SciELO - Scientific Electronic Library Online

 
vol.19 número2Limnología básica del lago cárstico turístico Cenote Azul en Quintana Roo, México índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Hidrobiológica

versão impressa ISSN 0188-8897

Resumo

LOPEZ-ORTIZ, B. Estela  e  SANCHEZ, Alberto. Effect of increased salinity in the ovum fertilization of sea urchin Strongylocentrotus franciscanus and Lytechinus anamesus. Hidrobiológica [online]. 2009, vol.19, n.2, pp.181-184. ISSN 0188-8897.

The effects of increased salinity were evaluated on the ovum fertilization of the sea urchin species, Strongylocentrotus franciscanus Agassiz, 1863 and Lytechinus anamesus Clark, 1912, which were collected by means free-diving in the bay Todos Santos, Ensenada, B. C., Mexico. The ovum fertilization of each species of sea urchin was estimated using a range of salinity from 33.4 to 53.4‰, being considered for each case its LC50. The results indicated that the capacity of fertilization of gametes decrease as the salinity increases, reaching the LC50 at 43.4‰ for Strongylocentrotus franciscanus and 48.4‰ for Lytechinus anamesus, confirming previous research that recommended not exceed 40‰ to avoid adverse effects in life cycles of the marine fauna.

Palavras-chave : Strongylocentrotus franciscanus; Lytechinus anamesus; fertilization; sea urchin gametes; LC50.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons