Ysgol Gwyddorau Eigion

  1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd

    Responses of coastal ecosystems to environmental variability in emerging countries from the Americas

    Muniz, P., Calliari, D., Gimenez, L. & Defeo, O., 23 Hyd 2015, Yn: Estuarine, Coastal and Shelf Science. 166, Part A, t. 1-3

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    Restructuring of benthic communities in eutrophic estuaries: lower abundance of prey leads to trophic shifts from omnivory to grazing.

    Fox, S. E., Teichberg, M., Olsen, Y. S., Heffner, L. & Valiela, I., 7 Ebr 2009, Yn: Marine Ecology Progress Series. 380, t. 43-57

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    Resuspension of benthic fluff by tidal currents in deep stratified waters, northern North Sea.

    Jago, C. F., Jones, S. E., Latter, R. J., Mccandliss, R. R., Hearn, M. R. & Howarth, M. J., 1 Rhag 2002, Yn: Journal of Sea Research. 48, 4, t. 259-269

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation

    Evans, D. J. A., Roberts, D. H., Bateman, M. D., Medialdea, A., Callard, L., Grimoldi, E., Chiverrell, R. C., Ely, J., Dove, D., Ó Cofaigh, C., Saher, M., Bradwell, T., Moreton, S. G., Fabel, D. & Bradley, S. L., 1 Gorff 2021, Yn: Journal of Quaternary Science. 36, 5, t. 723-751

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. Cyhoeddwyd

    Reversed sediment wave migration in the Irish Sea, NW Europe: A reappraisal of the validity of geometry-based predictive modelling and assumptions

    Van Landeghem, K. J., Baas, J. H., Mitchell, N., Wilcockson, D. & Wheeler, A. J., 15 Chwef 2012, Yn: Marine Geology. 295-298, t. 95-112

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    Review of climate change impacts on marine aquaculture in the UK and Ireland

    Callaway, R., Shinn, A. P., Grenfell, S. E., Bron, J. E., Burnell, G., Cook, E. J., Crumlish, M., Culloty, S., Davidson, K., Ellis, R. P., Flynn, K. J., Fox, C., Green, D. M., Hays, G. C., Hughes, A., Jhonston, E., Lowe, C. D., Lupatsch, I., Malham, S., Mendzil, A. F., Nickell, T., Pickerell, T., Rowley, A. F., Stanley, M. S., Tocher, D. R., Turnbull, J. F., Webb, G., Wootton, E. & Shields, R., 22 Maw 2013, Yn: Aquatic Conservation: Marine and Freshwater Ecosystems. 22, 3, t. 389-421

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    Review: Bigelow and Schroeder’s Fishes of the Gulf of Maine

    Kaiser, M. J., 1 Rhag 2003, Yn: Fish and Fisheries. 4, 4, t. 372

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    Review: Fish Habitat. [Ed. L. Benaka]. Symposium of the American Fisheries Society, No. 22, Bethesda, Maryland

    Kaiser, M. J., 1 Medi 2000, Yn: Fish and Fisheries. 1, 3, t. 275-276

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    Reynolds Stress and TKE production in an estuary with a tidal bore.

    Simpson, J., Fisher, N. & Wiles, P. J., 1 Awst 2004, Yn: Estuarine, Coastal and Shelf Science. 60, 4, t. 619-627

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    Reynolds stress and turbulent energy production in a tidal channel.

    Rippeth, T., Williams, E. & Simpson, J. H., 1 Ebr 2002, Yn: Journal of Physical Oceanography. 32, 4, t. 1242-1251

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Rip Current Prediction: Development, Validation, and Evaluation of an Operational Tool

    Austin, M. J., Scott, T. M., Russell, P. E. & Masselink, G., 1 Hyd 2013, Yn: Journal of Coastal Research. 29, 2, t. 283-300 18 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    Ripple formation induced by biogenic mounds – Comment

    Baas, J. H. & Best, J. L., 15 Awst 2000, Yn: Marine Geology. 168, 1-4, t. 145-151

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Risk assessment of wildlife-watching tourism in an important endangered loggerhead turtle rookery

    Marco, A., Martins, S., Martin-Rabano, A., Lopes, S., Clarke, L. J. & Abella, E., 2021, Yn: Endangered Species Research. 45, t. 195-207

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    Rocky intertidal community structure in oceanic islands: scales of spatial variability.

