Editor’s note: Sharks are beautiful, intelligent creatures, but they have been overexploited for decades. Because of their “high market value” industrial fisheries hunt sharks for their fins and other body parts. But it’s difficult to control the protection of the sea predators when they move to unprotected zones or international and local fleets fish in other countries’ fishery zones. The brutal killings of adults, babies, and even pregnant sharks happen while our culture is focused on buying more stuff and attending distracting events.
If sharks went extinct, it would set off a chain reaction. Sharks play an important role in the food chain. Smaller animals like shellfish may go extinct if there were no sharks to eat seals, for example. That would create a ripple effect, causing mass die-offs of otters, seals, and many types of fish due to food scarcity. The chain reaction would continue until its effects were felt on land, with fisheries collapsing in a matter of years. When will humanity wake up and start living with – not against other precious beings?
Every year on July 14th, we celebrate Shark Awareness Day. It is not just a tribute to one of nature’s most misunderstood creatures; it is a call to action. Sharks have cruised the oceans for over 450 million years, playing a vital role in keeping marine ecosystems healthy. But today, these apex predators find themselves under increasing pressure, with many species teetering on the brink of extinction.
Sharks: More Than Just Jaws
Hollywood might portray sharks as mindless killing machines, but this couldn’t be further from the truth. Sharks come in a staggering variety of shapes and sizes, from the filter-feeding giants like the whale shark to the sleek and speedy blue shark. They possess incredible senses, like electroreception, that allows them to detect electrical fields emitted by prey, and an amazing ability to navigate vast distances.
As apex predators, they help maintain the balance by regulating the populations of species below them in the food chain. This includes controlling the numbers of mid-level predators and helping to ensure species diversity among smaller fish and invertebrate populations. Their feeding habits help keep marine ecosystems healthy and functional. For instance, by preying on weak or sick individuals, sharks help prevent the spread of disease and ensure a healthier gene pool within the prey population. Their disappearance could have devastating consequences, leading to population explosions of prey species and ultimately, the collapse of entire ecosystems.
A Cause for Alarm: Why Are Sharks Endangered?
Despite their importance, many shark species are alarmingly close to extinction. According to the International Union for Conservation of Nature (IUCN), over one-third or 30% of shark species are either vulnerable, endangered or critically endangered. Some of the most threatened species include the Great Hammerhead, the Oceanic whitetip, and the Basking shark.
The main culprit behind this is overfishing. Driven by demand for shark fins (a prized ingredient in shark fin soup) and meat, millions of sharks are caught every year, often through unsustainable practices like finning, where fins are removed and the body discarded.
Another major threat is habitat loss. Sharks rely on healthy coral reefs and mangroves for breeding and feeding. However, these vital ecosystems are being degraded by pollution, climate change, and coastal development.
A Ray of Hope: Conservation Efforts Underway
The silver lining in the story of sharks is the growing awareness and effort towards their conservation. Governments, NGOs, and international bodies are working together to protect these magnificent creatures:
Protected Areas: Many marine protected areas (MPAs) have been established to provide safe havens for sharks where fishing is restricted or banned. One notable example of a Marine Protected Area (MPA) that provides a safe haven for sharks is the Chagos Marine Reserve in the Indian Ocean. This reserve is one of the world’s largest marine protected areas and encompasses a variety of marine environments. It offers significant protection to various shark species, among other marine life, by enforcing strict regulations that limit fishing and other extractive activities.
Another example is the Jardines de la Reina National Park in Cuba, which has been particularly successful in conserving shark populations. This MPA provides a refuge for several species of sharks and has implemented strict no-take policies and eco-tourism guidelines that help maintain the health and biodiversity of its waters.
Deadly Predators
Deadly predators, Under the sea and on land But, what’s more deadly? A razor sharp, swimming shark Or the end of marine life?
Poem by @saf_begum
Regulations and Bans on Shark Finning: Shark finning, the brutal practice of removing a shark’s fins and discarding the rest of the body, has prompted global action through stringent regulations and international cooperation. Many countries now enforce laws that require sharks to be landed with fins naturally attached, enhancing sustainable practices and compliance. Furthermore, international agreements like CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) play a critical role in regulating the trade of endangered shark species to ensure their survival. These efforts are crucial in curbing unsustainable exploitation, promoting marine conservation, and supporting the recovery of shark populations worldwide.
