Managing the global ocean as a system: role of the high seas U. Rashid Sumaila Fisheries Economics Research Unit Sea Around Us project Fisheries Centre, University of British Columbia Vancouver, Canada r.sumaila@fisheries.ubc.ca Conference in Honour of Ivar Ekeland, June 18-20, 2014
Ivar and Me We can communicate in Norwegian: The story of how we met Ivar. We both love the ocean and fish: Norse, Ekeland, Sumaila & others (2012). Sustainability of deep sea fisheries. Marine Policy, 36, 307–320. We believe we need to find better ways to discount the future: Ekeland, Karp, and Sumaila (forthcoming). Equilibrium resource management with altruistic overlapping generations. Journal of Environmental Economics and Management.
Outline of talk Our oceans: How important are they to us? Are our interactions with them sustainable? What is the economic cost of unsustainability? Managing the global ocean requires a system approach.
Our oceans are our lives 60% of the world’s population lives within 60 km of the coast; 50% of the oxygen we breathe generated by the ocean; Regulation of earth’s climate; Crucial for the Earth’s environmental balance & survival.
Our oceans are our lives Cultural and spiritual values; Transport/shipping; Playing grounds for many of us; Support jobs; livelihoods & incomes; Source of animal protein for many. L.Teh D. Varkey 5
Fish as base for many activities Capture fisheries Aquaculture Fishing ports and jetties Seafood processing Fish stocks Marine research Management Marine manufacturing & services, boat building Recreational fisheries & tourism
Importance of fish to food security Annual ocean fish catch is ~80 million t; Fish is a good source of protein, micro-nutrients, minerals and essential fatty acids; Provides 3 billion people up to 15% of dietary animal protein; For low-income food-deficit countries, the contribution of fish to total animal intake is nearly 20%. 3 billion people depend on fish for more than 15% of their dietary intake of animal protein. But, there are some regions where diets are lacking in protein. Here fisheries can have an impact in improving quality of life. FAO, State of World Fisheries and Aquaculture (2009)
Economic contributions of fisheries Gross revenues from marine capture fisheries worldwide are estimated at between US$ 80 and 85 billion annually (FAO, 2009); Total impact throughout the global economy is between US$ 220 and 235 billion in 2003 (Dyck & Sumaila, 2010). To us, fish and invertebrates are a source of fascination. But to many, it is a source of revenue. Currently, gross revenues from marine capture fisheries world wide are estimated….
Marine fisheries employment 260 million people worldwide involved in marine fisheries, including direct and indirect sector To us, fish and invertebrates are a source of fascination. But to many, it is a source of revenue. Currently, gross revenues from marine capture fisheries world wide are estimated…. Top 10 countries providing marine employment Teh and Sumaila (2011): Fish and Fisheries 9
Human-ocean interactions unsustainable
Climate change impacts Physical/Chemical changes in the ocean Biological / ecological changes in the ocean ↑ Sea temperature; ↑ acidification; Δ ocean current pattern; Δ salinity; retreat of sea ice; ↑ coastal hypoxic & oxygen min. zone; ↑ sea level. Physiology; Growth; & Body size. Individual Distribution; Abundance; & Recruitment. Population Species composition; Invasion/extinction. Community Productivity; & Species interaction. Ecosystem ----- Meeting Notes (13-10-04 17:12) ----- one sentence Cheung, Watson & Pauly (2012): Nature
Examples of unsustainability About 20% of the original area of coral reefs lost (Wilkinson, 2008); Sea grasses are disappearing at a rate of 110km2 yr-1 since 1980 (Waycott, 2009); Seaweeds in Zanzibar dying as I speak – climate change blamed; huge economic and social consequences for many on the island especially women; Habitat destruction from bottom trawling. 3 billion people depend on fish for more than 15% of their dietary intake of animal protein. But, there are some regions where diets are lacking in protein. Here fisheries can have an impact in improving quality of life.
