“We are not asking fishermen to stop fishing, only asking them to start releasing their catch,” says marine scientist Edd Brooks.
Brooks is a scientific advisor for the not-for-profit Company Shark-Free Marina Initiative, SFMI, who has just instigated a new strategy for preventing the deaths of millions of sharks belonging to vulnerable or endangered species.
The Shark-Free Marina Initiative works by prohibiting the landing of any caught shark at a participating marina. The initiative is based on the Atlantic billfish model which banned the mortal take of billfish in the 1980’s to give severely depleted populations a chance to recover.
By promoting catch-and-release and working closely with marinas and game fishing societies, SFMI hopes to win over the fishing community. Other important allies in the endeavour are competition sponsors and tackle producers.
Collaborating with the Fisheries Conservation Foundation in the USA and the Cape Eleuthera Institute in the Bahamas, SFMI has already gained the attention of marinas and non-profits nation-wide.
Enlisting the aid of anglers
By practising catch-and-release, sport fishers can not only decrease their impact on shark species; they can also actively aid ongoing research studies by collecting valuable data.
“Although the number of sharks killed by recreational fishermen each year is dwarfed by commercial catches, the current crisis facing shark stocks requires action wherever possible.” says Brooks.
During the last five years, the average number of sharks harvested annually by sport- and recreational anglers in the United States exceeded half a million. The outlook for these shark populations seem even graver when you take into account that many of the sharks targeted by fishermen are large, breeding age specimens belonging to endangered or vulnerable species. Removing so many sexually mature specimens from a population each year naturally has a major impact on its chances of long-term survival.
“Shark-Free Marinas is a necessary response to the culture of mature shark harvest” says SFMI’s Board Director, Marine Biologist Luke Tipple “Our effect will be immediate, measurable and, together with saving millions of sharks, will establish a new global standard for responsible ocean management. There’s a lot of talk about the atrocity of shark fining and fishing worldwide, but not a lot of measurable action towards reversing the damage. The time has come to stop simply ‘raising awareness’ and start implementing sensible management techniques to protect vulnerable species of sharks from inevitable destruction.”
You can find more information at www.sharkfreemarinas.com.
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The 2009 whaling season has now started in the waters off Iceland.
Iceland and Norway are the only two countries that openly defy the international whaling moratorium; Japan is instead using a loop whole, claiming their whaling to be carried out for scientific purposes.
Former Icelandic fisheries minister Steingrimur Sigfusson said in February that Iceland would make no changes to its whaling quotas of 150 Fin whales and up to 150 Minke whales per year.
“The first batch of meat will be in stores by the weekend,” says Gunnar Bergmann Jonsson, manager of the Minke Whaler Association. He said 50 to 60 per cent of the meat will be sold domestically, while the rest is sold to Japan.
The first whales are usually killed in a bay outside Reykjavik, since whaling is prohibited close to the harbour. The prohibition has been imposed to prevent whalers from disturbing whale watchers, since that may cause damage to the Icelandic whale watching business.
The Icelandic whaling season usually runs from May to late September.
Whale facts
Also known as Little Piked Whales or Lesser Rorquals, Mink Whales prefer icy waters but are found world-wide. Once perceived as one single species, the population has quite recently been recognized as consisting of two distinct species: the Northern Mink Whale, Balaenoptera acutorostrata, and the Southern Mink Whale, Balaenoptera bonaerensis. Together, the two species are believed to form a population of over 1 million Minke Whales world-wide. Balaenoptera acutorostrata is listed as Least Concern on the IUCN Red List of Threatened Species, while Balaenoptera bonaerensi is listed as Data Deficient since it was recognized as a separate species so recently.
The Fin Whale (Balaenoptera physalus) is also found world-wide, with 40,000-56,000 specimens living in the North Atlantic. Unlike the Mink Whale, the Fin Whale is listed as Endangered on the IUCN Red List of Threatened Species.
Photograph created by Erik Christensen. Taken on the Faroe island not Island.
The juvenile Hawksbill turtle found near-dead 8 months ago with a plastic shopping bag lodged inside her belly has made a remarkable recovery and has now been released back into the ocean. The Hawksbill turtle is listed as Critically Endangered on the IUCN Red List of ThreatenSped ecies, so each specimen that can be rescued is important for the population.
