This study reports the present distribution range of Musculium argentinum (D'Orbigny, 1835) and Musculium patagonicum Pilsbry, 1911 in Chile, from sampling data carried out from 2002 to 2006. Morphological and biometric characteristies of the studied populations show that M. argentinum is discont...
Parada Zamorano, Esperanza
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Peredo, Santiago
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Jara Seguel, Pedro
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[Registro actual de especies del genero Musculium Link, 1807 (Bivalvia: Sphaeriidae) en Chile con notas sobre morfologia y biometria de sus poblaciones]
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[Present record of species of Musculium Link, 1807 (Bivalvia: Sphaeriidae) in Chile with notes on its morphology and biometry of its populations]
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Present record of species of Musculium Link, 1807 (Bivalvia: Sphaeriidae) in Chile with notes on its morphology and biometry of its populations
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, Santiago
,
Jara Seguel, Pedro
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Parada Zamorano, Esperanza
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Von Brand, Elisabeth
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[Gonadal organization and gametogenesis in musculium argentinum (Veneroida: Sphaeriidae) from a population in Southern Chile]
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Gonadal organization and gametogenesis in musculium argentinum (Veneroida: Sphaeriidae) from a population in Southern Chile
The pill clams Pisidium chilense (d'Orbigny, 1846) and Pisidium huillichum (Ituarte, 1999) showed a 2C DNA content of 4.04 ± 0.4 pg and 2.35 ± 0.24 pg, respectively. The somatic DNA content of these 2 Chilean Pisidium Pfeiffer 1821 species is within the range described previously for diploid Hete...
Jara Seguel, Pedro
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Parada Zamorano, Esperanza
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Peredo, Santiago
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Palma Rojas, Claudio
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Von Brand, Elisabeth
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[Nuclear dna content in two chilean species of pisidium (Veneroida: Sphaeriidae)]
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Nuclear dna content in two chilean species of pisidium (Veneroida: Sphaeriidae)
To evaluate the capacity for movement of freshwater mussels in sandy and sand-gravel substrates and to test their ability to differentiate among types and qualities of substrates, experiments were carried out in the laboratory and in the field, using Diplodon chilensis from Lake Panguipulli, Chil...
Lara Cárdenas, Gladys
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Parada Zamorano, Esperanza
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[Substrate selection by the freshwater mussel Diplodon chilensis (Gray, 1828): Field and laboratory experiments]
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Substrate selection by the freshwater mussel Diplodon chilensis (Gray, 1828): Field and laboratory experiments