INVESTIGADORES
ZABALA Maria Soledad
artículos
Título:
Early development of the limpet Siphonaria lessonii Blainville, 1827 in populations affected by different physical stressors
Autor/es:
ZABALA, SOLEDAD; AVERBUJ, ANDRÉS; PENCHASZADEH, PABLO E.; BIGATTI, GREGORIO
Revista:
MARINE BIOLOGY RESEARCH
Editorial:
TAYLOR & FRANCIS AS
Referencias:
Año: 2017 p. 1 - 10
ISSN:
1745-1000
Resumen:
The limpet Siphonaria lessonii is very common along Atlantic Patagonian intertidal rocky shores.We studied the early intracapsular embryonic development of this limpet in detail in twopopulations in north Patagonia, with different environmental conditions (i.e. wave exposure,wind, temperature). Early development in both populations was achieved at controlled andequal conditions (13°C). The spawn consisted of a series of enchained egg capsulesembedded in a jelly mass. The development from egg to hatching veliger took 9?11 days inembryos from both populations. The developmental process at both sites was identical,differing only in the embryos? sizes at each stage. Larger adult individuals producing largerembryos were registered at the sheltered site. The differences in sizes of adult and embryosof S. lessonii could be attributed to distinct environmental stressful conditions between sites.