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Registros recuperados: 20
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A mesophotic record of the gall crab Opecarcinus hypostegus from a Curaçaoan reef Naturalis
Meij, S.E.T. van der; Tienderen, K.M. van; Hoeksema, B.W..
Tipo: Article / Letter to the editor Palavras-chave: Gall crab; Opecarcinus hypostegus; Curaçaoan reef; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/533930
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A new gall crab species (Brachyura, Cryptochiridae) associated with the free-living coral Trachyphyllia geoffroyi (Scleractinia, Merulinidae) Naturalis
Meij, S.E.T. van der.
A new species of gall crab is described from the free-living stony coral Trachyphyllia geoffroyi. Specimens were collected during field work in Lembeh Strait (Indonesia) and of Kudat (Malaysian Borneo). This new species, here named Lithoscaptus semperi sp. n., is the ninth species assigned to the genus. It can be separated from its congeners by not having the internal orbital angle extending beyond the external orbital angle, and by the stout female P2 merus with prominent distomesial projection. In addition, the carapace surface appears smooth, despite having small tubercles on the anterior half, and is without noticeable spines, other than those on the frontal margin. The distinctive carapace pattern in life is a diagnostic character in male specimens.
Tipo: Article / Letter to the editor Palavras-chave: Cospeciation; Host specificity; Indonesia; Malaysia; Thoracotremata; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/533934
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A new species of Fizesereneia Takeda & Tamura, 1980 (Crustacea: Brachyura: Cryptochiridae) from the Red Sea and Oman Naturalis
Meij, S.E.T. van der; Berumen, M.L.; Paulay, G..
A new species of cryptochirid crab, Fizesereneia panda van der Meij, is described and illustrated based on specimens collected from the scleractinian corals Lobophyllia cf. hemprichii and L. cf. corymbosa from the Farasan Banks, Farasan Islands, and the reefs off Thuwal in the Saudi Arabian Red Sea, and from Symphyllia recta from reefs in the Gulf of Oman. This is the second cryptochirid species with the Red Sea as type locality. It can be separated from its congeners by the subrectangular carapace, raised midline and the complete division of the carapace depressions, and reddish black colour pattern of these concavities in live specimens. This new species is the seventh assigned to Fizesereneia. A DNA barcode for the new species has been deposited in...
Tipo: Article / Letter to the editor Palavras-chave: DNA barcoding; Gall crabs; Host specificity; Lobophylliidae; Saudi Arabia; Scleractinia; Taxonomy; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/533931
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Crossing marine lines at Ternate: capacity building of junior scientists in Indonesia for marine biodiversity assessments : preliminary results of the Ternate Expedition (2009) Naturalis
Hoeksema, B.W.; Meij, S.E.T. van der.
Tipo: Report Palavras-chave: Ternate Expedition; Preliminary results; 42.94.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/361161
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Cryptic marine biota of the Raja Ampat island group : Preliminary results of the Raja Ampat Expedition (2007), Ekspedisi Widya Nusantara (E-Win) of the Indonesian Institute of Sciences (LIPI) Naturalis
Hoeksema, B.W.; Meij, S.E.T. van der.
The Raja Ampat expedition in 2007 was organized by the National Museum of Natural History Naturalis in Leiden in cooperation with the Research Centre for Oceanography (RCO-LIPI, Jakarta) as part of Ekspedisi Widya Nusantara (E-Win expedition) of the Indonesian Institute of Sciences (LIPI). The research team consisted of scientists from Indonesia, the Netherlands, Palau and the United States. The Raja Ampat islands are located northwest of Bird’s Head' peninsula in Papua, Indonesia. This area has recently gained much media attention due to its high marine biodiversity and the recent discovery of several new species of corals and fish. The expedition was based at Kri Eco Resort of Papua Diving, on Kri Island. The expedition aimed to study cryptic biota,...
Tipo: Report Palavras-chave: Cryptic marine biota; Raja Ampat; Naturalis expedition; 42.65.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/293595
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Decline of the Jakarta Bay molluscan fauna linked to human impact Naturalis
Meij, S.E.T. van der; Moolenbeek, R.G.; Hoeksema, B.W..
In 1937/38 representative mollusc collections were made in Jakarta Bay (West Java, Indonesia). New data from here and the adjacent offshore Thousand Islands archipelago (Kepulauan Seribu) became available in 2005. Although collecting efforts and sampling methods differed, a comparison of the molluscan fauna of Jakarta Bay between 1937/38 and 2005 reveals a distinct deterioration. From 1937 to 2005, Jakarta Bay received increasing amounts of sewage from the greater Jakarta area, as well as increased sediment input from the deforested West Java hinterland. Predatory gastropods and numerous mollusc species associated with carbonate (reef) substrate have vanished from Jakarta Bay, among which many edible species.
