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Ketherlamls 



EXECUTIVE officer: Dr. K. F. Vaas, Directeur. 



YEAR FOUNDED: 1959. 



SCOPE OF activities: Restricted research on the biol- 

 ogy of estuaries resulting from the construction of 

 new dikes. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Estuaries of the 

 Rhine, Meuse, Eastern and Western Scheldt; sandy 

 and silty beaches, and brackish, shallow bays. 



PROVISIONS FOR VISITING SCIENTISTS: Research and 

 living space for 2 visitors; no fees charged. 



MAJOR RESEARCH FACILITIES: Small library; running 

 sea and fresh-water, small aquarium tanks ; small re- 

 search collection of local fauna and flora; small boats 

 and outboard motors. 



SIZE OF staff: Five at professional level ; 5 technicians. 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 

 STUDIES: 



Polychaeta: Nereis J/rers/color 



Crustacea: Orchestht cavimcina, O. gamarelht, Gam- 



marus lociista, Sphcieroma rugicaiidci 

 Moliusca: Limapontia depreisa 

 Phaeophyceae: Fuctis vesicidosus, F. serratt/s 

 Chlorophyceae: Codium jragile 

 Rliodophyceae: Ceram'ium riihrum 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Hydrography of local estuarine waters (J. M. Hoek- 



man) 

 Littoral fauna (C. den Hartog) 

 Plant sociology of mud flats (W. G. Beeftink) 

 Plankton (C. Bakker) 

 Fish fauna (K. F. Vaas) 



Laboratorium Voor de Bestr'tjding Van 

 Scheepsaangroe'i 



LABORATORY FOR ANTI-FOULING RESEARCH 



POSTAL ADDRESS: Buitenhaven 27, Den Helder, Neder- 

 land (Netherlands). 



EXECUTIVE OFFICER: P. de Wolf, Wetenschappelijk 

 Onderzoek. 



SPONSORING AGENCY: Tocgepast Natuurwetenschap- 

 pelijk Onderzoek (Organization for Applied Re- 

 search ) . 



YEAR FOUNDED: 1958. 



SCOPE OF ACTIVITIES: Restricted anti-fouling research. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: North Sea, 

 Wadden Zee. 



MAJOR RESEARCH FACILITIES: Small library; running 

 sea water, small aquarium tanks; skilled shop work- 

 man available; small boats and outboard motors. 



SIZE OF STAFF: Two at professional level; 4 technicians. 



LABORATORIUM VOOR DE BESTRIJDING VAN 

 SCHEEPSAANGROEI, DEN HELDER 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 

 STUDIES: 



Cirripedia: Balaniis hjLuioides, EUn'innis modeili/s. 

 Baliti/us crenatiis 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Culture of barnacles (P. de Wolf) 



Toxicity experiments on barnacles (P. de Wolf) 



Paint testing (A. M. van Londen) 



Nederlands Institunt voor Onderzoek der Zee 



NETHERLANDS INSTITUTE OF SEA RESEARCH 



POSTAL address: Buitenhaven 27, Den Helder, Neder- 

 land (Netherlands). 



EXECUTIVE OFFICER: Dr. J. Verwey, Directeur. 



SPONSORING agency: Ministerie van Ondcrwijs, Kun- 

 sten en Wetenschappen (Ministry of Education, Arts 

 and Sciences) ; administered by Nederlandse Dierkun- 

 dige Vereniging (Netherlands Zoological Society). 



YEAR founded: 1876. 



SCOPE of activities: Unrestricted research on ecology, 

 and hydrography; graduate and undergraduate instruc- 

 tion. 



SEASON OF operation: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Marsdiep Chan- 

 nel, North Sea, and Wadden Zee; sandy and silty 

 beaches, estuarine conditions, and brackish, shallow 

 bays. 



PROVISIONS FOR VISITING SCIENTISTS: Research and 

 living space for visitors; no fees charged for research 

 space. 



MAJOR RESEARCH AND TEACHING FACILITIES: Exten- 

 sive library; running sea water, large tanks, small 

 aquarium tanks; identified reference collection of 

 marine algae and fauna from the southern North 

 Sea; machine and wood shop, skilled shop workman 



