SDG #14 - Life Below Water

Dashboard map for 2022 SDG Index Goal #14 ratings. Data source: sdgindex.org

Mean area protected in marine sites important to biodiversity (%)

Goals #14 & #15 are the biodiversity goals. We’re amid a crisis of enormous magnitude when it comes to mass species extinction, and we’re in a real pickle with oceans and seas, or pickle juice, to be more apt.

The 2022 SDG Index results for this Goal and first indicator, see many countries scoring red. Protected marine areas are the marine equivalent to national parks. Their existence means we get to preserve habitats of species crucial in Key Biodiversity Areas, which shelter the greatest concentrations of biodiversity. Protected marine areas allow marine life to catch its breath, a chance to regenerate from what humanity has subjected it to, crucial to the future health of life on this planet. I’ll expand more on the importance of protected areas in the following chapter, which mirrors Goal #14 except for terrestrial and freshwater life, rather than marine life. Marine protected areas include saltwater environments, whether in the seas and oceans, or in estuaries where the water is brackish, home to ecosystems of myriad species of plants, animals, and all kinds of organisms.

The title for the largest protected area in the world goes to the Marae Moana in the Cook Islands, at 2 million square km. The World Database on Protected Areas, which collates all the world’s protected areas, counted an approximate 17,781 marine protected areas at the time of writing, equal to 8% of the planet’s marine area.

Humans have a propensity to view nature through the prism of the resources it can offer us. Though since industrialisation, we're yet to account for sustainability, paying far too little attention to conserving nature. Ecosystems can offer us plentiful services, but with this comes the responsibility to act with sustainability and reverence. Extraction of natural resources can be quite ugly, and we ought to give pause to our attitudes of how we treat the environment offering its services.

If we shun such protection, we know the risks: greater ocean acidification due to oceans absorbing carbon dioxide and other greenhouse gases. We know what happens when petrochemicals or petroleum spill or leak into marine environments. Even tourism can degrade environments unless managed.

None of us can declare a legal marine protected area in an area important to biodiversity, thus our sole route is to advocate for protected areas to the government.

Summary: Contact your government representative overseeing marine protected areas in your country or region, requesting the government protect 100% of marine Key Biodiversity Areas.

Ocean Health Index: Clean Waters score (worst 0-100 best)

The Clean Waters score is one component of the broader Ocean Health Index, measuring within each country’s maritime jurisdiction the level of contamination from four categories of pollution:

  • chemicals (oil or toxic spills from maritime vessels; agricultural pesticide/herbicide runoff)

  • nutrients (agricultural fertilisers)

  • pathogens (untreated sewage; livestock waste)

  • trash

The highest score for the Clean Water goal is 100, with 0 being the poorest result. What can you get right as an individual to improve your country’s score in the Clean Waters goal of the Ocean Health Index? How can you help achieve the 2030 aim of a score of 100 for the goal?

It is doubtful readers will be spilling oil into marine environments. But what about our demand for commercial shipping, and our consumption of goods produced and transported using a global supply chain? This creates opportunities to release chemical effluent in ports and shipping traffic. In this sense, you can reconsider any imported goods you’re demanding which require shipping. Yet it can be difficult to consider what all the inputs are going into a final product. You might buy a packet of biscuits from the supermarket, manufactured in your country, but with some of the ingredients imported, and what is the source of the packaging?

As we’ve seen, fertilisers, pesticides and herbicides used in agriculture can find their way into the marine environment. You can think about the foods you buy, and consider whether organic or another sustainable alternative may be worth considering. It’s also possible for chemicals from urban environments to find their way into the seas, therefore worth thinking about how you handle chemicals.

Where negligible wastewater treatment facilities exist, this means viruses and bacteria from sewage can make their way back into the water cycle in which marine life abodes and people swim.

You’ve got a broad sense of how perilous the state of water quality is for much of the world due to human activity. Please consider how your actions may drive some of the above instances where you can place pressure upon the health of oceans.

Summary: For readers in countries off-track, keep water clean via avoiding being responsible for the release of the above four pollutants, aiming for the best score in the Ocean Health Index’s Clean Water goal.

Fish caught from overexploited or collapsed stocks (% of total catch)

Each country with a coastline, by way of a UN treaty, has authority within the bounds of the coastline, known as the exclusive economic zone (EEZ), where countries can exploit and explore the marine resources. The definition of this EEZ is 200 nautical miles from the coastline, equal to 370 km.

This indicator measures those species within an EEZ classified as overexploited or collapsed, with a 2030 aim to catch 0% of fish from overexploited or collapsed fish stocks. Estonia scores highest, with only 1% of its fish caught from overfished stocks.

