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Relevant bibliographies by topics / Snail shell

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Academic literature on the topic 'Snail shell'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

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Journal articles on the topic "Snail shell"

1

Stel’makh, Sergey A., Evgenii M. Shcherban’, Alexey N. Beskopylny, et al. "Nanomodified Concrete with Enhanced Characteristics Based on River Snail Shell Powder." Applied Sciences 12, no. 15 (2022): 7839. http://dx.doi.org/10.3390/app12157839.

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The utilization of aquaculture waste, such as snail shells, is a severe issue. These shells are common in water-sources and are a by-product of sifting sand for masonry and concrete work. Calcium-rich river shells are of great interest for cement building materials. In this regard, the purpose of this article was to develop a nanomodified concrete with improved characteristics based on the powder of snail shells. Experimental studies have confirmed the effectiveness of the use of river shells in concrete without a decrease in strength characteristics and deterioration of other properties. It has been found that the optimal replacement by the snail shell powder that replaced cement is in the amount of 6%. By the nanomodification of concrete with the powdered shells of river snails, it was possible to achieve an increase in compressive strength up to 12%, axial compressive strength—up to 8%, tensile strength in bending—up to 9%, axial tensile strength—up to 11%, elastic modulus—up to 8%. Concrete nanomodification with snail shell powder in the amount of 6% contributed to a reduction of deformations of up to 7%. The study of the microstructure of concrete samples nanomodified with snail shell powder confirmed the obtained dependences of the cement’s properties on the nanomodifier dosage, as well as the most effective dosage of snail shell powder.

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Maya, Siti Maesunah Gilang, Raden Roro Fine Ayu Putri, Aisyah Sahara, Galuh Adhiyaksa Ashari, Abdurrahman Zaky, and Dimas Andrianto. "Comparison of Methods for Glucosamine Production from Achatina fulica Shells Waste." Current Biochemistry 4, no. 1 (2020): 15–22. http://dx.doi.org/10.29244/cb.4.1.15-22.

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Osteoarthritis is a degenerative joint disease. This disease occurs when the joint feels painful due to mild inflammation that arises due to activity with the bone of end friction joints. Glucosamine has been proven to stimulate the production of cartilage and inhibit the enzyme that destroys cartilage. Glucosamine which was obtained from the hydrolysis of chitin occurs in a variety of animals such as the shell of crustacea, insects, arthropods, and the shell of molluscs (snail shells). There is a large snail population in Indonesia. Some restaurants and people make use by product snails as food sources. However, this process leaves snail shell as a by product. The high yield of glucosamine produced from snail shells use methods such as reflux+water bath and reflux+magnetic stirrer was 1.47%. Glucosamine hydrochloride was obtained through autoclave at 121 °C and pressure 1 atm for 70 minutes. The presence of chitin, chitosan, glucosamine was confirmed using FTIR spectroscopy. A joint pain ointment was prepared using glucosamine hydrochloride from snail shells concentration at 1 % w/w. Results of this research will be very useful for the reduction of agricultural pests while simultaneously generating a new product that can lift the economic value of snail shells. Keywords: Chitin, Chitosan, Glucosamine, Osteoarthritis, Snail Shells

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3

Hayashi, Masakazu, and Shinji Sugiura. "Shell-breaking predation on gastropods by Badister pictus (Coleoptera, Carabidae) with strikingly asymmetric mandibles." ZooKeys 1044 (June 16, 2021): 815–30. http://dx.doi.org/10.3897/zookeys.1044.62293.

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The adults and larvae of some groups in the coleopteran family Carabidae are known to prey on snails (Mollusca: Gastropoda). Most species of the carabid tribe Licinini are believed to feed on live snails. However, the snail-eating behavior of only a few species has been studied. Whether adults of the licinine genus Badister can prey on live snails was tested by providing 155 live snails of 20 species (eleven terrestrial and nine aquatic species) to adults of Badister pictus Bates, 1873, and observing their behavior under laboratory conditions. Six of the 20 snail species have an operculum that can close the aperture of the shell. Each B. pictus adult attacked all of the snails provided. Badister pictus successfully preyed on ten terrestrial and six aquatic snail species. These beetles used their strikingly asymmetrical mandibles to break the dextral shells along the dorsal part of the whorls from the outer lip of the aperture towards the apex, allowing subsequent consumption of the soft bodies. However, 41.9% of snails could not be eaten by B. pictus adults. The rate of predation success by B. pictus decreased with increasing shell size and thickness of snails. In addition, the presence of an operculum decreased the rate of predation success by B. pictus. The results show that the shell size, thickness, and operculum of some snail species could play important roles in preventing B. pictus mandibles from breaking the shells. Therefore, Badister beetles may exert selective pressure on the evolution of defensive shell structures in small-sized snails.