Sustainable Fishing Practices: Minimizing bycatch, the accidental capture of non-target species in fisheries, is crucial for preserving marine biodiversity, including sharks. Sustainable practices such as gear modification, implementing time and area closures, and employing bycatch reduction devices can significantly reduce unintended catches. Regulations that require fisheries to use circle hooks and turtle excluder devices (TEDs) help prevent the capture of non-target species like sharks and turtles. Additionally, real-time management of fisheries based on immediate data and promoting consumer awareness through eco-labeling, as mandated by organizations like the Marine Stewardship Council (MSC), can drive demand towards sustainably harvested seafood. These strategies not only help conserve marine species but also enhance the overall health of marine ecosystems and support the economic stability of fishing-dependent communities.
This Shark Awareness Day, let’s not only admire the majestic Great Whites and the elusive deep-sea dwellers but also ignite a global commitment to safeguard their future. Every shark species plays a pivotal role in marine ecosystems, balancing marine life and ensuring the health of our oceans.
Today, we must transcend admiration and take decisive action. Let’s pledge to protect these magnificent creatures, understanding that saving sharks is fundamentally about preserving the entire marine ecosystem. By protecting sharks, we are not just saving individual species; we are investing in the health and sustainability of our entire ocean. Join us in this crucial mission—educate, advocate, and participate. Together, we can turn the tide for sharks and secure a vibrant future for our blue planet.
BioDB
BioDB is a new, non-profit website that serves as a dynamic hub for wildlife conservation enthusiasts while advocating for protecting our planet’s invaluable biodiversity. With a primary goal of raising awareness and mobilizing funds for selected non-governmental organizations (NGOs) dedicated to wildlife conservation, BioDB offers a comprehensive platform for individuals and organizations passionate about positively impacting our natural world. https://biodb.com/
Editor’s note: The author asks if that is a good thing. The short answer is no. For the same reason, agriculture is bad for the land, aquaculture is bad for the ocean. It is because humans have overcaught wild fish and depleted their numbers that people have more and more gone to aquaculture. There are now just too many human mouths to feed and not enough fish in the oceans.
Both aquaculture and fisheries have environmental and climate impacts — and they overlap more than you’d think
A new report from the United Nations’ Food and Agriculture Organization, or FAO, has found that more fish were farmed worldwide in 2022 than harvested from the wild, an apparent first.
Last week, the FAO released its annual report on the state of aquaculture — which refers to the farming of both seafood and aquatic plants — and fisheries around the world. The organization found that global production from both aquaculture and fisheries reached a new high — 223.3 million metric tons of animals and plants — in 2022. Of that, 185.4 million metric tons were aquatic animals, and 37.8 million metric tons were algae. Aquaculture was responsible for 51 percent of aquatic animal production in 2022, or 94.4 metric tons.
The milestone was in many ways an expected one, given the world’s insatiable appetite for seafood. Since 1961, consumption of seafood has grown at twice the annual rate of the global population, according to the FAO. Because production levels from fisheries are not expected to change significantly in the future, meeting the growing global demand for seafood almost certainly necessitates an increase in aquaculture.
Though fishery production levels fluctuate from year to year, “it’s not like there’s new fisheries out there waiting to be discovered,” said Dave Martin, program director for Sustainable Fisheries Partnerships, an international organization that works to reduce the environmental impact of seafood supply chains. “So any growth in consumption of seafood is going to come from aquaculture.”
A worker removes a stack of oyster baskets during harvest. Bloomberg Creative / Getty Images via Grist
But the rise of aquaculture underscores the need to transform seafood systems to minimize their impact on the planet. Both aquaculture and fisheries — sometimes referred to as capture fisheries, as they involve the capture of wild seafood — come with significant environmental and climate considerations. What’s more, the two systems often depend on each other, making it difficult to isolate their climate impacts.
“There’s a lot of overlap between fisheries and aquaculture that the average consumer may not see,” said Dave Love, a research professor at the Center for a Livable Future at Johns Hopkins University.
Studies have shown that the best diet for the planet is one free of animal protein. Still, seafood generally has much lower greenhouse gas emissions than other forms of protein from land-based animals. And given many people’s unwillingness or inability to go vegan, the FAO recommends transforming, adapting, and expanding sustainable seafood production to feed the world’s growing population and improve food security.
