“Many sharks are living much longer than was thought, according to a major review of studies on these important and often endangered top predators. This means that many estimates of how threatened particular species are — and decisions about whether they can be fished safely — could be based on faulty data.
Scientists usually estimate how old sharks are by slicing through their spines and counting distinctive pairs of bands seen inside, which are often assumed to show age in the same way as the rings of a tree.”
Ver artigo completo aqui.
Fonte: Nature, 20 de setembro de 2017
Anúncios
“Recordando e adaptando as palavras de Denis Hayes na cerimónia de abertura dos festejos do primeiro Dia da Terra em 1990: “como é que depois de tantos desafios ultrapassados, tantos progressos, tantas batalhas ganhas, chegamos ao ponto de perder a guerra, e com ela o planeta?”. As palavras de Denis Hayes retratam bem os desafios que se enfrentam na conservação de recursos naturais, em especial quando se tratam de recursos economicamente importantes. É este o caso de uma espécie marinha famosa entre nós, a sardinha. Muita informação tem chegado sobre esta espécie, mas muitas são as questões e conceitos que merecem ser esclarecidos antes de uma busca pelo entendimento, ainda que parcial, do que se passa com a sardinha.”
“Forage fish, the small species that support the marine food web, won new safeguards along the U.S. Atlantic coast on Friday. The National Oceanic and Atmospheric Administration’s Fisheries Service (NOAA Fisheries) announced a final rule directing fishery managers to create science-based measures, such as catch limits, before fishing can begin in federal waters (from 3 to 200 miles offshore) on more than 50 species not already targeted by commercial fishermen. The rule will also help ensure a steady supply of forage fish for the many predators that feed on them, such as striped bass, bald eagles, and humpback whales, and increase security for businesses that depend on healthy ocean systems.”
“ATHENS, Greece — The World Wildlife Fund filed a lawsuit Monday over extensive pollution to the coastline outside Athens following the sinking of a tanker near Greece’s largest port.
“In an important step toward restoring fish stocks in the North Sea, Members of the European Parliament (MEPs) voted on 14 September to improve a European Commission proposal for a fisheries management plan in that region that increases the likelihood of ending overfishing there by 2020.
“MARINA di GINOSA, Italy — As a small boat loaded with wet suits, lab equipment and empty coolers drifted into the warm turquoise sea, Stefano Piraino looked back at the sunbathers on the beach and explained why none of them set foot in the water.
“Nos dias 14 e 15 de Setembro, a Fundação Oceano Azul (FOA) acolheu, em Lisboa, a primeira reunião do grupo de peritos do Processo Global de Avaliação dos Oceanos das Nações Unidas desde a publicação do seu primeiro relatório, em 2016. O encontro foi organizado pelo Secretariado das Nações Unidas, com o apoio do Governo Português e em parceria com a FOA.”
“On the occasion of the first meeting of the Working Group on Small-Scale and Recreational Fisheries, organizations and stakeholders working in the sector have taken concrete steps to enhance their collaboration and promote synergies in order to support the sustainable development of small-scale fisheries. Acknowledging the multi-faceted nature of interventions to support the sector, several organizations have indeed decided to take action and step up their cooperation efforts in order to establish regular and long-term coordination mechanism.”
“O Decreto-Lei n.º 222/2015, de 8 de outubro, estabelece o regime jurídico do ordenamento e da gestão sustentável dos recursos aquícolas das águas interiores, regulamentando a pesca e a aquicultura nessas águas.
“Tem uma ideia de negócio e pretende investir na economia das zonas pesqueiras e costeiras? Pode avançar com apoios comunitários. O Programa Operacional Mar 2020 tem abertas candidaturas desde 15 de Setembro e até 15 de Novembro de 2017.
“Fishing eliminates most of the older fish, a new study finds, and the ecological implications are disturbing—but marine reserves can help.
“The waters off New England’s coast are warming faster than 99.9% of the world’s oceans. A new study finds that summer-like conditions in the Gulf of Maine now last two months longer than they did just a few decades ago. And that’s not necessarily a good thing.
“This guide aims to help FLAGs identify and effectively address social exclusion in fisheries areas. It is intended primarily for Fisheries Local Action Group (FLAG) managers and board members as well as local actors involved in social activities. It could also be of help to managing authorities and national networks that are supporting FLAGs in dealing with social inclusion issues.”
of catches to the fishing sector by means of an application that will allow the sailors to communicate them from the sea in real time with the mobile phone.”
“Our seabird colonies, especially those in northern Scotland, are withering away. At the same time, the government has displayed a complete dereliction of duty in failing to properly track this calamity. In particular, it has ignored calls to carry out its statutory duty to organise a comprehensive national census of our seabirds, even though one is long overdue. That would at least reveal the extent of the crisis and help highlight possible solutions.”
“TENS of thousands of tonnes of fish, apparently mostly horse mackerel, are being stolen out of Namibian waters by licensed foreign-flagged vessels operating in Angolan waters.
“One of the world’s largest marine protection areas has been created off the coast of Easter Island.
““Good news” and “marine research” may seem mutually contradictory, and rarely share the same hashtag on the Twitter machine.
“European Union fisheries ministers returning from summer breaks have a lot to catch up on. The negotiation of multi-annual plans, domestic management of fishing quotas, and of course Brexit will all compete for ministers’ attention as the annual business of setting next year’s fishing limits gets underway.