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Hayashi, Masakazu, and Shinji Sugiura. "Shell-breaking predation on gastropods by Badister pictus (Coleoptera, Carabidae) with strikingly asymmetric mandibles." ZooKeys 1044 (June 16, 2021): 815–30. https://doi.org/10.3897/zookeys.1044.62293.

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The adults and larvae of some groups in the coleopteran family Carabidae are known to prey on snails (Mollusca: Gastropoda). Most species of the carabid tribe Licinini are believed to feed on live snails. However, the snail-eating behavior of only a few species has been studied. Whether adults of the licinine genus Badister can prey on live snails was tested by providing 155 live snails of 20 species (eleven terrestrial and nine aquatic species) to adults of Badister pictus Bates, 1873, and observing their behavior under laboratory conditions. Six of the 20 snail species have an operculum that can close the aperture of the shell. Each B. pictus adult attacked all of the snails provided. Badister pictus successfully preyed on ten terrestrial and six aquatic snail species. These beetles used their strikingly asymmetrical mandibles to break the dextral shells along the dorsal part of the whorls from the outer lip of the aperture towards the apex, allowing subsequent consumption of the soft bodies. However, 41.9% of snails could not be eaten by B. pictus adults. The rate of predation success by B. pictus decreased with increasing shell size and thickness of snails. In addition, the presence of an operculum decreased the rate of predation success by B. pictus. The results show that the shell size, thickness, and operculum of some snail species could play important roles in preventing B. pictus mandibles from breaking the shells. Therefore, Badister beetles may exert selective pressure on the evolution of defensive shell structures in small-sized snails.

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5

Nopriansyah, Eko, Ace Baehaki, and Rodiana Nopianti. "Pembuatan Serbuk Cangkang Keong Mas (Pomacea canaliculata L.) serta Aplikasinya sebagai Penjernih Air Sungai dan Pengikat Logam Berat Kadmium." Jurnal FishtecH 5, no. 1 (2016): 1–10. http://dx.doi.org/10.36706/fishtech.v5i1.3513.

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This study aims to produce golden snail shell powder that can be used as a purifier and a metal binder on Musi River water. The method used was a randomized block design with two factors, namely the type of purifier treatment (A) consist of golden snails shell powder and shrimp shell chitosan. Purifier concentration factor (B) is 0%, 0.5% and 1%. Data obtained through several stages in a row of manufactured of golden snail powder, application of golden snail shell powder and shrimp shell chitosan, and analyzed the effect of golden snail shell powder and shrimp shell chitosan on turbidity, TDS, pH and Cd concentration of water river. 80 grams of golden snail shell obtained 20 grams of golden snail shell powder. The golden snail shell powder produced known as calcium carbonate (CaCO3). Aplication of golden snail shell powder in water river able to lowering the turbidity 75% at 0.5% concentration and 78% at 1% concentration, increase the value of TDS is still within the threshold in range of 391.5 to 604 ppm, and increasing the pH in range of 5-7 which is still within the tolerance limits corresponding Government Regulation Number 416 of 1990. However, the golden snails shell powder raise the river water Cd concentration from 0.00782 to 0.00815 ppm, while the shrimp shell chitosan capable to lowering the concentration of Cd in river water of 0.00048-0.000518 ppm.

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Felici, Alberto, Nina Bilandžić, Gian Enrico Magi, et al. "Evaluation of Long Sea Snail Hinia reticulata (Gastropod) from the Middle Adriatic Sea as a Possible Alternative for Human Consumption." Foods 9, no. 7 (2020): 905. http://dx.doi.org/10.3390/foods9070905.

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In mid Adriatic Sea the common sea snail is the habitual snail eaten, but over the years fishermen started to capture also the long sea snail, a possible alternative for human consumption. This study aims to compare the quality traits of the edible fraction in the common and long sea snails. In this study, common and long sea snail samples were provided by fishermen in November 2018 and March 2019. Total weight (meat and shell), fractions of meat and shell (after having extracted the edible part), fatty acid, elements in meat, and calcium content in shells were determined. Meat quality traits showed high nutritional value without significant differences between the two species. The fatty acid profile showed n3/n6 ratio significantly different both considering the season of sampling (November: 4.1; March: 2.38) and the species of sea snail (common: 4.98; long: 2.86). The long species showed a higher yield in the total body and calcium content concentrations. However, the long sea snail showed 50% lower meat yield compared with the common sea snail. In conclusion, the long sea snail can be used as an alternative to the common sea snail for human consumption.

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Pattikawa, JA, DAJ Selanno, L. Siahainenia, RM Lamuhamad, ASW Retraubun, and JAB Mamesah. "Biological aspects of Rochia nilotica in Run Islands, Eastern Indonesia." IOP Conference Series: Earth and Environmental Science 1512, no. 1 (2025): 012011. https://doi.org/10.1088/1755-1315/1512/1/012011.

