Results 1 to 10 of about 144,405 (308)

Performance Implications of Divergent Shell Size Preferences and Exoskeleton Mass of Two Closely Related Hermit Crabs [PDF]

Ecology and Evolution
Hermit crabs use gastropod shells for protection from abiotic stressors and predators. However, two sympatric species of hermit crab, Pagurus hirsutiusculus and Pagurus granosimanus, have divergent shell size preferences.
Chloe B. MacLean, Louis A. Gosselin
doaj   +2 more sources

Pelatihan Pengolahan Cangkang Tiram Secara Tradisional Bagi Ibu-Ibu Petani Tiram di Desa Alue Naga Syiah Kuala Banda Aceh

Dinamisia, 2022
The majority of people work as fishermen and their geographical location on the coast make Gampong Alue Naga produce quite a lot of fishery waste, especially oyster shells.
Lia handayani, Azwar Thaib, Nurhayati nurhayati, faisal syahputra, Dwi Apriliani, Suraiya Nazlia, Ainal mardhiah   +6 more
doaj   +1 more source

Feasibility of near-infrared spectroscopy for species identification and parasitological diagnosis of freshwater snails of the genus Biomphalaria (Planorbidae)

PLoS ONE, 2021
Near Infrared Spectroscopy (NIRS) has been applied in epidemiological surveillance studies of insect vectors of parasitic diseases, such as the Dengue’s mosquitoes.
Vanessa Valladares, Célio Pasquini, Silvana Carvalho Thiengo, Clélia Christina Mello-Silva   +3 more
doaj   +2 more sources

Study of the biogas potential generated from residue: peanut shells

Revista Brasileira de Ciências Ambientais, 2021
The increase in agricultural production generates a large volume of waste, which may lead to concerns about its proper destination. The main economic activity in Herculândia City, Western region of São Paulo State, Brazil, is the production and ...
Cristiano Vieira dos Santos, Ana Elisa Bressan Smith Lourenzani, Mario Mollo Neto, Leonardo Alexandre Lopes, Paulo Sérgio Barbosa dos Santos   +4 more
doaj   +1 more source

Acoustic scattering by benthic and planktonic shelled animals [PDF]

The Journal of the Acoustical Society of America, 2000
Acoustic backscattering measurements and associated scattering modeling were recently conducted on a type of benthic shelled animal that has a spiral form of shell (Littorina littorea). Benthic and planktonic shelled animals with this shape occur on the seafloor and in the water column, respectively, and can be a significant source of acoustic ...
Stanton, Timothy K., Chu, Dezhang, Wiebe, Peter H., Eastwood, Robert L., Warren, Joseph D.   +4 more
openaire   +3 more sources

Farmers’ perceptions and willingness to adopt egg and snail shells as alternative calcium sources for poultry production in the Western region of Ghana

Journal of Agriculture and Food Research, 2023
This paper examined farmers’ awareness, perceptions, and willingness to adopt eggshells and/or snail shells as alternative sources of calcium in the formulation of poultry feed.
Alfred Kelvin Boakye, Bright Owusu Asante, Solomon Akutinga, Daniel Agyeman, Stephen Prah, Frank Idan, Christopher Antwi, Irene Serwaa Asante   +7 more
doaj   +1 more source

Efficient Animation of Point‐Sampled Thin Shells [PDF]

Computer Graphics Forum, 2005
We present a novel framework for the efficient simulation and animation of discrete thin shells. Our method takes a point sampled surface as input and performs all necessary computations without intermediate triangulation. We discretize the thin shell functional using so-called fibers.
Martin Wicke, Denis Steinemann, Markus Gross   +2 more
openaire   +1 more source

Dissolution dominating calcification process in polar pteropods close to the point of aragonite undersaturation [PDF]

, 2014
Thecosome pteropods are abundant upper-ocean zooplankton that build aragonite shells. Ocean acidification results in the lowering of aragonite saturation levels in the surface layers, and several incubation studies have shown that rates of calcification ...
AG Dickson, B Hunt, BA Price, BI McNeil, C Klaas, C Mehrbach, CS Davis, Dorothee C. E. Bakker, EM Harper, FJ Millero, GA Tarling, Geraint A. Tarling, GR Harbison, J Le Fèvre, J Trotter, JA McGowan, JB Ries, JB Ries, JC Orr, JH Waite, JW Morse, JW Morse, M Gehlen, M Steinacher, M Whitfield, N Bednaršek, N Bednaršek, N Bednaršek, Nina Bednaršek, Pauline Ross, PR Betzer, R Gangstø, R Gangstø, R Rodolfo-Metalpa, RA Berner, RA Berner, RA Feely, RA Feely, RA Feely, RA Feely, RA Feely, RA Feely, RA Feely, RH Byrne, Richard A. Feely, RJ Larson, RS Keir, S Comeau, S Comeau, S Comeau, S Emerson, S Lischka, S Lischka, Sophie Fielding, VJ Fabry, VJ Fabry, W Sato-Okoshi, WD Gardner   +57 more
core   +11 more sources

Elevated temperature and carbon dioxide levels alter growth rates and shell composition in the fluted giant clam, Tridacna squamosa

Scientific Reports, 2022
Giant clams produce massive calcified shells with important biological (e.g., defensive) and ecological (e.g., habitat-forming) properties. Whereas elevated seawater temperature is known to alter giant clam shell structure, no study has examined the ...
Eric J. Armstrong, Sue-Ann Watson, Jonathon H. Stillman, Piero Calosi   +3 more
doaj   +1 more source

Metabolic and behavioural effects of hermit crab shell removal techniques: Is heating less invasive than cracking?

Animal Welfare, 2023
Hermit crabs (Paguroidea; Latreille 1802) offer great opportunities to study animal behaviour and physiology. However, the animals’ size and sex cannot be determined when they are inside their shell; information crucial to many experimental designs. Here,
Luis M Burciaga, Guillermina Alcaraz
doaj   +1 more source