“A WWF lançou na passada semana a nova plataforma Ocean Witness – Testemunha dos Oceanos.
“A stretch of coastline which is one of the most important sites in the UK for seabirds such as Arctic terns and Atlantic puffins has been given greater protection.
“Fish are expected to shrink in size by 20 to 30 per cent if ocean temperatures continue to climb due to climate change.
“The recent announcement by the Marine Stewardship Council that North Sea cod stocks are now certified as being sustainable has been met with great fanfare as environmentally conscious consumers look forward to tucking into a guilt free portion of fish and chips. Over a decade after North Sea stocks came close to collapse, fishermen have heralded the recovery of cod stocks as being the result of the sacrifices they have had to endure under the EUs Common Fisheries Policy (CFP).”
“The seafood industry has largely stayed out of negotiations for a new international treaty that would allow for marine protected areas (MPAs) on the high seas, said the leader of the main industry organization participating in the treaty process.
ecreased in recent years, sources attending a recent meeting in Sao Paulo on Aug. 30 told Undercurrent News. Sardine catches in Brazil totaled 95,900 metric tons in 2012, 98,600t in 2013, 99,100t in 2014, 86,500t in 2015 and 45,000t in 2016, Dc reported. The drop in sardine catches may have been caused by the effects of the El Nino phenomenon and water warming. The drop has prompted a rise in prices, Folha reported.”
“Sharks include some of the top predators in the ocean, and they are vital players in maintaining the balance of a healthy marine ecosystem. However, because of their late maturation and low birth rate, their population growth rate are relatively low. This means that it can take a long period of time for the shark population to recover its numbers. Sharks are facing challenges such as overfishing and international trading of shark fin, and it is important for shipping companies to acknowledge and understand this issue as they play a big part in the trading of shark fin.”
“Uma equipa de investigadoras portuguesas concluiu que os estuários da Europa com mais espécies de peixes sensíveis aos impactos da actividade humana, como a pesca, carecem de medidas de conservação, como a inclusão em “áreas protegidas”.
“More than 15,000 Indonesian seaweed farmers who say Australia’s worst-ever oil spill destroyed their livelihoods are about to learn if the Federal Court will hear their case.
“An international group of researchers is developing high-capacity analytical computer software that examines small-scale fisheries and develops a diagnosis that makes it possible to update resources and promote sustainable development.
“Elimination of government subsidies deemed harmful by the World Trade Organization will be high on the agenda at an upcoming meeting of WTO member states in Argentina.
“Interested in recording and discussing changes in your environment with scientists and experts? There’s an app for that. The LEO Network—which stands for Local Environmental Observer—is an online community that connects citizens with technical experts to identify and document signs of environmental change.
“Esta conferência reunirá os líderes mundiais envolvidos no setor da pesca de atum com salto e vara e linha de mão para partilhar as melhores práticas, discutir soluções, avaliar a dinâmica social e económica das pescarias individuais e explorar formas de colaboração para o desenvolvimento do setor. Esta será o primeiro encontro mundial entre todos os intervenientes deste setor de atividade, nomeadamente pescadores, comerciantes, governantes, investigadores e ONGs, com o objetivo de estreitar relações preparando o setor – para as crescentes exigências de mercado.”
“Non-government organisation Sustainable Fisheries Partnership (SFP) has released a report outlining an approach to contribute to strengthen the role played by small-scale fisheries in the global seafood industry.
“Fisheries managers in the Caribbean are pinning their hopes on the Climate Investment Fund’s Pilot Program for Climate Resilience (PPCR), Caribbean Regional Track, to generate the data the lack of which has posed major obstacles to effective planning and management of fisheries in a region hit hard by climate change.
“Consumers of tuna from the world’s biggest fishery are are being “betrayed” over its sustainability, according to a coalition of scientists, retailers, politicians and campaigners, including Hugh Fearnley-Whittingstall. The vast Western and Central Pacific fishery provides about half of the world’s skipjack tuna, the type most commonly found in cans on supermarket shelves. Some is certified as sustainably caught by the Marine Stewardship Council (MSC) and carries the group’s “blue tick” logo. But the same boats can also use, at other times, unsustainable methods to catch uncertified fish, a contradiction seen as unacceptable by the new On The Hook coalition.”
“O presidente da Federação de Pescas dos Açores, Gualberto Rita, lamentou hoje o atraso na apresentação do plano de reforma para o setor, que o Governo Regional se comprometeu a concluir “no primeiro trimestre de 2017”.
“Cod fish in the North Sea off the United Kingdom were once heading towards extinction.
“Sustainability this, sustainability that. We all know it’s important, but what does it actually mean for you? Well, when it comes to the ocean, it can be a strong selling point.
“A US judge has ruled against a lawsuit from the National Fisheries Institute (NFI), two trade groups and several large seafood players, which opposes a traceability rule, dubbed the “Seafood Import Monitoring Program”, or SIMP.
“US NGO the Wild Fish Conservancy has filed a lawsuit against Cooke Aquaculture over the escape of more than 300,000 salmon from Washington state operations on Aug. 19-20.
“Brown bears on Alaska’s Kodiak Island are switching to a vegetarian diet of elderberries in preference to salmon because the warmer temperatures are ripening the fruit earlier in the year.
“CHINA and Norway have got down to serious negotiations that should at last set the salmon export train in motion.
