve compliance. It is often assumed that placing marine reserves in locations that minimize lost fishing opportunities will reduce impacts on coastal communities, but the influence of the fishing data used on this outcome remains poorly understood. In the Madang Lagoon (Papua New Guinea), we compared three types of proxies for conservation costs to local fishing communities. We developed two types of proxies of opportunity costs commonly used in marine conservation planning: current fishing activity with fisher surveys (n = 68) and proximity from shore. We also developed proxies based on areas of importance for fishing as perceived by surveyed households (n = 52). Although all proxies led to different configurations of potential marine reserves, the three types of cost data reflect different aspects of importance for fishing and should be used as complementary measures.

Untangling Academic Publishing: A history of the relationship between commercial interests, academic prestige and the circulation of research

Fyfe A, Coate K, Curry S, Lawson S, Moxham N, Røstvik CMørk. Untangling Academic Publishing: A history of the relationship between commercial interests, academic prestige and the circulation of research. Zenodo; 2017. Available from: https://zenodo.org/record/546100#.WSb23jdlBhE
Freely available?: 
Yes
Summary available?: 
No
Type: Report

Since the Second World War, academic publishing practices have had to cope with enormous changes in the scale of the research enterprise, in the culture and management of higher education, and in the ecosystem of scholarly publishers. The pace of change has been particularly rapid in the last twenty-five years, thanks to digital technologies. This has also been a time of growing divergence between the different roles of academic publishing: as a means of disseminating validated knowledge, as a form of symbolic capital for academic career progression, and as a profitable business enterprise.

This briefing paper aims to provide a historical perspective that can inform the debates about what the future of academic publishing should look like. We argue that current policy regarding open access publishing, and many of the other proposals for the reform of academic publishing, have been too focused on the opportunities and financial challenges of the most recent changes in digital communications technologies and have given undue weight to commercial concerns.

We show that the business practices and the cultural significance of academic publishing have been significantly transformed since the late nineteenth century as increasing government funding drove the expansion and professionalization of the research community, a process that accelerated rapidly after the Second World War. We examine how academic publishing practices have responded to the increasing number of researchers and publications worldwide, the changing expectations of academic workloads and outputs in the higher education sector, and the new business models in the publishing industry. A key phenomenon has been the growing importance of published works as career-defining tokens of prestige for academics. Although the new technologies that emerged in the late twentieth century offer great potential for improving the speed and efficiency of scholarly communication, the publishing model has been relatively slow to change.

The key themes of this briefing paper are:

  • the business of academic publishing
  • the role of publishing in academic careers
  • and the tangled and changing relationship between them.

Italy introduces pre and post operation monitoring phases for offshore seismic exploration activities

Fossati C, Mussi B, Tizzi R, Pavan G, Pace DS. Italy introduces pre and post operation monitoring phases for offshore seismic exploration activities. Marine Pollution Bulletin [Internet]. 2017 . Available from: http://www.sciencedirect.com/science/article/pii/S0025326X17304022
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $39.95
Type: Journal Article

Concern is growing that marine fauna can be affected by noise such as naval sonar, pile driving or geophysical surveys, among others. Literature reports a variety of animal reactions to human noise (from apparently null or negligible to strong). However, conclusive results on its effects on marine mammals at individual and population level are still lacking. In 2015, the Italian Environmental Impact Assessment Commission mandated seismic operators apply a standard scientific protocol comparing marine mammal presence before, during, and after offshore seismic survey. For 60 days before and after the survey, marine mammals are monitored using visual and acoustic methods. One or more acoustic autonomous recorders, depending on area size, must also be deployed throughout the three phases for continuous monitoring. Consistent data gathered from many surveys will enable robust statistical analysis of results. Diffusion of this monitoring method internationally would improve the study of far-reaching, intense, low frequency noise.

