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Hendrik Gheerardyn

Hendrik Gheerardyn
Eurofins Aquasense

PhD in Biology

About

46
Publications
11,010
Reads
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2,055
Citations
Education
October 2002 - April 2007
Ghent University
Field of study
  • Biology
October 1998 - June 2002
Ghent University
Field of study
  • Biology

Publications

Publications (46)
Article
Full-text available
The harpacticoid copepod fauna associated with the coral degradation zone of Lophelia pertusa (Linnaeus,1758) reefs was investigated for the first time in the Porcupine Seabight (NE Atlantic). The species list of the coral degradation zone includes 157 species, 62 genera and 19 families, and the most species-rich families were Ectinosomatidae (36 s...
Article
Full-text available
Three microhabitat types (dead coral fragments, coral gravel and coral sand) were distinguished and sampled at two locations (Matemwe and Makunduchi) in a tropical lagoon (Zanzibar Island, Tanzania), and the community structure, habitat preferences and biodiversity of the associated harpacticoid copepod fauna was investigated. The harpacticoid faun...
Article
Both sexes of Laophontodes macropodia Gee and Fleeger, 1986 (Ancorabolidae, Laophontodinae) are redescribed in detail based on type material from the South Orkney Islands and other material from King George Island (South Shetland Islands). The species is fixed as the type of a new genus Calypsophontodes on account of the sexually dimorphic setation...
Article
Multicorer samples for meiofaunal study were obtained within the framework of the international project CeDAMar, at 21 stations occupied during the DIVA and ANDEEP campaigns (2000, 2002 and 2005) to the southern Atlantic Ocean (Guinea, Angola and Cape Basins) and the Southern Ocean (Weddell and Scotia Seas), respectively. A total of 311 adult Param...
Article
This paper reports the first records of the dwarf surf clam Mulinia lateralis (Say, 1822) outside its native area, which is the western Atlantic Ocean, ranging from the Gulf of St Lawrence to the Gulf of Mexico. In 2017 and 2018 specimens were found in the Dutch coastal waters (North Sea), in the Wadden Sea and in the Westerschelde estuary, in dens...
Article
The large-scale dispersal of deep-sea harpacticoid copepods is an increasing focus for ecological studies. A fundamental prerequisite for monitoring and explaining their geographical distribution is precise descriptions of their morphology. Four new, closely related species of the family Paramesochridae (Copepoda, Harpacticoida) were found in the d...
Article
Full-text available
Deep seabed mining is potentially imminent in the Clarion Clipperton Fracture Zone (CCFZ; northeast Pacific). Seabed collectors will remove polymetallic nodules and the surrounding surface sediments, both inhabited by meiofauna, along their path. To determine potential impacts of polymetallic nodule removal, we investigated the importance of nodule...
Article
Full-text available
Several species new to the area were collected while monitoring Dutch marine waters using a dredge. The varunid crab Asthenognathus atlanticus Monod, 1933 was recorded for the first time in the North Sea. Until 2008, this relatively rare crab was known from the west coast of Africa and the western Mediterranean to northern Brittany in the north. In...
Preprint
Full-text available
Deep seabed mining is imminent in the Clarion Clipperton Fracture Zone (CCFZ; northeast Pacific). Seabed collectors will remove the polymetallic nodules and the surrounding surface sediments, both inhabited by meiobenthos, along their path. To determine potential impacts of polymetallic nodule removal, we investigated the importance of nodule prese...
Article
Neoargestes laevis sp. nov. (Copepoda, Harpacticoida, Argestidae), the third species of the genus, is described from the Clarion Clipperton Fracture Zone (Pacific Ocean), and a re-description of the holotype of Neoargestes incertus Becker, 1979 is provided. The generic diagnosis of Neoargestes Drzycimski, 1967 is amended and its allocation to Arges...
Article
Full-text available
The non-indigenous bivalve Theora lubrica has been introduced to the southwestern delta area of the Netherlands. For several years, it has been misidentified as Abra nitida, a species with similar appearance. Theora lubrica differs from A. nitida in the presence of an internal ridge (from umbo to anteroventral margin) and a bifid cardinal tooth in...
Article
Two new species of the genus Laophontodes T. Scott are described here, L. horstgeorgei sp. nov. from the littoral zone of a sandy beach on Viti Levu (Fiji Islands) and L. sabinegeorgeae sp. nov. from different depths on the Patagonian continental slope (Magellan Region, Chile). Furthermore, Laophontodes bicornis A. Scott and L. whitsoni T. Scott ar...
Article
Full-text available
