Recommendations

Citizen Science

• Engage local communities in monitoring activities through citizen science and incorporate local knowledge as an integral part of future circumpolar monitoring and observational networks.
• Interact with local communities to enhance outreach to the public (youth in particular) and develop common observational tools.
• Provide material for training and educational purposes for local residents at all age levels.

Benthos

• Develop a time- and cost-effective, long-term and standardized monitoring of megabenthic communities in all Arctic regions using regular national groundfish assessment surveys. Expanding monitoring on micro-, meio- and macrobenthic groups is encouraged.
• Gather information from research programs in regions without regular groundfish-shellfish trawl surveys. These are usually short-term and do not guarantee spatial consistency in sampling, but provide valuable information on benthic biodiversity and community patterns.
• Generate information on benthos from little-known regions, such as the Arctic Basin and Arctic Archipelago, on cryptic or difficult taxonomic groups, and on biological “hotspots”.
• Systematic studies of macrobenthos (grab investigations) and megabenthos (trawl bycatch of regular fishery surveys including both annual studies, as in the Atlantic Arctic, and periodic studies as in the Northern Bering and Chukchi Seas) are the most suitable and practical approach to long-term monitoring.
• Standardize methodology, including taxonomic identification, across regions to assist in regional comparisons.
• Recognize and support the use of TLK as an invaluable resource for understanding of changes in Arctic benthic communities.

Vegetation : Monitoring of vegetation is inconsistent, with large gaps in geographical cover. Of the four FECs for monitoring vegetation, the START was able to report on all plants, species of concern, and invasive alien species. Food species were not included as data were too disparate.

• Investigate causality in vegetation change in the context of ecosystem components, including habitat specific drivers, particularly climate, and emphasize ecosystem-based approaches.
• Continue and expand in situ time series.
• Utilize plot-based vegetation surveys to provide insight into vegetation changes and improve the ability to predict environmental change impacts on tundra ecosystems.
• Better consider the expected impacts of biotic and abiotic drivers on vegetation change when developing monitoring programs and conceptual models.
• Use regional and global remote-sensing products with higher spatial and temporal resolution.
• Increase monitoring efforts for all FECs, and target efforts to address data gaps, such as for food species.

Tracking trends in Arctic marine vertebrates.

2.1 The trend for marine fish is very similar to the trend for all marine species, increasing from 1970 to about 1990 and then levelling off. This indicates that the ASTI is strongly influenced by fish trends. Overall, marine mammals also increased, while marine birds showed less change.

2.2 The three ocean regions, Pacific, Atlantic, and Arctic, differed significantly in average population trends with an overall decline in abundance in the Atlantic, a small average increase in the Arctic and a dramatic increase in the Pacific. These differences seem to be largely driven by variation in fish population abundance—there were no significant regional differences for birds or mammals.

2.3 Pelagic fish abundance appears to cycle on a time frame of about 10 years. These cycles showeda strong association with a large-scale climate oscillation.

2.4 The ASTI data set contains population trends for nine sea ice associated species. There were mixed trends among the 36 populations with just over half showing an overall decline.

2.5 The Bering Sea and Aleutian Island (BSAI) region of the Pacific Ocean is well studied, providing an opportunity to examine trends in more detail. Since 1970, BSAI marine fish and mammals showed overall increases, while marine birds declined. However, since the late 1980s, marine mammal abundance has declined while marine fish abundance has largely stabilized.