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Abstract Lola snail (Rochia nilotica) is an important marine resource economically and ecologically. Economically, meat of lola snail is traded for local consumption and the shells are exported as raw materials for making buttons, jewelry and nail paint. Ecologically, it controls the population of macro-algae attached to coral, thus it has a role for the health of coral reef. This research was conducted from July to August 2020 in Run Island, Maluku Province, Eastern Indonesia with the objectives to study biological aspects of lola snail which consist of size distribution, age group (cohort), length weight relationship and condition factor. Samples of lola snail were collected by using linear transect. Shell width of samples collected was measured and weighted. Totally, 80 individuals of lola snail were collected during the study. The results showed that shell width ranging from 10.4 to 120.5 mm (61.63 ± 35.07 mm) while weight ranging between 7.0 and 437.2 g (163.54 ± 183.81 g) and consist of six age groups (cohort). Regression analysis of shell width and weight showed that the value of b = 2.083 with the value of condition factor was 1.0. It can be concluded that population of lola snail (R. nilotica) in the area has six cohorts which consist of juvenile and adult individuals. In addition, the width shell of lola snails population grows faster than weight and has good condition to survive, grow and reproduce.

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Ito, Shun, and Junji Konuma. "Disruptive selection of shell colour in land snails: a mark–recapture study of Euhadra peliomphala simodae." Biological Journal of the Linnean Society 129, no. 2 (2019): 323–33. http://dx.doi.org/10.1093/biolinnean/blz168.

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Abstract Many theoretical studies have suggested that disruptive selection plays an important role in phenotypic divergence, but few studies have determined the action of disruptive selection on phenotypic divergence via field studies. This study investigated the effect of disruptive selection on shell colour polymorphism in the Japanese land snail Euhadra peliomphala simodae to determine whether extreme phenotypes of snail shell colour are favoured over intermediate phenotypes. We conducted field surveys on an oceanic island with black, yellow and intermediate-coloured E. p. simodae snails. We captured and marked ~1800 individual snails and monitored their survival over 18 months. We quantified shell colours against images and examined the frequency distribution of shell colour variation. The variation exhibited a bimodal distribution with a far lower frequency of intermediate-coloured snails than of black or yellow snails. The population sizes of the three snail groups fluctuated synchronously with the changing seasons. Bayesian estimates showed lower survival rates for juvenile intermediate-coloured snails than for juvenile black and yellow snails, implying there was disruptive selection associated with shell colour. We suggest this disruptive selection may have resulted in the evolutionary divergence of the snail’s shell colour within the lineage having high shell colour variation.

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Páll-Gergely, Barna, and Péter Sólymos. "Ants as shell collectors: notes on land snail shells found around ant nests." Malacologica Bohemoslovaca 8 (March 17, 2009): 14–18. http://dx.doi.org/10.5817/mab2009-8-14.

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We investigated the shell collecting activities of harvester ants (Messor spp.) in semi-arid grasslands and shrubs in Turkey. We found eleven species of snails in the area, two of them were not collected by ants. Eight – mainly small sized – snail species were found on ant nests in a habitat characterized by shrubs, three in rocky grassland and four in a grassland habitat. Some shells (e.g. Chondrus zebrula tantalus, Multidentula ovularis) might be taken into the nests, and we hypothesise that some of these snail species are consumed by ants (Monacha spp.). From a fauna inventory perspective, shell collecting activities of harvester ant may help malacologists to ﬁnd snail species which are normally hidden for a specialist (e.g. Oxychilus hydatinus, Cecilioides spp.) due to their special habits.

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Páll-Gergely, Barna, and Péter Sólymos. "Ants as shell collectors: notes on land snail shells found around ant nests." Malacologica Bohemoslovaca 8 (March 17, 2009): 14–18. https://doi.org/10.5281/zenodo.4115993.

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We investigated the shell collecting activities of harvester ants (Messor spp.) in semi-arid grasslands and shrubs in Turkey. We found eleven species of snails in the area, two of them were not collected by ants. Eight – mainly small sized – snail species were found on ant nests in a habitat characterized by shrubs, three in rocky grassland and four in a grassland habitat. Some shells (e.g. Chondrus zebrula tantalus, Multidentula ovularis) might be taken into the nests, and we hypothesise that some of these snail species are consumed by ants (Monacha spp.). From a fauna inventory perspective, shell collecting activities of harvester ant may help malacologists to find snail species which are normally hidden for a specialist (e.g. Oxychilus hydatinus, Cecilioides spp.) due to their special habits.

