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| Harmelin, Jean-georges; Zibrowius, Helmut; Arnoux, André; Romana, Louis. |
| En 1987 G. RIVOIRE avait observé une mortalité anormale des octocoralliaireS et la disparition de la faune vagile de certains versants Est des fond rocheux situés entre 50 et 150 mètres de profondeur. Cette observation était effectuée sur les côtes françaises de Provence et de la Côte d'Azur. Des plongées réalisées par Cyana en Mars et Juin 1990 ont permis de confirmer scientifiquement ces résultats sur les tombants situés sur les hauts fonds de St Julien, au large de St Tropez. Les observations indiquent par ailleurs la possibilité d'un événement catastrophique. Deux prélèvements de l'éponge Reniera plana effectués de part et d'autre du haut fond ont permis d'analyser les teneurs en métaux lourds et PCB. La comparaison qualitative et quantitative des... |
| Tipo: Text |
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| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00132/24319/22318.pdf |
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| Zibrowius, Helmut. |
| The recent species of the genus Enallopsammia Michelotti (Madreporaria, Dendrophylliidae). Description of Enallopsammia marenzelleri, new bathyal species with wide range (Indonesia-Azores). Previously the new species had been confused together with E. profunda (Pourtalès), the latter known only from the American Atlantic between Cuba and Georgia. Already collected by the “Siboga” at the Kei Islands in 1899 and by the “Valdivia” at the Nicobares in 1899, E. marenzelleri was more recently collected in the Eastern central Atlantic: by the “Meteor” at the Great Meteor Seamount in 1967, and by the “Jean Charcot” at the Azores in 1971. The new species is compared with recent and fossil species here attributed to the same genus which is herewith revised. |
| Tipo: Article / Letter to the editor |
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| Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/504919 |
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| Zibrowius, Helmut. |
| Several associates of stylasterine corals were previously known (reviewed in the present paper) but no specialized Copepoda have been recorded thus far. Six such copepod species (described by J. H. Stock in part 2) have been found in cage-like globular galls (walls perforated) on Stylaster sanguineus (one species, from the New Hebrides), Stylaster papuensis (one species, from the Louisiade Archipelago, Papua), Conopora laevis (three species, from the Kermadec Islands and northern New Zealand), Crypthelia cryptotrema (one species, from New Caledonia). Each association appears characterized by a special type of gall, though some associations are known from one or two galls only. At least for some associations it is proved that the gall develops from a... |
| Tipo: Article / Letter to the editor |
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| Ano: 1981 |
URL: http://www.repository.naturalis.nl/record/503985 |
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