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Registros recuperados: 4
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Comparative ichthyotoxicity of shallow and deep water sponges of New Caledonia IRD
La Barre, S.C.; Laurent, Dominique; Sammarco, P.W.; Williams, W.T.; Coll, J.C..
A survey of comparative ichthyotoxicity in marine sponges from shallow and deep water in the Southern province of New Caledonia was conducted. Test fish #Gambusia affinis$ (#Vertebrata, Pisces$) were exposed to aqueous macerates of 30 shallow water and 30 deep-water sponges. Mortality counts and behavioural changes were recorded over twelve hours, readings taken on a geometric time scale. The responses exhibited by the fish ranged from rapid mortality and varying level of distress and narcotization, to effects indistinguishable from controls. Sponges were classified into three major toxicity groups : 100 % lethal, toxic (<100 % lethal with deleterious effects) and non-toxic (indistinguishable from controls). There was little or no overlap in species...
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; TOXICITE; TEST; POISSON; BIOTOPE; EAU SUPERFICIELLE; ETUDE COMPARATIVE; EPONGE; EAU PROFONDE; ICHTHYOTOXICITE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31227
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Comparative ichthyotoxicity of shallow and deep water sponges of New Caledonia IRD
La Barre, S.C.; Laurent, Dominique; Sammarco, P.; Williams, W.T.; Coll, J..
We have conducted a survey of toxicity distribution with depth of common marine sponges of the Southern province of New Caledonia. Test fish #Gambusia affinis$ (#Vertebrata, Pisces$) were exposed to aqueous macerates from 30 shallow water and 30 deep water sponges. Mortality counts and relative toxicites as evidenced through gradual behavioural changes were recorded against a geometric time scale. The responses exhibited by the fish ranged from rapid mortality and varying levels of distress or narcotization to effects undistinguishable from controls. Sponges exhibiting similar behavioural patterns (from 8 computer-defined pattens) were classified into 6 toxicity groups falling into 3 broad categories : 100 % lethal, harmful to toxic, and non-toxic. Eighty...
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; EAU SUPERFICIELLE; TOXICITE; TEST; POISSON; ETUDE COMPARATIVE; BIOTOPE; EPONGE; EAU PROFONDE; ICHTHYOTOXICITE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31229
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Couches diffusantes dans le Pacifique équatorial et sub-tropical IRD
Grandperrin, René.
Tipo: Text Palavras-chave: CARACTERISTIQUE PHYSIQUE; DIFFUSION; VARIATION JOURNALIERE; COUCHE DIFFUSANTE; MIGRATION VERTICALE; EAU PROFONDE; ECHO SONDEUR.
Ano: 1969 URL: http://www.documentation.ird.fr/hor/fdi:19553
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Le pH et l'alcalinité des eaux profondes de la fosse des Hébrides et du bassin des Fidji IRD
Rotschi, Henri.
Tipo: Text Palavras-chave: OCEANOGRAPHIE PHYSIQUE; HYDROLOGIE MARINE; PH; OXYGENE DISSOUS; GAZ CARBONIQUE; REPARTITION VERTICALE; MASSE D'EAU; COUCHE EUPHOTIQUE; ALCALINITE; EAU PROFONDE.
Ano: 1965 URL: http://www.documentation.ird.fr/hor/fdi:10588
Registros recuperados: 4
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