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Dissertations / Theses on the topic "Snail shell"

1

Hutchinson, John Michael Christopher. "Design in the shell shape of a terrestrial snail, Trichia hispida." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235782.

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Chaube, Pragya. "Genetic architecture of the shell characteristics in the marine snail Littorina saxatilis." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/23025/.

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Speciation is a key process underlying biodiversity. This process is facilitated by local adaptation, when divergent selection overcomes gene flow, resulting in the accumulation of reproductive barriers. Theory suggests that this accumulation is strongly dependent on the genetic architecture of the traits underlying local adaptation. The aim of this project was to investigate the genetic architecture of locally adaptive traits in the marine snail Littorina saxatilis. This marine snail (Littorina saxatilis) is an excellent model to study speciation and local adaptation. Two diverging ecotypes live a few metres apart in distinct habitats and face divergent selection pressures dominated by crab predation and wave action. The ecotypes have evolved traits to adapt locally that make them behaviourally and structurally distinct. The most observable differences are seen in the shell size, shape, colours and patterns. Despite the differences, the two ecotypes meet in narrow contact zones and hybridize. Intermediates between the two parental ecotypes are observed in a crab-wave environmental gradient across the hybrid zones. This situation provides an excellent opportunity to exploit the power of association mapping in the hybrid zone to elucidate the genetic architectures of the locally adaptive traits. However, a prerequisite for the application of evolutionary genetic approaches is a genomic toolbox. In Chapters 2 and 3, I describe the construction of a transcriptome assembly and high-density linkage map for this species. These genetic resources were utilized in the subsequent analyses and other studies in this system. In Chapter 4, I investigate the genetic architecture of the adaptive shell traits. Theory suggests that the ground colours or banding patterns possess Mendelian inheritance and may respond directly to selection or may be linked with genes that respond to the physical environment and may thus be affected by selection. Shell morphometric characters (size and shape) may have a more complex pattern of inheritance and tend to be responsive to the environmental conditions. Thus, shell characteristics are excellent to study divergent selection pressures and local adaptation while making it imperative to understand their underlying genetic architecture. In the current study, we applied association analysis to a single hybrid zone in Sweden to elucidate the genes underlying six shell phenotypic traits (size, shape, banding pattern, ground colours - beige, black and dark beige). We sampled individuals from the hybrid zone and implemented targeted capture-sequencing to obtain genotypic data. We identified loci associated with the black and beige ground colours and banding pattern of the shell. No significant associations with the shell shape and size were found which may suggest polygenic and complex architecture, consistent with the theoretical expectation. In addition, our analysis suggests a possible role for chromosomal inversion underlying locally adaptive traits. This thesis addressed longstanding questions regarding the genetic architecture of the adaptive shell traits in this organism and provides directions for the future follow-up studies. The genetic resources described in this thesis will assist the future studies that may address a wide-range of evolutionary questions in this species.

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Vice, President Research Office of the. "From Out of the Shell." Office of the Vice President Research, The University of British Columbia, 2006. http://hdl.handle.net/2429/2674.

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Kistner, Erica Jean. "Adaptive responses and invasion the role of plasticity and evolution in snail shell morphology /." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Spring2009/e_kistner_042509.pdf.

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Thesis (M.S. in zoology)--Washington State University, May 2009.<br>Title from PDF title page (viewed on Oct. 09, 2009). "School of Biological Sciences." Includes bibliographical references (p. 77-82).

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5

Trussell, Geoffrey Clayton. "Phenotypic clines in the intertidal snail Littorina obtusata: The role of water temperature and predator effluent as inducers of phenotypic plasticity and associated trade-offs in shell form." W&M ScholarWorks, 1998. https://scholarworks.wm.edu/etd/1539616881.

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I examined variability in the shell form of 25 Littorina obtusata populations from Massachusetts to northern Maine. I chose this scale because the history of one of L. obtusata's principal predators, the crab Carcinus maenas, has changed dramatically in the past 100 years. Before 1900, Carcinus did not occur north of Cape Cod, Massachusetts, but by 1950 it had reached Canadian border. Moreover, in summer water temperatures during average 6-8&\sp\circ&C colder at northern locations. Shell thickness and mass increased and body mass decreased with increasing latitude. to test whether these patterns reflect plasticity in response to predators, snails from two northern and two southern populations were raised in the laboratory with and without Carcinus effluent. Snails raised with Carcinus produced thicker shells than conspecifics raised without Carcinus. This response was accompanied by reduced body size and body growth. Another experiment examined whether geographic differences in water temperature induce changes in shell form. Snails reciprocally transplanted between a northern (Maine) and southern (Massachusetts) exhibited substantial plasticity in shell form. Southern snails transplanted north produced significantly thinner, lighter, shells than snails raised at their native shore, while northern snails transplanted south produced thicker, heavier shells than snails raised at the native shore. In addition, snails producing thicker, heavier shells exhibited reduced body mass and growth. Although patterns in final phenotypes exhibited cogradient variation, growth in both shell thickness and mass exhibited countergradient gradient variation. Most examples of countergradient variation are associated with temperature differences suggesting that differences in water temperature are responsible for this pattern. A third experiment involved reciprocally transplanting snails between the same two sites (temperature effect) and raising them with and without Carcinus effluent. In general, Carcinus effluent and warmer water temperatures induced thicker, heavier shells and reduced body mass and growth. Overall, it appears that predator effluent and water temperature have similar effects on shell form. My work on phenotypic plasticity encourages a more pluralistic view of phenotypic variation. Moreover, my results suggest that phenotypic plasticity is a ubiquitous strategy in adapting to different environments and that its evolution may be driven by life history trade-offs.

