出版物
Type: Publications
Africa
Year: 1972
Les eaux intérieures de l'Afrique jouent un rôle de plus en plus important dans l'approvisionnement en protéines animales d'un continent qui manque traditionnellement de ces produits essentiels. L'accroissement de la demande, l'introduction de nouvelles techniques de pêche et, par dessus [...]
Type: Publications
Europe
Year: 1972
Sensitivity of fish to low concentrations of dissolved oxygen (DO) differs between species, between the various life stages (eggs, larvae, and adults), and between the different life processes (reading, growth, and reproduction, which in turn may depend on swimming ability, [...]
Type: Publications
Europe
Year: 1972
La sensibilite des poisoons aux faibles teneurs en oxyqgno dissou, (OD) differe d'une espace a l'autre, d'un stade du cycle biologique ä l'autre (oeufs, larvec et adultes), ainsi que d'un processun biologique A l'apre (alimentation, croissance ot reproduction, qui peuvent [...]
Type: Publications
Europe
Year: 1972
Chlorine as hypochlorous acid and chloramines is toxic to aquatic life. Coarse fish species, invertebrate organisms and plants are generally more resistant to chlorine than salmonids, although the prodotion of young Daphnia is reduced at a concentration of 0.0035 mg/1 [...]
Type: Publications
Europe
Year: 1972
Growing number of sport fishermen. The economic and social importance of this sport in Europe, and the various measures for its management in the different countries. Water pollution and stock assessment problems, and EIFAC's part in efforts towards resolving these [...]
Type: Publications
Europe
Year: 1972
Report and conclusions of an international meeting of experts in electrical fishing held in Giźicko (Poland). Five fishing machines, four of which were portable, producing different currents and using several fishing techniques, were tested to determine their efficiencies, and also [...]
Type: Publications
Africa
Year: 1972
OPENING OF THE SESSION
ADOPTION OF THE AGENDA
ELECTION OF OFFICERS FOR THE SESSION
ADOPTION OF THE RULES OF PROCEDURE
SYMPOSIUM ON THE EVALUATION OF FISHERY RESOURCES IN THE DEVELOPMENT AND MANAGEMENT OF INLAND FISHERIES
SELECTION OF AREAS OF WORK
ANY OTHER MATTERS
ELECTION OF OFFICERS
DATE AND [...]
Type: Publications
Africa
Year: 1972
OUVERTURE DE LA SESSION
ADOPTION DE L'ORDRE DU JOUR
ELECTION DU BUREAU POUR LA SESSION
ADOPTION DU REGLEMENT INTERIEUR
SYMPOSIUM SUR L'EVALUATION DES RESSOURCES DES PECHES DANS LE DEVELOPPEMENT ET L'AMENAGEMENT DES PECHES CONTINENTALES
SELECTION DES DOMAINES D'ACTIVITE
AUTRES QUESTIONS
ELECTION DU BUREAU
DATE ET LIEU DE LA [...]
Type: Publications
Africa
Year: 1972
As part of the Kainji Lake Research Project being carried out by the Government of Nigeria with the assistance of the United Nations Development Programme and the Food and Agriculture Organization of the United Nations, the pelagic primary production in [...]
Type: Publications
Africa
Year: 1972
The inland waters of Africa play an increasingly important role in the provision of animal protein in a continent which is traditionally poor in this essential commodity. The expansion of demand, the introduction of new fishing techniques and above all [...]