Pomacea maculata.

Abstract P. maculata is a freshwater snail native to a wide geographical area in South America from the Rio de la Plata in Argentina and Uruguay to the Amazon in Brazil. It is commonly confused with any number of similar large apple snails, including the well-known invasive golden apple snail Pomacea canaliculata (listed among '100 of the world's worst invasive species'). Both species have been introduced to South-East and East Asia, although for many years they were not distinguished and the Asian introductions were widely identified as "golden apple snails" and the name P. canaliculata was applied to them. Due to the confusion in species identification, the history of introduction of P. maculata remains somewhat uncertain as does its invasiveness and pest potential. Much of the literature is confounded, for example, the snails illustrated by Cowie (2002) as P. canaliculata are in fact P. maculata. The majority of invasive populations in Asia appear to be P. canaliculata, often not mixed with P. maculata (Hayes et al., 2008; Tran et al., 2008) and the pest potential of P. canaliculata in such cases is clear. However, much less has been written about the invasiveness and pest potential of 'P. maculata'.

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Kepadatan Populasi Keong Mas (Pomacea canaliculata) di Distrik Prafi Kabupaten Manokwari

Jurnal Natural ◽

10.30862/jn.v8i1.337 ◽

2012 ◽

Vol 8 (1) ◽

Author(s):

Alexander Yaku ◽

Mariam Isir ◽

Hayu S. Pribadi

Keyword(s):

Data Collection ◽

Population Density ◽

South America ◽

Freshwater Snail ◽

Rice Seedling ◽

Pomacea Canaliculata ◽

Irrigation Canal ◽

Apple Snail ◽

Golden Apple Snail ◽

Rice Pest

<em>The golden apple snail, (Pomaceae canaliculata Lamarck) is a freshwater snail having been widely distributed thoughout Indonesia since its introduction from South America.  This snail has been a serious rice pest problem in Prafi district because it damages young rice seedling.  The present research was carried out to study the population density of the snail at four different habitats in Prafi district of Manokwari.  The data collection was taken place in the villages of Prafi Mulya, Aimasi, Desay and Udapi Hilir during one month period.  Result of the present research indicated that the population density of the golden apple snail found in the observed four different habitats in Prafi district which were irrigation canal, river, paddy field and pod were  0.38, 8.17, 24.75 and 33.79 ind/m<sup>2</sup>, respectively.</em>

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Golden Snail Opera: The More-than-Human Performance of Friendly Farming on Taiwan’s Lanyang Plain

Cultural Anthropology ◽

10.14506/ca31.4.04 ◽

2016 ◽

Vol 31 (4) ◽

pp. 520-544 ◽

Cited By ~ 4

Author(s):

Yen-Ling Tsai ◽

Isabelle Carbonell ◽

Joelle Chevrier ◽

Anna Lowenhaupt Tsing

Keyword(s):

Natural History ◽

Paddy Field ◽

Human Performance ◽

Pomacea Canaliculata ◽

Apple Snail ◽

Rice Agriculture ◽

Golden Apple Snail ◽

History Of ◽

Major Pest ◽

And Performance

Combining video and performance-oriented text, this genre-bending o-pei-la is a multispecies enactment of experimental natural history. Our players consider the golden treasure snail (金寶螺 kim-pó-lê; Pomacea canaliculata and relatives; golden apple snail), first imported to Taiwan from Argentina in 1979 for an imagined escargot industry, but now a major pest of rice agriculture in Taiwan and across Asia. Whereas farmers in the Green Revolution’s legacy use poison to exterminate snails, a new generation of friendly farmers (友善小農; youshan xiaonong) in Taiwan’s Yilan County hand-pick snails and attempt to learn enough about their lives to insert farming as one among many multispecies life ways within the paddy. Drawing on a variety of knowledge sources, including personal experience, international science, social media, traditional calendars, and local understandings of ghosts and deities, these farmers construct an experimental natural history of both new and old paddy-field denizens. Their experiments self-consciously intersect with the investigations made by other species of the paddy field. Our article offers an ethnography of both kinds of experiments, human and nonhuman. Video and text together show the performative features of cross-species acquaintance. In the process, we contribute to debates about radical alterity, showing how anthropologists can do more than sort for difference: we can identify vernacular patches of practice that mix and juxtapose many ontological alternatives.

