scholarly journals Mapping Cumulative Impacts of Human Activities on Marine Ecosystems

2018 ◽  
Author(s):  
SeaPlan

Given the diversity of human uses and natural resources that converge in coastal waters, the potential independent and cumulative impacts of those uses on marine ecosystems are important to consider during ocean planning. This study was designed to support the development and implementation of the 2009 Massachusetts Ocean Management Plan. Its goal was to estimate and visualize the cumulative impacts of human activities on coastal and marine ecosystems in the state and federal waters off of Massachusetts.For this study, regional ecosystem experts were surveyed to gauge the relative vulnerability of marine ecosystems to current and emerging anthropogenic stressors. Survey results were then combined with spatial information on the distribution of marine ecosystems and human stressors to map cumulative impacts in Massachusetts waters.The study resulted in an ecosystem vulnerability matrix and human impacts maps, which together yield insights into which ecosystems and places are most vulnerable and which human uses, alone and in combination, are putting the most stress on marine ecosystems. These products can be used in a number of ways, including to help clarify ocean planning decisions, identify areas of potential conflict among ocean users and areas that may merit conservation, and assess ecological, economic and social values of particular places.

2012 ◽  
Vol 1 (33) ◽  
pp. 64 ◽  
Author(s):  
Isabel Moreno ◽  
Irene Del Barrio ◽  
Ana Lloret ◽  
Ainhoa Pérez-Puyol

In 2008, the European Community adopted the Marine Strategy Framework Directive, aiming to achieve or maintain good environmental status in the European marine environment by 2020, applying an ecosystem-based approach to the management of human activities. Spatial information of the distribution of the human activities and their related pressures is essential to accomplish this task successfully. After compiling the available data from official sources, the spatial extent of the land-based and ocean-based human activities that could have an impact on the Spanish marine waters were estimated and mapped using GIS tools. In addition, a series of indexes were created in order to develop a cumulative analysis, taking into account the different relevance of pressures and that single pressures have different intensities. The identification of areas with an accumulation of pressures revealed that it is in coastal waters around big cities where the greater part of the pressures concentrates for each of the five Spanish marine districts. Human impacts emanating from the identified pressures could not be evaluated and this task is proposed to be accomplished in further projects. Nonetheless, the resulting information is considered very useful for managers and technical staff to support not only marine management but also other planning and decision making in Spain.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11054
Author(s):  
Maite Louzao ◽  
Karine Delord ◽  
David García ◽  
Isabel Afán ◽  
José Manuel Arcos ◽  
...  

Increasing human activities have detrimental consequences on marine ecosystems and their impact can have cumulative effects. Within marine ecosystems, seabirds respond to ecosystem variability and face multiple human pressures, especially threatened species. In long-lived species, juveniles and immatures could represent up to 50% of the total population, but their migratory movements remain largely unknown. Here, we depict the migratory patterns of juvenile Balearic shearwaters Puffinus mauretanicus, the most threatened European seabird, using miniaturised satellite transmitters. At the end of the 2012 breeding season, five tagged juveniles left the breeding colonies of Eivissa Island (western Mediterranean) the first week of July. They moved westwards to reach the Atlantic Ocean between 3 and 13 days afterwards. Juveniles showed a two-phase migratory pattern: they first travelled slower close to the breeding colonies, and then moved towards their wintering areas in the Atlantic Ocean by rapid directional movements. Environmental cues (e.g.,marine productivity, water mass distribution, frontal systems) might have a prominent role in driving the migratory patterns of juvenile Balearic shearwaters, moving from warm and poor marine areas in the Mediterranean Sea to cooler and rich non-breeding grounds in the Atlantic Ocean. Based on observational findings, we observed certain spatial overlap of juvenile Balearic shearwaters with areas of high human impact, but the relationship between flying travel speed and both fishing effort and cumulative human impacts were not statistically significant. These results suggest that more research is needed to assess whether the movement patterns of migrating juveniles are affected by human activities. Therefore, understanding the at-sea spatial ecology of juveniles should be a priority for research and conservation due to the importance of this population component in long-lived species, as well as assessing their vulnerability to multiple anthropogenic pressures.


2020 ◽  
pp. 5334-5336
Author(s):  
Torben C. Rick ◽  
Jon M. Erlandson

2021 ◽  
Author(s):  
Marcus Reckermann ◽  
Anders Omstedt ◽  
Tarmo Soomere ◽  
Juris Aigars ◽  
Naveed Akhtar ◽  
...  

