quinta-feira, 2 de fevereiro de 2012

Global experts question claims about jellyfish populations

Global experts question claims about jellyfish populations

Giant jellyfish clogging fishing nets in Japan. (Credit: Shin-ichi Uye)

ScienceDaily (Feb. 1, 2012) — Blooms, or proliferation, of jellyfish have shown a substantial, visible impact on coastal populations -- clogged nets for fishermen, stinging waters for tourists, even choked intake lines for power plants -- and recent media reports have created a perception that the world's oceans are experiencing increases in jellyfish due to human activities such as global warming and overharvesting of fish.

sábado, 21 de janeiro de 2012

Carbon dioxide is 'driving fish crazy'

Rising human carbon dioxide emissions may be affecting the brains and central nervous system of sea fishes. (Credit: Image courtesy of ARC Centre of Excellence in Coral Reef Studies)

ScienceDaily (2012-01-20) -- Rising human carbon dioxide emissions may be affecting the brains and central nervous system of sea fishes with serious consequences for their survival, an international scientific team has found. Carbon dioxide concentrations predicted to occur in the ocean by the end of this century will interfere with fishes' ability to hear, smell, turn and evade predators, says a professor.

http://www.sciencedaily.com/releases/2012/01/120120184233.htm

quarta-feira, 4 de janeiro de 2012



Unidentified pale octopus on the seafloor. (Credit: Image courtesy of University of Oxford

ScienceDaily (2012-01-03) -- Communities of species previously unknown to science have been discovered on the seafloor near Antarctica, clustered in the hot, dark environment surrounding hydrothermal vents. The discoveries include new species of yeti crab, starfish, barnacles, sea anemones, and potentially an octopus.

"Um Mundo Perdido" descoberto proximo das fendas vulcânicas termais, do Continente Anatartico.
Comunidades de espécies bentônicas, previamente não conhecidas pela ciência, foram descobertas no fundo do oceano próximo da Antartida, agregadas ao ambiente quente e escuro de fendas hidrotérmicas de origem vulcânica.As descobertas incluem novas espécies de caranguejos,estrelas,cracas,anemonas e em potencial,um polvo.

segunda-feira, 5 de dezembro de 2011

Ancient Oceans Offer New Insight Into Origins Of Animal Life

ScienceDaily (2009-09-09) -- Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on Earth.

http://www.sciencedaily.com/releases/2009/09/090909133020.htm

terça-feira, 8 de novembro de 2011

Sea life 'must swim faster to survive' to survive climate change



In a new study, scientists warn that fish and other sea creatures will have to travel large distances to survive climate change. (Credit: © Mark Doherty / Fotolia)
ScienceDaily (2011-11-07) -- Fish and other sea creatures will have to travel large distances to survive climate change, international marine scientists have warned. Sea life, particularly in the Indian Ocean, the Western and Eastern Pacific and the subarctic oceans will face growing pressures to adapt or relocate to escape extinction, according to a new study.
http://www.sciencedaily.com/releases/2011/11/111107161959.htm