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MOLLUSCICIDAL ACTIVITY OF ZINGIBER OFFICINALE AND CARICA PAPAYA ON THE EGG HATCHABILITY OF THE GOLDEN APPLE SNAIL, POMACEA CANALICULATA (GASTROPODA: AMPULIRIIDAE)

Malaysian Journal of Science ◽

10.22452/mjs.vol40no2.4 ◽

2021 ◽

Vol 40 (2) ◽

pp. 40-50

Author(s):

Hasnun Nita Ismail ◽

Nadia Nisha Musa

Keyword(s):

Carica Papaya ◽

Ethanolic Extract ◽

Zingiber Officinale ◽

Freshwater Snail ◽

Pomacea Canaliculata ◽

Apple Snail ◽

Natural Ecosystems ◽

Egg Hatchability ◽

Golden Apple Snail ◽

Molluscicidal Activity

The study was conducted to assess the effect of Zingiber officinale and Carica papaya extract on the egg hatchability of the golden apple snail, Pomacea canaliculata. This is a freshwater snail that is considered a pest in agriculture as well as natural ecosystems. In combating the population of the aforementioned pest, this study evaluates the use of plant extracts such as biomolluscicides to control the production of new hatchlings from the clusters of eggs. The egg clusters were exposed to different concentrations of Z. officinale ethanolic extract and C. papaya methanolic extracts (25 ppm, 50 ppm, 100 ppm) using the direct single spraying method. Observation was made for a maximum of 30 days. The time taken for the eggs to hatch and the number of eggs successfully hatched were measured to reflect the potential of both extracts in affecting egg hatchability. The finding shows that the eggs hatch later when exposed to increasing concentrations (25 to 100 ppm) of Z. officinale extract. The number of eggs successfully hatched was significantly decreased from 86% to 9% after exposure to 25 ppm and above. Meanwhile, the extract of C. papaya did not show any significant effect on both parameters for egg hatchability of P. canaliculata, regardless of the increase in concentration from 25 to 100 ppm. Our findings reveal that the extract of Z. officinale contains higher molluscicidal activity than the extract of C. papaya. Therefore, it has the potential to be commercialized as a biomolluscicide to control the population of golden apple snails specifically at the egg stage.

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The Immune Response of the Invasive Golden Apple Snail to a Nematode-Based Molluscicide Involves Different Organs

Biology ◽

10.3390/biology9110371 ◽

2020 ◽

Vol 9 (11) ◽

pp. 371

Author(s):

Alice Montanari ◽

Giulia Bergamini ◽

Agnese Ferrari ◽

Anita Ferri ◽

Milena Nasi ◽

...

Keyword(s):

Invasive Species ◽

Immune Response ◽

Well Being ◽

Pomacea Canaliculata ◽

Apple Snail ◽

Organ Specific ◽

Golden Apple Snail ◽

The Central Nervous System ◽

Basic And Applied Research

The spreading of alien and invasive species poses new challenges for the ecosystem services, the sustainable production of food, and human well-being. Unveiling and targeting the immune system of invasive species can prove helpful for basic and applied research. Here, we present evidence that a nematode (Phasmarhabditis hermaphrodita)-based molluscicide exerts dose-dependent lethal effects on the golden apple snail, Pomacea canaliculata. When used at 1.7 g/L, this biopesticide kills about 30% of snails within one week and promotes a change in the expression of Pc-bpi, an orthologue of mammalian bactericidal/permeability increasing protein (BPI). Changes in Pc-bpi expression, as monitored by quantitative PCR (qPCR), occurred in two immune-related organs, namely the anterior kidney and the gills, after exposure at 18 and 25 °C, respectively. Histological analyses revealed the presence of the nematode in the snail anterior kidney and the gills at both 18 and 25 °C. The mantle and the central nervous system had a stable Pc-bpi expression and seemed not affected by the nematodes. Fluorescence in situ hybridization (FISH) experiments demonstrated the expression of Pc-bpi in circulating hemocytes, nurturing the possibility that increased Pc-bpi expression in the anterior kidney and gills may be due to the hemocytes patrolling the organs. While suggesting that P. hermaphrodita-based biopesticides enable the sustainable control of P. canaliculata spread, our experiments also unveiled an organ-specific and temperature-dependent response in the snails exposed to the nematodes. Overall, our data indicate that, after exposure to a pathogen, the snail P. canaliculata can mount a complex, multi-organ innate immune response.