Global fish catch and effort Catch (million tonnes) Year 10 20 30 40 50 60 70 80 90 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 Catch Effort is in Gigawatts (per year). Watt is a SI unit of power and is Joules per second. The solar constant includes all types of solar radiation, not just the visible light. It is measured by satellite to be roughly 1.366 kilowatts per square meter (kW/m²) which on average for the whole earth is 1.740×1017 W (or 1.74 x 108 GW or 174 Million GW)
Global fish catch and effort Effort (GW or watts x 109) Catch (million tonnes) 5 10 15 20 25 30 40 50 60 70 80 90 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 Catch Effective effort* Effort is in Gigawatts (per year). Watt is a SI unit of power and is Joules per second. The solar constant includes all types of solar radiation, not just the visible light. It is measured by satellite to be roughly 1.366 kilowatts per square meter (kW/m²) which on average for the whole earth is 1.740×1017 W (or 1.74 x 108 GW or 174 Million GW) *Effective effort indexed on 2000 based on average 2.42% increase annually Watson et al. (2012): Fish and Fisheries
Company financial data Dataset contains information on: 1000 top global fishing companies operating in 43 countries, including many leading maritime countries; Total annual sales value for all companies is about $21 billion or 25% of estimated landed value worldwide. We analyzed pre-tax profit. Plimsoll (2011)
Summary of pre-tax profit data Percent 80 60 40 20 0.02 -0.02 -0.01 0.01 A: Pre-tax profit share of sales for 1000 fishing companies B: Pre-tax profit share of sales for 43 fishing countries Sumaila et al. (2012): PLoS One 16
Subsidies Beneficial subsidies (‘investment’ programs in fish stocks); Capacity-enhancing (harmful) subsidies (‘disinvestment’ programs in fish stocks); Ambiguous subsidies (programs may benefit or harm fish stocks). Khan et al. (2006); Sumaila & Pauly (2006)
Global subsidy estimate Sumaila et al. (2010): J. Bioeconomics
Gains from global fisheries The current picture: Overcapacity in world’s fishing fleets Negative economic benefits when full cost of fishing is accounted for (Sumaila et al., 2012: PLoS One). www.thehindu.com
Global Potential Catch Loss (in million metric t) Srinivasan et al. (2010): J. Bioeconomics
Food security implications Loss of million t of fish per year due to overfishing and other impacts has huge food security implications; It is estimated that more effective management of global fish stocks could create food to avert undernourishment for about 19 million people worldwide. Srinivasan et al. (2010): J. Bioeconomics
Managing the global ocean requires a system approach
Strong human-ocean connection Ocean Environment L.Teh Human well-being
Nudge stakeholders to cooperate Annual shared fisheries catch and landed value across all countries 1950-2006 (Teh & Sumaila, in submission.) Munro (1979): Canadian J. Economics; Sumaila (2013): Book
Climate change fisheries & aquaculture Cheung et al. (2009) Fish & Fisheries 10: 235-251
Buy insurance by protecting a sizable portion of the ocean (e. g Buy insurance by protecting a sizable portion of the ocean (e.g., Lauck et al., 1996)
High seas vs. Exclusive Economic Zones Exclusive economic zones (light blue) and high seas (dark blue)
Highly connected nature of marine ecosystems & their fisheries Very brief slide. Fisheries – we had a good scientific basis to suspect that many fish stocks are targeted on the high seas and in EEZs. Block et al (2011) Nature Doi:10.1038/nature10082 April 15, 2017 Why the ocean is important.
Coastal vs. high seas fisheries Breakdown of high seas and EEZ fisheries (annual average over the period 2000-2010) A) Number of species B) Catch C) Landed Value Implication – close high seas to fishing? Sumaila et al. (In submission.)
Carbon sequestration versus fish value High seas sequesters about 0.448 billion tonnes of carbon annually; Equivalent to 1.644 million tonnes of CO2; Using the social costs of carbon we can estimate a rough value of this ecosystem service; $148 billion per annum (range of $74 - $222 billion); High seas fish catch value $16 billion (10 million tonnes).
The high seas & intra-generational equity: 70% of LV by top 10
Valuation & equity between generations “Egoism is the law of perspectives as it applies to feelings according to which what is closest to us appears to be large and weighty, while size and weight decrease with our distance from things” (attributed to Nietzche, 1844-1900). Future benefits from today’s perspective Value Present Future Discounting in economics
Concluding remarks President Obama announced: Came from D.C. where I attended Sec. John Kerry’s Ocean Conference: Our Ocean 2014. You can find the Secretary’s opening remarks here: http://www.state.gov/secretary/remarks/2014/06/227692.htm President Obama announced: the creation of ~ 2 mil. km2 of marine protected areas; that his administration is to ensure that all fish sold in the US is legal and traceable The President of Kiribati: his country will ban commercial fishing in its waters; The President of Palau: his country will create a National Marine Sanctuary that encompasses 80% of its waters.
Merci! Gratulere Med Dagen, Ivar!