Eight months ago the young female, who has been dubbed Alva by her caregivers, was found halfway up the beach, upside down, with her head buried in the sand, slowly dying in the sun. She was rushed to Townsville’s Reef HQ turtle hospital where x-rays revealed that a large piece of plastic stuck inside her had caused a severe gut blockage.
In addition to receiving treatment for the blockage, Alva was bathed, scrubbed and hand-fed by the turtle hospital staff who gradually nursed her back to life from the near-death experience.
“We brought it back from brink of death”, said Reef HQ aquarium acting director Fred Nucifora. “That is the miracle.”
On May 21, Alva was deemed healthy enough to return to the sea and was released into the water in the Australian Great Barrier Reef Region.
“It was emotional to say goodbye,” said Nucifora. “We’d like to think Alva turned back and gave us a heartfelt look, but it was barely a glance and, with a flick of the flipper, she was off.”
The first-ever comprehensive global report on the state of shellfish has been released by The Nature Conservancy at the International Marine Conservation Congress in Washington, DC.
This one of its kind report is a collaborative work carried out by scientists from five different continents employed by academic and research institutions as well as by conservation organizations.
The report, which focuses primarily on the distribution and condition of native oyster reefs, show that 85 percent of oyster reefs have been completely destroyed worldwide and that this type of environment is the most severely impacted of all marine habitats.
In a majority of individual bays around the globe, the loss exceeds 90 percent and in some areas the loss of oyster reef habitat is over 99 percent. The situation is especially dire in Europe, North America and Australia where oyster reefs are functionally extinct in many areas.
“We’re seeing an unprecedented and alarming
decline in the condition of oyster reefs, a critically
important habitat in the world’s bays and estuaries,”
says Mike Beck, senior marine scientist at The Nature
Conservancy and lead author of the report.
Many of us see oysters as a culinary delight only, but oyster reefs provide us humans with a long row of valuable favours that we rarely think about. Did you for instance known that oyster reefs function as buffers that protect shorelines and prevent coastal marshes from disappearing, which in turn guard people from the consequences of hurricanes and other severe storm surges? Being filter feeders, oysters also help keep the water quality up in the ocean and they also provide food and habitat for many different types of birds, fish and shellfish.
Even though the situation is dismal, there is still time to save the remaining populations and aid the recuperation of damaged oyster reefs. In the United States, millions of young Olympia oysters have been reintroduced to the mudflats surrounding Netarts Bay in Oregon, in an effort to re-create a self-sustaining population of this native species. The project is a joint effort by government and university scientists, conservation groups, industry representatives, and local volunteers.
“With support from the local community and other partners, we’re demonstrating that shellfish restoration really works”, says Dick Vander Schaaf, Oregon director of coast and marine conservation for the Conservancy. “Expanding the effort to other bays and estuaries will help to ensure that the ecological benefits of oyster reefs are there for future generations.”
If wish to learn more about the global oyster reef situation, you can find the report here.
Thanks to a system of underwater hydrophones, scientists have been able to document the presence of North Atlantic Right whales in an area where they were believed to have gone extinct.
The North Atlantic Right whale (Eubalaena glacialis), where even the name is a reference to it being the “right” whale to hunt, was heavily targeted by whalers during the 19th and 20th century and the entire species was on the brink of extinction when the moratorium on whaling was implemented in the 1960s.
Being an important whaling area throughout the 19th century, Cape Farewell Ground off the southern tip of Greenland was believed to have no surviving population of Right whales, but when scientists from Oregon State University (OSU) and the National Oceanic and Atmospheric Administration (NOAA) begun investigating the area using hydrophones, they recorded a total of 2,012 Right whale “calls” from July through December 2007.
“We don’t know how many right whales there were in the area,” says David Mellinger, assistant professor at OSU’s Hatfield Marine Science Center in Newport and chief scientist of the project. “They aren’t individually distinctive in their vocalizations. But we did hear right whales at three widely space sites on the same day, so the absolute minimum is three. Even that number is significant because the entire population is estimated to be only 300 to 400 whales.”
During the last 50 years no more than two Right whales have been sighted at Cape Farewell Ground, so even a figure as low as three during the same day is good news.
The project has been using five hydrophones engineered by Haru Matsumoto at OSU, configured to continuously record ambient sounds below 1,000 Hz over a large region of the North Atlantic. These underwater hydrophones are sensitive enough to record sounds from hundreds of miles away. The scientists used previous recordings of Atlantic and North Pacific Right whales to identify the species’ distinct sounds, including a type of vocalization known as “up” calls.