    Martins, G. M., Thompson, R. C., Hawkins, S. J., Neto, A. I. & Jenkins, S. R., 18 Maw 2008, Yn: Marine Ecology Progress Series. 356, t. 15-24

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    Rocky intertidal macrobenthic communities across a large-scale estuarine gradient

    Gimenez, L., Borthagaray, A. I., Rodriguez, M., Brazeiro, A. & Carranza, A., 1 Maw 2010, Yn: Scientia Marina. 74, 1, t. 87-100

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    Role of carbonate burial in Blue Carbon budgets

    Saderne, V., Geraldi, N. R., Macreadie, P. I., Maher, D. T., Middelburg, J. J., Serrano, O., Almahasheer, H., Arias-Ortiz, A., Cusack, M., Eyre, B. D., Fourqurean, J. W., Kennedy, H., Krause-Jensen, D., Kuwae, T., Lavery, P. S., Lovelock, C. E., Marba, N., Masque, P., Mateo, M. A., Mazarrasa, I., McGlathery, K. J., Oreska, M. P. J., Sanders, C. J., Santos, I. R., Smoak, J. M., Tanaya, T., Watanabe, K. & Duarte, C. M., 7 Maw 2019, Yn: Nature Communications. 10, 1106.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    Role of microbial mats in Sulaibikhat Bay (Kuwait) mudflat food webs: evidence from delta C-13 analysis

    Al-Zaidan, A. S., Kennedy, H., Jones, D. A. & Al-Mohanna, S. Y., 16 Chwef 2006, Yn: Marine Ecology Progress Series. 308, t. 27-36

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    Role of trait combinations, habitat matrix and network topology in metapopulation recovery from regional extinction

    Gimenez Noya, J., Robins, P. & Jenkins, S., Ebr 2020, Yn: Limnology and Oceanography. 65, 4, t. 775-789

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    Role of wave forcing, storms and NAO in outer bar dynamics on a high-energy, macro-tidal beach

    Masselink, G., Austin, M. J., Scott, T., Poate, T. & Russell, P., 2 Awst 2014, Yn: Geomorphology. 226, t. 76-93

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    SEASTAR: A Mission to Study Ocean Submesoscale Dynamics and Small-Scale Atmosphere-Ocean Processes in Coastal, Shelf and Polar Seas

    Gommenginger, C., Chapron, B., Hogg, A., Buckingham, C., Fox-Kemper, B., Eriksson, L., Soulat, F., Ubelmann, C., Ocampo-Torres, F., Nardelli, B. B., Griffin, D., Lopez-Dekker, P., Knudsen, P., Andersen, O., Stenseng, L., Stapleton, N., Perrie, W., Violante-Carvalho, N., Schulz-Stellenfleth, J., Woolf, D., Isern-Fontanet, J., Ardhuin, F., Klein, P., Mouche, A., Pascual, A., Capet, X., Hauser, D., Stoffelen, A., Morrow, R., Aouf, L., Breivik, Ø., Fu, L-L., Johannessen, J. A., Aksenov, Y., Bricheno, L., Hirschi, J., Martin, A. C. H., Martin, A. P., Nurser, G., Polton, J., Wolf, J., Johnsen, H., Soloviev, A., Jacobs, G. A., Collard, F., Groom, S., Kudryavtsev, V., Wilkin, J., Navarro, V., Babanin, A., Martin, M., Siddorn, J., Saulter, A., Rippeth, T., Emery, B., Maximenko, N., Romeiser, R., Graber, H., Azcarate, A. A., Hughes, C. W., Vandemark, D., Silva, J. D., Leeuwen, P. J. V., Naveira-Garabato, A., Gemmrich, J., Mahadevan, A., Marquez, J., Munro, Y., Doody, S. & Burbidge, G., 13 Awst 2019, Yn: Frontiers in Marine Science. 6, t. 1-7 8 t., 457.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    Salt Removal - Last Word.

