A study proposing a ban on spear guns and gill nets in the Great Barrier Reef is now being criticised by Australian scientists saying its results – which were obtained from Kenya and Papua New Guinea – aren’t relevant to the Great Barrier Reef.
The study, carried out by an international team of scientists led by Dr Josh Cinner from the ARC Centre of Excellence for Coral Reef Studies, proposed a ban on fishing gear such as spear guns, fish traps, beach seine nets, and gill nets to aid damaged reefs in their recovery. According to data obtained from the waters of Kenya and Papua New Guinea, certain types of fishing gear are more damaging to corals and to certain species of fish needed to help reefs recover from bleaching or storm damage.
“They [corals and certain types of reef fish] are already on the edge because of the overfishing and the additional impact caused by a bleaching even can push them over,” said Dr Cinner, who is based at James Cook University.
According to Dr Josh, spear guns are the most damaging of all fishing gear, particularly to fish that help maintaining the reef by removing seaweeds and sea urchins.
“Spear guns target a high proportion of species that help maintain the resilience of coral reefs, but also can result in a surprising amount of damage to the corals themselves,” Dr Cinner said. “When a fish is shot with a spear gun, it often hides in the reef, so some fishermen break the corals in their attempts to get it.”
Not applicable to the Great Barrier Reef, says other scientists Fellow JCU fisheries scientist Dr Andrew Tobin do not agree with the fishing gear ban recommendation, saying that the results from the study aren’t applicable to Australia’s Great Barrier Reef.
“Some of those findings are probably very reasonable for those areas they’ve studied, but to make any link to Great Barrier Reef waters is probably drawing a very long sword,” Dr Tobin said.
According to Townsville marine biologist Dr Walter Starck, who provides advice to Sunfish North Queensland, herbivore fish aren’t being overfished in the Great Barrier Reef area.
“Here in Australia, it is completely irrelevant,” he said.
Indonesia will create Southeast Asia’s largest marine park in the Savu Sea, Minister of Marine Affairs and Fisheries Freddy Numberi said on Wednesday at the World Ocean Conference in Manado, Sulawesi.
The Savu Marine National Park will cover 3.5 million hectares in an incredibly diverse area where you can find no less than 500 coral species, over 300 recognized species of fish and a lot of charismatic wildlife like sea turtles, sharks, dolphins and whales. Out of 27 known species of whale, no less than 14 migrate through the Savu Sea to get from the Pacific to the Indian Ocean. The Savu Sea is also an important spawning ground for many marine species, including the world’s dwindling tuna population.
Indonesia is famous for its prosperous marine environment, but this marine flora and fauna are today facing serious treats, including pollution, over fishing and the use of unsustainable fishing methods. Lax enforcement of Indonesian law has made it possible for fishermen to continue using illegal fishing methods such as dynamite and cyanide fishing.
Within the Savu Marine National Park, efforts will be made to eradicate illegal fishing practises while keeping certain areas open for local fishermen to continue traditional subsistence fishing. Tourism activities will also be allowed in certain designated areas within the park. Environmental groups, including WWF and The Nature Conservancy, will help set up the reserve together with the Indonesian government.
“Enforcement is one of the key questions we need to work out, said Rili Djohani”, marine expert at The Nature Conservancy. “It could be a combination of community-based and government patrols.”
The Savu Marine National Park is located within the so called Coral Triangle, a coral reef network bounded by Indonesia, Malaysia, the Philippines, Papua New Guinea, East Timor and the Solomon Islands.