Tipo: Article / Letter to the editor Palavras-chave: Java; Kepulauan Seribu; Reef degradation; Anthropogenic influence; Scientific collections; Mollusca.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/409034
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First observations of attempted nudibranch predation by sea anemones Naturalis
Meij, S.E.T. van der; Reijnen, B.T..
On two separate occasions during fieldwork in Semporna (eastern Sabah, Malaysia), sea anemones of the family Edwardsiidae were observed attempting to feed on the nudibranch species Nembrotha lineolata and Phyllidia ocellata. These are the first in situ observations of nudibranch predation by sea anemones. This new record is compared with known information on sea slug predators.
Tipo: Article / Letter to the editor Palavras-chave: Actiniaria; Coral reef; Nudibranchia; Polyceridae; Phylidiidae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409039
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First record of a pontoniine shrimp (Caridea, Palaemonidae) in association with a boring bivalve of the genus Spengleria (Bivalvia, Euheterodonta, Gastrochaenidae) Naturalis
Fransen, C.H.J.M.; Meij, S.E.T. van der.
During fieldwork in Raja Ampat, West Papua, Indonesia, in 2007, a pontoniine shrimp, most likely belonging to the genus Anchistus, was collected from a coral boring bivalve of the genus Spengleria. This is the first record of a pontoniine shrimp living in association with a boring bivalve. As it probably concerns a juvenile shrimp, its identity remains unclear. Its affinities with the Indo-West Pacific mollusc-associated genera and with congenerics are discussed.
Tipo: Article / Letter to the editor Palavras-chave: Shrimps; Caridea; Palaemonidae; Bivalves; Bivalvia; Euheterodonta; Gastrochaenidae; West Papua; Indonesia.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/409048
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Fish, fans and hydroids: host species of pygmy seahorses Naturalis
Reijnen, B.T.; Meij, S.E.T. van der; Ofwegen, L.P. van.
An overview of the octocoral and hydrozoan host species of pygmy seahorses is provided based on literature records and recently collected field data for Hippocampus bargibanti, H. denise and H. pontohi. Seven new associations are recognized and an overview of the so far documented host species is given. A detailed re-examination of octocoral type material and a review of the taxonomic history of the alcyonacean genera Annella (Subergorgiidae) and Muricella (Acanthogorgiidae) are included as baseline for future revisions. The host specificity and colour morphs of pygmy seahorses are discussed, as well as the reliability of (previous) identifications and conservation issues.
Tipo: Article / Letter to the editor Palavras-chave: Acanthogorgiidae; Alcyonacea; Annella; Anthozoa; Hippocampus; Host specificity; Hydrozoa; Indo-Pacific; Muricella; New associations; Octocorallia; Subergorgiidae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409047
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Host relations and DNA reveal a cryptic gall crab species (Crustacea: Decapoda: Cryptochiridae) associated with mushroom corals (Scleractinia: Fungiidae) Naturalis
Meij, S.E.T. van der.
Mushroom corals of the Indo-West Pacific Fungiidae (Scleractinia) provide habitats for a rich associated fauna, including three species of gall crabs (Cryptochiridae). During the course of the present study gall crabs were sampled from many different fungiid hosts. Based on this ‘reversed’ approach - by studying coral symbionts from a host perspective - a previously unnoticed host specificity pattern was detected. The sampling of gall crab fauna per host coral combined with molecular analyses of H3 nDNA, 16S and COI mtDNA revealed a cryptic gall crab species closely related to Fungicola fagei. This new species, described hereafter as Fungicola syzygia sp. nov., is predominantly associated with the mushroom coral genera Cycloseris and Pleuractis, whereas...
Tipo: Article / Letter to the editor Palavras-chave: Cryptic species; Fungicola; Host specificity; Indo-West Pacific region; Tropical Eastern Pacific region; Scleractinia; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/519714
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Host species, range extensions, and an observation of the mating system of Atlantic shallow-water gall crabs (Decapoda: Cryptochiridae) Naturalis
Meij, S.E.T. van der.