But “there’s a lot of ways to do aquaculture well, and there’s a lot of ways to do it poorly,” said Martin. Aquaculture can result in nitrogen and phosphorus being released into the natural environment, damaging aquatic ecosystems. Farmed fish can also spread disease to wild populations, or escape from their confines and breed with other species, resulting in genetic pollution that can disrupt the fitness of a wild population. Martin points to the diesel fuel used to power equipment on certain fish farms as a major source of aquaculture’s environmental impact. According to an analysis from the climate solutions nonprofit Project Drawdown, swapping out fossil fuel-based generators on fish farms for renewable-powered hybrids would prevent 500 million to 780 million metric tons of carbon emissions by 2050.
Other areas for improvement will vary depending on the specific species being farmed. In 2012, a U.N. study found that mangrove forests — a major carbon sink — have suffered greatly due to the development of shrimp and fish farming. Today, industry stakeholders have been exploring how new approaches and techniques from shrimp farmers can help restore mangroves.
Meanwhile, wild fishing operations present their own environmental problems. For example, poorly managed fisheries can harvest fish more quickly than wild populations can breed, a phenomenon known as overfishing. Certain destructive wild fishing techniques also kill a lot of non-targeted species, known as bycatch, threatening marine biodiversity.
But the line between aquaculture and fish harvested from the wild isn’t as clear as it may seem. For example, pink salmon that are raised in hatcheries and then released into the wild to feed, mature, and ultimately be caught again are often marketed as “wild caught.” Lobsters, caught wild in Maine, are often fed bait by fisherman to help them put on weight. “It’s a wild fishery,” said Love — but the lobster fishermen’s practice of fattening up their catch shows how human intervention is present even in wild-caught operations.
On the flipside, in a majority of aquaculture systems, farmers provide their fish with feed. That feed sometimes includes fish meal, says Love, a powder that comes from two sources: seafood processing waste (think: fish guts and tails) and wild-caught fish.
All of this can result in a confusing landscape for climate- or environmentally-conscientious consumers who eat fish. But Love recommends a few ways in which consumers can navigate choice when shopping for seafood. Buying fresh fish locally helps shorten supply chains, which can lower the carbon impact of eating aquatic animals. “In our work, we’ve found that the big impact from transport is shipping fresh seafood internationally by air,” he said. Most farmed salmon, for example, sold in the U.S. is flown in.
From both a climate and a nutritional standpoint, smaller fish and sea vegetables are also both good options. “Mussels, clams, oysters, seaweed — they’re all loaded with macronutrients and minerals in different ways” compared to fin fish, said Love.
The critically endangered Devils Hole pupfish population has reached a 25-year high of 191 fish, offering hope for the species that lives in the smallest known habitat of any vertebrate.
Above water and SCUBA surveys conducted by scientists twice a year carefully monitor the pupfish population in Death Valley, Nevada, which has fluctuated dangerously in the past, dropping as low as 35 individuals in 2013.
A landmark 1976 Supreme Court decision, informed by environmental science, protected the pupfish by limiting groundwater pumping that threatened its habitat, setting a precedent for science-based conservation policy.
Despite recent success, the pupfish remains threatened by climate change impacts on the delicate desert ecosystem, as well as growing human demand for water resources in the region.
In a glimmer of hope for one of the world’s rarest fish, scientists have counted 191 Devils Hole pupfish this spring in their tiny desert habitat. This number marks the highest spring count for the critically endangered species in more than two decades.
The Devils Hole pupfish (Cyprinodon diabolis) is found only in the upper reaches of a single deep limestone cave in the Mojave Desert in the western U.S. state of Nevada. The entire species lives on a shallow rock shelf measuring 3.3 by 4.8 meters (11 by 16 feet), making this the smallest known range of any vertebrate species on the planet.
Twice a year, biologists from the National Park Service, U.S. Fish and Wildlife Service, and Nevada Department of Wildlife peer from scaffolding above the pond and then enter the water with scuba gear to count pupfish in Devils Hole. They methodically comb the entire habitat, from the sunny shallows to depths of more than 30 m (100 ft), looking for the iridescent blue desert dwellers.
