Lebistes reticulatus

Biota biological t,/2 30 d in guppy Lebistes reticulatus (Landner et al. 1977) ... 

Reinert, R.E. (1967) The accumulation of deldrin in an algal (Scenedesmus obliquus), daphnia (Daphnia magnet), guppy (Lebistes reticulatus) food chain. Diss. Abstr. 28, 2210-B. 

There are many cases of ovoviviparity, but only a few vertebrate cases will be used here to illustrate the syndrome. The gnppy Lebistes reticulatus) is a small, freshwater fish that is native to the West Indies and northern Sonth America, and is commonly kept as a pet in aquaria. The guppy is internally fertilized, and the eggs are retained in the oviduct of the female where they hatch and develop, so that live young are bom. 

Of the other older dialkyl-aryl phosphorothionates, fenthion is still widely used. Fenthion has a better residual efficiency than parathion and methyl parathion and is probably less toxic to fish — 0.01 mg/1 at 24 hours exposure results in 100% mortality in mosquitoes (Aedes aegypti), whereas 1 mg/1 does not kill any guppy (Lebistes reticulatus) during 48 hours exposure. 

LDA/TfCl, 448 Lebistes reticulatus, 223 leukemia L1210 tumor cells, 38 Lewis-acid catalyzed acetalization, 342 LiAlH4, 282 LiBr, 147, 153 Lindlar catalyst, 219, 226 Lingrin oxidation, 432 LiOH, K9CO3, 21 lithiation 182, 422 2-lithio-5-bromothiazole, 427 2-lithiothiazole, 427, 428, 429, 430... 

Stolk, A, 1950, The ovarian occlusion apparatus in the viviparous cyprino-donts Lebistes reticulatus (Peters) and Xiphophorus helleri (Heckel), Proc. K. Ned. Akad. Wet., 53 526. 

The toxicity of coumarins to fish was first noted by Spath [575]. Forty cou-marins were tested on the fresh water fish Guppyi (Lebistes reticulatus) and one of the most toxic compounds was alloimperatorin (114) and its methyl ether (115). Coumarin, 3-chlorocoumarin and angelicin have been shown to possess great narcotic action on fish. The effect was significantly increased with the presence of an alkyl group in the molecule on the other hand, phenyl substituents brought about a reduction [9]. 

Fish toxicity LCq for Lebistes reticulatus 10 mg/litre (exposure 10 days) Tolerated concentration by activated sludge organisms 150 mg/litre. 

Crandall, C. A., and C. J. Goodnight. 1962. Effects of Sublethal Concentrations of Several Toxicants on the Growth of the Common Guppy, Lebistes reticulatus, Limnology and Oceanography, vol. 7, pp. 233-239. 

Determination of LD50 values in guppies Lebistes reticulatus) and toad Bufo valliceps) tadpoles... 

Figure 105. Time-course uptake of [ Hg]-PMA by guppies Lebistes reticulatus) from water containing various concentrations of PMA each point is the mean 1 S.E. of results from four guppies. From Fang (1973).

From the methanolic extract of sun-dried specimens of the sponge Petrosia seriata Braekman et al. 194) isolated a novel type of bis-quinolizidine alkaloid, the ichthyotoxic petrosin (312), and determined its structure by X-ray diffraction. 312, which contains a C-16 macrocycle, was toxic to the fish Lebistes reticulatus (LD = 50mg/L). Later,... 

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