Abstract. Coastal environments, in particular heavily populated semi-enclosed marginal seas and coasts like the Baltic Sea region, are stongly affected by human activities. A multitude of human impacts, including climate change, affects the different compartments of the environment, and these effects interact with each other. As part of the Baltic Earth Assessment Reports (BEAR), we present an inventory and discussion of different human-induced factors and processes affecting the environment of the Baltic Sea region, and their interrelations. Some are naturally occurring and modified by human activities (i.e. climate change, coastal processes, hypoxia, acidification, submarine groundwater discharges, marine ecosystems, non-indigenous species, land use and land cover), some are completely human-induced (i.e. agriculture, aquaculture, fisheries, river regulations, offshore wind farms, shipping, chemical contamination, dumped warfare agents, marine litter and microplastics, tourism, coastal management), and they are all interrelated to different degrees. We present a general description and analysis of the state of knowledge on these interrelations. Our main insight is that climate change has an overarching, integrating impact on all of the other factors and can be interpreted as a background effect, which has different implications for the other factors. Impacts on the environment and the human sphere can be roughly allocated to anthropogenic drivers such as food production, energy production, transport, industry and economy. We conclude that a sound management and regulation of human activities must be implemented in order to use and keep the environments and ecosystems of the Baltic Sea region sustainably in a good shape. This must balance the human needs, which exert tremendous pressures on the systems, as humans are the overwhelming driving force for almost all changes we see. The findings from this inventory of available information and analysis of the different factors and their interactions in the Baltic Sea region can largely be transferred to other comparable marginal and coastal seas in the world.


2015 ◽  
Vol 9 (1) ◽  
pp. 150-156 ◽  
Author(s):  
Chuang Lu ◽  
Bo Wang ◽  
Xiu-Yuan Peng ◽  
Xiao-Lei Hou ◽  
Bing Bai ◽  
...  

Management plan model of agricultural planting information technology research and application of design system for agricultural production and digital has important theoretical and practical significance of agricultural planting. The study concluded, extracted the relevant agricultural planting design theory and technology research based on the show, applying the system analysis principle and mathematical modeling technique, the construction and perfection of the cropping system, ecological regionalization, precision farming and productivity of quantitative analysis of the agricultural planting management knowledge model, by using the technology of software component, with GIS as spatial information management platform, the establishment of the digital system design based on GIS and model plant. The system has realized the design of cropping system of regional cropping information standardization management and different levels of for the realization of crop planting design, quantitative and digital laid the foundation.


2015 ◽  
Vol 17 (1) ◽  
pp. 190 ◽  
Author(s):  
F. BEN RAIS LASRAM ◽  
T. HATTAB ◽  
G. HALOUANI ◽  
M.S. ROMDHANE ◽  
F. LE LOC'H ◽  
...  

Human activities are increasingly impacting biodiversity. To improve conservation planning measures in an ecosystem-based management context, we need to explore how the effects of these activities interact with different biodiversity components. In this study, we used a semi-quantitative method to assess the cumulative impacts of human activities on three biodiversity components (species richness, phylogenetic diversity, and functional diversity) in Tunisia’s exclusive economic zone. For each of the nine activities considered, we developed an understanding of their effects from local studies and the expert opinion of stakeholders with country-specific experience. We mapped the cumulative effects and the three biodiversity components and then assessed the degree to which these elements overlapped using an overlap index. This is the first time such an assessment has been made for Tunisia’s marine ecosystems and our assessment highlight the inappropriateness of current conservation measures. The results of this study have specific application for the prioritization of future management actions.


2018 ◽  
Author(s):  
SeaPlan

In 2013, the Massachusetts Office of Coastal Zone Management (MA CZM) undertook an assessment of the 2009 Massachusetts Ocean Management Plan (Plan) in preparation for a Plan Amendment. As one phase of the Plan Assess- ment process, MA CZM coordinated with SeaPlan to conduct semi-structured interviews with members of the Massachusetts Ocean Advisory Commission (OAC) and Massachusetts Ocean Science Advisory Council (SAC) to assess their perspectives on Plan performance. Interviewers from SeaPlan’s assessment team contacted advisors and asked questions about the Plan, focusing on the Plan’s development process, the Plan’s implementation and recommendations for a fu- ture amendment to the Plan. The assessment team coded and analyzed responses to identify perspectives and insights held by OAC and SAC members. Overall, OAC and SAC members were very satisfied with the CZM staff’s competency to develop the 2009 Plan and the staff ’s administrative execution. OAC and SAC members appreciated the focused effort to produce a quality plan specific to Massachusetts’ habitats, economy, and stakeholders. Results of this assessment, coupled with a review of the Massachusetts Ocean Management Plan conducted by CZM, provides valuable context and insight for the plan amendment process.


PLoS ONE ◽  
2015 ◽  
Vol 10 (8) ◽  
pp. e0135473 ◽  
Author(s):  
Florian Holon ◽  
Nicolas Mouquet ◽  
Pierre Boissery ◽  
Marc Bouchoucha ◽  
Gwenaelle Delaruelle ◽  
...  

2002 ◽  
Vol 45 (11) ◽  
pp. 35-44 ◽  
Author(s):  
S.K. Hamilton

Inundation patterns in the Pantanal remain in a relatively natural state, yet a number of significant human influences have occurred in the past, and there is potential for more severe human impacts as development of the region continues in the future. The objectives of this paper are 1) to briefly review the linkages between hydrology and ecological structure and function in the Pantanal; 2) to review some documented cases of historical influences of human activities on hydrology in the region; and 3) to consider potential future impacts, particularly in regard to the recently proposed navigation project known as the Paraguay-Paraná Waterway (or Hidrovía).


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