“It was really encouraging to see such a large number of young fish during these spring dives,” said Brandon Senger, supervising fisheries biologist for the Nevada Department of Wildlife, who has been conducting scuba counts at Devils Hole since 2014. “Conditions within Devils Hole looked healthy, so we have hopes of high recruitment over the coming months that will lead to a large population in the fall.”
Nearly the entire natural range of the species is visible in this photo. The equipment is used to monitor the water level. Photo courtesy of Pacific Southwest Region USFWS (CC BY 2.0).
The Devils Hole pupfish is a marvel of adaptation. It has evolved to withstand the harsh conditions of its desert habitat, including water temperatures that can reach 34° Celsius (93° Fahrenheit) and extremely low oxygen levels. The pupfish has a unique metabolic rate that allows it to survive on minimal food resources, primarily feeding on the algae that grow on the shallow rock shelf. Its small size and rapid life cycle of just 12 to 14 months enable the species to maintain a population in the confines of its tiny habitat.
Despite these remarkable adaptations, the pupfish has faced numerous threats over the years. The history of conservation efforts for the Devils Hole pupfish is a case study in the interplay between environmental science and policy. In 1952, then-president Harry Truman added Devils Hole to Death Valley National Monument. In the late 1960s, the pupfish faced its first major threat when groundwater pumping by local farms began to lower the water level in Devils Hole, exposing the critical shallow shelf.
In 1976, the Supreme Court ruled that the federal government had a right to protect the water level in Devils Hole, limiting groundwater pumping in the region. The ruling was based on the scientific understanding that the pupfish depended on a stable water level to survive. This case set a precedent for using environmental science to guide policy and legal decisions.
Despite this victory, the pupfish population continued to fluctuate dangerously. In 2013, scientists counted just 35 pupfish, leading to fears that the species could wink out of existence. Careful conservation efforts, including supplemental feedings with special food pellets, have helped bolster their numbers.
A natural disaster may have also contributed to the recent population rebound. Last summer, the remnants of Hurricane Hilary inundated Death Valley National Park, damaging roads and infrastructure. But the silt and clay swept into Devil’s Hole by the floodwaters benefited the pupfish by providing nutrients for algae growth.
“It’s exciting to see an increasing trend, especially in this highly variable population,” said Michael Schwemm, senior fish biologist for the U.S. Fish and Wildlife Service.
However, the future of the Devils Hole pupfish remains uncertain. Climate change is disrupting the delicate desert ecosystem with increasing temperatures and erratic weather events. In recent years, Death Valley has experienced record-breaking heat waves and intense flash flooding.
“As the climate changes, as world temperatures get hotter, Death Valley will get hotter,” Nichole Andler, chief of interpretation for Death Valley National Park, said in an interview. She pointed out that seven of the park’s hottest summers have occurred in the last decade.
Increasing urbanization, recreational use and industrial activities like mining also place greater demands on the aquifer that feeds Devils Hole. Even minor changes in water level can expose critical habitat, imperiling the fish.
Further complicating conservation efforts, the Devil’s Hole pupfish population is highly inbred due to its isolation and small population size, which has led to reduced genetic diversity. Low genetic variation can make the species more vulnerable to disease, environmental changes and developmental abnormalities, posing significant challenges for the pupfish’s long-term survival and recovery.
To safeguard the species, captive-breeding programs are underway to establish a backup population in case of a catastrophic event in the wild. But ultimately, the fate of the Devils Hole pupfish is tied to the health of its unique desert habitat.
“The pupfish is an indicator of the health of the larger ecosystem,” Kevin Wilson, an ecologist with the National Park Service, said in an interview. “By protecting this tiny fish, we’re protecting the aquifer and the entire web of life that depends on it.”
Banner image A group of critically endangered Devils Hole pupfish(Cyprinodon diabolis) photographed in the Devil’s Hole, Nevada. Photo courtesy of Olin Feuerbacher/ USFWS (CC BY 2.0)
Liz Kimbrough is a staff writer for Mongabay and holds a Ph.D. in ecology and evolutionary biology from Tulane University, where she studied the microbiomes of trees.
