...Scientific results of the cruises of the yachts "Eagle" and "Ara", 1921-1928, William K. Vanderbilt, commanding. Crustacea... By Lee Boone.

2

...Scientific results of the cruises of the yachts "Eagle" and "Ara", 1921-1928, William K. Vanderbilt, commanding. Crustacea... By Lee Boone.

3

...Scientific results of the cruises of the yachts "Eagle" and "Ara", 1921-1928, William K. Vanderbilt, commanding. Crustacea... By Lee Boone.

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Merchant vessels of the United States... : (including yachts).

1881/82-1893/94 issued in the series of Treasury dept. Documents; 1936/37-1939/41 in the Bureau of marine inspection and navigation series of Reports as Report series no. [1], 4, 8, and 11.

The Margate steam yachts' guide, or A topographical description of the principal buildings, towns, villages, seats, &c.,&c., between London and Margate, with a brief sketch of the Isle of Thanet;

Mode of access: Internet.

[Illustrated catalogue of steamers, yachts, dredgers, tugs, etc.]

Mode of access: Internet.

Merchant vessels of the United States ... (including yachts and certain government vessels) ...

1881/82-1893/94 issued in the series of Treasurey Dept. Documents; 1936/37-1939/41 in the Bureau of Marine Inspection and Navigation series of Reports as Report series no. [1], 4, 8, and 11.

Discussions on conceptual knowledge and the use of blogs

In both Australia and Norway and through a number of Technology projects conducted since 2007, the authors – together and with other collaborators - have attempted to create positive learning environments supported by Web 2.0 communication tools. Through protected public sites and the oz-Teachernet [http://www.otn.edu.au], we have consistently chosen to use blogs to support the social construction of knowledge, that is, to allow students the opportunity to discuss, share and collaborate on their classroom activities and engagement with Technology artefacts and processes. Through comparisons with findings from a small-scale project in Norway and a large-scale project in Australia, this paper will argue for the potential of discussion through blogs but recommend that the purposeful use of scientific language in student communication will not occur without teacher intervention and scaffolding.

Caribbean copyright showdown

The tiny Caribbean island of Antigua doesn’t make the news very often. Located 1800 kilometres east of Miami, just north of Montserrat, it is best known as a holiday destination for well-heeled Europeans and celebrities with private yachts. Now it is in the headlines for an unexpected reason...

Macroalgal introductions by hull fouling on recreational vessels: Seaweeds and sailors

Macroalgal invasions in coastal areas have been a growing concern during the past decade. The present study aimed to assess the role of hull fouling on recreational yachts as a vector for macroalgal introductions. Questionnaire and hull surveys were carried out in marinas in France and Spain. The questionnaires revealed that the majority of yacht owners are aware of seaweed introductions, usually undertake short range journeys, dry dock their boat at least once a year, and use antifouling paints. The hull survey showed that many in-service yachts were completely free of macroalgae. When present, fouling assemblages consisted mainly of one to two macroalgal species. The most commonly found species was the tolerant green seaweed Ulva flexuosa. Most of the other species found are also cosmopolitan and opportunistic. A few nonnative and potentially invasive Ceramiales (Rhodophyta) were found occasionally on in-service yachts. On the basis of the information gathered during interviews of yacht owners in the surveyed area, these occurrences are likely to be uncommon. However they can pose a significant risk of primary or secondary introductions of alien macroalgal species, especially in the light of the increase in yachting activities. With large numbers of recreational yachts and relatively rare occurrences of nonnative species on hulls, comprehensive screening programs do not seem justified or practical. The risks of transferring nonnative species may, however, be minimized by encouraging the behaviors that prevent fouling on hulls and by taking action against neglected boats before they can act as vectors.

[Le] yacht Elettra de M. [Guglielmo] Marconi : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 58873

Yacht Oasis à M. Delage, remorquant le Gao au départ de Villennes [sur Seine] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60271

Visite royale en Écosse, le yacht royal passe devant la flotte à Rothesay : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60070

Marins du Queen Élisabeth acclamant le yacht royal [à Rothesay] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60071