Overwintering ability of the apple snail, Pomacea canaliculata.

Kiyota, Hirotsugu; Okuhara, Kunihide

doi:10.4241/kyubyochu.33.102

Cited by 8 publications

(5 citation statements)

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“…Before the winter, P. canaliculata was mainly distributed in the shallow water (Masuda, 1987;Ichinose et al, 2000), and sometimes breathed directly from the air using a siphon. In the winter season, however, most of the snails closed the operculum and sank to the bottom of the water (Kiyota and Okuhara, 1987;Estebenet and Cazzaniga, 1992). At low temperatures under 17.5°C, over 50% of the snails began to stop moving, and under 10°C, snails began to withdraw into their shells (Sugiura and Wada, 1999).…”

Section: Discussionmentioning

confidence: 99%

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Environmental factors influencing overwintering success of the golden apple snail, Pomacea canaliculata (Gastropoda: Ampullariidae), in the northernmost population of Japan.

Ito

2002

Appl. Entomol. Zool.

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The effect of environmental factors on the overwintering success of Pomacea canaliculata in the northernmost population of Japan was examined to determine the location of overwintering habitats in the agricultural water system. The snail overwintered only in a portion of the water canals, and did not overwinter in dried paddy fields. In the canal, the density of the snail was not necessarily high at the overwintering site before winter. Overwintering success in the water canal was not explained by temperature and water velocity, but by pH, dissolved oxygen (DO) and depth of water among the sampling sites. To determine the location of a proper overwintering site, it is important to investigate various habitats including places where the snail density is low, and measure various environmental variables including pH, DO, and depth of water.

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Section: Discussionmentioning

confidence: 99%

“…Previous studies show that P. canaliculata can overwinter in various habitats (Kiyota and Okuhara, 1987;Ozawa and Makino, 1988). In dried paddies, low temperature in winter causes high mortalities depending on shell height (Ozawa and Makino, 1988;Hirota and Ohki, 1989;Kondo and Tanaka, 1991;Syobu et al, 2001).…”

Section: Introductionmentioning

confidence: 97%

Environmental factors influencing overwintering success of the golden apple snail, Pomacea canaliculata (Gastropoda: Ampullariidae), in the northernmost population of Japan.

Ito

2002

Appl. Entomol. Zool.

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“…To date, however, the population dynamics of P. canaliculata has been little studied in natural and agricultural habitats, although there have been relevant reports on some aspects of their population dynamics, e.g., density in a paddy ), frequency distribution of shell size in paddies Shobu 1996), oviposition and hatchability Estebenet and Cazzaniga 1993;Albrecht et al 1996), and survival during an overwintering period (Kiyota and Okuhara 1987;Oya et al 1987;Ozawa and Makino 1988;Yano and Nakatani 1989). To manage the P. canaliculata populations in paddies, we should determine their population dynamics, particularly the densitydependent processes.…”

Section: Introductionmentioning

confidence: 96%

Density‐dependent growth and reproduction of the apple snail, Pomacea canaliculata: a density manipulation experiment in a paddy field

et al. 1999

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To examine density dependence in the survival, growth, and reproduction of Pomacea canaliculata, we conducted an experiment in which snail densities were manipulated in a paddy field. We released paint-marked snails of 15-20 mm shell height into 12 enclosures (pens) of 16 m 2 at one of five densities -8, 16, 32, 64, or 128 snails per pen. The survival rate of released snails was 95% and was independent of snail density. The snail density had a significant effect on the growth and egg production of individual snails. This density dependence may have been caused by reduced food availability. The females at high density deposited fewer and smaller egg masses than those at low density, and consequently produced fewer eggs. The females at densities 8 and 16 deposited more than 3000 eggs per female, while the females at density 128 oviposited only 414 eggs. The total egg production per pen was, however, higher at higher snail density. The survival rates of juvenile snails were 21%-37% and were independent of adult density. The juvenile density was positively correlated with the total egg production per pen and hence was higher at higher adult density. However, the density of juveniles larger than 5 mm in shell height, i.e., juveniles that can survive an overwintering period, was not significantly different among density treatments. These results suggest that snail density after the overwintering period is independent of the density in the previous year. Thus, density dependence in growth and reproduction might regulate the population of P. canaliculata in paddies.

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“…Higher RE is expected in semelparous (reproduce only once throughout life) organisms than iteroparous ones (reproduce more than once), since semelparous organisms should use all their resources for reproduction if death will definitely occur just after reproduction (Roff, 1992;in snails, Browne and Russell-Hunter, 1978;Calow, 1978). Apple snails in Japanese paddy fields are probably semelparous because adult snails over 30 mm generally do not survive during winter (Kiyota and Okuhara, 1987;Oya et al, 1987). Interestingly, weight-specific RE in this study (0.015-0.022) appears to be higher than that of Argentinean conspecifics (0.007 in Estebenet and Cazzaniga, 1993;0.007-0.017 in Albrecht et al, 1999; after converting into a daily basis).…”

Section: Effects Of Food Availability On Female Rementioning

confidence: 47%

Effects of food availability and age on the reproductive effort of the apple snail, Pomacea canaliculata (Lamarck)(Gastropoda: Ampullariidae).

Estoy

Yusa

Wada

et al. 2002

Appl. Entomol. Zool.

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The effects of food availability and age on the reproductive traits of Pomacea canaliculata were determined in snails fed at three food levels under laboratory conditions (14L:10D; 25°C). In males, copulation frequency tended to increase with age, while food availability did not affect copulation frequency. In females, spawn production was lower in food-limited conditions, but current or weight-specific reproductive effort (RE) did not differ among food levels. The weight-specific RE and spawn frequency of the well-fed females decreased with age, but their current RE increased with age.

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Overwintering ability of the apple snail, Pomacea canaliculata.

Cited by 8 publications

References 0 publications

Environmental factors influencing overwintering success of the golden apple snail, Pomacea canaliculata (Gastropoda: Ampullariidae), in the northernmost population of Japan.

Environmental factors influencing overwintering success of the golden apple snail, Pomacea canaliculata (Gastropoda: Ampullariidae), in the northernmost population of Japan.

Density‐dependent growth and reproduction of the apple snail, Pomacea canaliculata: a density manipulation experiment in a paddy field

Effects of food availability and age on the reproductive effort of the apple snail, Pomacea canaliculata (Lamarck)(Gastropoda: Ampullariidae).

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