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The gonadal organization and cytological characteristics of gametogenesis in a population of the freshwater clam Musculium argentinum (d'Orbigny, 1835) are described. Sections of the rather small gonad demonstrate the existence of hermaphroditic specimens, and is composed of hermaphrodite follicl...


Peredo, SantiagoJara-Seguel, PedroParada Zamorano, EsperanzaVon Brand, Elisabeth[GONADAL ORGANIZATION AND GAMETOGENESIS IN MUSCULIUM ARGENTINUM (VENEROIDA: SPHAERIIDAE) FROM A POPULATION IN SOUTHERN CHILE]GONADAL ORGANIZATION AND GAMETOGENESIS IN MUSCULIUM ARGENTINUM (VENEROIDA: SPHAERIIDAE) FROM A POPULATION IN SOUTHERN CHILE

Sphaerids have adopted a variety of life strategies that have allowed them to show a cosmopolitan distribution. Among these strategies, those related to reproduction, such as sexuality (hermaphroditism), offspring incubation, fertility, number of generations per year, times an individual reproduc...


Jara-Seguel, PedroPeredo, SantiagoVon Brand, ElisabethParada Zamorano, Esperanza[SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF TWO POPULATIONS OF MUSCULIUM ARGENTINUM (D'ORBIGNY, 1835) (BIVALVIA: SPHAERIIDAE) FROM SOUTHERN CHILE]SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF TWO POPULATIONS OF MUSCULIUM ARGENTINUM (D'ORBIGNY, 1835) (BIVALVIA: SPHAERIIDAE) FROM SOUTHERN CHILE

The family Sphaeriidae is a group of cosmopolitan freshwater clams that inhabit temporary and permanent fluvial and lacustrine environments around the world. In Chile, Sphaeriidae is represented by 11 species belonging to the genera Musculium, Pisidium and Sphaerium. In this study, the nuclear DN...


Jara Seguel, PedroParada Zamorano, EsperanzaPeredo, SantiagoPalma Rojas, Claudiovon Brand, Elisabeth[Nuclear DNA content in two Sphaeriidae species from Southern Chile (Bivalvia: Veneroida)]Nuclear DNA content in two Sphaeriidae species from Southern Chile (Bivalvia: Veneroida)

The empirical evidence obtained by farmers of Huechelepon area (commune of Melipeuco, La Araucania, Chile) indicates that the specie Dasyphyllum diacanthoides, besides presenting medicinal properties, is a winter forage alternative. This property along with its status as endemic forests of Chile ...


Peredo, Santiago F.Parada Zamorano, EsperanzaAlvarez, RicardoBarrera, Claudia[Cutting vegetative propagation of Dasyphyllum diacanthoides, with endogenous resources. An agroecological approach]Cutting vegetative propagation of Dasyphyllum diacanthoides, with endogenous resources. An agroecological approach

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