Novel method to delimitate and demarcate coastal zone boundaries

Batista CMilanés, Suárez A, Saltarén CMBotero. Novel method to delimitate and demarcate coastal zone boundaries. Ocean & Coastal Management [Internet]. 2017 ;144:105 - 119. Available from: http://www.sciencedirect.com/science/article/pii/S0964569117304155
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $35.95
Type: Journal Article

Different legal frameworks and concepts have been used to establish coastal zone boundaries. Integrated Coastal Zone Management use some criteria, while Land-Use Planning use a different criteria. A critical analysis about this topic is done in the present study, with the aim of proposing a novel method for delimitation and demarcation of coastal zone boundaries. The method offers an integrated perspective regarding the river basin, the coastal zone, and their corresponding economic zones. Moreover, it is comprised of dependent and independent variables, representing useful decision-making tools for applying Integrated Coastal Zone Management and Land-Use Planning initiatives. The concepts of Primary Environmental Coastal Units for Integrated Management (PECUIM) and Basic Environmental Coastal Units for Integrated Management and Land-Use Planning (BECUIMLUP) were proposed and applied in Cuba, where twenty-three PECUIM and four BECUIMLUP were demarcated and delimitated. At the end of this paper, the importance of integrated criteria for coastal zone boundaries is concluded and demonstrated.

Reproductive biology of the deep brooding coral Seriatopora hystrix: Implications for shallow reef recovery

Prasetia R, Sinniger F, Hashizume K, Harii S. Reproductive biology of the deep brooding coral Seriatopora hystrix: Implications for shallow reef recovery. PLOS ONE [Internet]. 2017 ;12(5):e0177034. Available from: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0177034
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

Mesophotic coral ecosystems (MCEs, between 30 and 150 m depth) are hypothesized to contribute to the recovery of degraded shallow reefs through sexually produced larvae (referred to as Deep Reef Refuge Hypothesis). In Okinawa, Japan, the brooder coral Seriatopora hystrix was reported to be locally extinct in a shallow reef while it was found abundant at a MCE nearby. In this context, Shystrix represents a key model to test the Deep Reef Refuge Hypothesis and to understand the potential contribution of mesophotic corals to shallow coral reef recovery. However, the reproductive biology of mesophotic Shystrix and its potential to recolonize shallow reefs is currently unknown. This study reports for the first time, different temporal scales of reproductive periodicity and larval settlement of Shystrix from an upper mesophotic reef (40 m depth) in Okinawa. We examined reproductive seasonality, lunar, and circadian periodicity (based on polyp dissection, histology, and ex situ planula release observations) and larval settlement rates in the laboratory. Mesophotic Shystrix reproduced mainly in July and early August, with a small number of planulae being released at the end of May, June and August. Compared to shallow colonies in the same region, mesophotic Shystrix has a 4-month shorter reproductive season, similar circadian periodicity, and smaller planula size. In addition, most of the planulae settled rapidly, limiting larval dispersal potential. The shorter reproductive season and smaller planula size may result from limited energy available for reproduction at deeper depths, while the similar circadian periodicity suggests that this reproductive aspect is not affected by environmental conditions differing with depth. Overall, contribution of mesophotic Shystrix to shallow reef rapid recovery appears limited, although they may recruit to shallow reefs through a multistep process over a few generations or through random extreme mixing such as typhoons.

The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C)

Ferguson RMW, Gontikaki E, Anderson JA, Witte U. The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C). Scientific Reports [Internet]. 2017 ;7(1). Available from: https://www.nature.com/articles/s41598-017-02475-9
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

The microbial degradation of petroleum hydrocarbons at low temperatures was investigated in subarctic deep-sea sediments in the Faroe Shetland Channel (FSC). The effect of the marine oil dispersant, Superdispersant 25 on hydrocarbon degradation was also examined. Sediments collected at 500 and 1000 m depth were spiked with a model oil containing 20 hydrocarbons and incubated at ambient temperature (5 and 0 °C, respectively) with and without marine dispersant. Treatment of sediments with hydrocarbons resulted in the enrichment of Gammaproteobacteria, and specifically the genera PseudoalteromonasPseudomonasHalomonas, and Cobetia. Hydrocarbon degradation was faster at 5 °C (500 m) with 65–89% of each component degraded after 50 days compared to 0–47% degradation at 0 °C (1000 m), where the aromatic hydrocarbons fluoranthene, anthracene, and Dibenzothiophene showed no degradation. Dispersant significantly increased the rate of degradation at 1000 m, but had no effect at 500 m. There was no statistically significant effect of Superdispersant 25 on the bacterial community structure at either station. These results show that the indigenous bacterial community in the FSC has the capacity to mitigate some of the effects of a potential oil spill, however, the effect of dispersant is ambiguous and further research is needed to understand the implications of its use.

