Kelp
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Propagação de Olho-de-Boneca (Dendrobium nobile Lindl.) por estaquia
A orquídea "olho-de-boneca" (Dendrobium nobile Lindl.), é uma espécie ornamental usualmente propagada por brotações que aparecem nas gemas axilares das folhas chamadas de "keikes", mas a estaquia é possível, porém, muitas não brotam e eventualmente apodrecem. Com o intuito de aumentar a proporção de pegamento de mudas obtidas de estacas, no presen
Acta Sci., Agron.. Publicado em: 2013-12
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2. Análise populacional genética de Larus dominicanus através do uso de microssatélites / Population genetic analysis of Larus dominicanus using microsatellites
The changes in the coast that has been caused by human action has led to impacts on species associated with this environment. Larus dominicanus is a seabird species widely distributed throughout the Southern Hemisphere. The generalist feeding habits allow this species take advantage from human action, leading to population growth, which is also observed in o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2012
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3. Genetic variability in mitochondrial and nuclear genes of Larus dominicanus (Charadriiformes, Laridae) from the Brazilian coast
Several phylogeographic studies of seabirds have documented low genetic diversity that has been attributed to bottleneck events or individual capacity for dispersal. Few studies have been done in seabirds on the Brazilian coast and all have shown low genetic differentiation on a wide geographic scale. The Kelp Gull is a common species with a wide distributio
Genet. Mol. Biol.. Publicado em: 09/10/2012
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4. Community structure of lice (Insecta: Phthiraptera) from two sympatric gull species: kelp gull (Larus dominicanus) and Franklin's Gull (Larus pipixcan) in Talcahuano, Chile
A total of 1,177 lice of four species were collected from 124 kelp gulls (Larus dominicanus) and 137 lice of the same four species from 60 Franklin's gulls (Larus pipixcan). The louse Saemundssonia lari (O Fabricius) (Phthiraptera: Philopteridae) was the most numerous on both gull species, with infestation rates of 4.9 on kelp gulls and 1.8 on Franklin's gul
Neotropical Entomology. Publicado em: 2011-06
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5. Using Macrocystis pyrifera (L.) C. Agardh from southern Chile as a source of applied biological compounds
The exploitation of seaweeds in Chile has been carried out for more than 60 years. More recently, seaweeds have been used for the production of alginate, agar and carrageenan, agricultural fertilizers and industrial aquaculture (feed for abalone and sea urchins), increasing the added value of this natural resource. In the Magellan Region (56ºS), the giant k
Revista Brasileira de Farmacognosia. Publicado em: 06/05/2011
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6. Heterospecific sociality of birds on beaches from southeastern Brazil
Studies on the sociality of heterospecific assemblages of birds have promoted a greater understanding of the types of interactions and survivorship between coexisting species. This study verified the group compositions in bird assemblages and analyzed the sociality of migratory and resident species on sandy beaches of southeastern Brazil. A transect was esta
Zoologia (Curitiba). Publicado em: 04/12/2009
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7. Kelp gulls, Larus dominicanus (Aves: Laridae), breeding in Keller Peninsula, King George Island, Antarctic Peninsula
We examined the distribution, abundance and density of the Kelp Gull, Larus dominicanus (Lichtenstein, 1823), at Keller Peninsula on two occasions during the breeding season of 2007-2008 (once for incubation and once for chick stages) and compared our results with previously published data. We present information on the number of eggs, incubation success, an
Zoologia (Curitiba). Publicado em: 04/09/2009
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8. Sucessão ecológica em parcelas orgânicas de madeira, macroalgas e em carcassas de baleia no mar profundo; e similaridade de espécies entre habitats redutores no talude continental da Califórnia (Pacífico Nordeste) / Whales, wood and kelp islands in the deep-sea: ecological succession and species overlap with other chemosynthetic habitats in the Californian continental slope (NE Pacific)
Sunken parcels of macroalgae, wood and whale carcasses provide important oases of organic enrichment at the deep-sea floor, but sediment community structure and succession around these habitat islands are poorly evaluated. We experimentally implanted parcels of kelp and wood falls nearby a 30-ton deep-sea whale-fall at 1670 m in the Santa Cruz Basin (SCr; NE
Publicado em: 2009
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9. Efeito dos polissacarÃdeos sulfatados da alga marinha parda Spatoglossum schroederi sobre o aumento da resistÃncia do camarÃo Litopenaeus vannamei, submetido a situaÃÃes de estresse / Effect of sulfated polysaccharides from brown seaweed Spatoglossum schroederi on the increased resistance of the shrimp Litopenaeus vannamei, subjected to stress
O estresse à o agente imunossupressor mais potente na carcinicultura, causando o declÃnio das defesas naturais dos camarÃes, deixando-os enfraquecidos e suscetÃveis Ãs contaminaÃÃes por microorganismos patogÃnicos, presentes na Ãgua e nos sedimentos dos viveiros. Sendo assim, o desenvolvimento de estratÃgias que visem tornar estes animais mais resi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/12/2007
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10. Evolutionary consequences of food chain length in kelp forest communities.
Kelp forests are strongly influenced by macroinvertebrate grazing on fleshy macroalgae. In the North Pacific Ocean, sea otter predation on macroinvertebrates substantially reduces the intensity of herbivory on macroalgae. Temperate Australasia, in contrast, has no known predator of comparable influence. These ecological and biogeographic patterns led us to p
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11. Oligoguluronates Elicit an Oxidative Burst in the Brown Algal Kelp Laminaria digitata1
Oligomeric degradation products of alginate elicited a respiratory and oxidative burst in the sporophytes of the kelp Laminaria digitata. The generation of activated oxygen species (AOS), O2−, and H2O2 was detected at the single cell level, using nitroblue tetrazolium precipitation and a redox-sensitive fluorescent probe, respectively. The oxidative
American Society of Plant Physiologists.
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12. Community-wide distribution of predator–prey interaction strength in kelp forests
The strength of interactions between predators and their prey (interaction strength) varies enormously among species within ecological communities. Understanding the community-wide distribution of interaction strengths is vital, given that communities dominated by weak interactions may be more stable and resistant to invasion. In the oceans, previous studies
The National Academy of Sciences.