Environmental effects of the COVID-19 pandemic from a (marine) ecological perspective

The 2019-2020 pandemic of the SARS-CoV-2 virus—the cause of the novel COVID-19 disease—is an exceptional moment in modern human history. The abrupt and intense cessation of human activities in the first months of the pandemic, when large parts of the global human population were in lockdown, had noticeable effects on the environment that can serve to identify key learning experiences to foster a deep reflection on the human relationship with nature, and their interdependence. There are precious lessons to be learned. A global, tangible threat was needed to trigger a global lockdown, where different societies adopted different strategies and management measures to adapt or transform their activities. Humanity is still coming to terms with how to relaunch the economy while preventing further outbreaks. Here, I summarize the immediate positive and negative effects that the pandemic has had on the natural environment, with emphasis on marine ecosystems. I reflect on key lessons learned from this unprecedented situation so far. The essential role that the oceans play in maintaining the functioning of natural systems and key socio-economic activities is exceptionally relevant, and I discuss key not-to-miss opportunities to add the ‘Blue Recovery’ to the international agenda under the new ‘Build Back Better’ or ‘Healthy Recovery’ context after the acute phase of COVID-19. Achieving sustainable use of the ocean is one of the grand challenges of the new decade, and marine ecologists must play a more proactive role.

Combining love and knowledge to heal the ocean

Despite decades of management and conservation efforts, we have seen only limited success in rebuilding marine life and restoring ocean ecosystems from human-inflicted damage on a global scale. I suggest that we need to harness both our emotional (love) and rational (knowledge) sides to create a more powerful movement to heal the ocean and rebuild its abundance and diversity. Love and compassion fuel our desire and urge for change and provide a compass that can guide our actions. Science and knowledge provide ways for collecting and interpreting data and information that can enhance our understanding and support our decisions and actions. Combining our emotional and rational sides can inspire our thinking and transform our actions in new, creative ways. In order to affect wide-ranging and long-lasting change, love and knowledge need to work together to transform our collective relationship with the ocean.

From science only to science for conservation: a personal journey

Long-term studies of whales, dolphins, and porpoises (the cetaceans) in nature abruptly began about 50 yr ago, preceded by several decades of terrestrial animal studies, often of charismatic large mammals. Fifty years ago, intensive whaling was still occurring, and arguments against whaling largely centered around impending extinctions due to over-hunting, not the idea that cetaceans should not be killed due to natural or inherent goodness. In the 1970s, several USA and other government agencies promulgated rules to help control pollution and other insults to nature, often effective in the short term but not in stopping an overall decline in the health of nature. While there appeared a general societal awakening towards greater appreciation of nature and intrinsic animal rights, researchers largely stayed focused on their research, with little attention to using knowledge to increase ecosystem and animal health. Attitudes of direct scientific involvement in calling for environmental action have changed, as it is becoming increasingly (but not universally) appreciated that researchers who know the problems are well-suited to alert governments, industry, and society to them, and loudly call for action. I have no good answers for how to accomplish large-scale rapid reversals of environmental declines. One laudable action is to be an active vocal part of appropriate web-based conservation advocacy groups. Involving the young of all genders and races for a groundswell of support is likely most effective in generating a new world view of so much respect for nature that we radically alter our present ways of subjugating and diminishing it in the name of supposed human progress. Above all, we scientists must no longer dither with opinions on environmental problems and urgent needs for action; we must proclaim them intelligently, forcefully, and as broadly as possible.

Healing the wounds of marine mammals by protecting their habitat

Important marine mammal areas (IMMAs)—‘discrete habitat areas, important for one or more marine mammal species, that have the potential to be delineated and managed for conservation’ (IUCN Marine Mammal Protected Areas Task Force 2018, p. 3)—were introduced in 2014 by the IUCN Marine Mammal Protected Areas Task Force to support marine mammal and wider ocean conservation. IMMAs provide decision-makers with a user-friendly, actionable tool to inform them of the whereabouts of habitat important for marine mammal survival. However, in view of their non-prescriptive, evidence-based and biocentric nature, the conservation effectiveness of IMMAs is strictly dependent on politicians’ willingness to make use of them. It has been the customary task of advocacy non-governmental organisations to lobby decision-makers to stimulate respect for environmental law, but the scientific community is increasingly joining this effort. Scientists can effectively strengthen a healthy relationship between scientific objectivity and political advocacy without damaging the credibility of conservation science. Thus, those undertaking the identification of IMMAs can be among those responsible for strongly advocating the implementation of IMMAs and other conservation initiatives.