Coral-associated invertebrates dominate the biodiversity of coral reefs. Some of the associations involving symbiotic invertebrates remain unknown or little studied. This holds true even for relatively wellstudied coral reefs, like those in the Caribbean Sea. Coral gall crabs (Cryptochiridae), obligate symbionts of stony corals, form a much-overlooked component of coral reef communities. Most recent studies on the Atlantic members of Cryptochiridae have been conducted off Brazil and little recent data have become available from the Caribbean region. During fieldwork off Curaçao (southern Caribbean Sea), eight new host coral species, belonging to four coral families, were recorded for three cryptochirid species. Kroppcarcinus siderastreicola Badaro, Neves,...
Tipo: Article / Letter to the editor Palavras-chave: Shallow-water gall crabs; Decapoda; Cryptochiridae; 42.74.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/507003
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Lioconcha lamprelli spec. nov. (Bivalvia: Veneridae) from Australia Naturalis
Moolenbeek, R.G.; Dekker, H.; Meij, S.E.T. van der.
A new venerid species of the genus Lioconcha is described from the coastal waters of eastern Queensland, Australia.
Tipo: Article / Letter to the editor Palavras-chave: Bivalvia; Veneridae; New species; Lioconcha; Australia; Queensland; Great Barrier Reef; 42.73.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/292112
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Long-term changes in coral assemblages under natural and anthropogenic stress in Jakarta Bay (1920–2005) Naturalis
Meij, S.E.T. van der; Suharsono; Hoeksema, B.W..
Coral reefs in Jakarta Bay have been subjected to scientific studies since the 1920s. Also from that time on biological collections were made. The reefs in the Jakarta Bay have been under long-term natural and anthropogenic stress. With the biological collections and historical documents the coral species richness in Jakarta Bay around 1920 was reconstructed. New data from this bay and the adjacent offshore Thousand Islands archipelago were obtained during a 2005 research expedition. A comparison of the coral assemblages between 1920 and 2005 reveals a clear decline in species numbers. The most prominent results include the near-shore disappearance of species belonging to the families Acroporidae, Milleporidae, and to a lesser extent Poritidae. The overall...
Tipo: Article / Letter to the editor Palavras-chave: Biodiversity change; Global change; Kepulauan Seribu; Reef degradation; Scientific collections; Scleractinia.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/409044
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Monophyly and phylogenetic origin of the gall crab family Cryptochiridae (Decapoda : Brachyura) Naturalis
Meij, S.E.T. van der; Schubart, C.D..
The enigmatic gall crab family Cryptochiridae has been proposed to be phylogenetically derived from within the Grapsidae (subsection Thoracotremata), based on the analysis of 16S mtDNA of one cryptochirid, Hapalocarcinus marsupialis, among a wide array of thoracotremes, including 12 species of the family Grapsidae. Here,wetest the monophyly and phylogenetic position of Cryptochiridae using the same gene, but with an extended representation of cryptochirids spanning nine species in eight of 21 genera, in addition to further thoracotreme representatives. The results show that gall crabs form a highly supported monophyletic clade within the Thoracotremata, which evolved independently of grapsid crabs. Therefore, the Cryptochiridae should not be considered as...
Tipo: Article / Letter to the editor Palavras-chave: 16S mtDNA; Coral-associated organisms; Evolutionary origin; Superfamily; 42.74.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/533929
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Opmerkelijke vondst: tropische tapijtschelp aan de Normandische kust Naturalis
Meij, S.E.T. van der.
During a week of fieldwork along the coast of Normandy, France, the author found a tropical carpet shell on the beach of Granville. Field guides could not properly identify the shell and therefore it was compared with the collections of the National Museum of Natural History in Leiden and the Zoological Museum of Amsterdam. This comparison resulted in four possible identifications - Ruditapes variegatus, Venerupis aurea, Ruditapes philippinarum and Ruditapes semidecussatus. However, the specific shell colour pattern does not fully correspond with the pattern of these four species, making identification of the shell difficult. The most likely identification seems to be Ruditapes semidecussatus. In France carpet shells are cultured for consumption. The...
Tipo: Article / Letter to the editor Palavras-chave: Carpet shell; France; Normandy; 42.65; 42.73.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/431776
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The Acropora humilis group (Scleractinia) of the Snellius expedition (1929-1930) Naturalis
Meij, S.E.T. van der; Visser, R.R..
During the Snellius expedition (1929-30) in eastern Indonesia and the Philippines, a large collection of Acropora corals was made. This collection is comprised of roughly 700 specimens, many of which remain unidentifi ed. In this paper we discuss species of the Acropora humilis group collected during the expedition and compare the records with the known distribution ranges in Indonesia. New records are found, most notably for Acropora multiacuta, A. retusa and A. fastigata.
