Threats to Sharks
Threats facing Shark populations worldwide are increasing in intensity and scale, highlighting the urgent need for marine conservation.
fear of sharks
The fear of sharks, deeply rooted in misconceptions and sensational media portrayals, significantly impacts efforts to conserve these essential marine predators. Despite their critical role in maintaining healthy ecosystems, this fear leads to widespread apathy and a lack of public support for shark conservation.
As a result, the political will to implement strong protective measures is weak, and sharks remain under-protected despite being increasingly vulnerable due to overfishing and habitat destruction. This lack of understanding perpetuates the view of sharks as dangerous rather than as vital species whose decline could destabilize marine ecosystems and threaten biodiversity on a global scale.
Shark Finning
Globally an estimated 23-73 million sharks are finned each year. This process is as wasteful as slaughtering a rhino for its horn or an elephant for its tusks.
Shark finning is occurring uncontrolled in the majority of the worlds oceans. Of all shark products, the fins have by far the highest commercial value by weight as the main ingredient in shark fin soup. Demand for shark fin has expanded dramatically in the last 20 years. An industry previously limited to one region and certain species has grown to be totally global in nature and to involve virtually all shark species.
This expanded industry is still largely conducted in the “grey market”. Fins change hands for cash in many cases and many transactions are not recorded.
Habitat Destruction
The severe lack of public awareness surrounding marine conservation issues is paving the way to an ecological disaster on a global scale.
The last decade has seen a drastic increase in the scale of threats facing the ocean and its wildlife. Advances in technology have allowed for bigger and more efficient fishing fleets targeting area’s that were once out a reach.
Climate change and pollution are having devastating effects on critical marine environments and the creatures living within them. A once abundant wilderness brimming with life is being plundered at an alarming rate with little understanding or consideration of the possible consequences.
bottom trawling
Bottom trawling is a highly destructive fishing practice that involves dragging heavy nets along the seafloor, causing severe damage to marine habitats.
The process stirs up sediment, reducing water quality and disrupting the habitat for bottom-dwelling organisms. Bottom trawling can lead to long-term ecological damage, depleting fish stocks and reducing the overall health and resilience of marine ecosystems, making it one of the most harmful fishing techniques in use.
The five most popular seafood species commonly caught by bottom trawling are:
- Shrimp – One of the most widely caught species through bottom trawling, especially tropical and cold-water shrimp.
- Cod – A key target of bottom trawling, especially in cold waters like the North Atlantic.
- Haddock – Often caught using bottom trawl nets in northern waters, particularly in the Atlantic.
- Flatfish – Species such as flounder, sole, and halibut are frequently captured by bottom trawlers due to their habitat near the seabed.
- Scallops – Many bottom trawlers specifically target these valuable shellfish, which live on or near the seafloor.
bycatch
Bycatch in commercial fishing is both destructive and wasteful, as it involves the unintentional capture of non-target species like sea turtles, dolphins, sharks, and juvenile fish.
These species are often discarded, dead or dying, contributing to significant waste of marine life. Bycatch harms biodiversity by threatening vulnerable and endangered species, disrupts ecosystems, and diminishes the sustainability of fish populations.
The large-scale loss of marine resources through bycatch highlights the need for more selective and sustainable fishing practices to minimize its environmental impact.
The following five fisheries are known to have some of the highest rates of bycatch:
- Shrimp Trawling – Shrimp trawling has one of the highest bycatch rates in the world, with many non-target species, including fish, sea turtles, and juvenile marine species, unintentionally caught and discarded.
- Bottom Trawling for Groundfish – Fisheries targeting groundfish species like cod, haddock, and flounder often have high bycatch of non-target fish species, invertebrates, and benthic organisms due to the indiscriminate nature of the trawling gear.
- Longline Fisheries for Tuna and Swordfish – Longline fishing results in significant bycatch of non-target species such as sharks, seabirds, and marine mammals, many of which are threatened or endangered.
- Gillnet Fisheries – These fisheries, which target species like salmon and cod, frequently catch non-target species such as marine mammals (dolphins, porpoises), seabirds, and other fish species as bycatch.
- Pelagic Trawl Fisheries for Small Pelagic Fish – Fisheries targeting species like mackerel and herring using pelagic trawls can have substantial bycatch, including juvenile fish of other species and marine mammals like dolphins.
poor protection
Despite their ecological importance, sharks often receive minimal protection due to weak or poorly enforced fishing regulations, limited international agreements, and lack of public awareness. As a result, shark populations are rapidly declining, with many species now threatened or endangered.
The following five countries are often cited for having some of the lowest levels of protection for sharks due to limited regulations, weak enforcement, or high levels of shark fishing:
Japan – Japan is a significant player in shark fishing and has been slow to adopt international protections for sharks, especially in relation to the fin trade and other shark products.
China – As the largest market for shark fin consumption, China has historically had weak regulations on shark finning, although recent measures have sought to reduce demand.
Indonesia – Indonesia is one of the world’s largest shark fishing nations, with limited protections and enforcement for shark populations, contributing to significant overfishing.
India – India has high levels of shark fishing, with limited regulatory measures in place to protect shark species, despite the country’s significant role in the global shark trade.
Spain – Spain is one of Europe’s largest contributors to shark fishing, particularly in the Atlantic and Mediterranean, with few restrictions on certain shark species.
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