Clippings de outros sites
It took 200 years to prove this jellyfish is real – and now its breeding in captivity
- Escrito por Clipping
- Fonte: Earth Touch News Network
- Data de publicação: 12-01-2016 00:00
The ghostly Rhizostoma luteum is a jellyfish so elusive that decades often pass without a single sighting. The creature was first discovered by naturalists in 1827, but it wasn t until 2013 – nearly 200 years later – that the species was confirmed to be real.
Fonte: Earth Touch News Network, online, 12 jan 2016.
Cebimar abre para visitas monitoradas durante o mês de janeiro
- Escrito por Clipping
- Fonte: Meon, Metrópole Online
- Data de publicação: 01-01-2016 15:26
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Fonte: Meon, Metrópole Online, 1 jan. 2016.
Cientistas do IPBES preparam diagnóstico sobre biodiversidade brasileira
- Escrito por Clipping
- Fonte: Agência Fapesp
- Data de publicação: 17-11-2015 14:35
Um diagnóstico sobre a biodiversidade do Brasil e os serviços ecossistêmicos a ela atrelados deve ser divulgado em 2018 por cientistas brasileiros que integram a Plataforma Intergovernamental de Biodiversidade e Serviços Ecossistêmicos (IPBES), entidade internacional criada em 2012 para atuar na interface entre a ciência e a tomada de decisão política.
Exposição "Cebimar 60 Anos" é aberta no Departamento de Patrimônio Histórico
- Escrito por Clipping
- Fonte: Prefeitura de São Sebastião
- Data de publicação: 19-12-2015 00:00
Foi aberta na noite desta sexta-feira (18), com o apoio da Secretaria de Cultura e Turismo de São Sebastião (Sectur) a exposição "Cebimar 60 Anos" em celebração ao aniversário deste órgão de pesquisas ligado à USP (Universidade de São Paulo). A exposição do Centro de Biologia Marinha (CEBIMar) conta com 40 fotografias que poderão ser vistas pelo público na sede do Departamento de Patrimônio Histórico (Deppat) da Sectur até o dia 13 de fevereiro de 2016.
Fonte: Prefeitura de São Sebastião, 19 dez 2015.
Temperature dependence of CO2-enhanced primary production in the European Arctic Ocean
- Escrito por Clipping
- Fonte: Nature Climate Change
- Data de publicação: 31-08-2015 10:56
Authors: J. M. Holding,C. M. Duarte, M. Sanz-Martín, E. Mesa, J. M. Arrieta, M. Chierici, I. E. Hendriks, L. S. García-Corral,
The Arctic Ocean is warming at two to three times the global rate and is perceived to be a bellwether for ocean acidification. Increased CO2 concentrations are expected to have a fertilization effect on marine autotrophs, and higher temperatures should lead to increased rates of planktonic primary production.
Yet, simultaneous assessment of warming and increased CO2 on primary production in the Arctic has not been conducted. Here we test the expectation that CO2-enhanced gross primary production (GPP) may be temperature dependent, using data from several oceanographic cruises and experiments from both spring and summer in the European sector of the Arctic Ocean. Results confirm that CO2 enhances GPP (by a factor of up to ten) over a range of 145–2,099μatm; however, the greatest effects are observed only at lower temperatures and are constrained by nutrient and light availability to the spring period. The temperature dependence of CO2-enhanced primary production has significant implications for metabolic balance in a warmer, CO2-enriched Arctic Ocean in the future. In particular, it indicates that a twofold increase in primary production during the spring is likely in the Arctic.The Arctic Ocean is warming at two to three times the global rate1 and is perceived to be a bellwether for ocean acidification2, 3. Increased CO2 concentrations are expected to have a fertilization effect on marine autotrophs4, and higher temperatures should lead to increased rates of planktonic primary production5. Yet, simultaneous assessment of warming and increased CO2 on primary production in the Arctic has not been conducted. Here we test the expectation that CO2-enhanced gross primary production (GPP) may be temperature dependent, using data from several oceanographic cruises and experiments from both spring and summer in the European sector of the Arctic Ocean. Results confirm that CO2 enhances GPP (by a factor of up to ten) over a range of 145–2,099μatm; however, the greatest effects are observed only at lower temperatures and are constrained by nutrient and light availability to the spring period. The temperature dependence of CO2-enhanced primary production has significant implications for metabolic balance in a warmer, CO2-enriched Arctic Ocean in the future. In particular, it indicates that a twofold increase in primary production during the spring is likely in the Arctic.
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