Citation:
Langhammer, P. F., Bull, J. W., Bicknell, J. E., Oakley, J. L., Brown, M. H., Bruford, M. W., … & Brooks, T. M. (2024). The positive impact of conservation action. Science, 384(6694), 453-458. doi:10.1126/science.adj6598
Editor’s note: Campaigning for protecting wildlife and ecosystems is rarely successful if only fought in court. But in this case, a Peruvian court decided to give the river Maranon rights that would ensure its conservation and protection from oil spills. For this decision, the indigenous groups led by Kukama women have been fighting for their river for over three years. As with many people living on the land they depend on clean water and fertile land to feed their families. Now the court victory gives them the necessary legal foundation to keep on fighting for a life free from ecological disasters.
The decision “establishes a groundbreaking legal framework that acknowledges the inherent rights of natural entities,” said one campaigner.
After years of campaigning, an organization of Indigenous women in Peru’s Loreto province celebrated “a landmark decision” on Tuesday by a court in Nauta, which found that the Marañón River has “intrinsic value” and that its “inherent rights” must be recognized by the government.
The Mixed Court of Nauta ruled that specific rights of the river must be codified, including the right to exist, the right to ecological flow, the right of restoration, the right to be free of pollution, the right to exercise its essential functions with the ecosystem, and the right of representation.
Led by Kukama women, the Huaynakana Kamatahuara Kana Federation in the Parinari district of Loreto began its legal fight on behalf of the Marañón River in 2021, demanding that the state and federal governments protect the waterway from “constant oil spills.”
Petroperu’s Oleoducto Norperuano, or Norperuvian oil pipeline, caused more than 60 oil spills between 1997-2019, and the 28 communities represented by the federation are still recovering from a 2010 oil spill that sent 350 barrels of oil into the river near Saramuro port.
Oil spills not the only threat
Indigenous groups blocked the river in protest in September 2022 after another spill sent 2,500 barrels of crude oil into the Amazon, of which the Marañón is a main tributary.
The Marañón supplies drinking water directly to communities in Loreto, and is a vital habitat for fish that help sustain Indigenous communities.
“We do not live on money. We live from what we grow on our land and our fishing. We cannot live without fish,” Isabel Murayari, a board member of the federation, told the Earth Law Center, when the group filed its lawsuit in 2021.
The Kukama women also aimed to halt infrastructure projects including hydroelectric dams and the Amazon Waterway—recognized as environmental risks by the International Union for Conservation of Nature—and warned that illegal gold mining has left the Marañón with mercury contamination that must be remedied.
Martiza Quispe Mamani, an attorney representing the Huaynakana Kamatahuara Kana Federation, said the “historic ruling is an important achievement of the Kukama women.”
“The fact that the judge of the Nauta Court has declared the Marañón River as a subject of rights represents a significant and transcendental milestone for the protection not only of the Marañón River but also of all rivers contaminated by extractive activities,” said Mamani.
In addition to granting the river inherent rights, the court named the Indigenous group and the Peruvian government as “guardians, defenders, and representatives of the Marañón River and its tributaries.”
Precedent for global river conservation
Loreto’s regional government was ordered to take necessary steps with the National Water Authority to establish a water resource basin organization for the river. The court also required Petroperu to present an updated environmental management plan within six months.
Mariluz Canaquiri Murayari, president of the federation, said the group’s fight to protect the environment in the region “will continue.”
“It encourages us to fight to defend our territories and rivers, which is fundamental,” Murayari said of the ruling. “The recognition made in this decision has critical value. It is one more opportunity to keep fighting and claiming our rights. Our work is fundamental for Peru and the world: to protect our rivers, territories, our own lives, and all of humanity, and the living beings of Mother Nature.”
The women who led the legal action noted that courts in recent years have recognized rights for other waterways, including Colombia’s Atrato River, New Zealand’s Whanganui River, and Canada’s Magpie River.
Monti Aguirre, Latin America director of International Rivers, which supported the federation in its lawsuit, said the ruling “underscores the vital impact of community-led advocacy in safeguarding river ecosystems and sets a crucial precedent for river conservation efforts globally.”
“By recognizing the Marañón River as a subject of rights, this decision is significant not only in terms of environmental protection but also in advancing the rights of nature and the rights of rivers,” said Aguirre. “It establishes a groundbreaking legal framework that acknowledges the inherent rights of natural entities, paving the way for similar legal recognition and protection of rivers worldwide.”