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Phylogeographic patterns and demographic history of Pomacea canaliculata and Pomacea maculata from different countries (Ampullariidae, Gastropoda, Mollusca)

Nature Conservation ◽

10.3897/natureconservation.36.35045 ◽

2019 ◽

Vol 36 ◽

pp. 71-92

Author(s):

Xiongjun Liu ◽

Yu Zhou ◽

Shan Ouyang ◽

Xiaoping Wu

Keyword(s):

Genetic Diversity ◽

Invasive Species ◽

Demographic History ◽

Pomacea Canaliculata ◽

High Genetic Diversity ◽

Effective Prevention ◽

Pomacea Maculata ◽

History Of ◽

Coi Sequences ◽

And Control

Invasive species of Pomacea snails are of growing concern when it comes to the conservation of global biodiversity. Pomacea canaliculata has been listed among the world’s 100 worst invasive species. In this work, phylogeographic patterns and the demographic history of P. canaliculata and P. maculata from different countries were analyzed using mtDNA cytochrome c oxidase subunit-I (COI) sequences. The results showed that P. canaliculata and P. maculata had high genetic diversity, significant genetic differentiation, limited gene flow and stable population dynamics among different countries. Genetic diversity of P. canaliculata was higher than P. maculata. Our study will also provide important information for the effective prevention and control of the spread of Pomacea snails.

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Pomacea canaliculata (golden apple snail).

10.1079/cpc.68490.20210104914 ◽

2021 ◽

Author(s):

Rob Cowie ◽

Ravi Joshi ◽

James Litsinger

Keyword(s):

Food Resource ◽

The United States ◽

Freshwater Snail ◽

Pomacea Canaliculata ◽

Aquarium Trade ◽

Natural Ecosystem ◽

South East Asia ◽

Apple Snail ◽

Golden Apple Snail ◽

Bodies Of Water

Abstract P. canaliculata is a freshwater snail native to parts of Argentina and Uruguay. The distribution of P. canaliculata has been steadily increasing since its introduction to Asia, primarily as a human food resource but perhaps also by the aquarium trade, beginning around 1979 or 1980 (Mochida, 1991; Halwart, 1994a; Cowie, 2002; Joshi and Sebastian, 2006). Once introduced to an area, it spreads rapidly through bodies of water such as canals and rivers and during floods. It feeds on aquatic plants and can devastate rice (in South-east Asia), taro (in Hawaii) and other aquatic or semi-aquatic crops. It may out-compete native apple snails (Halwart, 1994a; Warren, 1997), prey on native fauna (Wood et al., 2005, 2006) and alter natural ecosystem function (Carlsson et al. 2004a). It is also an important vector of various parasites including the nematode Angiostrongyulus cantonensis, which causes human eosinophillic meningitis (Lv et al., 2011; Yang et al., 2013).It is listed among '100 of the world's worst invasive species' (Lowe et al., 2000). In the United States its transport between states is restricted (Gaston, 2006), as is its transport between islands in the Hawaiian archipelago (Tamaru et al., 2006). It is listed as a quarantine pest in Malaysia (Yahaya et al., 2006) and in Japan. Australia has strong quarantine restrictions and is particularly concerned about P. canaliculata (Cowie, 2005).

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Comparison of Invasive Apple Snail (Pomacea canaliculata) Behaviors in Different Water Temperature Gradients

Water ◽

10.3390/w13091149 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1149

Author(s):

Mi-Jung Bae ◽

Eui-Jin Kim ◽

Young-Seuk Park

Keyword(s):

Water Temperature ◽

Farming Systems ◽

Freshwater Snail ◽

Freshwater Ecosystems ◽

Pomacea Canaliculata ◽

Activity Levels ◽

Self Organizing Map ◽

Apple Snail ◽

Temperature Changes ◽

Organic Farming Systems

Pomacea canaliculata (known as invasive apple snail) is a freshwater snail native to South America that was introduced into many countries (including Asia and North America) as a food source or for organic farming systems. However, it has invaded freshwater ecosystems and become a serious agricultural pest in paddy fields. Water temperature is an important factor determining behavior and successful establishment in new areas. We examined the behavioral responses of P. canaliculata with water temperature changes from 25 °C to 30 °C, 20 °C, and 15 °C by quantifying changes in nine behaviors. At the acclimated temperature (25 °C), the mobility of P. canaliculata was low during the day, but high at night. Clinging behavior increased as the water temperature decreased from 25 °C to 20 °C or 15 °C. Conversely, ventilation and food consumption increased when the water temperature increased from 25 °C to 30 °C. A self-organizing map (an unsupervised artificial neural network) was used to classify the behavioral patterns into seven clusters at different water temperatures. These results suggest that the activity levels or certain behaviors of P. canaliculata vary with the water temperature conditions. Understanding the thermal biology of P. canaliculata may be crucial for managing this invasive snail.

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