Vacelet Jean (25 results)

Condition: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

hardcover. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

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(S. A. J. de Microscopie Vol. 10, No. 1) 1971. S. 113 - 116. m. zahlr. Abb. br. -2) -Sonderabdruck-.

Verongia (S. A. J. de Microscopie Vol. 10, No. 1) 1971. S. 13 - 32. m. zahlr. Abb. br. -2) -Sonderabdruck-.

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Hardcover. Condition: New. In shrink wrap. Looks like an interesting title.

Condition: Very Good. Bon état. Sans date. Very Good.

Condition: Assez bon. Merci, votre achat aide à financer des programmes de lutte contre l'illettrisme.

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: New. In English.

Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Although sponges are one of the major components of littoral ecosystems, their systematics obviously lags behind that of the majority of other groups of marine invertebrates. Also the evolutionary trends in these most primitive of the Metazoans are poorly understood. The confused state of their taxonomy and the difficulties with their identification prevent their use in ecological studies. The emphasis of interest presently seems to have shifted towards chemistry, but many of the hundreds of interesting chemicals recently described in sponges pro bably have been found in mistakenly or imprecisely identified animals. This situ ation will become worse in the next few years, when a number of experts will retire and will not be replaced by new ones, owing to the difficulties that the science of systematics is facing in most countries - as exemplified during this meeting by an informal discussion on the endangered future of European Museums. Under these circumstances, it is the responsability of present sponge taxono mists to leave a less confused state and tools such as simple fauna or computerized data bases to generations following. These tools do not exist even in one of the best studied areas, the North-Eastern Atlantic (including the Mediterranean Sea).…

Condition: New. pp. viii + 332.

Paperback. Condition: Brand New. reprint edition. 344 pages. 9.60x6.70x0.80 inches. In Stock.

Hardcover. Condition: Very Good. No Jacket. 1st Edition. Proceedings of the NATO Advanced Research Workshop on Taxonomy of Porifera from the N E Atlantic and Mediterranean Sea, held at Marseille in September 1986. VG copy in original hardback binding. Binding with some bumping to top corners but otherwise very clean and bright. Contents VG to near fine.…

Couverture rigide. Condition: Comme neuf. Ed. Glénat. 1987, 256 pages. Encore sous cellophane. Volume relié. Format : 24 x 32. TBE intérieur. TBE extérieur, jaquette en très bon état.

Condition: Fine. Très bon état. Monaco. in-8. 1958. agrafé. 20 pages. Avec des figures en noir - Il s'agit d'une étude scientifique de 1958 (ou 1959 selon les sources) par Jacques Laborel et Jean Vacelet portant sur la biodiversité et les peuplements d'une grotte sous-marine spécifique située dans le golfe de Marseille. Cette publication est considérée comme un travail pionnier dans l'étude biologique des grottes marines. Fine.…

Bulletin du muséum national d'histoire naturelle - Publication bimestrielle - ZOOLOGIE 307- N° 444 - MARS-AVRIL 1977. Paginé de 345 à 366. Broché. Bon état.

Condition: new. Questo è un articolo print on demand.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Although sponges are one of the major components of littoral ecosystems, their systematics obviously lags behind that of the majority of other groups of marine invertebrates. Also the evolutionary trends in these most primitive of the Metazoans are poorly understood. The confused state of their taxonomy and the difficulties with their identification prevent their use in ecological studies. The emphasis of interest presently seems to have shifted towards chemistry, but many of the hundreds of interesting chemicals recently described in sponges pro bably have been found in mistakenly or imprecisely identified animals. This situ ation will become worse in the next few years, when a number of experts will retire and will not be replaced by new ones, owing to the difficulties that the science of systematics is facing in most countries - as exemplified during this meeting by an informal discussion on the endangered future of European Museums. Under these circumstances, it is the responsability of present sponge taxono mists to leave a less confused state and tools such as simple fauna or computerized data bases to generations following. These tools do not exist even in one of the best studied areas, the North-Eastern Atlantic (including the Mediterranean Sea). 344 pp. Englisch.…

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Proceedings of the NATO Advanced Research Workshop on Taxonomy of Porifera from the N.E. Atlantic and Mediterranean Sea held at Marseille, France, September 22-27, 1986Although sponges are one of the major components of littoral ecosystems, their sy.…

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Although sponges are one of the major components of littoral ecosystems, their systematics obviously lags behind that of the majority of other groups of marine invertebrates. Also the evolutionary trends in these most primitive of the Metazoans are poorly understood. The confused state of their taxonomy and the difficulties with their identification prevent their use in ecological studies. The emphasis of interest presently seems to have shifted towards chemistry, but many of the hundreds of interesting chemicals recently described in sponges pro bably have been found in mistakenly or imprecisely identified animals. This situ ation will become worse in the next few years, when a number of experts will retire and will not be replaced by new ones, owing to the difficulties that the science of systematics is facing in most countries - as exemplified during this meeting by an informal discussion on the endangered future of European Museums. Under these circumstances, it is the responsability of present sponge taxono mists to leave a less confused state and tools such as simple fauna or computerized data bases to generations following. These tools do not exist even in one of the best studied areas, the North-Eastern Atlantic (including the Mediterranean Sea).Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 344 pp. Englisch.…

Condition: New. Print on Demand pp. viii + 332.

Condition: New. PRINT ON DEMAND pp. viii + 332.