Colonization experiments were conducted in a tropical lagoon (Zanzibar Island, off the western coast of Tanzania) to investigate the temporal dynamics and mode of colonization of the harpacticoid copepods community on dead coral fragments. There was fast colonization of the coral fragments attaining a substantial diversity after only two days. The...
Article
Full-text available
The genus Orthopsyllus Brady & Robertson, 1873 (Harpacticoida, Orthopsyllidae) presently includes six species, as well as six subspecies considered within its type species. Orthopsyllus koprii, new species, is described from Barton Peninsula, Maxwell Bay, King George Island, Antarctica and can be distinguished from its congeners by the presence of...
Article
Full-text available
Based on original and on published databases, a compendium of the Harpacticoida of the South China Sea is presented, and the distributional range of species is discussed. Up to now, a total of 77 harpacticoid species belonging to 57 genera and 19 families have been recorded in this region. Twenty of these species, collected in Nha-Trang Bay (Vietna...
Article
Full-text available
The assemblage structure of harpacticoid copepods inhabiting the soft sediments of littoral and sublittoral areas of Cat Ba archipelago (South China Sea) is analysed. Three basic types of harpacticoid taxocenes were observed in the upper sublittoral. Main dominant species of taxocenes were Amphiascoides sp., Stenhelia latioperculata, Paramphiascell...
Article
Full-text available
The influence of microhabitat type on the diversity and community structure of the harpacticoid copepod fauna associated with a cold-water coral degradation zone was investigated in the Porcupine Seabight (North-East Atlantic). Three substrate types were distinguished: dead fragments of the cold-water coral Lophelia pertusa, skeletons of the glass...
Article
Full-text available
Biological structures exert a major influence on species diversity at both local and regional scales on deep continental margins. Some organisms use other species as substrates for attachment, shelter, feeding or parasitism, but there may also be mutual benefits from the association. Here, we highlight the structural attributes and biotic effects o...
Article
Full-text available
Biological structures exert a major influence on species diversity at both local and regional scales on deep continental margins. Some organisms use other species as substrates for attachment, shelter, feeding or parasitism, but there may also be mutual benefits from the association. Here, we highlight the structural attributes and biotic effects o...
Data
The influence of microhabitat type on the diversity and community structure of the harpacticoid copepod fauna associated with a cold-water coral degradation zone was investigated in the Porcupine Seabight (North-East Atlantic). Three substrate types were distinguished: dead fragments of the cold-water coral Lophelia pertusa, skeletons of the glass...
Article
Four new species of Ancorabolina George, 2006 (Copepoda: Harpacticoida: Ancorabolidae) are described: Ancorabolina belgicae sp. nov. (from the Porcupine Seabight, north-east Atlantic Ocean), Ancorabolina anaximenesi sp. nov. and Ancorabolina galeata sp. nov. (both from Anaximenes Mountain, eastern Mediterranean Sea), and Ancorabolina divasecunda sp...
Article
Full-text available
The meiobenthologists' international meetings began officially in Tunisia, in 1969, when 28 researchers gathered to discuss the taxonomy and ecology of meiobenthos. A second meeting followed four years later in York (UK), in 1973, and a third one occurred in Hamburg (Germany) in 1977. From then onwards, the tri-annual International Meiofauna Confer...
Article
Full-text available
The female of Atergopedia longicaudata sp. n. is described from dead cold-water coral fragments collected from the Porcupine Seabight (NE Atlantic). The new species is the fourth representative of the family Novocriniidae (Copepoda, Harpacticoida); it can be distinguished from its congeners by the elongate caudal rami and the ancestral armature on...
Article
Full-text available
The full characterized list of known species of Harpacticoida is presented for the South China Sea based on original and literature data. Three Harpacticoida taxocenes from soft sediments are described on the littoral and sublittoral of shallows of Nha Trang Bay (Vietnam). The first taxocene is represented by dominating species of the genuses Phyll...
Article
Full-text available
A new species of Parameiropsis Becker, 1974 is described from the Porcupine Seabight and questions about the position of this genus within Harpacticoida are briefly addressed. The new species is the smallest representative of the genus and extends the depth and distribution range of Parameiropsis to 880 m and 51°25.9'N. Parameiropsis antennafortis...
Article
The first deep-sea representative of Halophytophilus Brian, 1919 is described from samples of dead cold-water coral fragments, glass sponge skeletons and underlying sediment collected from the Porcupine Seabight (NE Atlantic). Halophytophilus lopheliae sp. nov. can be distinguished from its congeners by the dimensions of the P1 endopod and the posi...