Editor’s note: Grizzly bears weigh around 700, the female up to 800 pounds according to the National Wildlife Federation. In contrast to what one might think they are omnivores and eat insects, grass, berries, roots and other plants in addition to animals like salmon, moose or deer.
“Grizzly bears are large and range in color from very light tan (almost white) to dark brown. They have a dished face, short, rounded ears, and a large shoulder hump.” The hump “gives the bear additional strength for digging” after food or their dens.
Their Latin name reveals what humans have thought about them for a long time – Ursus arctos horriblis. They are perceived as horrible, like a monster. But humans should actually carry that name: homo horribilis, if you think about what chronic harm they do to beautiful wild creatures.
And the bear should be called sapiens (wise) in order to honor them for their wisdom on how to contribute to thriving ecosystems.
Human intolerance, malevolence and habitat destruction spanning two centuries has caused the extermination of grizzly bears over 99% of its historical range.
Grizzly bears were finally listed as a threatened species in 1975 under the protection of the federal Endangered Species Act (ESA).
Dark and deadly forces have gathered political momentum and vow to delist grizzly bears, turning management over to the states. By removing ESA protection, states could sell hunting licenses to trophy hunters. Ranchers could shoot without fear of serious legal repercussions.
Large, relatively secure core landscapes like national parks, designated Wilderness areas and de facto wilderness (“roadless areas” on federal, public land) provide grizzlies the greatest chance at long-term viability.
For decades state and federal bureaucrats, extractive industry lobbyists, and anti-environmental politicians who dominate the Washington gerontocracy have fiercely resisted grizzly bear recovery efforts.
The purpose of the ESA as it applies to grizzlies is to protect the imperiled remnant population and fully recover and maintain healthy, self-sustaining populations in the coterminous 48 states.
Much more action is needed to protect, restore, and reconnect the fragmented ecosystems upon which grizzlies depend so they can re-occupy a significant portion of their original range. Of course, this is far from the real, on-the-ground situation grizzly bears find themselves in today.
Delisting is premature, by a long shot. States lust for blood-money (license fees).
It’s hard to imagine a more ludicrous conceit than delisting grizzly bears, who hang onto life by a thread on 1% of their original range. Colonization of the Northern Rockies is a continuation of the same empire-expanding activities of the 19th Century. We have not yet entered America’s post-colonial era.
Grizzly bears will never genuflect to the absurd quasi-Christian cognitive theories of Old-Testament dominion and chosen-people doctrine. The millennia-old institutionalized religious discrimination that inflames our world today also drives the infantile theatrics of indiscriminate harm to wildlife. “Wasting,” or “smoking” wildlife is adult psychopathy growing in popularity.
Grizzlies meaningful for themselves and ecosystems
Popularity and ‘success,’ which fuels modern moral relativism and situational ethics has turned our world upside-down. Even so, what moral imperative or social norm can one cite to justify killing a grizzly bear and selling its parts?
Radical, ‘literalist’ religious doctrine has abandoned the search for truth and moral tradition in exchange for financial favors from the ruling elite. The age-old ideology of rationalization is used to justify personal and societal indulgence in certain kinds of pleasure – in this case the commercialization, torment, and slaughter of God’s divine creation
Video on efforts to recover grizzly bears
Tearing up wildlife habitat and domesticating Mother Nature’s gifts traces back to the vulgarization and distortion of ideas advanced by the great philosophies of Hagel, Nietzsche and Marx that encouraged reactionary pre-WWII European forms of nihilism and fascism.
From whence will the promise of wisdom emerge to fight the foolishness of ‘white’ onslaught bent on engulfing and uprooting the grizzly’s ancestral birthright?
One bill in Congress, the Northern Rockies Ecosystem Protection Act (S-1531), would significantly improve the level of habitat protection needed to maintain grizzly viability throughout a significant portion of its range.
S-1531 is a science-based bill that would designate 23 million acres of roadless, ecologically important public lands in the Northern Rockies bioregion. It designates much needed biological linkage corridors, reconnecting core habitat areas.
Americans are overwhelmingly supportive of the ESA. It’s time for family, friends, local conservation groups and your Senator to STOP grizzly bear delisting, and support S-1531.
Steve Kelly is an artist and environmental activist. He lives in Bozeman, Montana.
