| The destruction of an endemic species flock: quantitative data on the decline of the haplochromine cichlids of Lake Victoria F Witte, T Goldschmidt, J Wanink, M van Oijen, K Goudswaard, ... Environmental biology of fishes 34, 1-28, 1992 | 638 | 1992 |
| An introduction to the taxonomy and morphology of the haplochromine Cichlidae from Lake Victoria CDN Barel, F Van Oijen, MJP, Witte, ELM Witte-Maas Netherlands Journal of Zoology 27, 333-389, 1977 | 383* | 1977 |
| Species extinction and concomitant ecological changes in Lake Victoria F Witte, T Goldschmidt, PC Goudswaard, W Ligtvoet, MJP Van Oijen, ... Netherlands Journal of Zoology 42 (2), 214-232, 1992 | 362 | 1992 |
| Taxonomy, ecology and fishery of Lake Victoria haplichromine trophic groups F Witte, MJP Van Oijen Zoologische Verhandelingen 262, 1-47, 1990 | 150 | 1990 |
| The shape of the skeletal elements in the head of a generalized Haplochromis species: H. elegans Trewavas 1933 (Pisces, Cichlidae) CDN Barel Neth. J. Zool. 26, 163-265, 1976 | 150 | 1976 |
| An introduction to ecological and taxonomic investigations on the haplochromine cichlids from the Mwanza Gulf of Lake Victoria F Witte, MJP Van Oijen, ELM Witte-Maas Netherlands Journal of Zoology 31 (1), 149-174, 1980 | 107 | 1980 |
| Ecological differentiation among the piscivorous haplochromine cichlids of Lake Victoria (East Africa) MJP Van Oijen Netherlands Journal of Zoology 32 (3), 336-363, 1981 | 49 | 1981 |
| Appendix I. Key to Lake Victoria fishes other than haplochromine cichlids MJP Van Oijen Fish stocks and fisheries of Lake Victoria. A handbook for field …, 1995 | 43 | 1995 |
| The generic classification of the haplochromine cichlids of Lake Victoria, East Africa MJP Van Oijen Zoologische Verhandelingen 302 (2), 57-110, 1996 | 40 | 1996 |
| Fish fauna of the Nile F Witte, MJP van Oijen, FA Sibbing The Nile: origin, environments, limnology and human use, 647-675, 2009 | 38 | 2009 |
| Intraspecific variation of haplochromine cichlids from Lake Victoria and its taxonomic implications. F Witte, KDN Barel, MJP Van Oijen South African Journal of Science 93, 1997 | 35 | 1997 |
| Taxonomical and ecological description of a species complex of zooplanktivorous and insectivorous cichlids from Lake Victoria MJP Van Oijen, F Witte Zoologische Verhandelingen 302 (1), 1-56, 1996 | 35 | 1996 |
| Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania MP De Zeeuw, I Westbroek, MJP Van Oijen, F Witte ZooKeys, 1, 2013 | 23 | 2013 |
| Haplochromis MJP Van Oijen, J Snoeks, PH Skelton, C Maréchal, GG Teugels ISNB Bruxelles, MRAC Tervuren, ORSTOM Paris, 1991 | 20 | 1991 |
| Eels and the Japanese: an inseparable, long-standing relationship M Kuroki, MJP van Oijen, K Tsukamoto Eels and humans, 91-108, 2014 | 19 | 2014 |
| An Introduction To the Taxonomy and Morphology of the Haplochromine Cichlidae From Lake Victoria ELM Witte-Maas, MJP van Oijen, F Witte, CDN Barel Netherlands Journal of Zoology 27 (4), 381-389, 1976 | 19 | 1976 |
| A systematic revision of the piscivorous haplochromine Cichlidae (Pisces: Teleostei) of Lake Victoria (East Africa). Part I MJP Van Oijen Zoologische Verhandelingen 272 (1), 1-95, 1991 | 16 | 1991 |
| On the earliest published species of Rhinogobius. With a redescription of Gobius brunneus Temminck and Schlegel, 1845. MJP van Oijen, T Suzuki, IS Chen 國立臺灣博物館學刊 64 (1), 1-17, 2011 | 15 | 2011 |
| The egg capsule of the coral cat shark, Atelomycterus marmoratus (Bennett, 1830)(Chondrichthyes: Scyliorhinidae) PHF Bor, MJP van Oijen, C Magenta Zoologische Mededelingen 77, 325-330, 2003 | 13 | 2003 |
| Biology of haplochromine trophic groups F Witte Fish Stocks and Fisheries of Lake Victoria, 1995 | 13 | 1995 |
