Guyana |
| 1989 |
First expedition to collect Rivulus in the former British Guyana together with Melville van Lange -1989.php PDF (click right to choose: open in new window) |
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| 1991 |
Second expedition to collect Rivulus in Guyana together with my wife Marjan and Wim and Yvonne Suijker -1991.php (in prep.) |
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| 1992 |
Data records on Third expedition to collect Rivulus in Guyana with my wife Marjan with collecting data of Rivulus torrenticola and other Rivulus species on the Guyana plateau-1992.php (click to choose) |
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| 1994 |
Fourth expedition to collect Rivulus in Guyana -1994.php (in prep.) |
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| 1997 |
Fifth expedition to collect Rivulus in Guayna -1997.php (in prep.) |
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| 2006 |
Sixth expedition to collect Rivulus in Guayna with Bernd Scholzel, Michael Schluter and Siegmund Sladkowsky -2006.php (in prep.) |
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Surinam |
| 2000 |
From Aruba with a Cessna 206 plane and accompanied by Siegmund Sladkovski from Germany and 3 pilots on a 12 day expedition, penetrating in the remote interior of Surinam to find more Rivulus -2000.php (in prep.) |
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| 2003 |
Second expedition to the interior of Surinam together with my wife Marjan-2003.php (in prep.) |
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Venezuela |
| 2004 |
Short fakt finding mission to the Andes - and Llanos in North Venezuela. -2004.php (in prep.) |
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| 2005 |
Short fakt finding mission to the Llanos in North Venezuela to find the habitats of Venezuelian annuals such as Gnatholebias, Terranatos and Rachovia -2005.php (in prep.) |
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| 2009 |
Short collecting trip with Siegmund Sladlowski to the middle and south of Venezuela. (in prep.) |
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| 2010 |
Collecting trip (20 days) with Joachim Tomas and Olivier Helker from Germany to the Amazonas Territories in the south-west of Venezuela and to the Gran Sabana area in the south-east along the border of Guyana. (in prep.) |
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Colombia |
| 2006 |
Expedition to find the mysterious "Cyprinodon" martae, Steindachner 1875 in the northern region of Colombia with notes on the habitats of Austrofundulus and Rachovia in La Guajira and Magdalena-2006.php (in prep.) |
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| 2008 |
Expedition of 21 days to find in a second attempt the mysterious "Cyprinodon" martae, Steindachner 1875 in the northern region of Colombia and the terra tipica of many described Rivuline species of which the rediscovery is necessary for a better understanding of their position and of coarse also to discover Rivulid fishes new to science-2008.php (in prep.) |
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| 2009 |
Third attempt to recollect "Cyprinodon" martae and recollect Rachovia splendens from its terra typica. This time 10 days at the end of June 2009 also with Francisco Correa. (in prep.) |
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Argentina |
| 2008 |
One week Argentinean expedition to find Austrolebias-, Ptrerolebias-, Trigonectes-, Papilliolebias- and Neofundulus members in the Rio Bermeja- and Rio Paraguay/ Parana area in the northern states Tucuman, Salta, Formosa, Chaco, Misiones and Corrientes while driving 6000 km tru mainly dry area's accompanied by Roberto Petracini and Jorge Stojan. (in prep.) |
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