Isolation of guanosine diphosphate uronic acids from a marine brown alga, Fucus gardneri Silva.

Nitrogen content in the brown alga Fucus gardneri and its relation to light, herbivory and wave exposure

Nitrogen is a necessary element for much of seaweed physiology, and is the most common limiting nutrient for marine macroalgae. Therefore, the content of nitrogen in algal tissue is often considered a useful indicator of algal productivity. However, the significance of algal nitrogen content in the field is understudied. We used a factorial manipulation of light and herbivory at three sites in ...

Recovery of the brown alga Fucus gardneri following a range of removal intensities

The consequences of disturbance are known to be non-linear functions of disturbance intensity. In this study, we investigate the effects of a range of disturbance intensities by experimentally manipulating the cover of Fucus gardneri, a dominant intertidal alga. The effects of disturbance on subsequent Fucus recovery were similar for canopy reductions of 0–80%. However, complete removal of all ...

Temperature-dependent photosynthesis in the intertidal alga Fucus gardneri and sensitivity to ongoing climate change

Rapid Mass Spectrometric Analysis of a Novel Fucoidan, Extracted from the Brown Alga Coccophora langsdorfii

The novel highly sulfated (35%) fucoidan fraction Cf2 , which contained, along with fucose, galactose and traces of xylose and uronic acids was purified from the brown alga Coccophora langsdorfii. Its structural features were predominantly determined (in comparison with fragments of known structure) by a rapid mass spectrometric investigation of the low-molecular-weight fragments, obtained by "...

Radionuclides in marine macroalgae from Amchitka and Kiska Islands in the Aleutians: establishing a baseline for future biomonitoring.

Levels of radionuclides in seven species of marine brown algae and Ulva were determined to establish a baseline for the Northern Pacific Ocean/Bering Sea (Aleutian Islands). There were differences in levels among algal species and locations (Amchitka Island vs Kiska Island). No values were above the minimum detectable activity (MDA) level for (137)Cs, (129)I, (60)Co, (152)Eu, (90)Sr, and (99)Tc...