Facial appearance affects science communication

Gheorghiu AI, Callan MJ, Skylark WJ. Facial appearance affects science communication. Proceedings of the National Academy of Sciences [Internet]. 2017 :201620542. Available from: http://www.pnas.org/content/early/2017/05/16/1620542114.abstract.html?etoc
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

First impressions based on facial appearance predict many important social outcomes. We investigated whether such impressions also influence the communication of scientific findings to lay audiences, a process that shapes public beliefs, opinion, and policy. First, we investigated the traits that engender interest in a scientist’s work, and those that create the impression of a “good scientist” who does high-quality research. Apparent competence and morality were positively related to both interest and quality judgments, whereas attractiveness boosted interest but decreased perceived quality. Next, we had members of the public choose real science news stories to read or watch and found that people were more likely to choose items that were paired with “interesting-looking” scientists, especially when selecting video-based communications. Finally, we had people read real science news items and found that the research was judged to be of higher quality when paired with researchers who look like “good scientists.” Our findings offer insights into the social psychology of science, and indicate a source of bias in the dissemination of scientific findings to broader society.

Our path to better science in less time using open data science tools

Lowndes JSStewart, Best BD, Scarborough C, Afflerbach JC, Frazier MR, O’Hara CC, Jiang N, Halpern BS. Our path to better science in less time using open data science tools. Nature Ecology & Evolution [Internet]. 2017 ;1(6):0160. Available from: https://www.nature.com/articles/s41559-017-0160
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

Reproducibility has long been a tenet of science but has been challenging to achieve—we learned this the hard way when our old approaches proved inadequate to efficiently reproduce our own work. Here we describe how several free software tools have fundamentally upgraded our approach to collaborative research, making our entire workflow more transparent and streamlined. By describing specific tools and how we incrementally began using them for the Ocean Health Index project, we hope to encourage others in the scientific community to do the same—so we can all produce better science in less time.

How does framing affect policy support for emissions mitigation? Testing the effects of ocean acidification and other carbon emissions frames

Mossler MV, Bostrom A, Kelly RP, Crosman KM, Moy P. How does framing affect policy support for emissions mitigation? Testing the effects of ocean acidification and other carbon emissions frames. Global Environmental Change [Internet]. 2017 ;45:63 - 78. Available from: http://www.sciencedirect.com/science/article/pii/S0959378016303818
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $35.95
Type: Journal Article

Public support for carbon emissions mitigation is crucial to motivate action to address global issues like climate change and ocean acidification (OA). Yet in the public sphere, carbon emissions mitigation policies are typically discussed in the context of climate change and rarely in the context of OA or other global change outcomes. In this paper, we advance research on OA and climate change perceptions and communication, by (i) examining causal beliefs about ocean acidification, and (ii) measuring support for mitigation policies from individuals presented with one of five different policy frames (climate change, global warming, carbon pollution, air pollution, and ocean acidification). Knowledge about OA causes and consequences is more widespread than we anticipated, though still generally low. Somewhat surprisingly, an “air pollution” mitigation frame elicits the highest degree of policy support overall, while “carbon pollution” performs no better than “climate change” or “global warming.” Framing effects are in part contingent on prior knowledge and attitudes, and mediated by concern. Perhaps due to a lack of OA awareness, the OA frame generates the least support overall, although it seems to close the gap in support associated with political orientation: the OA frame increases support among those (few) conservatives who report having heard of OA before the survey. These findings complement previous work on climate change communication and suggest the need for further research into OA as an effective way to engage conservatives in carbon emissions mitigation policy. Potentially even more promising is the air pollution framing.

Arctic Invasive Alien Species Strategy and Action Plan

Anon. Arctic Invasive Alien Species Strategy and Action Plan. Akureyri, Iceland; 2017. Available from: https://caff.is/strategies-series/415-arctic-invasive-alien-species-strategy-and-action-plan
Freely available?: 
Yes
Summary available?: 
No
Type: Report

The Arctic Invasive Alien Species (ARIAS) Strategy and Action Plan sets forth the priority actions that the Arctic Council and its partners are encouraged to take to protect the Arctic region from a significant threat: the adverse impacts of invasive alien species. These priority actions span terrestrial, aquatic, and marine ecosystems. The actions take environmental, cultural, and economic perspectives into consideration, including drivers, impacts, and response measures.