“The technology has enabled us to identify an important unstudied habitat for endangered right whales and raises the possibility that – contrary to general belief – a remnant of a central or eastern Atlantic stock of right whales still exists and might be viable,” says Mellinger.
Results of the 2007 study were presented this week at a meeting of the Acoustical Society of America in Portland, Oregon.
In addition to Mellinger and Clapham, scientists involved in the project include Sharon Nieukirk, Karolin Klinck, Holger Klinck and Bob Dziak of the Cooperative Institute for Marine Resources Studies – a joint venture between OSU and NOAA; Phillip Clapham, a right whale expert with NOAA’s National Marine Mammal Laboratory, and Bryndís Brandsdóttir of the University of Iceland.
A Hawaiian company wants to build the world’s first commercial Bigeye tuna farm, in hope of creating a sustainable alternative to wild-caught big eye.
Bigeye tuna, Thunnus obesus, is the second most coveted tuna after the famous Bluefin tuna and the wild populations have been seriously depleted by commercial fishing fleets. As Bluefin is becoming increasingly rare due to over-fishing, consumers are turning their eyes towards Thunnus obesus – which naturally puts even more stress on this species that before.
In 2007, fishermen caught nearly 225,000 tons of wild Bigeye in the Pacific. Juvenile bigeye tuna like to stay close to floating objects in the ocean, such as logs and buoys, which make them highly susceptible to purse seine fishing in conjunction with man-made FADs (Fish Aggregation Devices). The removal of juvenile specimens from the sea before they have a chance to reach sexual maturity and reproduce is seriously threatening the survival of this tuna species.
“All indications are we’re on a rapid race to deplete the ocean of our food resources,” said Bill Spencer, chief executive of Hawaii Oceanic Technology Inc. “It’s sort of obvious _ well, jeez we’ve got to do something about this.”
Techniques to spawn and raise tuna fry are still being tentatively explored by scientists in several different countries, including Australia and Japan. As of today, most tuna farms rely on fishermen catching juvenile fish for them, but Hawaii Oceanic Technology plans to artificially hatch Bigeye tuna at a University of Hawaii lab in Hilo.
Once the young tunas from the lab have grown large enough, they will be placed in the 12-pen tuna farm that Hawaii Oceanic is planning to build roughly 3 miles off Big Island’s west coast. Each pen will have a diameter of 50 metres (168 feet) and the entire farm will be spread out over one square kilometre (250 acres). If everything goes according to plan, this project will yield 6,000 tons of Bigeye per annum. The fish will not be harvested until it reaches a weight of at least 45 kg (100 lbs).
In an effort to avoid many of the common problems associated with large scale commerical fish farmning, Hawaii Oceanic Technology will place their pens at a depth of 1,300 feet (400 metres) where currents are strong. The company also plans to keep their pens lightly stocked, since dense living conditions are known to increase the risk of disease in fish farms.
Farming pens can cause problems for the environment if fish waste and left-over food is allowed to collect under the pens, suffocating marine life living beneath. Other problems associated with fish farming are the release of antibiotics into the water and the escape of invasive species.
Fish farms can also put pressure on fish further down in the food chain since vast amounts of food is necessary to feed densely packed fish pens, and Peter Bridson, aquaculture manager at the Monterey Bay Aquarium in California, is concerned about how much fish meal the Hawaiian farm will use need to feed its tuna.
“You kind of have to come back to the whole debate on whether these fish are the right thing for us humans to be eating,” said Bridson. “There are lots of other things which have a lower impact in terms of how they are farmed.”
Spencer shares this concern and says Hawaii Oceanic wish to eventually develop other ways of feeding their fish, e.g. by creating food from soybeans or algae. It might also be possible to decrease the need for fish meal by recycling fish oil from the farm itself.
“We’re concerned about the environmental impact of what we’re doing,” Spencer said. “Our whole goal is to do this in an environmentally responsible manner.”
An important step in the ground-breaking Clean Seas Tuna breeding program was taken today when millions of dollars worth of Southern Bluefin Tuna was airlifted from sea pens off South Australia’s Eyre Peninsula to an on-shore breeding facility at Arno Bay.
