NAUUP – AQUAICBAS

Aquatic Activities UP

Archive for April 2, 2008

Viruses, oxygen and our green oceans:photosynthesis, cyanobacteria: proportion of the oxygen we breathe is a by-product of bacteria suffering viruses

From: Society for General Microbiology

Quote:
“About half the world’s oxygen is being produced by tiny photosynthesising creatures called phytoplankton in the major oceans. These organisms are also responsible for removing carbon dioxide from our atmosphere and locking it away in their bodies, which sink to the bottom of the ocean when they die, removing it forever and limiting global warming.

“In major parts of the oceans, the micro-organisms responsible for providing oxygen and locking away carbon dioxide are actually single celled bacteria called cyanobacteria,” says Professor Nicholas Mann of the University of Warwick. “These organisms, which are so important for making our planet inhabitable, are attacked and infected by a range of different types of viruses.”

The researchers have identified the genetic codes of these viruses using molecular techniques and discovered that some of them are responsible for providing the genetic material that codes for key components of photosynthesis machinery.

“It is beginning to become to clear to us that at least a proportion of the oxygen we breathe is a by-product of the bacteria suffering from a virus infection,” says Professor Mann. “
[+]

Exposub Portugal 2008 -

O ExpoSub Portugal 2008 é uma iniciativa da APDM (Associação Portuguesa para a Dinamização do Mergulho – http://www.apdm.org.pt/ ) e do Fórum de Mergulho (http://www.forum-mergulho.com/).

A ExpoSub 2008 é uma exposição de actividades subaquáticas, incluindo mergulho em todas as suas vertentes, apneia e pesca-sub.

O nosso principal objectivo é a dinamização das actividades subaquáticas no nosso país, através da mostra de equipamentos, serviços e formação em mergulho recreativo e profissional.

Além da possibilidade de experimentar o mergulho, através de uma experiência de mergulho em piscina aquecida (baptismo de mergulho), os visitantes vão poder assistir a conferências e palestras sobre os mais variados temas das actividades subaquáticas, assistir à apresentação dos trabalhos a concurso no VideoDigiSub 2008 e ficar a par dos mais recentes equipamentos e serviços disponíveis no mercado nacional.

A exposição contará ainda com a presença de várias entidades, delegações de turismo, associações e clubes representativos do Universo das actividades subaquáticas.

A Organização convida-vos a mergulhar na ExpoSub 2008… Venha descobrir o “saber do mar”!


Em 2006 realizou-se a 1ª edição do ExpoSub Portugal e o sucesso ficou comprovado quer pela adesão dos visitantes e expositores, quer pelo grau de satisfação geral de todos.

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Parceria entre a APDM e Fórum de Mergulho e a UltraFM Como parte integrante da campanha global de divulgação da ExpoSub08, foi criada uma parceria entre a APDM e Fórum de Mergulho e a UltraFM.

Neste contexto, a ULTRA FM é a Rádio Oficial da ExpoSub08.

Além de spots publicitários serão lançados passatempos com algumas surpresas para os ouvintes que participarem…

Fiquem atentos!

Fica a informação e sugestão a todos os mergulhadores e demais interessados que sintonizem

os vossos rádios em 88.2 ou ouçam directamente na internet em: ULTRA FM – ONLINE

http://www.ultrafm.pt/

survey was part of the International Polar Year and Census of Antarctic Marine Life programs New Species Found


Giant sea stars or starfish that measure 24 inches (60 centimeters) across are held by Sadie Mills, left, and Niki Davey of New Zealand’s National Institute of Water and Atmospheric Research on February 15, 2008. They and other researchers collected 30,000 sea creatures—many new to science—during a 35-day census in Antarctic waters in February and March, according to a March 26 announcement. The large-scale survey was part of the International Polar Year and Census of Antarctic Marine Life programs, which study the diversity of Antarctic marine life.

(See pictures of other bizarre deep-sea creatures found near Antarctica.)

Source: National Geographic

Japan Courts Poorer Nations in Bid to End Whaling Ban

For years the fate of the world’s whales has swung with the vote count at meetings of the International Whaling Commission (IWC).

Anti-whaling countries, led by Australia and New Zealand, say the marine mammals still number too few to make commercial harvesting sustainable and have so far blocked a resolution led by Japan to end the commission’s 1986 whaling moratorium.

But at an IWC meeting in Saint Kitts in 2006, Japan won a simple majority for the first time in 20 years after the last-minute arrival of delegates from Togo and Gambia.

And early this March Japanese officials invited representatives from 12 developing countries to Tokyo for a special meeting to obtain “understanding of Japan’s position on sustainable whaling.”

Some of those nations, such as Cambodia and Palau, are already IWC members. Others, including Eritrea, Congo, Tanzania, Angola, and Micronesia, are not—yet.

Anti-whaling advocates charge that the move is just the latest example in Japan’s decade-long campaign to buy the votes it needs to reach the necessary three-quarters majority to overturn the ban.

“It seems to me that there is an implied threat to maintain the same old pattern of recruiting new members to try and overturn the moratorium,” said Sir Geoffrey Palmer, New Zealand’s whaling commissioner.

“But I have to say that recruitment efforts go on on both sides.”

Global Resource

In the past decade Japan has recruited 21 allies at the IWC.

Most are poorer Pacific and West African countries that seem unusually willing to pay the substantial membership fees of between U.S. $8,500 and $17,000 a year, anti-whalers note.

A number of Caribbean states were originally drafted by anti-whaling nations but crossed the floor to vote with Japan, allegedly after discussions about development assistance. [+]

source: National Geographic

[Divulgação] Novo nº da Publicação Pesca Submarina

[Divulgação] Anthia Dive Center: Próximas Saídas e Novidades

Entidade Com Protocolo Oficial

Caros Amigos,

Infelizmente, nem sempre o Mar nos deixa fazer os mergulhos que gostamos de vos oferecer,

Este fim de semana, a previsão aponta para um Mar invulgarmente calmo, por isso

Planeamos tirar a barriga de misérias!!!

Vamos aproveitar a calmaria, e rumar a fundo para o Cabo Espichel!

Pião, River, Catrapona e Fenda, não deixando de proporcionar os mergulhos mais junto da costa

Contamos consigo!

Website updates:

- as nossas saidas

-novo menu das fotos da semana, e respectivas fotos na nossa galeria

Mais novidades estão para vir!