PERSONAL DE APOYO
CATALDO Daniel Hugo
artículos
Título:
Effects of conspecifics on settling juveniles of the invasive golden mussel, Limnoperna fortunei
Autor/es:
PAULA SARDINIA DANIEL H. CATALDO AND DEMETRIO BOLTOVSKOY
Revista:
AQUATIC SCIENCES
Editorial:
Springer
Referencias:
Lugar: Birkha¨user Verlag, Basel/Switzerland; Año: 2009 p. 1 - 12
ISSN:
1015-1621
Resumen:
We conducted a field experiment to assess the
influence of conspecific adults on recruitment success of the
golden mussel Limnoperna fortunei. Tiles, 225 cm2 surface
area, were used as artificial substrates in four treatments:
control (blank tiles), low (800 mussels m-2), medium
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
area, were used as artificial substrates in four treatments:
control (blank tiles), low (800 mussels m-2), medium
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
Limnoperna fortunei. Tiles, 225 cm2 surface
area, were used as artificial substrates in four treatments:
control (blank tiles), low (800 mussels m-2), medium
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
-2), medium
(4,000 mussels m-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.
-2) and high (12,000 mussels m-2) density
treatments. Results indicated that recruitment was
strongly affected by the presence and density of conspecifics.
After one and 3 months of exposure, numbers of
recruits were significantly higher on tiles with conspecific
adults than on blank tiles, and there was a positive and
significant relationship between the number of recruits and
the number of adults in the three treatments assayed. Also,
after 3 months of exposure, recruits in all treatments with
adults present were larger than recruits in the control
treatment. Our results suggest that conspecific adults have a
positive effect on recruitment success and growth of newly
settled juveniles through factors that enhance larval settling
or that contribute to the survival of settlers in areas
colonized by adult conspecifics.