Titlebook: Reproductive Biology of South American Vertebrates; William C. Hamlett Book 1992 Springer-Verlag New York, Inc. 1992 animals.biology.devel

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藥物

Dealing

嚴(yán)厲譴責(zé)

Adrenal-Glands

rectum

Modes of Reproduction in the Elasmobranchs of Brazilies, 20% are of considerable use, and 7% represent major fisheries species (Compagno 1984). The approximately 470 species of batoids include the sawfishes, guitarfishes, skates, stingrays, and electric rays.

NAG

Mawkish

Modes of Reproduction in the Elasmobranchs of Brazilrackish to fresh water estuaries, lagoons, and bays. Some sharks and stingrays, including the bull shark, ., certain sawfish (Pristidae), potamotrygonid stingrays, and dasyatid stingrays, can inhabit purely freshwater rivers and lakes. The elasmobranch fauna of Brazil is rich and diverse and is of i

Promotion

Serum Steroid Hormones During Reproduction in Elasmobranchsout 800 living species, they are highly adapted and, because of their size, numbers, and ecological role, may be considered a biologically successful group. Much of that success can be traced to the particular reproductive strategies evolved by the elasmobranch over the past 350,000,000 years. Accor

魅力

Larval Ecology of Fish of the Orinoco Basinted in Colombia and Venezuela (Fig. 3.1). Its average discharge is estimated as 36,000 m./s (4–6 to 60.000 m./s). The main channel width varies from several meters in headwaters to 1,000 to 1,500 m in the middle to more or less 20 km at the mouth or delta. This distance is only exceeded by the Zaire