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Affenzeller, Susanne [Verfasser], Daniel John [Akademischer Betreuer] Jackson, Daniel John [Gutachter] Jackson, and Gregor [Gutachter] Bucher. "Pigments, Colours and Patterns - The contribution of eumelanin and pheomelanin to molluscan shell ornamentation with a special focus on the terrestrial snail Cepaea nemoralis / Susanne Affenzeller ; Gutachter: Daniel John Jackson, Gregor Bucher ; Betreuer: Daniel John Jackson." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1205544739/34.

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Leone, Stacy E. "Predator induced plasticity in barnacle shell morphology /." Abstract Full Text (HTML) Full Text (PDF), 2008. http://eprints.ccsu.edu/archive/00000496/02/1952FT.htm.

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Thesis (M.A.) -- Central Connecticut State University, 2008.<br>Thesis advisor: Jeremiah Jarrett. "... in partial fulfillment of the requirements for the degree of Master of Arts in Biology." Includes bibliographical references (leaves 27-29). Also available via the World Wide Web.

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Ash, V. B. "Resistance to shell breaking in two intertidal snails." Thesis, University of York, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379538.

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Nishi, Hirotaka. "Divergence of Euhadra land snails associated with differentiation in microhabitat, shell morphology and behavior." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136804.

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Holcroft, Lorelle. "Elucidating the diversity of mid-eastern Queensland Pinwheel Snails (Eupulmonata: Charopidae) using aspects of shell morphology." Thesis, Griffith University, 2018. http://hdl.handle.net/10072/380059.

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Species of Charopidae from mid-eastern Queensland in the collections of the Queensland and Australian Museums were reviewed primarily using aspects of shell morphology. Protoconch sculpture played a key role in this revision and 261 protoconchs were examined by scanning electron microscopy in order to develop a basic terminology that could be used in descriptions of genera and species. Eleven baseline patterns, some with subtle variations, were established. Eight of these are shown to be present in mid-eastern Queensland Charopidae. Studies of protoconch and teleoconch sculpture combined with shell coiling patterns showed that a number of genera and species, many newly documented, are represented. A cladistic analysis using a range of shell measurements was conducted to confirm these results. Additional verification, though limited, was sought through molecular analysis where animal tissue was available. Anatomical dissection of the male genitalia was performed on specimens of two species for which adequate preserved material was available. From an initial 13 known species, thirty-nine species of charopid are documented including a reallocation of the three ‘Gyrocochlea’ species currently described from the region resulting in three new genera, Whitcochlea gen. nov., Stanisicaropa gen. nov. and Radiolaropa gen. nov., and a new species, Radiolaropa eungella sp. nov. An additional four new Gyrocochlea-grade species are described in four new genera, Amfractaropa gen. nov., Comularopa gen. nov. Nodularopa gen. nov., and Xenoropa gen. nov. The genera Isolderopa Stanisic 2010 and Pereduropa Stanisic 2010 are expanded with the description of six new species. A new genus, Tristanoropa gen. nov. is diagnosed for the inclusion of three new species. Twelve additional species, some based on damaged specimens, are briefly described in order to complete the inventory. The majority of mid-eastern Queensland species appear to be endemic to the region. Biogeographical discussions focus on how the charopid fauna of the Central Mackay Coast Bioregion relates to similar faunas in bioregions to the north and south. Isolation of the region and its rainforests by dry corridors to the north and south that have developed as result of continental aridification since the Miocene may offer an explanation for the high endemicity of the mid-eastern Queensland charopid species.<br>Thesis (Masters)<br>Master of Philosophy (MPhil)<br>School of Environment and Sc<br>Science, Environment, Engineering and Technology<br>Full Text

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Books on the topic "Snail shell"

1

Langille, J. H. Snail-Shell Harbor. Bigwater Pub., 2001.