The Southern Bluefin Tuna is a highly appreciated food fish and the remaining wild populations are continuously being ravished by commercial fishing fleets, despite the species status as “critically endangered” on the IUCN Red List of Threatened Species.
The Australian tuna breeding program is the first of its kind and will hopefully help ease the strain on wild populations. The air transfer was made to provide the breeding program with an egg supply ahead of the spawning period.
As reported earlier, the Australian company Clean Seas Tuna managed to successfully produce Southern Bluefin Tuna fingerlings in March this year and they are now hoping to commence commercial production of the species no later than October.
WWF Australia’s fisheries program manager Peter Trott says any advancement that would reduce pressure on wild tuna stocks is welcome, but he also cautions against the environmental problems associated with large-scale aquacultures. It is for instance common to use other fish to feed farmed fish, which can put pressure on wild fish populations.
As reported earlier , the European Union has decided to ban the import of seal skin and other seal products hailing from commercial seal hunting.
This has upset Canadian seal hunters since Italy and Denmark, both members of the European Union, are two major importers of seal products. Italy imports most of their seal skins from Russia, but Denmark has always been an important trade partner for North American seal hunters, partly due to Denmark’s traditional connection to Greenland.
According to a statement from Canadian Trade Minister Stockwell Day, the federal government is now getting ready to move in with an appeal against the ban, which they see as a clear breach of WTO regulation.
“We’ll go to the WTO because it’s clear in WTO regulations that if one country wants to ban the products of another, it has to have clear scientific, medically acceptable reasons for doing so, and this EU ban is not based on hard science,” Day said.
The Canadin government believes that Canada deserves an exemption from the import ban since it follows internationally accepted guidelines regarding seal hunting, e.g. by prohibiting the clubbing of baby seals while they still have their white coats.
Day claims that the European ban is based on “people’s feelings” rather than hard facts, and says that the trade action will proceed unless the European Union Parliament exempts Canada and other countries that he said practise humane and sustainable seal hunting. According to Day, seal hunt proponents erroneously portray seal hunting as it was 40 years ago.
The suggested seal import ban must still be approved by individual European governments before becoming law but can, if passed, come into effect as early as next year. If the is approved, it will cause an annual 2 million USD loss for the Canadian industry.
Canadian Fisheries Minister Gail Shea agrees supports the government’s planned trade action.
“When you live in small coastal communities, sometimes there’s not many opportunities to make some additional money,” she said. “We have a number of families who make up to 35% of their annual income from the seal hunt. So yes, I do think it’s very important.”
As reported earlier, the proposed European seal import ban will contain some exemptions and seal products resulting from hunts traditionally conducted by Inuit and other indigenous communities can still be imported to and marketed in European Union countries even if the ban is approved. Products that result from hunting conducted for the purpose of sustainable management of marine resources on a non-profit basis will also be allowed, and individual travellers will be permitted to bring seal products to the European Union as long as the import is of an occasional nature and consists exclusively of goods for the personal use of the traveller.
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.
U.S. and Canadian scientists have documented the first known migration of blue whales from the coast of California to areas off British Columbia and the Gulf of Alaska since the 1965 ban of commercial whaling.
Researchers identified 15 separate cases where Blue Whales were spotted in the waters off British Columbia and the Gulf of Alaska. Four of the observed animals were identified as Blue Whales previously seen swimming in Californian waters, which suggests that Blue Whales are re-establishing their old migration pattern.
The identifications were made by comparing pictures of Blue Whales photographed in the northern parts of the Pacific Ocean since 1997 with photographs of Blue Whales taken off the southern U.S. West Coast. The identity of individual Blue Whales was determined based on dorsal fin shape and pigmentation patterns in skin colour.
The Blue Whale was almost hunted to extinction during the 20th century and even though commercial whaling has been prohibited (albeit not strictly enforced) since 1965 the populations are having a hard time recovering. Blue Whales are still listed as endangered on the IUCN Red List of Threatened Species and no more than roughly 5,000 to 12,000 Blue Whales are believed to remain in our oceans, with 2,000 of them living of the U.S. West Coast.
The migration research was conducted by scientists from Cascadia Research Collective in Washington State, NOAA’s* Southwest Fisheries Science Center in California, and Canada’s Department of Fisheries and Oceans. You can read the full article in the most recent issue of the journal Marine Mammal Science.
* The United States National Oceanic and Atmospheric Administration (NOAA)