According to Wikipedia, Han Nijssen was a Dutch ichthyologist. Nijssen was born in Amsterdam and obtained his PhD at the University of Amsterdam in May 1970 with the dissertation Revision of the Surinam catfishes of the genus Corydoras. Later he was a curator at Zoölogisch Museum in Amsterdam. Nijssen worked extensively with fish from South America, and was the author of several species, e.g. Corydoras weitzmani and Corydoras xinguensis. Collaborating with Isaäc Isbrücker he described, among others, the group Hypancistrus and the species Hypancistrus zebra and Corydoras panda. He also collaborated with Sven O. Kullander.
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Two new species and a new genus of Neotropical mailed catfishes of the subfamily Loricariinae Swainson, 1838 (Pisces, Siluriformes, Loricariidae) (1978) (21)
Two new species of the callichthyid catfish genus Corydoras from Brazil (Pisces, Siluriformes, Callichthyidae) (1973) (17)
On three specimens of Lagenorhynchus albirostris Gray, 1846 (Mammalia, Cetacea) (1964) (14)
A catalogue of the type-specimens of Recent fishes in the Institute of Taxonomic Zoology (Zoölogisch Museum), University of Amsterdam, The Netherlands (1982) (14)
Aspidoras virgulatus n. sp., a plated catfish from Espírito Santo, Brazil (Pisces, Siluriformes, Callichthyidae) (1980) (14)
Notes on the Guiane species of Corydoras Lacépède, 1803, with descriptions of seven new species and designation of a neotype for Corydoras punctatus (Bloch, 1794) — (Pisces, Cypriniformes, Callichthyidae) (1967) (13)
Review of the genus Corydoras from Colombia, with descriptions of two new species (Pisces, Siluriformes, Callichthyidae) (1983) (12)
Four new species and one new subspecies of the catfish genus Corydoras from Ecuador, Colombia and Brazil (Pisces, Siluriformes, Callichthyidae) (1970) (12)
On Hypopygus lepturus, a little known dwarf gymnotid fish from South America (Pisces, Cypriniformes, Gymnotoidei) (1972) (10)
Curimata punctata, a new uniquely pigmented species of curimatid from the Marowijne river basin of Surinam and French Guiana (Pisces, Characiformes) (1986) (10)
The North Sea houting, Coregonus oxyrinchus, back in the Netherlands (Pisces, Salmoniformes, Salmonidae) (1997) (9)
Two new species and one new subspecies of the South American catfish genus Corydoras (Pisces, Siluriformes, Callichthyidae) (1971) (8)
Lithoxus stocki, a species new to science of ancistrin loricariid catfish from the Maroni River drainage, with a comparison of the primary type specimens of the six species of Lithoxus (syn.: Paralithoxus) (Pisces, Siluriformes, Loricariidae) (1990) (7)
On the identity of Corydoras nattereri Steindachner, 1877 with the description of a new species, Corydoras prionotos (Pisces, Siluriformes, Callichthyidae) (1980) (7)
Two new species of the catfish genus Corydoras from Brazil and Peru (Pisces, Siluriformes, Callichthyidae) (1971) (7)
Dentectus barbarmatus, a new genus and species of mailed catfish from the Orinoco Basin of Venezuela (Pisces, Siluriformes, Loricariidae) (1982) (7)
Corydoras ornatus, a new species of callichthyid catfish from the Rio Tapajós Drainage, Brazil (Pisces, Siluriformes, Callichthyidae) (1976) (6)
Exastilithoxus hoedemani, a new species of Mailed Catfish from Rio Marauiá, Est. Amazonas, Brazil (Pisces, Siluriformes, Loricariidae) (1985) (6)
Neblinichthys pilosus, a new genus and species of mailed catfish from the Rio Baria system, southern Venezuela (Pisces, Siluriformes, Loricariidae) (1986) (6)
Review of the South American characiform fish genus Chilodus, with description of a new species, C. gracilis (Pisces, Characiformes, Chilodontidae) (1988) (4)
Gymnotus carapo and G. anguillaris (syn.: G. coropinae), two often confused species of gymnotid fishes (Pisces, Cypriniformes) (1968) (4)
On Hemiodontichthys acipenserinus and Reganella depressa, two remarkable Mailed Catfishes from South America (Pisces, Siluriformes, Loricariidae) (1974) (4)
Brochis britskii, a new species of plated catfish from the upper Rio Paraguai System, Brazil (Pisces, Siluriformes, Callichthyidae) (1983) (2)
The South American Mailed Catfishes of the genus Pseudoloricaria Bleeker, 1862 (Pisces, Siluriformes, Loricariidae) (1976) (2)
The occurrence of the Flying Fish, Hirundichthys speculiger (Valenciennes, 1847), in the North Sea (Pisces, Atheriniformes, Exocoetidae) (1972) (1)
First record of the worm pipefish, Nerophis lumbriciformis (Pennant, 1776) in coastal waters of the Netherlands, with notes on other animal species recently recorded from the Oosterschelde (1983) (1)
The occurrence of Brama brama (Bonnaterre, 1788) along the coast of the Netherlands in 1974 and 1975 (Pisces, Perciformes, Bramidae) (1976) (1)
Hypostomus nematopterus, a new species of mailed catfish from the Oyapock River system, French Guiana (Pisces, Siluriformes, Loricariidae) (1984) (1)
The occurrence of Cynoglossus browni Chabanaud, 1949, in the North Sea (1966) (1)
The first record of Trachinotus ovatus (Linnaeus, 1758) in the coastal waters of the Netherlands (Pisces, Perciformes, Carangidae) (1977) (0)
A usefulness study of six Alstroemeria cultivars. Cultivars make no contribution towards extending the cropping period. (1990) (0)
Records of Brama brama (Bonnaterre, 1788) along the coast of the Netherlands in 1976 (Pisces, Perciformes, Bramidae) (1978) (0)
A usefulness study of carnations. Outward appearance of large-flowered cultivars is assessed favourably. (1990) (0)
The shark Dalatias licha (Bonnaterre, 1788) caught alive in the coastal waters of the Netherlands (Pisces, Selachii, Dalatiidae) (1976) (0)
A Lantern Fish, Hygophum benoiti (Cocco, 1838), washed ashore in The Netherlands (Pisces, Myctophoidei, Myctophidae) (1972) (0)
The first record of Sarpa salpa (Linnaeus, 1758) in the North Sea with notes on recent captures of Boops boops (Linnaeus, 1758) in the coastal waters of the Netherlands (Pisces, Perciformes, Sparidae) (1976) (0)
DETERMINING STANDARDS FOR WATER QUALITY IN CLOSED NUTRIENT SYSTEMS FOR DUTCH FLORICULTURE (1993) (0)
Leporacanthicus triactis, a new loricariid fish from upper Orinoco River tributaries in Venezuela and Colombia (Pisces, Siluriformes, Loricariidae) (1992) (0)
[Influence of vernalization on growth and development of unrooted cutting of Gypsophila paniculata 'Perfecta'] (1999) (0)
The occurrence of the Golden Grey Mullet, Liza aurata (Risso, 1810) in the coastal waters of the Netherlands (Pisces, Perciformes, Mugilidae) (1981) (0)
A usefulness study of Alstroemeria. A warm summer has a negative effect on shoot production. (1990) (0)
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