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Gosteli, Margret. Environmental influence on shell characters in alpine Arianta arbustorum (Gastropoda: Helicidae). Naturhistorisches Museum Bern, 2005.

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Parkinson, Brian J. Tropical landshells of the world. Verlag C. Hemmen, 1987.

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Nash, W. J. A bibliography of trochus (Trochus niloticus L.) (Gastropoda: Trochidae). International Center for Living Aquatic Resources Management, 1987.

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Han, Carolyn. Why snails have shells: Minority and Han folktales from China. University of Hawaii Press, 1993.

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Okutani, Takashi. Nihon rikudana shu hen no kairui (Fukusoku ko hen): Tairikudana shamen miriyo shigen seimitsu cho sa = Gastropods from continental shelf and slope around Japan : the intensive research of unexploited fishery resources on continental slopes. Nihon Suisan Shigen Hogo Kyo kai (Japan Fisheries Resource Conservation Association), 1988.

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Okutani, Takashi. Nihon rikudana shūhen no kairui (fukusokukō hen): Tairikudana shamen miriyō shigen seimitsu chōsa = Gastropods from continental shelf and slope around Japan : the intensive research of unexploited fishery resources on continental slopes. Nihon Suisan Shigen Hogo Kyōkai, 1988.

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Okutani, Takashi. Nihon rikudana shūhen no kairui (Fukusoku kō hen): Tairikudana shamen miriyō shigen seimitsu chōsa = Gastropods from continental shelf and slope around Japan : the intensive research of unexploited fishery resources on continental slopes. Nihon Suisan Shigen Hogo Kyōkai (Japan Fisheries Resource Conservation Association), 1988.

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Langille, J. H. Snail-Shell Harbor. Franklin Classics Trade Press, 2018.

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Snail Shell Cave. The National Speleological Society, 2012.

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Book chapters on the topic "Snail shell"

1

Davis, Jack. "Snail Shell Ear." In Aesthetic and Reconstructive Otoplasty. Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4613-9999-5_11.

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Adeosun, S. O., O. P. Gbenebor, E. I. Akpan, and S. A. Olaleye. "Characterization of Chitin Synthesized from Snail Shell." In TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51493-2_25.

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Saleuddin, A. S. M., H. R. Khan, M. Sevala, and V. Sevala. "Hormonal Control of Confirmed Shell Growth in the Snail Helisoma duryi (Mollusca: Gastropoda)." In Mechanisms and Phylogeny of Mineralization in Biological Systems. Springer Japan, 1991. http://dx.doi.org/10.1007/978-4-431-68132-8_27.

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Robinson Singh, Wangkhem, and Huirem Neeranjan Singh. "RSM Optimization of Biodiesel from Waste Cooking Oil Using Snail Shell Derived Heterogeneous Catalyst." In Springer Proceedings in Materials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3844-5_16.

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Puspitasari, Dwi Juli, Nurlaila L. Tapo, Arif Ahmadi, and Prismawiryanti. "Isothermal Adsorption Model of Reduction of Ni2+ Ion by Chitosan Membrane of Rice Snail Shell (Pilla ampullaceal)." In Proceedings of the 4th International Seminar on Science and Technology (ISST 2022). Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-228-6_27.

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Heller, Joseph. "Shell Degeneration: Sea Slugs and Relatives." In Sea Snails. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15452-7_9.

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Rosida, Dedin Finatsiyatull, Jariyah, Sekar Ayu Larasati, Teeradate Kongpichitchoke, Anugerah Dany Priyanto, and Andre Yusuf Trisna Putra. "Antioxidant and Anticholesterol Activity of Chitooligosaccarides Hydrolyzed of Golden Apple Snail (Pomacea canaliculata) Shell Using Various Types of Enzyme." In Advances in Biological Sciences Research. Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-168-5_8.

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Moumen, Aziz, Laidi Zahiri, Mustapha Jammoukh, and Khalifa Mansouri. "Numerical Modeling of the Thermomechanical Behavior of Polypropylene Reinforced by Snail Shell Particles as a Sustainable and Ecological Biocomposite." In Advanced Intelligent Systems for Sustainable Development (AI2SD’2020). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90633-7_31.

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Heller, Joseph. "Sacred Sounds from Sea Shells." In Sea Snails. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15452-7_13.

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Alao, Alice Osheiza, Abimbola Patricia Popoola, Omotayo Sanni, and Modupeola Dada. "Inhibition Performance of Snail Shell Nanoparticle Extract as a Sustainable Eco-friendly Inhibitor for API 5L X65 Pipeline Steel Corrosion Towards Acid Activation Environment." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50180-7_8.

