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| Registros recuperados: 11 | |
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| Gili, J.-M.; Alvà, V.; Coma, R.; Orejas, C.; Pagès, F.; Ribes, M.; Zabala, M.; Arntz, W.; Bouillon, J.; Boero, F.; Hughes, R.G.. |
| Benthic suspension feeders are abundant in littoral and shallow sub-littoral ecosystems, where they feed on the plankton and on organic matter suspended in the water column. Recent studies indicate that active suspension feeders with powerful water filtration mechanisms (e.g., bivalve molluscs) may exert an important influence on the abundance and production of phytoplankton, and probably zooplankton as well. Passive suspension feeders, such as hydrozoans, have received less attention, and their effect on shallow planktonic communities is poorly understood. This paper presents evidence that hydrozoans, which make only a minor contribution to benthic community biomass, capture large amounts of zooplankton and seston, and that they may play an important role... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Benthic passive suspension feeders; Shallow marine ecosystems; Hydroids.; 42.72; 42.94. |
| Ano: 1998 |
URL: http://www.repository.naturalis.nl/record/317751 |
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| Boero, F.; Bouillon, J.; Kubota, S.. |
| The newly liberated, immature medusae of H. scandens, Hebella furax, H. muscensis, and the liberable eumedusoid of H. dyssymetra are described. The taxonomy of the medusa-producing Hebellinae is revised in the light of life cycle features. Due to inconsistencies between skeletal and medusan features, Hebellopsis is merged into Hebella. The new genus Anthohebella is proposed for the hebellids with swimming gonophores. All the nominal species referred to Hebella and Hebellopsis are discussed; out of the 45 nominal species referred at least once to Hebella and Hebellopsis, 15 are retained as valid: 11 are referred to Hebella and four to Anthohebella gen. nov.; 12 nominal species are considered conspecific with currently recognized species referred to the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cnidaria; Hydrozoa; Hydroidomedusae; Leptomedusae; Taxonomy; Paedomorphosis; Life cycle.; 42.72. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/317865 |
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| Bouillon, J.; Boero, F.. |
| The Hydrozoa, on the basis of embryological, developmental and morphological features, are considered as a superclass of the phylum Cnidaria comprising three classes: the Automedusa (with the subclasses: Actinulidae, Narcomedusae and Trachymedusae), characterised by direct development of the planula into a medusa; the Hydroidomedusa (with the subclasses: Anthomedusae, Laingiomedusae, Leptomedusae, Limnomedusae, and Siphonophorae), characterised by a polyp stage budding medusae through a medusary nodule; and the Polypodiozoa, with complex endocellular parasitic life cycles. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/303067.pdf |
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| Pagliara, P.; Bouillon, J.; Boero, F.. |
| Settlement delays can be important to prevent propagule waste when proper settling substrates are not immediately available. Under laboratory conditions, the planulae of <i>Clytia viridicans</i> underwent two alternative developmental patterns. Some settled on the bottom, forming a hydranth-gonotheca complex that produced up to four medusae and later either degenerated or gave rise to a hydroid colony. Other planulae settled right below the air-water interface, forming floating colonies that eventually fell to the bottom and settled. <i>Halecium nanum</i> released planulae with a rich population of symbiotic zooxanthellae that survived into a rearing jar for three months. After a long period of apparent quiescence (possibly fuelled... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrozoa. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/232425.pdf |
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| Bouillon, J.; Pagès, F.; Gili, J.-M.; Palanques, A.; Puig, P.; Heussner, S.. |
| Several species of hydromedusae are reported from material collected by sediment traps placed in the Lacaze-Duthiers submarine canyon, off Banyuls (north-western Mediterranean). Two new taxa <i>Guillea canyonincolae</i> gen. nov. et sp. nov, and <i>Parateclaia euromarge</i> fam. nov., gen. nov. et sp. nov., are described. The existence of highly-specific hydromedusa populations in other Mediterranean canyons which appear to be related via geological history, topography, hydrographic and ecological features peculiar to each canyon, is discussed in relation to these new records. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Guillea canyonincolae; Hydromedusae; Parateclaia euromarge. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/232623.pdf |
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| Bouillon, J.; Massin, C.; Kresevic, R.. |
| Non siphonophoran hydrozoans from the collections of the RBINS, including 769 species, are presented according to the most current use in the actual literature. These collections house type material of 66 nominal species and varieties. For each species, and whenever possible, the locality, the reference number in the collection, the number of specimens, of colonies and of microscopic slides, the mode of preservation (alcohol, formalin, dry) and the date of collecting are given. |
| Tipo: Info:eu-repo/semantics/book |
Palavras-chave: Taxonomy; Hydroidomedusae. |
| Ano: 1995 |
URL: http://www.vliz.be/imisdocs/publications/276389.pdf |
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| Miglietta, M.P.; Tommasa, L.D.; Denitto, F.; Gravili, C.; Pagliara, P.; Bouillon, J.; Boero, F.. |
| The behavioural patterns of 26 species of Antho- and Leptomedusae (with or without medusa stage) were investigated by video recordings. The analysed activities were: answers to mechanical stimuli, prey capture and ingestion, digestion, egestion, and swimming. The quantity of behavioural patterns identified in the small number of hydrozoan diversity studied so far is sufficient to demonstrate that these supposedly "simple" animals have evolved a complex array of responses to both external and internal stimuli. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthomedusae; Cnidaria [cnidarians]; Hydrozoa; Leptomedusae. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/232610.pdf |
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| Gravili, C.; Pagliara, R.; Vervoort, W.; Bouillon, J.; Boero, F.. |
| The papers on hydroidomedusae published from 1911 to 1997 total 10,934. They have been assigned to the following categories: faunistics and systematics; sub-organismal biology; ecology; evolution; life cycles; paleontology. The general trend, comprising all papers, can be divided into four time intervals: the first (1911-1939) with an average of sixty papers/year and with a slight decrease due to First World War; the second one (1940-1947), with an average of 38 papers/year, marked by a dramatic decrease coinciding with Second World War; the period 1948-1991 shows a steady increase until the mid-Seventies, when a small decrease occurred, followed by an increasing trend reaching its apex in the late Eighties-early Ninenties with a record of 296 papers in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cnidaria [cnidarians]; Hydrozoa. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/232678.pdf |
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| Registros recuperados: 11 | |
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