Fish populations are declining as humans overfish, depleting a resource, as humanity is wont to do. This also has knock-on effects on the surrounding marine environment, placing at risk species to become threatened with extinction. Such stocks are harvested for commercial fishing, including apex predators like threatened shark species, and invertebrates like coral, sponges, and shrimp. This risks a ‘regime shift’ within an ecosystem, when a complex system alters due to the collapse of a species’ stock, with far-ranging ramifications beyond the ecosystem. A destructive pattern of subsidising fishing compounds trends leading to overfishing, leaving such regions afflicted for decades.

Aquaculture - in contrast to wild fisheries - is a step toward sustainable fishery. But would you like to be trapped in a net, a web of nylon between you and unlimited oceans? Picture yourself trapped, deprived of exploring such oceans, swimming cheek-by-jowl with your brethren, in a tumultuous soup of each other's excrement.

We’re served by taking a step beyond aiming for a sustainable fishery to instead avoid seafood altogether, based on an ethic of veganism. You could also use the source of this indicator, the Environmental Performance Index, to identify overexploited and collapsed species of fish in your country’s EEZ, and instead avoid these species from your consumptive habits.

Summary:

  • plant-based diet

  • end the catch of fish from overexploited or collapsed stocks by 2030

Fish caught by trawling and dredging (%)

The 2030 aim for this indicator is to catch 1% or less of fish by trawling and dredging. Some trawler nets on commercial fishing vessels are the size of a gridiron field. Is this a level playing field with our prey? Dredging drags the surface of the sea floor, excavating the floor itself, plus all the superfluous fish it catches.

I know humans enjoy oysters, crabmeat, or scallops, but is it worth excavating the bottom of the sea for these culinary delights? If you’re going to buy seafood, give a wide berth to seafood imported from the countries scoring red for this indicator (Uruguay, Morocco, Albania, Bulgaria, Vietnam, and Cambodia in the 2022 Index). For fishermen in these countries, keep trawling and dredging to below 1% of your catch.

Summary:

  • plant-based diet

  • reduce fish caught by trawling or dredging to 1% by 2030

Fish caught that are then discarded (%)

The aim of this indicator is to end the discarding of fish by 2030. Discards occur in the enterprise of fishery, whereby fishing nets capture species and sizes of fish other than those sought. For instance, professional fishers may be seeking large tuna fish, but in the process, catch a myriad of smaller fish of little economic value. These fish are instead discarded, known as bycatch.

There’s also a bit of political chicanery at play, whereby fishermen sometimes discard fish to sneak under quotas, or discard for minimum landing sizes classifying the legal fish measurements to keep and sell.

In the absence of these smaller fish, of negligible worth for human use, there are knock-on effects on the food web it leaves behind, both to aquatic life and seabirds.

Fisheries ought to be better managed than they are, due to the enforcement of existing laws and regulations, if they exist at all. The mindset of those in the fishing industry needs to be mindful of what they’re doing too.

The other Goal #14 indicators may suggest your country’s EEZ can sustain its fisheries population, but my emphatic suggestion is to abstain from eating fish and seafood altogether. It’s delicious, but unsustainable.

Summary: Plant-based diet, aiming to end fish discarding.

Marine biodiversity threats embodied in imports (per million population)

This indicator draws upon a research article published in the academic journal Nature, which found demand from international trade was the culprit for propelling biodiversity loss - another example of spillover effects from developed countries via imports. The aim is to end marine biodiversity threats embodied in imports by 2030. Only a couple of countries with populations over a million have scored red for this indicator in the 2022 SDG Index: Japan, Singapore, UAE and Mauritius.

SDG #14 illuminates the destruction humans are waging on marine life and habitats in the form of overfishing, invasive species and pollution. Our habits as a species are to unleash industrial, agricultural and residential waste to the wilds. As we spew carbon dioxide into the atmosphere, the oceans take it up, altering the acidity. The effect will be sea level rise. The food webs may collapse if fish stock populations decline from overexploitation. We know from the chapters on Goals #2 and #12 the effects of nutrient pollution entering water bodies, in particular nitrogen and phosphorus, causing eutrophication, and deoxygenating the water.

Humanity is accelerating extinction, and international trade is accelerating this furthermore. Per the results of the research underlying this indicator, the countries who were the top net exporters of biodiversity threats are Indonesia, Madagascar, Papua New Guinea, Malaysia and Philippines. As such, countries off-track should be most mindful of creating demand for imports from these exporting countries. Further evidence can be found within the source article for this indicator’s data.

Summary: For readers in countries off-track, buy domestic alternatives to imported goods or services, in particular from the above-listed countries, aiming to eliminate all marine biodiversity threats embedded in imports.