Ocean Futures Under Ocean Acidification, Marine Protection, and Changing Fishing Pressures Explored Using a Worldwide Suite of Ecosystem Models

Type Article
Date 2018-03
Language English
Author(s) Olsen Erik1, Kaplan Isaac C.2, Ainsworth Cameron3, Fay Gavin4, Gaichas Sarah5, Gamble Robert5, Girardin Raphael6, Eide Cecilie H.1, Ihde Thomas F.7, Morzaria-Luna Hem Nalini8, 9, 10, Johnson Kelli F.11, Savina-Rolland MarieORCID12, Townsend Howard13, Weijerman Mariska14, Fulton Elizabeth A.15, 16, Link Jason S.17
Affiliation(s) 1 : Inst Marine Res, Bergen, Norway.
2 : NOAA, Conservat Biol Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA USA.
3 : Univ S Florida, Coll Marine Sci, St Petersburg, FL USA.
4 : Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, Dept Fisheries Oceanog, New Bedford, MA USA.
5 : NOAA, NMFS, Northeast Fisheries Sci Ctr, Woods Hole, MA USA.
6 : NOAA, Long Live Kings, Northwest Fisheries Sci Ctr, Natl Manne Fisheries Serv, Seattle, WA USA.
7 : Morgan State Univ, PEARL, St Leonard, MD USA.
8 : CEDO Intercultural, Tucson, AZ USA.
9 : CEDO Intercultural, Puerto Penasco, Mexico.
10 : NOAA, Northwest Resource Anal & Monitoring Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA USA.
11 : NOAA, Fishery Resource Anal & Monitoring Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA USA.
12 : French Res Inst Exploitat Sea, Brest, France.
13 : Natl Marine Fisheries Serv, Cooperat Oxford Lab, Off Sci & Technol, Oxford, MD USA.
14 : NOAA, Ecosyst Sci Div, Pacific Isl Fisheries Sci Ctr, Natl Marine Fisheries Serv, Honolulu, HI USA.
15 : CSIRO Oceans & Atmosphere, Hobart, Tas, Australia.
16 : Univ Tasmania, Ctr Marine Socioecol, Hobart, Tas, Australia.
17 : NOAA, Natl Marine Fisheries Serv, Woods Hole, MA 02543 USA.
Source Frontiers In Marine Science (2296-7745) (Frontiers Media Sa), 2018-03 , Vol. 5 , N. 64 , P. 23p.
DOI 10.3389/fmars.2018.00064
WOS© Times Cited 7
Keyword(s) ecosystem-based management, fisheries management, ocean acidification, marine protected areas, Atlantis ecosystem model
Abstract

Ecosystem-based management (EBM) of the ocean considers all impacts on and uses of marine and coastal systems. In recent years, there has been a heightened interest in EBM tools that allow testing of alternative management options and help identify tradeoffs among human uses. End-to-end ecosystem modeling frameworks that consider a wide range of management options are a means to provide integrated solutions to the complex ocean management problems encountered in EBM. Here, we leverage the global advances in ecosystem modeling to explore common opportunities and challenges for ecosystem-based management, including changes in ocean acidification, spatial management, and fishing pressure across eight Atlantis (atlantis.cmar.csiro.au) end-to-end ecosystem models. These models represent marine ecosystems from the tropics to the arctic, varying in size, ecology, and management regimes, using a three-dimensional, spatially-explicit structure parametrized for each system. Results suggest stronger impacts from ocean acidification and marine protected areas than from altering fishing pressure, both in terms of guild-level (i.e., aggregations of similar species or groups) biomass and in terms of indicators of ecological and fishery structure. Effects of ocean acidification were typically negative (reducing biomass), while marine protected areas led to both “winners” and “losers” at the level of particular species (or functional groups). Changing fishing pressure (doubling or halving) had smaller effects on the species guilds or ecosystem indicators than either ocean acidification or marine protected areas. Compensatory effects within guilds led to weaker average effects at the guild level than the species or group level. The impacts and tradeoffs implied by these future scenarios are highly relevant as ocean governance shifts focus from single-sector objectives (e.g., sustainable levels of individual fished stocks) to taking into account competing industrial sectors' objectives (e.g., simultaneous spatial management of energy, shipping, and fishing) while at the same time grappling with compounded impacts of global climate change (e.g., ocean acidification and warming).

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Olsen Erik, Kaplan Isaac C., Ainsworth Cameron, Fay Gavin, Gaichas Sarah, Gamble Robert, Girardin Raphael, Eide Cecilie H., Ihde Thomas F., Morzaria-Luna Hem Nalini, Johnson Kelli F., Savina-Rolland Marie, Townsend Howard, Weijerman Mariska, Fulton Elizabeth A., Link Jason S. (2018). Ocean Futures Under Ocean Acidification, Marine Protection, and Changing Fishing Pressures Explored Using a Worldwide Suite of Ecosystem Models. Frontiers In Marine Science, 5(64), 23p. Publisher's official version : https://doi.org/10.3389/fmars.2018.00064 , Open Access version : https://archimer.ifremer.fr/doc/00428/53948/