Fijacion primaria y variaciones morfologicas, durante la metamorfosis de algunos bivalvos chilenos

Barichivith, Juan Uribe; Stefoni, Daniel López

doi:10.1590/s0373-55241980000200073

Cited by 6 publications

References 2 publications

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Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Retamales

1996

Fifteenth International Seaweed Symposium

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Mytilus chilensis is an invertebrate that competes for space with the alga Gracilaria chilensis in farmed areas in Chile and, for this reason, is considered a contaminant organism. Mussel beds are considered to playa role in the regeneration of nitrogen and, as a consequence, they could be an important source of ammonium for the algae. In this study, we manipUlated the mussel cover in experimental plots, creating replicated areas with 0%, 30% and 60% coverage. In half of the plots the mussels were killed with a gas torch so their effect would be mechanical, without nutrient regeneration. After 15 days, each plot was planted with 12 G. chilensis bundles (100 g each) per square meter. Ammonium concentrations increased significantly in the waters around the mussel bed in contrast to areas without mussels or dead mussels. Mussel cover had a significant negative effect on the length of the G. chilensis bundles planted in the experimental plots. However, no significant differences were detected between experimental quadrats with live mussels and those with dead mussels during a 5 month period. These results indicate that the mechanical effect of the mussel can, to some extent, be responsible for the decline in G. chilensis abundance in farms where mussel beds have been established.

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Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Retamales

1996

Fifteenth International Seaweed Symposium

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Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Retamales

1996

Hydrobiologia

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Mytilus chilensis is an invertebrate that competes for space with the alga Gracilaria chilensis in farmed areas in Chile and, for this reason, is considered a contaminant organism . Mussel beds are considered to play a role in the regeneration of nitrogen and, as a consequence, they could be an important source of ammonium for the algae . In this study, we manipulated the mussel cover in experimental plots, creating replicated areas with 0%, 30% and 60% coverage. In half of the plots the mussels were killed with a gas torch so their effect would be mechanical, without nutrient regeneration . After 15 days, each plot was planted with 12 G. chilensis bundles (100 g each) per square meter. Ammonium concentrations increased significantly in the waters around the mussel bed in contrast to areas without mussels or dead mussels . Mussel cover had a significant negative effect on the length of the G . chilensis bundles planted in the experimental plots . However, no significant differences were detected between experimental quadrats with live mussels and those with dead mussels during a 5 month period . These results indicate that the mechanical effect of the mussel can, to some extent, be responsible for the decline in G. chilensis abundance in farms where mussel beds have been established .

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Biology and Ecology of Scallop Larvae

Cragg¹

2016

Developments in Aquaculture and Fisheries Science

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Fijacion primaria y variaciones morfologicas, durante la metamorfosis de algunos bivalvos chilenos

Cited by 6 publications

References 2 publications

Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Gracilaria-Mytilus interaction on a commercial algal farm in Chile

Biology and Ecology of Scallop Larvae

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