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Conference papers on the topic "Snail shell"

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Chaovasuteeranon, Sarin, Firadao Boonmalert, Najwa Yanya Santiworakun, Acharee Suksuwan, Winai ,. Dahlan, and Nureesun Mahamud. "Characterization of Chitin Extracted from Apple Snail (Pomacea canaliculata) Shells: A Preliminary Study for Chitosan Production." In The International Halal Science and Technology Conference 2024 (IHSATEC): 17th Halal Science Industry and Business (HASIB). Yayasan Sinergi Riset dan Edukasi, 2024. https://doi.org/10.31098/hst24148.

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Background – GGolden apple snails (Pomacea canaliculata) are major pests in rice fields, causing significant challenges for farmers. Chemical controls leave sharp residual shells, increasing risks of leptospirosis and medical costs. While golden apple snails in Thailand are used for animal feed and wastewater treatment, they remain underutilized. Their shells, containing 20-50% chitin, can be extracted into chitosan-a non-toxic natural polymer suitable for Halal applications in health-related industries. Chitosan from snail shells offers an eco-friendly solution to reduce agricultural issues and promote sustainable economic opportunities for local communities. Purpose – This research aims to extract and characterize chitin from apple snail shells and evaluate its structural, chemical, and morphological properties. The study also examines contaminants like pesticide residues and heavy metals to assess its suitability for diverse applications. Design/methodology/approach – The extraction conditions included demineralization with 1 M HCl at 25 °C for 2 hours, deproteinization with 2 M NaOH at 25 °C for 2 hours. Fourier-transform infrared spectroscopy (FT-IR) confirmed functional groups, while Scanning Electron Microscopy (SEM) analyzed microstructure. Heavy metal and pesticide residues were assessed using AOAC methods. Findings – The resulting chitin yielded apploximately 40.77 % (w/w) of raw apple snail shells. The FT-IR absortion of light brown chitin powder showed 10 major characteristic peaks between 513 and 3430 cm-1. Metals like As, Cd, Pb, and Hg were undetected, except for 0.149 ppb Cu, and no pesticide residues were found. SEM analysis revealed that the particles had a polygonal shape with a rough surface texture. Research limitations – The extraction is limited by chitosan’s solubility in acid, requiring large shell fragments and higher solvent volumes, increasing cost and complexity. Originality/value – This study highlights that chitin extracted from apple snail shells offers a sustainable source for chitosan production. Utilizing this abundant but underused resource supports waste reduction and enhances agricultural productivity. Safety assessments, including tests for heavy metals and pesticides, confirm its suitability for applications in the food, pharmaceutical, and medical industries.

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Alumonah, J. A., C. Emeke, P. E. Ehihamen, C. A. Igwegbe, and K. Onyechi. "Snail Shells as Sustainable Remediation Agents: A Novel Approach to Removing Heavy Metals from Produced Water in the Oil and Gas Industry." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/221611-ms.

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Abstract Global environmental standards mandate Oil and Gas producers to treat Produced Water (PW) before disposal. This can pose an economic conundrum as PW's low economic value does not justify the high cost of treatment. This study explores the use of the adsorption capabilities of Achatina fulica snail shell particles in eliminating heavy metal contaminants from PW thus providing a better alternative without compromising industry standards. Through comprehensive optimization using response surface methodology and central composite design, various adsorption parameters such as temperature, adsorbent dosage, contact time, pH, and lead concentration were examined on wastewater samples. Lead nitrate content was measured as a heavy metal contaminant. The snail shell adsorbent underwent thorough characterization employing Scanning Electron Microscope (SEM), Energy- Disperse X-ray (EDX) analyses, and Fourier Transform Infra-Red Spectroscopy (FTIR). Atomic Absorption Spectrophotometry was employed for heavy metal analysis. Response Surface Methodology was employed to evaluate the adsorption of lead (II) ions on the bioadsorbent. The snail shell bioadsorbent exhibited a composition rich in various organic compounds and results indicated that lead ion removal positively correlated with increasing lead concentration and pH, inversely correlated with escalating snail shell dosage, and exhibited a slight decrease with contact time. Furthermore, optimal conditions for achieving a 99.3167% adsorption percentage of lead ions were identified. This study underscores the sustainable nature and efficacy of snail shells as a remarkable adsorbent for mitigating heavy metal contamination, particularly relevant to the challenges posed by heavy metal contamination in produced water in the oil and gas industry.

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Nield, Catherine, Yurena Yanes, Jeffrey S. Pigati, Jason A. Rech, Ted Von Proschwitz, and Jeffrey Nekola. "CALIBRATION OF LAND SNAIL SHELL OXYGEN ISOTOPES IN ALASKA." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-368379.

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Firkaly-Paciera, Joseph W., Nancye H. Dawers, and Samuel Anderson. "JOINT CONTROLS ON CAVE FORMATION AND MORPHOLOGY: SNAIL SHELL CAVE, TENNESSEE." In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-327218.