    Thomas, D. N., 21 Hyd 2000, Yn: New Scientist.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    Salt-marsh reconstructions of relative sea-level change in the North Atlantic during the last 2000 years

    Barlow, N. L. M., Long, A. J., Saher, M. H., Gehrels, W. R., Garnett, M. H. & Scaife, R. G., 1 Medi 2014, Yn: Quaternary Science Reviews. 99, t. 1-16

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    Saltmarsh resilience to periodic shifts in tidal channels

    Ladd, C. J. T., Duggan Edwards, M., Pages, J. F. & Skov, M., 20 Hyd 2021, Yn: Frontiers in Marine Science. 8, 13 t., 757715.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    Satellite and In Situ Observations for Advancing Global Earth Surface Modelling: A Review

    Balsamo, G., Agusti-Parareda, A., Albergel, C., Arduini, G., Beljaars, A., Bidlot, J., Bousserez, N., Boussetta, S., Brown, A., Buizza, R., Buontempo, C., Chevallier, F., Choulga, M., Cloke, H., Cronin, M. F., Dahoui, M., De Rosnay, P., Dirmeyer, P. A., Drusch, M., Dutra, E., Ek, M. B., Gentine, P., Hewitt, H., Keeley, S. P. E., Kerr, Y., Kumar, S., Lupu, C., Mahfouf, J-F., McNorton, J., Mecklenburg, S., Mogensen, K., Munoz-Sabater, J., Orth, R., Rabier, F., Reichle, R., Ruston, B., Pappenberger, F., Sandu, I., Seneviratne, S. I., Tietsche, S., Trigo, I. F., Uijlenhoet, R., Wedi, N., Woolway, R. I. & Zeng, X., 14 Rhag 2018, Yn: Remote Sensing. 10, 12

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    Satellite remote sensing of the geographical distribution of suspended particle size in an energetic shelf sea

    Bowers, D. G., Binding, C. E. & Ellis, K., 1 Gorff 2007, Yn: Estuarine, Coastal and Shelf Science. 73, 3-4, t. 457-466

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Saving Fragile Forests

    Thomas, D. N., 18 Chwef 2000, Yn: Times Higher Education Supplement.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    Scale-dependent natural variation in larval nutritional reserves in a marine invertebrate: implications for recruitment and cross-ecosystem coupling

    Gimenez Noya, J., Torres, G., Pettersen, A., Burrows, M. T., Estevez, A. & Jenkins, S., Ebr 2017, Yn: Marine Ecology Progress Series. 570, t. 141-155

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    Scale-dependent patterns of macrofaunal distribution in soft-sediment intertidal habitats along a large-scale estuarine gradient.

    Gimenez Noya, L., Borthagaray, A. I., Rodrigues, M., Brazeiro, A. & Dimitriadis, C., 1 Hyd 2005, Yn: Helgoland Marine Research. 59, 3, t. 224-236

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Scale-dependent patterns of variability in species assemblages of the rocky intertidal at Helgoland (German Bight, North Sea).

    Reichert, K., Buchholz, F., Bartsch, I., Kersten, T. & Gimenez, L., 1 Tach 2008, Yn: Journal of the Marine Biological Association of the United Kingdom. 88, 7, t. 1319-1329

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    Scale-dependent spatial and temporal patterns of abundance and population structure of the xanthid crab Leptodius exaratus on rocky shores in Kuwait

    Al-Wazzan, Z., Vay, L. L., Behbehani, M. & Giménez, L., 31 Mai 2020, Yn: Regional Studies in Marine Science. 37, t. 101325 1 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    Scale-dependent spatial patterns in benthic communities around a tropical island seascape

    Aston, E. A., Williams, G. J., Green, J. A. M., Davies, A. J., Wedding, L. M., Gove, J. M., Jouffray, J-B., Jones, T. T. & Clark, J., Maw 2019, Yn: Ecography. 42, 3, t. 578-590

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Scales of horizontal patchiness in chlorophyll-a, chemical and physical properties of landfast sea ice in the Gulf of Finland (Baltic Sea).

    Granskog, M. A., Kaartokallio, H., Kuosa, H., Thomas, D. N., Ehn, J. & Sonninen, E., 1 Maw 2005, Yn: Polar Biology. 28, 4, t. 276-283

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Scaling up: the role of species and habitat patches in functioning of coastal ecosystems.

