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| Registros recuperados: 68 | |
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| Potkamp, G.; Vermeij, M.J.A.; Hoeksema, B.W.. |
| Snails of the genus Coralliophila (Muricidae: Coralliophilinae) are common corallivores in the Caribbean, feeding on a wide range of host species. In the present study, the morphological and genetic variation in C. galea and C. caribaea were studied in relation to their association with host coral species at Curaçao. Differences in shell shape among snails living on different hosts were quantified using geometric morphometric and phylogenetic relationships were studied using two mitochondrial markers (12S and COI). Based on these analyses, a new species, C. curacaoensis sp. nov., was found in association with the scleractinian coral Madracis auretenra. Both C. galea and C. caribaea showed host-specific differences in shell shape, size, and shell allometry... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Genetic differentiation; Phylogenetics; 12S; COI; Corallivory; Morphology; Geometric morphometrics; Host race. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/630190 |
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| Voogd, N.J. de; Cleary, D.F.R.; Hoeksema, B.W.; Noor, A.; Soest, R.W.M. van. |
| Sponge assemblages were investigated in the Spermonde Archipelago, southwestern Sulawesi, Indonesia. In this study spatial patterns of sponge similarity among sites were significantly related to remotely sensed environmental variables, the degree of human settlement and depth, but not to the distance between sites. Both oviparous and viviparous species groups responded to similar environmental constraints, and differences in similarity were unrelated to the distance between sites. The degree of human settlement, however, was significantly related to variation in the composition of viviparous, but not oviparous species. Our results demonstrate, most importantly, the utility of remotely sensed data in predicting the spatial turnover of diverse species... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biodiversity; Indonesia; Porifera; Similarity; Spatial; 42.72. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/227743 |
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| Hoeksema, B.W.. |
| In eerdere afleveringen van de serie 'Met Naturalis in zee' is verslag gedaan over een expeditie naar Bali, die in 2001 door Naturalis werd gehouden. In oktober 2003 ging het zeeteam van Naturalis naar Oost-Kalimantan voor nieuwe verkenningen. Deze expeditie maakte deel uit van een groot Indonesisch-Nederlands programma, waarin onderzoekers van diverse instituten participeerden. Dit artikel is het eerste in een reeks over allerlei aspecten van het onderwaterleven van het Berau gebied. Een gebied dat niet alleen interessant is voor onderzoek, maar ook geschikt voor een avontuurlijke vakantiereis. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Koraalrifonderzoek; Indo-Pacifisch gebied; Berau; Oost-Kalimantan; 42.65. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/270184 |
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| Hoeksema, B.W.. |
| Ze hadden het slechter kunnen treffen, ja. De locatie is inderdaad uniek, ingeklemd tussen het Hilton Hotel en Hooks Hut, direct aan, zeg maar op het strand gelegen. Maar een lange duikvakantie waarbij twee keer per dag onderwater wordt gegaan, nee, dat gaat Davy van Doorn, Frank Stokvis, Bastian Reijnen en Nicolette Snijders, de enige vrouw van het kwartet Leidse studenten, te ver. Gewerkt moet er voor de studiepunten zeker worden. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Curaçao; Caribische Zee; Mariene fauna; 42.65. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/270254 |
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| Hoeksema, B.W.. |
| Bleaching was studied in populations of phylogenetically closely related species (n = 21) of mushroom corals (Scleractinia: Fungiidae) around Pari Island (Java Sea) during a period of excessive seawater warming in 1983. The interspecific variation in the proportions of affected individuals was significant. Spatial variation in the degree of bleaching anlong fungiid assemblages depended much on relative species abundances. Mushroom corals In relatively stagnant water of lagoons and on the inner reef flat showed little bleaching. Many of the outer reef mushroom corals at ≤ 9 m depth were affected, but only a few at greater depths (≥15 m). In most affected fungiids, the bleached part was pale (associated with pigment loss) instead of white (assumedly caused... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mushroom corals; Scleractinia; Fungiidae; Bleaching; Java Sea; Pari Island; 42.79. |
| Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/227741 |
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| Hoeksema, B.W.. |
| The coastal waters of East Kalimantan are part of the western boundary of the Indo-West Pacific centre of maximum marine biodiversity. During the pilot phase of the East Kalimantan Program (EKP) this has been tested by various specialists who used model taxa to test this hypothesis. Emphasis has been put on the species-rich coral reefs and islands that show reef communities in association with mangroves, seagrass, and algae. A range of habitats has been surveyed, varying in distance offshore (with decreasing salinity, turbidity, sedimentation and nutrient load): fringing reefs along the mainland shore, offshore patch reefs, delta-front barrier reefs, and uplifted atolls. The atolls consist of limestone rock and contain shallow enclosed marine lakes with a... |
| Tipo: Report |
Palavras-chave: Marine biodiversity; Berau region; Kalimantan; Indonesia; 42.94. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/268594 |
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| Hoeksema, B.W.; Lane, D.J.W.. |
| Brunei Darussalam is situated on the northwest coast of Borneo, just outside the westernmost boundary of the area presently recognised as the centre of maximum marine biodiversity, the so-called Coral Triangle. This diversity is particularly quantified with regard to numbers of reef coral species. Most coral reefs of Brunei are offshore, submerged patch reefs, which makes them hard to discern from the water surface. Few coral studies have been carried out here, although recently an extensive reef coral inventory has been published for Brunei. The present study builds on this inventory by presenting a focus on the mushroom coral fauna of Brunei, based on a survey of the family Fungiidae at 17 sites varying in distance offshore. The purpose of this study is... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reef corals; Species richness; Submerged reefs; Borneo; 42.79. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/507002 |
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| Registros recuperados: 68 | |
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