Blast fishing destroys the calcium carbonate coral skeletons and is one of the continual disruptions of coral reefs. In the Indo-Pacific, the practice of blast fishing is the main cause of coral reef degradation. As a result, weakened rubble fields are formed and fish habitat is reduced.
What is the issue of blast fishing?
Blast fishing usually occurs over coral reefs, shattering the coral and destroying these biodiversity hotspots for decades to come – it is thought that it may take more than a century before reefs return to normal. It’s also dangerous; devices sometimes explode prematurely, causing serious injuries and deaths.
Why are the negative effects of destructive fishing?
Overfishing (i.e., catching more fish than the system can support) leads to declines in fish populations, ecosystem-wide impacts, and impacts on dependent human communities. Destructive fishing methods include the use of explosives to kill or stun fish, which destroys corals.
Why is blast fishing unsustainable?
When fish populations decline, particularly those that feed on algae, algae can grow unchecked, eventually smothering corals. Other unsustainable fishing practices can physically destroy entire sections of coral reefs—for example, blast fishing destroys 64 square feet (5.9 square meters) of reef with a single blast.
What’s the effect of dynamite fishing?
Dynamite fishing is a major conservation concern as the blasts from the bombs fragment the calcium carbonate coral skeletons and reduce the reefs to rubble. This destroys important habitat and nesting sites for many fish and invertebrate species.
What is solution of dynamite fishing?
The solutions to dynamite fishing include the implementation and enforcement of laws that ban the practice.
What are the negative effects of fishing?
Over-fishing can result in the over-exploitation of marine ecosystem services. Fishing can cause several negative physiological and psychological effects for fish populations including: increased stress levels and bodily injuries resulting from lodged fish hooks.
Why is dynamite fishing being prohibited?
The explosives used destroy the marine environment, leaving it devoid of life. Dynamite fishing has contributed to massive destruction of Southeast Asian coral reefs over the past 20 years. … Dynamite fishing is one of the most pervasive fishing techniques and it is banned by most countries.
What is the most harmful way of fishing?
Overview. The narrowest definition of destructive fishing practices refers principally to bottom trawling over vulnerable habitat (shallow corals, deep sea corals, or seagrass, for example), as well as practices such as shark finning, blast fishing, poison fishing, muro-ami, and push netting.
Is blast fishing sustainable?
It destroys fish habitats among reefs already threatened by overfishing and climate change. “Blast fishing is an extremely short-sighted fishing method because it destroys the coral reef on which fisherfolk depend,” said Jerker Tamelander, head of the Coral Reef Unit at UN Environment.
What destruction is caused by dynamite fishing and muro ami?
The pounding devices are repeatedly and violently lowered into the area encircled by the net, literally smashing the coral in that area into small fragments in order to scare the fish out of their coral refuges.
What is the causes of dynamite fishing?
Dynamite fishing may be viewed as something that arose due to economic necessity. Marginal fishers who practice this unsustainable method of fishing appear to be victims of unfair competition imposed by the large, commercial fishers.
How does blast fishing destroy coral reefs?
When the blast occurs, the fish and all other marine life, are stunned or killed – the fishes’ swim bladders, the organ that controls buoyancy, perforate causing them to float to the surface to be scooped up in a net. Not all stunned or dead fish float; many sink to the bottom and are lost.