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Aquatic Activities UP

Archive for April 14, 2008

Nudi Pixel: web-Based ID Tool for Nudibranchs Worldwide/ Bade de dados para ID de Nudibrânquios



Web-based identification tool for nudibranchs worldwide using photographs as the first point of identification. Nudi Pixel serves as an online reference tool for Nudibranch lovers.

Each species of Nudibranch in the website has detailed photo references, location and scientific classification. To make the website more competent and attractive, we have designed it in such a way that every Nudibranch will have at least two images for reference. We are proud to report that some of the Nudibranchs uploaded to Nudi Pixel are being identified and examined by leading nudibranch experts like Dr. Dave Behrens, Dr. Richard Willan and Neville Coleman. Nudi Pixel also hopes to create a stockpile of Nudibranch images for reference purposes. These images are contributed by friends and fellow Nudibranch lovers from around the globe. Here, the Nudi Pixel team would like to thank each and every one of you for your images, efforts and support to develop this reference website.
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At http://aquaicbas.blogspot.com you can check out the “Species of the week” published at Nudi Pixel on our side bar. A way to passively give small pieces of information and knowledge to all of those who are interested or simply curious about “that species” they saw on their last dive.

Nudibrânquios, o que são?

Ver também:

Os Pequenos e Espectaculares Nudibrânquios”
por
Maria João Correia

Agenda de Conferências Exposub 2008

Agenda do ciclo de conferências para a ExpoSub08

Este ano vamos superar expectativas!

Trabalhos e palestras nas mais variadas vertentes e de alto interesse fazem parte do reportório para 2008.

Consulte a agenda que lhe enviamos em formato PDF e tenha sempre disponível o programa para os 3 dias.

Saiba quem, a que horas e sobre de que se trata a palestra!

Programa: Agenda de Conferências Exposub08

Congress Pushes for True Shark Finning Ban [ENN/OCEANA]

From:Oceana
Congress Pushes for True Shark Finning Ban
Washington, D.C. — A recent decision by the 9th U.S. Circuit Court of Appeals has prompted Congress to introduce the “Shark Conservation Act of 2008.” This legislation would close loopholes exposed in the court decision by improving existing laws, originally intended to prevent shark finning.

The Act would require sharks to be landed with their fins, improving current laws that only require fins and carcasses to be landed in a specific ratio.

“When sharks are landed with their fins, it facilitates better enforcement and data collection, which is essential in stock assessments and quota monitoring,” said Elizabeth Griffin, marine wildlife scientist at Oceana.

To prevent circumvention, the new provisions would apply to all vessels, not just fishing vessels. The bill also allows the U.S. to take actions against countries that do not have shark finning restrictions that are at least as strenuous as those in the U.S. This could include the prohibition of imports of shark products from those countries, among other actions.

“Congress must take this critical step towards protecting sharks,” said Griffin. “U.S. leadership is necessary to protect global shark populations.”

Enactment of the Shark Conservation Act of 2008 would close the loopholes in the Shark Finning Prohibition Act and would result in stronger protections for vulnerable and endangered shark populations in the U.S. and around the world.

The bill was introduced by Congresswoman Madeleine Bordallo (D-Guam), Chairwoman of the Subcommittee on Fisheries, Wildlife and Oceans of the House Committee on Natural Resources. The Natural Resources Committee is expected to consider the bill mid-April.

For more information about sharks and the threats facing their populations, please visit http://oceana.org/sharks.

Japan kills 551 Antarctic whales, short of target [ENN]

From: Reuters

Japan’s Antarctic whaling catch fell far short of its target this season, hampered by a series of skirmishes with anti-whaling protesters, the Fisheries Agency said on Monday.

The fleet caught only 551 minke whales, compared with the planned catch of 850. No fin whales were caught at all, although it had set a target of 50, a Fisheries Ministry official said.

“Sabotage by activists is a major factor behind our failure to achieve our target,” the official said.

Militant anti-whaling campaigners from the Sea Shepherd Conservation Society had repeatedly confronted Japan’s whaling fleet earlier this year.

Last month, members of the Sea Shepherd group threw bottles and containers of foul-smelling substances at a whaling ship in an attempt to disrupt the hunt, resulting in three sailors complaining of eye irritation.

The incident followed a high-profile standoff in January in which two activists boarded another Japanese whaling ship, forcing it to suspend whaling for a month.

The absence of fin whales in the catch was partly due to other factors, the ministry said.