Offshore Aquaculture: I Know It When I See It

Froehlich HE, Smith A, Gentry RR, Halpern BS. Offshore Aquaculture: I Know It When I See It. Frontiers in Marine Science [Internet]. 2017 ;4. Available from: http://journal.frontiersin.org/article/10.3389/fmars.2017.00154/full
Freely available?: 
Yes
Summary available?: 
No
Type: Journal Article

Offshore aquaculture is increasingly viewed as a mechanism to meet growing protein demand for seafood, while minimizing adverse consequences on the environment and other uses in the oceans. However, despite growing interest in offshore aquaculture, there appears to be no consensus as to what measures commonly define an offshore site or how effects of offshore aquaculture—relative to more nearshore practices—are assessed. This lack of agreement on what constitutes offshore aquaculture has the potential to convolute communication, create uncertainty in regulatory processes, and impede understanding of the ecological implications of offshore farming. To begin addressing these issues, we reviewed and analyzed biologically-focused primary and gray literature (Ntotal = 70) that categorize and quantify characteristics of offshore aquaculture from around the world. We found that many “offshore” descriptions are relatively close to shore (<3 nm) and significantly shallower (minimum depth ≤30 m) than may be assumed. We also uncovered an overall lack of consistent reporting of even the most common location-focused metrics (distance from shore, depth, current), a dearth of impact related studies (n = 17), and narrow scope of the studies themselves (i.e., 82% nutrient pollution). Of the finite subset of articles that investigated negative ecological impacts of offshore aquaculture, we found the probability of any measurable impact from an offshore farm appears to significantly decrease with distance from the farm (probability of measurable response at 90 m ± SE = 0.01 ± 0.03). Such general, but informative points of reference could be more robustly quantified with better systematic and standardized reporting of physical farm characteristics and a broader scope of ecological investigation into the effects of marine aquaculture. With offshore aquaculture still in its infancy, consistent metrics are needed for a comparable framework to guide sustainable offshore aquaculture research and development globally.

Reassessment of 20th century global mean sea level rise

Dangendorf S, Marcos M, Wöppelmann G, Conrad CP, Frederikse T, Riva R. Reassessment of 20th century global mean sea level rise. Proceedings of the National Academy of Sciences [Internet]. 2017 :201616007. Available from: http://www.pnas.org/content/early/2017/05/16/1616007114
Freely available?: 
No
Summary available?: 
No
Approximate cost to purchase or rent this item from the publisher: 
US $10.00
Type: Journal Article

The rate at which global mean sea level (GMSL) rose during the 20th century is uncertain, with little consensus between various reconstructions that indicate rates of rise ranging from 1.3 to 2 mm⋅y−1. Here we present a 20th-century GMSL reconstruction computed using an area-weighting technique for averaging tide gauge records that both incorporates up-to-date observations of vertical land motion (VLM) and corrections for local geoid changes resulting from ice melting and terrestrial freshwater storage and allows for the identification of possible differences compared with earlier attempts. Our reconstructed GMSL trend of 1.1 ± 0.3 mm⋅y−1 (1σ) before 1990 falls below previous estimates, whereas our estimate of 3.1 ± 1.4 mm⋅y−1 from 1993 to 2012 is consistent with independent estimates from satellite altimetry, leading to overall acceleration larger than previously suggested. This feature is geographically dominated by the Indian Ocean–Southern Pacific region, marking a transition from lower-than-average rates before 1990 toward unprecedented high rates in recent decades. We demonstrate that VLM corrections, area weighting, and our use of a common reference datum for tide gauges may explain the lower rates compared with earlier GMSL estimates in approximately equal proportion. The trends and multidecadal variability of our GMSL curve also compare well to the sum of individual contributions obtained from historical outputs of the Coupled Model Intercomparison Project Phase 5. This, in turn, increases our confidence in process-based projections presented in the Fifth Assessment Report of the Intergovernmental Panel on Climate Change.

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