Embryo and larval development of the yellow clam Mesodesma mactroides (Reeve, 1854) (Mesodesmatidae) in laboratory
Document title: Embryo and larval development of the yellow clam Mesodesma mactroides (Reeve, 1854) (Mesodesmatidae) in laboratory
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000436169
ISSN: 0001-3765
Authors: 1
2
3
2
2
1
Institutions: 1Universidade Federal do Rio Grande, Laboratorio de Imunologia e Patologia de Organismos Aquaticos, Rio Grande, Rio Grande do Sul. Brasil
2Universidade Federal de Santa Catarina, Laboratorio de Moluscos Marinhos, Florianopolis, Santa Catarina. Brasil
3Universidade Federal do Rio Grande, Laboratorio de Bioquimica Funcional de Organismos Aquaticos, Rio Grande, Rio Grande do Sul. Brasil
Year:
Volumen: 92
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract The yellow clam Mesodesma mactroides (Reeve, 1854) is a sand mollusc with historical and socioeconomic importance in Brazil, Uruguay and Argentina. A guaranteed form to access a successful reestablishment of the species in their natural environment is directly linked to their reproduction biology. Then, our report introduces the embryonic and larval development of the yellow clam reared in laboratory for such purposes. M. mactroides broodstock were selected as specimens who possess a mean total shell length and weight of 66 ± 3.82 mm and 27.15 ± 4.07 g for an afterwards spawn induction through stripping technique. Regarding the embryonic development, newly fertilized oocytes exhibited a mean diameter of 51.20 ± 6.64 μm. The first polar corpuscle, trochophores and D-veliger appeared at 20 min, 18 and 24 h after fertilization, respectively. Umbonate and pediveliger larvae were noticed on the 8th and 25th day, respectively, with complete metamorphosis occurring only at the 27th day, when all larvae were retained in a 200 μm nylon mesh. Therefore, with that basic understanding of the embryonic and larval development of M. mactroides in the laboratory, forwards studies will focus in establish a technological package for this species
Disciplines: Biología
Keyword: Moluscos,
Reproducción y desarrollo,
Almejas,
Biología reproductiva,
Desarrollo larvario,
Mesodesma mactroides,
Mesodesmatidae
Keyword: Molluscs,
Reproduction and development,
Clams,
Reproductive biology,
Larval development,
Mesodesma mactroides,
Mesodesmatidae
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