Article
The first deep-sea representative of Halophytophilus Brian, 1919 is described from samples of dead cold-water coral fragments, glass sponge skeletons and underlying sediment collected from the Porcupine Seabight (NE Atlantic). Halophytophilus lopheliae sp. nov. can be distinguished from its congeners by the dimensions of the P1 endopod and the posi...
Article
Full-text available
The biodiversity of meiofauna in the coral degradation zone along the Kenyan coast was examined with special emphasis on the most abundant taxa, Copepoda and Nematoda. Communities from three microhabitat types (coralline sediment, coral gravel and coral fragments) at two locations (Watamu and Tiwi Beach) were analysed. The total number of meiofauna...
Article
Full-text available
The spatial diversity of meiofauna from sea grass beds of Pujada Bay (the Philippines), was studied with special emphasis on harpacticoid copepods. Sediment cores were obtained from areas adjacent to the different species of sea grasses. Meiofauna was enumerated at higher taxon level and harpacticoid copepods were identified to genus level. Diversi...
Data
FIGURE 8. Halophytophilus lopheliae sp. nov. (male, COP 7014). A, left antennule, dorsal; B, segment 4 of left antennule, dorsal; C, segment 5 of right antennule.
Data
FIGURE 2. Halophytophilus lopheliae sp. nov. (female, COP 7013). A, antennule, dorsal; B, segment 3 of antennule, dorsal; C, enp- 2 of antenna; D, antenna (asterisk indicating position of missing seta, drawn in C).
Data
FIGURE 3. Halophytophilus lopheliae sp. nov. A – B, I (female, COP 7013); C (female, COP 7015); D (female, COP 7018); E (female, COP 7016); F – H (female, COP 7020). A, labrum; B, palp of mandible; C – D, gnathobase of mandible; E, maxillule, posterior; F, maxilla, posterior (armature of endopod omitted); G, endopod of maxilla, posterior (armature...
Data
FIGURE 6. Halophytophilus lopheliae sp. nov. (female, COP 7013). A, urosome (copulatory pore arrowed), ventral; B, P 5; C, caudal ramus, ventral; D, caudal ramus, lateral; E, caudal ramus, dorsal.
Article
Full-text available
To date, only two species are known in the laophontid genus Tapholeon Wells, 196723. Wells , J. B. J. 1967. The littoral Copepoda (Crustacea) of Inhaca Island, Mozambique.. Transactions of the Royal Society of Edinburgh, 67(7): 189–358. View all references (Copepoda, Harpacticoida). In the present contribution, a redescription of the type species...
Article
A new genus and species of Laophontidae, Spiniferaphonte ornate n. gen., n. sp., is described from the coast of Kenya. The new genus is closely related to Laophontina and Wellsiphontina as shown by the following synapomorphies: a denticulate operculum, a sexually dimorphic P4 exopod (reduced chaetotaxy of the ultimate segment in the male), and the...
Article
Paralaophonte harpagone sp. n. is described from the coast of Kenya. Its most distinguishing feature is the robust, enlarged and specialised maxilliped, present in both sexes. This maxilliped is similar in robustness and position to the highly specialised maxilliped in the laophontid genus Namakosiramia Ho & Perkins, 1977 the two members of which l...
Article
Full-text available
Two new monospecific genera of the harpacticoid family Laophontidae T. Scott, 1905 are described here. Apistophonte wasiniensis gen. et sp. n. was found along the Kenyan coast and Propephonte duangitensis gen. et sp. n. along the northern coast of Papua New Guinea. They differ from most other laophontid genera in the absence of sexual dimorphism in...
Article
Two new monospecific genera of the harpacticoid family Laophontidae T. Scott, 1905 are described here. Apistophonte wasiniensis gen. et sp. n. was found along the Kenyan coast and Propephonte duangitensis gen. et sp. n. along the northern coast of Papua New Guinea. They differ from most other laophontid genera in the absence of sexual dimorphism in...
Article
Copepods are known as important consumers of primary production and are eaten by larger animals. They therefore form a main link to higher trophic levels. While feeding pathways and specificity of planktonic copepods have been well studied, the selectivity of the benthic harpacticoid copepods is far less documented. A better knowledge of the functi...
Article
Full-text available
A new genus of the harpacticoid family Laophontidae is described and named Peltidiphonte gen. n. Eight new species are assigned to this genus; they were collected from different locations in the Indo-West Pacific Ocean, including the Comoros, the Kenyan coast, the Red Sea, the Andaman Islands, the northern coast of Papua New Guinea, the Solomon Isl...

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Project (1)
Project
Analysis of biological samples in order to get a first impression of the deep-sea ecosystem in the CCFZ (service contract with Global Sea Mineral Resources NV)