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Registros recuperados: 68 | |
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Hoeksema, B.W.. |
Uit het artikel "Over de rugschildjes van Sepolia atlantica en andere kleine inktvisjes" (Buizer & Doeksen, 1977) blijkt dat resten van vinstralen van in zee levende beenvissen, behalve in die vissen zelf, ook in schelpengruis op het strand aangetroffen kunnen worden. In het laatste geval is echter het verband verloren gegaan, dat er bestaat tussen de plaats en de bouw van de vinstraal enerzijds en de funktie daarvan anderzijds. In het kort volgt hieronder het resultaat van een onderzoekje naar de bouw en de funktie van met name de staartvinstralen, uitmondend in een vergelijking met de bevindingen van Buizer & Doeksen. |
Tipo: Article / Letter to the editor |
Palavras-chave: Beenvissen; Vinstralen; 42.81. |
Ano: 1978 |
URL: http://www.repository.naturalis.nl/record/268954 |
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Reijnen, B.T.; Hoeksema, B.W.; Gittenberger, E.. |
Ovulid gastropods and their octocoral hosts were collected along the leeward coast of Curaçao, Netherlands Antilles. New molecular data of Caribbean and a single Atlantic species were combined with comparable data of Indo-Pacific Ovulidae and a single East-Pacific species from GenBank. Based on two DNA markers, viz. CO-I and 16S, the phylogenetic relationships among all ovulid species of which these data are available are reconstructed. The provisional results suggest a dichotomy between the Atlantic and the Indo-Pacific taxa. Fully grown Simnialena uniplicata closely resembles juvenile Cyphoma gibbosum conchologically. Cymbovula acicularis and C. bahamaensis might be synonyms. The assignments of Caribbean host species for Cyphoma gibbosum, C.... |
Tipo: Article / Letter to the editor |
Palavras-chave: Anthozoa; Alcyonacea; Caribbean; Curaçao; Molecular phylogeny; Symbiosis; 42.73. |
Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/336926 |
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Hoeksema, B.W.. |
In 'Met Naturalis in zee' van mei 2004 komt brandgevaar onderwater aan de orde. Aanleiding is een onderzoek aan brandkoralen, in het Engels 'fire corals' genoemd. Duikers en snorkelaars leren deze Millepora koralen snel herkennen na onbedoeld contact met het koraaloppervlak. Uit kleine poriën in dat gladde opppervlak steken haarfijne tentakels die netelkapsels bevatten. Daar brandt iemand zich meestal geen tweede keer aan. Dat kan heel anders bij dieren die zo goed gecamoufleerd zijn en zo venijnig pijn doen, dat het slachtoffer zich vaak niet realiseert wat hem is overkomen en ook niet direct ziet wie de boosdoener is. |
Tipo: Article / Letter to the editor |
Palavras-chave: Millepora; Brandkoraal; 42.72. |
Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/270359 |
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Gittenberger, A.; Hoeksema, B.W.. |
Examination of about 60,000 scleractinian corals of the families Dendrophylliidae, Euphylliidae and Fungiidae for the presence of associated wentletrap snails (Gastropoda: Epitoniidae) revealed various ectoparasitic life history strategies. Twenty Indo-Pacific wentletrap species were found, which were either host-specific or generalist. Most species were associated with mushroom corals, especially free-living species belonging to the Fungiidae. Snails showed different preferences with regard to their position relative to mushroom corals, the host’s size and its substrate. No preferences for depth were found. Infestation rates of mushroom corals in multi-species assemblages were negatively correlated with coral densities, which indicates that epitoniid... |
Tipo: Article / Letter to the editor |
Palavras-chave: Coral-mollusc associations; Fungiidae; Indo-Pacific; Parasitic snails; Scleractinia; 42.73. |
Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/436822 |
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Razak, T.B.; Hoeksema, B.W.. |
This revision of Indonesian Millepora species is based on the morphology of museum specimens and photographed specimens in the field. Based on the use of pore characters and overall skeleton growth forms, which are normally used for the classification of Millepora, the present study concludes that six of seven Indo-Pacific species appear to occur in Indonesia, viz., M. dichotoma Forskål, 1775, M. exaesa Forskål, 1775, M. platyphylla Hemprich & Ehrenberg, 1834, M. intricata Milne-Edwards, 1857 (including M. intricata forma murrayi Quelch, 1884), M. tenera Boschma, 1949, and M. boschmai de Weerdt & Glynn, 1991, which so far was considered an East Pacific endemic. Of the 13 species previously reported from the Indo-Pacific, six were synonymized. M.... |
Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomic revision; Millepora; Indonesia; New records; M. boschmai; 42.79. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/220318 |
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Registros recuperados: 68 | |
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