“Sabotage is not entirely to blame for that. There was a situation where few fin whales were spotted,” the official said.

Greenpeace Japan, which also carried out activities aimed at obstructing the hunt, said it was not satisfied with the reduced catch.

“They say that one reason for the lower catch is that they didn’t see so many whales,” said Junichi Sato of Greenpeace. “That is a good reason why they should not conduct lethal research.”[+]

Sea Salt Worsens Coastal Air Pollution [ENN]

From: University of Calgary

Air pollution in the world’s busiest ports and shipping regions may be markedly worse than previously suspected, according to a new study showing that industrial and shipping pollution is exacerbated when it combines with sunshine and salty sea air.

In a paper published in the journal Nature Geoscience, a team of researchers that included University of Calgary chemistry professor Hans Osthoff report that the disturbing phenomenon substantially raises the levels of ground-level ozone and other pollutants in coastal areas.

“We found unexpectedly high levels of certain air pollutants where pollution from cities and ships meets salt in the ocean air along the southeast coast of the United States,” said Osthoff, who joined the U of C’s Department of Chemistry last August. “It only makes sense that this is a problem everywhere industrial pollution meets the ocean, as is the case in many of the largest cities around the world. It also changes our view of the chemical transformations that occur in ship engine exhaust plumes, and tells us that emissions from marine vessels may be polluting the globe to a greater extent than currently estimated.”

Dr. Osthoff was part of a National Oceanic and Atmospheric Administration (NOAA) team that spent six weeks monitoring air quality in busy shipping areas off the southeastern coast of the United States between Charleston, South Carolina and Houston, Texas, in the summer of 2006. The researchers found unexpectedly high levels of nitryl chloride (ClNO2), a chemical long suspected to be involved in ground-level ozone production along the coast. [+]

Pluridoc – plataforma de documentos técnicos -Ultimas Actualizações


Pluridoc – plataforma de documentos técnicos


Vulnerabilidade das Ilhas-Barreira e Dinâmica da Ria Formosa na Óptica da Gestão
Resumo em Português: O sistema de ilhas-barreira da Ria Formosa oferece excelentes condições a diversas actividades, das quais se podem salientar as turístico-balneares. Desde os anos 60 que essas actividades vêm sendo exercidas com grande intensidade, com a construção de infra-estruturas e…
Autor: Filipe Rafael Ceia
Ano: 2007
Idiomas do Documento: Português

Ictiofauna dulçaquícola exótica em Portugal Continental
Resumo em Português: Em Portugal Continental estão actualmente referenciadas 13 espécies piscícolas dulçaquícolas de origem alienígena, 5 de ocorrência localizada enquanto que as restantes 8 apresentam uma distribuição ampla. Desta listagem foram excluídas a tenca (Tinca tinca) – que apesar…
Autor: Paulo Pinheiro
Ano: 2008
Idiomas do Documento: Português

PROJETO DE ESTAÇÃO DE TRATAMENTO DE ESGOTOS UTILIZANDO O PROCESSO DE LODOS ATIVADOS POR BATELADA PARA UMA CIDADE DO PORTE DE CORUMBATAÍ – SP.
Resumo em Português: O artigo mostra a proposta e elaboração de uma estação de tratamento de esgotos pelo processo de batelada.
Autor: Zampin, Ivan Carlos¹; Lombardo, Magda Adelaide²; Oliveira, Fatima Bento de³
Ano: 2007
Idiomas do Documento: Português

INFLUÊNCIA DE DIFERENTES SALINIDADES NA REPRODUÇÃO E CRESCIMENTO DE Acartia tonsa (COPEPODA, CALANOIDA)
Resumo em Português: O objetivo deste estudo é determinar os efeitos de diferentes valores de salinidade na reprodução do copépode eurihalino A. tonsa, espécie muito abundante no Estuário da Lagoa dos Patos, Rio Grande, RS, local sujeito à extremas variações de salinidade. Os copépodes util…
Autor: Alessandro Pereira Cardozo
Ano: 2004
Idiomas do Documento: Português

FLUXO – Elementos Essenciais de Fluxos Ambientais
Resumo em Português: Os sistemas fluviais e de água subterrânea precisam de água tanto para se manter a si próprios como para uso e benefício das pessoas. A quantidade de água necessária para isso designa-se “fluxo ambiental” . As conseqüências derivadas da negligência desta necessidade …
Autor: Megan Dyson, Ger Bergkamp, John Scanlon (Editores)
Ano: 2007
Idiomas do Documento: Português