INVESTIGADORES
BIGATTI Gregorio
congresos y reuniones científicas
Título:
Reproductive cycle and oviposition events of Odontocymbiola magellanica (Gmelin, 1791) (Caenogastropoda: Volutidae) in Golfo Nuevo, Patagonia (Argentina).
Autor/es:
GREGORIO BIGATTI & PABLO E. PENCHASZADEH
Lugar:
Sanibel, Florida, USA
Reunión:
Congreso; American Malacological Society; 2004
Resumen:
The voluiitl snail Odontocymbiola magellanica is distributed from off Rio de la Plata
(35" S) to Chiloe Island in Southern Chile. In Atlantic waters, Odontocymbiola magelanica is part of
the Zygochlamys patagonica com~nunity in depths behveen 100-1 10 m off the
Province of Buenos Aires and inhabils shallow waters (5 to LO nieters depths) in the
Patagonia~l~it iaral. Spawning sampling was perfonned from September 2000 lo
Decer-nber :2.00:J by SCUBA diving at the locality of Playa Parana-Punts Loola.
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer.
Province of Buenos Aires and inhabils shallow waters (5 to LO nieters depths) in the
Patagonia~l~it iaral. Spawning sampling was perfonned from September 2000 lo
Decer-nber :2.00:J by SCUBA diving at the locality of Playa Parana-Punts Loola.
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer.
the Zygochlamys patagonica com~nunity in depths behveen 100-1 10 m off the
Province of Buenos Aires and inhabils shallow waters (5 to LO nieters depths) in the
Patagonia~l~it iaral. Spawning sampling was perfonned from September 2000 lo
Decer-nber :2.00:J by SCUBA diving at the locality of Playa Parana-Punts Loola.
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer.
Province of Buenos Aires and inhabils shallow waters (5 to LO nieters depths) in the
Patagonia~l~it iaral. Spawning sampling was perfonned from September 2000 lo
Decer-nber :2.00:J by SCUBA diving at the locality of Playa Parana-Punts Loola.
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer. Egg capsules in different stages of
emb~.yonidce velopment were found from May to March. Odontocymbiola magellanica
Females spawll white, spherical, calcareous egg capsules attached to sniall rocks and
hard flat si~rfaces. Spawn occurs from July to November, showing two peaks of
oviposition, in coincidence with an increase in water temperature after the winter and
with llie n~aximum water temperature in summer.
