Determination of Halogenated Natural Products in Passive Samplers Deployed along the Great Barrier Reef, Queensland/Australia

2009 ◽  
Vol 43 (16) ◽  
pp. 6131-6137 ◽  
Author(s):  
Walter Vetter ◽  
Paul Haase-Aschoff ◽  
Natalie Rosenfelder ◽  
Tatiana Komarova ◽  
Jochen F. Mueller
Keyword(s):  
Natural Products ◽  
Great Barrier Reef ◽  
Passive Samplers ◽  
Barrier Reef ◽  
Halogenated Natural Products

Tropical Marine Algae. VIII. The Structural Determination of Novel Sesquiterpenoid Metabolites From the Red Alga .Laurencia majuscula

1992 ◽  
Vol 45 (10) ◽  
pp. 1611 ◽  
Author(s):  
R Denys ◽  
JC Coll ◽  
BF Bowden
Keyword(s):  
Natural Products ◽  
Great Barrier Reef ◽  
Marine Algae ◽  
Structural Type ◽  
Red Alga ◽  
Structural Determination ◽  
Barrier Reef ◽  
Natural Products Chemistry ◽  
Laurencia Majuscula

An investigation of the natural products chemistry of the red alga Laurencia mujuscula from the Great Barrier Reef yielded three novel metabolites, (1), (2) and (3a), possessing a new sesquiterpenoid structural type. Known metabolites (6)-(11) were also isolated and the reassignment of n.m.r. spectral values for (11) is reported.

Validation of annual growth increments in the Otoliths of two species of Damselfish from the Southern Great Barrier Reef

1992 ◽  
Vol 43 (5) ◽  
pp. 1057 ◽  
Author(s):  
AJ Fowler ◽  
PJ Doherty
Keyword(s):  
Great Barrier Reef ◽  
Direct Determination ◽  
Early Summer ◽  
Barrier Reef ◽  
Annual Basis ◽  
Growth Increments ◽  
Regular Time ◽  
Latitudinal Difference ◽  
Pomacentrus Moluccensis

If the otoliths of fish are to be used as an ageing tool, they must fulfil three criteria: they must display an internal structure of increments, this structure must be relatable to a regular time scale, and the otoliths must grow throughout the lives of the fish at a perceptible rate. These criteria were assessed for two species of damselfish: Pomacentrus moluccensis and P. wardi from One Tree Reef on the southern Great Barrier Reef. Transverse sections of sagittae from both species contained an alternating sequence of opaque and translucent zones that formed an interpretable pattern of increments. Treatment of fish with tetracycline showed that the opaque zones were formed on an annual basis, generally between spring and early summer. The assessment of growth of otoliths from fish treated with tetracycline indicated that those as old as 10 years of age were still laying down increments of regular thickness. Consequently, the otoliths from both species successfully fulfilled the three criteria required for the direct determination of age. Furthermore, this study helped to identify two levels of variation in otolith structure, manifested in the clarity and interpretability of the increments; there was an interspecies difference and a significant intraspecies latitudinal difference.

A revision of Australian Erylus (Porifera : Demospongiae : Astrophorida : Geodiidae) with a tabular review of worldwide species

2001 ◽  
Vol 15 (3) ◽  
pp. 319 ◽  
Author(s):  
Christi L. Adams ◽  
John N. A. Hooper
Keyword(s):  
Natural Products ◽  
New Species ◽  
Autoimmune Diseases ◽  
Great Barrier Reef ◽  
Bioactive Compounds ◽  
Reef Coral ◽  
Barrier Reef ◽  
Slide Preparation ◽  
Coral Sea ◽  
New Compounds

ErylusGray (Porifera: Geodiidae) has been recorded in Australian waters from two antiquated reports (E. lendenfeldi Sollas, 1888 and E. proximus Dendy, 1916). These two species are redescribed. From more recent collections from the Great Barrier Reef, Coral Sea, southern Queensland and Western Australia four new species (E. amissus, E. circus, E. citrus and E. fromonta, spp. nov.) were discovered and are described. One other, presently unrecognisable, species from an antiquated museum slide preparation is also described. A tabular review of species worldwide is also provided. Erylus has been an important source of novel bioactive compounds, including those with antitumor and antifungal properties and that are helpful in combating autoimmune diseases (including HIV). This discovery of four new species, increasing the diversity of the genus by 66% in Australian waters, has important implications pertaining to the existence of new compounds, or analogues of existing compounds unique to Erylus, as potential therapeutic marine natural products.

Introductory remarks

1978 ◽  
Vol 284 (999) ◽  
pp. 1-2
Keyword(s):  
Great Barrier Reef ◽  
Royal Society ◽  
Accurate Determination ◽  
The Sun ◽  
Barrier Reef ◽  
The South ◽  
The Face ◽  
The Universe ◽  
Do So

What we are here to discuss concerns the Great Barrier Reef of Australia. It is very fitting that we should do so in this place, because the Royal Society was intimately concerned with events that led to its discovery in 1770. We go back to 1716, to a communication printed in Latin in the Philosophical Transactions by Edmond Halley, then Savilean Professor of Geometry at Oxford and Secretary of this Society. There, and for no less an objective than the more accurate determination of the dimensions of the Universe, he drew attention to the unique opportunities to that end to be presented by observing the transits of Venus across the face of the Sun due on 6 June 1761 and 3 June 1769. In the event international observations in the former year were largely fruitless, giving added reason for adequate observations in 1769. One of the conclusions of the specially appointed Transit Committee of the Society was that one site for observation should be in the South Seas.

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