Acute physiological responses of the freshwater snail Elimia flava (Mollusca: Pleuroceridae) to environmental pH and calcium

Ewald, Mary Lou; Feminella, Jack W.; Lenertz, Kristin K.; Henry, Raymond P.

doi:10.1016/j.cbpc.2009.05.001

Cited by 8 publications

(8 citation statements)

References 55 publications

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“…The apple snail Pomacea can survive in a pH range from 4 to 10 without significantly mortality ( Bianchini et al, 2022 ); however, values below six cause problems in the shell, fissures, decalcification, anorexia, reproductive problems and decreases in growth, while values higher than 10 also produce negatively affect the organism ( Byers et al, 2013 ), for example, in Planorbella trivolvis , with low pH and low calcium concentration, snails had lower growth rates and reduced fecundity ( Hunter, 1990 ), in this sense a higher concentration of calcium in water can promote a better growing in snails and hardest shells ( Greenaway, 1971 ; Ewald et al, 2009 ).…”

Section: Discussionmentioning

confidence: 99%

Growth and shell hardness of the apple snail Pomacea flagellata Say, 1829, reared at three calcium concentrations

Jesús‐Navarrete

Sanchez

Ortiz-hernández

2023

PeerJ

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The snail Pomacea flagellata inhabits aquatic systems with high calcium concentration and it is important to food webs; unfortunately, its natural populations are decreasing due to overfishing and habitat destruction. Here we tested the effect of three water calcium concentrations on the growth and hardness of snail shells in triplicate recirculation culture systems for 12 weeks. In each culture, 100 juvenile snails were seeded at constant density and fed with balanced tilapia feed. Thirty snails were randomly collected every 15 days and measured in length and total weight. The size, weight, and shell hardness of the snails for the 500 mg/L calcium treatment were significantly higher than the mean size of the snails in the other treatments (300 mg/L and 243.33 mg/L). The calcium supply in the culture promotes growth and allows the snails to produce healthier and stronger shells, in addition to improving their growth rate, which is important for the management of the species.

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Section: Discussionmentioning

confidence: 99%

Growth and shell hardness of the apple snail Pomacea flagellata Say, 1829, reared at three calcium concentrations

Jesús‐Navarrete

Sanchez

Ortiz-hernández

2023

PeerJ

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“…This might be as a result of the acidification of the heamolymph. Ewald et al. (2009) reported that Elimia flava subjected to a pH condition of 4.0 were inactive, experienced more dramatic ionic disturbances and reduced haemolymph than snails subjected to higher pH conditions of 5, 6, and 7.…”

Section: Discussionmentioning

confidence: 99%

Schistosomiasis prevention option: toxicological evaluation of Vernonia amygdalina on the tissues of Bulinus truncatus at different pH conditions

Eze

Okafor

Nwankwo

et al. 2020

Heliyon

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Research into, and the use of plant products in the control of vectors of pathogens is being revived and seriously considered as an alternative or complete replacement for the classical synthetic agents. The study was designed to investigate toxicological assessment of the aqueous leaf extract of Vernonia amygdalina on mortality and tissue level damages of the freshwater snail Bulinus truncatus at different pH levels. The effects of the extract on total protein concentration and activities of acetylcholinesterase, acid phosphatase and alkaline phosphatase in the tissues of the snail were assayed using standard methods. Compared to the control (snail group not treated with the extract of V. amygdalina ), there were significant (p < 0.05) reductions in the total protein concentrations and acetylcholinesterase activity in the snails' tissues of the treated groups (0.20 mg/L, 0.40 mg/L and 1.00 mg/L) at all the pH conditions (3.5, 7.0 and 10.5). The reverse of this trend followed in the case of acid and alkaline phosphatases’ activities. The study provides a substantial possibility of exploiting local indigenous plant resources such as V. amygdalina for control of freshwater snails and monitor water pollution. The study also raised a possibility of the locals living around freshwater bodies prone to trematode borne diseases to reflexively control freshwater snail population by just squeeze-washing their V. amygdalina around the river banks.

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“…salinity and/or desiccation) (Miranda et al 2011a). Aquatic shelled molluscs are often particularly sensitive to low pH values, which may impair Ca 2+ uptake and deposition, resulting in shell erosion (Wilbur 1964;Økland 1983;Raddum et al 1988;Ewald et al 2009) and there is some evidence to suggest that T. granifera is sensitive to lower pH (Abbot 1952;Yong et al 1987;Miranda et al 2011b;Miranda and Perissonotto 2014b). However, pH values in the current study were highly negatively correlated with water temperature and were not a significant factor when replacing temperature in models.…”

Section: Discussionmentioning

confidence: 99%

The abundance of an invasive freshwater snail Tarebia granifera (Lamarck, 1822) in the Nseleni River, South Africa

Jones

Hill

Coetzee

et al. 2017

African Journal of Aquatic Science

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The invasive freshwater snail Tarebia granifera (Lamarck, 1822) was first reported in South Africa in 1999 and it has become widespread across the country, with some evidence to suggest that it reduces benthic macroinvertebrate biodiversity. The current study aimed to identify the primary abiotic drivers behind abundance patterns of T. granifera, by comparing the current abundance of the snail in three different regions, and at three depths, of the highly modified Nseleni River in KwaZulu-Natal, South Africa. Tarebia granifera was well established throughout the Nseleni River system, with an overall preference for shallow waters and seasonal temporal patterns of abundance. Although it is uncertain what the ecological impacts of the snail in this system are, its high abundances suggest that it should be controlled where possible and prevented from invading other systems in the region.

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Acute physiological responses of the freshwater snail Elimia flava (Mollusca: Pleuroceridae) to environmental pH and calcium

Cited by 8 publications

References 55 publications

Growth and shell hardness of the apple snail Pomacea flagellata Say, 1829, reared at three calcium concentrations

Growth and shell hardness of the apple snail Pomacea flagellata Say, 1829, reared at three calcium concentrations

Schistosomiasis prevention option: toxicological evaluation of Vernonia amygdalina on the tissues of Bulinus truncatus at different pH conditions

The abundance of an invasive freshwater snail Tarebia granifera (Lamarck, 1822) in the Nseleni River, South Africa

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