Tipo: Article / Letter to the editor Palavras-chave: Acroporidae; Biogeography; Indonesia; New records; Philippines.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409046
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The distribution and diversity of whales and dolphins (Cetacea) in the southern North Sea: 1970-2005 Naturalis
Meij, S.E.T. van der; Camphuysen, C.J..
Between 1970 and 2005 sightings data of cetaceans in the southern North Sea were collected as part of the Marine Mammal Database of the Dutch Seabird Group. The data include incidental sightings and reports as well as results from systematic surveys and seawatching data. They are therefore difficult to correct for fluctuations in observer effort. The material was evaluated firstly to see which species occur in Dutch waters and, secondly, to see if any spatial and temporal trends in abundance can be observed. In this study the harbour porpoise (Phocoena phocoena) is excluded from the analysis, except in the discussion, where the results are put into context with data about strandings and overall abundance. The status of the 17 different species that have...
Tipo: Article / Letter to the editor Palavras-chave: Whales; Dolphins; Cetecea; Balaenoptera; Megaptera; Physeter; Hyperoodon; Mesoplodon; Globicephala; Tursiops; Lagenorhynchus; Delphinus; Stenella; Grampus; Sightings; The Netherlands; North Sea; Status; Distribution; Diversity; 42.84; 42.65; 42.94.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/431764
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The Lioconcha castrensis species group (Bivalvia : Veneridae), with the description of two new species Naturalis
Meij, S.E.T. van der; Moolenbeek, R.G.; Dekker, H..
Part of the genus Lioconcha Mörch, 1853 is reviewed. Species strongly resembling Lioconcha castrensis (Linnaeus, 1758) are discussed and two new species are described: Lioconcha arabaya n. sp. from the Northwest Indian Ocean and Lioconcha rumphii n. sp. from Thailand and Sumatra. These three species, together with Lioconcha macaulayi Lamprell & Healy, 2002, share many morphological similarities and we suspect them to be closely related. They are referred to as the Lioconcha castrensis species group. Furthermore, lectotypes of Venus castrensis Linnaeus, 1758, and Venus fulminea Röding, 1798, are designated. The latter is considered a junior synonym of V. castrensis.
Tipo: Article / Letter to the editor Palavras-chave: Indo-Pacific; Mollusca; Persian Gulf; Red Sea; Taxonomy.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/409032
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The mushroom coral as a habitat Naturalis
Hoeksema, B.W.; Meij, S.E.T. van der; Fransen, C.H.J.M..
The evolution of symbiotic relationships involving reef corals has had much impact on tropical marine biodiversity. Because of their endosymbiotic algae (zooxanthellae) corals can grow fast in tropical shallow seas where they form reefs that supply food, substrate and shelter for other organisms. Many coral symbionts are host-specific, depending on particular coral species for their existence. Some of these animals have become popular objects for underwater photographers and aquarists, whereas others are hardly noticed or considered pests. Loss of a single coral host species also leads to the disappearance of some of its associated fauna. In the present study we show which mushroom corals (Scleractinia: Fungiidae) are known to act as hosts for other...
Tipo: Article / Letter to the editor Palavras-chave: Coral reefs; Host-specificity; Interspecific associations; Marine biodiversity; Phylogenetic ecology; Stony corals; 42.65.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/431754
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Unforeseen importance of historical collections as baselines to determine biotic change of coral reefs: the Saba Bank case Naturalis
Hoeksema, B.W.; Land, J. van der; Meij, S.E.T. van der; Ofwegen, L.P. van; Reijnen, B.T.; Soest, R.W.M. van; Voogd, N.J. de.
Botanical and zoological collections may serve as archives for historical ecological research on the effects of global change and human impact on coral reef biota. Museum collections may harbour old specimens of reef-dwelling species that have become locally extinct. Such collections also help to determine whether early records of invasive species can be obtained from times when they were not yet recognized as such. A case study (2006) involving Saba Bank, Caribbean Netherlands (former Netherlands Antilles), suggests that the coral reef fauna here may have become impoverished when compared with data obtained during an earlier expedition in 1972. However, the 1972 sampling may have been incomplete, as it was performed by professional divers who were not...
Tipo: Article / Letter to the editor Palavras-chave: Biodiversity; Global change biology; Historical ecology; Invasive species; Local extinctions; Natural history museums.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409031
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