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Maftukhah, Siti, Dine Agustine, Monica Heri, and Hafid Arrizal. "Application of Golden Snail Shell Powder as a River Water Purifier." In Proceedings of the 1st International Conference on Social, Science, and Technology, ICSST 2021, 25 November 2021, Tangerang, Indonesia. EAI, 2022. http://dx.doi.org/10.4108/eai.25-11-2021.2318850.

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Salihu, A., A. T. Wasiu, A. S. B. Gimba, and H. Oruwari. "Biodioesel Production from Desert Dates (Balanite Aegyptiaca) Seeds." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/221767-ms.

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Abstract Petroleum is presently the most dominant source of global supply of energy; the consumption of it is on the increase due to the advance in technology, innovation and human population growth. In order to overcome this challenge, the production of biodiesel using heterogeneous- or homogenous-based catalyst has been considered in view of ease of catalyst separation from the mixture and low energy consumption. This study aimed to investigate the production of biodiesel using calcium oxide obtained from river snail shells through calcinations method at 800 oC for 4 hours in a muffle furnace and used as catalyst for the production of biodiesel from desert date seed oil. The chemical composition of the calcined river snail shell was determined by XRF (X-ray fluorescence) techniques. Desert date seed oil was transesterified into biodiesel using electromagnetic stirrer device. Methanol was introduced with CaO into the reaction vessel containing the desert date seed oil. The Central Composite Design method was achieved at varied temperature of 50-60 oC and the catalyst concentration between 0.5-2.0 wt% at constant reaction time of 1 hour 30 minutes after which the mixture was allowed to settle and the methyl ester (biodiesel) was separated from the mixture. The characterization of desert date seed oil methyl ester showed that the biodiesel had a flash point 65 oC, pour point of -4 oC, cloud point of 2 oC, acid value of 3.92 mgKOH/g and density of 0.87 g/cm3 and these values are all within the range as specified by ASTM (American Society for Testing and Materials) and EN (European Norm) standards for biodiesel. The FTIR (Fourier-transform infrared spectroscopy) analyses also reveal that desert date seed oil contains much oil content that makes it suitable raw materials for biodiesel production. The maximum response yield of biodiesel was 90% at the temperature of 60 oC and catalyst concentration of 0.5 wt%. This work further shows that derived catalyst obtained from river snail shell can be used as catalyst to produce biodiesel through transesterification process.

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Soto, Nora, Yurena Yanes, Timothy A. Pearce, and Arnold I. Miller. "ANTHROPOGENIC AND ENVIRONMENTAL INFLUENCE ON LAND SNAIL SHELL ASSEMBLAGES IN WOODLANDS FROM SW OHIO." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-316794.

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Hussain, Ala’a H., Muneer A. Al-Da’amy, and Eman T. Kareem. "Modification of snail shell for the removal of remazol brilliant blue dye from wastewater." In 4TH INTERNATIONAL SCIENTIFIC CONFERENCE OF ENGINEERING SCIENCES AND ADVANCES TECHNOLOGIES. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0156971.

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Almeida, Marcelo N., Rodolfo Alves de Oliveira, Luiz Olmes, et al. "HELIX: A data-driven characterization of Brazilian land snails." In Simpósio Brasileiro de Banco de Dados. Sociedade Brasileira de Computação - SBC, 2021. http://dx.doi.org/10.5753/sbbd.2021.17892.

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Decision-support systems benefit from hidden patterns extracted from digital information. In the specific domain of gastropod characterization, morphometrical measurements support biologists in the identification of land snail specimens. Although snails can be easily identified by their excretory and reproductive systems, the after-death mollusk body is commonly inaccessible because of either soft material deterioration or fossilization. This study aims at characterizing Brazilian land snails by morphometrical data features manually taken from the shells. In particular, we examined a dataset of shells by using different learning models that labeled snail specimens with a precision up to 97.5% (F1-Score = .975, CKC = .967 and ROC Area = .998). The extracted patterns describe similarities and trends among land snail species and indicates possible outliers physiologies due to climate traits and breeding. Finally, we show some morphometrical characteristics dominate others according to different feature selection biases. Those data-based patterns can be applied to fast land snail identification whenever their bodies are unavailable, as in the recurrent cases of lost shells in nature or private and museum collections.

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Erwin, Erwin, T. Fadrial Karmil, Teuku Zahrial Helmi, et al. "Biochemical Changes of Liver and KidneyAfter Bone Graft Implant from Black Devil Snail (Faunus ater) Shell Material." In 2nd International Conference on Veterinary, Animal, and Environmental Sciences (ICVAES 2020). Atlantis Press, 2021. http://dx.doi.org/10.2991/absr.k.210420.007.

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