    Hawkins, S. J., 1 Mai 2004, Yn: Aquatic Conservation - Marine and Freshwater Ecosystems. 14, 3, t. 217-219

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    Sea ice contribution to the air–sea CO2 exchange in the Arctic and Southern Oceans

    Rysgaard, S., Bendtsen, J., Delille, B., Dieckmann, G. S., Glud, R., Kennedy, H., Mortensen, J., Papadimitriou, S., Thomas, D. N. & Tison, J. L., 1 Mai 2011, Yn: Tellus B. 63, 5, t. 823-830

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    Sea ice in the Baltic Sea – A Review.

    Granskog, M., Kaartokallio, H., Kuosa, H., Thomas, D. N. & Vainio, J., 1 Hyd 2006, Yn: Estuarine, Coastal and Shelf Science. 70, 1-2, t. 145-160

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. Cyhoeddwyd

    Sea level rise and tidal power plants in the Gulf of Maine

    Pelling, H. E. & Green, J. A., 11 Meh 2013, Yn: Journal of Geophysical Research. 118, 6, t. 2863-2873

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    Sea level rise will change estuarine tidal energy: A review

    Khojasteh, D., Lewis, M., Tavakoli, S., Farzadkhoo, M., Felder, S., Iglesias, G. & Glamore, W., 1 Maw 2022, Yn: Renewable and Sustainable Energy Reviews. 156, 111855.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Sea-breeze forced diurnal surface currents in the Thermaikos Gulf, north-west Aegean.

    Hyder, P., Simpson, J. H. & Christopoulos, S., 1 Maw 2002, Yn: Continental Shelf Research. 22, 4, t. 585-601

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    Sea-level changes in Iceland and the influence of the North Atlantic Oscillation during the last half millennium

    Saher, M. H., Gehrels, W. R., Barlow, N. L. M., Long, A. J., Haigh, I. D. & Blaauw, M., 15 Ion 2015, Yn: Quaternary Science Reviews. 108, t. 23-36

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    Seabed morphology and bed shear stress predict temperate reef habitats in a high energy marine region

    Jackson-Bue, T., Williams, G., Whitton, T., Roberts, M., Goward Brown, A., Amir, H., King, J., Powell, B., Rowlands, S., Llewelyn Jones, G. & Davies, A., 5 Medi 2022, Yn: Estuarine, Coastal and Shelf Science. 274, 107934.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    Seafloor evidence for palaeo-ice streaming and calving of the grounded Irish Sea Ice Stream: Implications for the interpretation of its final deglaciation phase.

    Van Landeghem, K. J., Wheeler, A. J. & Mitchell, N. C., 1 Chwef 2009, Yn: Boreas. 38, 1, t. 119-131

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  43. Cyhoeddwyd

    Seagrass ecosystems as a globally significant carbon stock

    Fourqurean, J. W., Duarte, C. M., Kennedy, H., Marbà, N., Holmer, M., Mateo, M. A., Apostolaki, E. T., Kendrick, G. A., Krause-Jensen, D., McGlathery, K. J. & Serrano, O., 20 Mai 2012, Yn: Nature Geoscience. 5, t. 505-509

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    Seagrass meadows as a globally significant carbonate reservoir

    Mazarrasa, I., Marba, N., Lovelock, C. E., Serrano, O., Lavery, P. S., Fourqurean, J. W., Kennedy, H. A., Mateo, M. A., Krause-Jensen, D., Steven, A. D. & Duarte, C. M., 24 Awst 2015, Yn: Biogeosciences. 12, 16, t. 4993-5003

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    Seagrass sediments as a global carbon sink: isotopic constraints.

    Kennedy, H. A., Beggins, J., Duarte, C. M., Fourqurean, J. W., Holmer, M., Marba, N. & Middelburg, J. J., 10 Rhag 2010, Yn: Global Biogeochemical Cycles. 24, t. GB4026

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    Seasonal abundance and recruitment in an estuarine population of mud crabs, Scylla paramamosain, in the Mekong Delta, Vietnam

    Le Vay, L., Ut, V. N. & Jones, D. A., Ebr 2001, Yn: Hydrobiologia. 449, 1-3, t. 231-239

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Seasonal abundance, distribution and recruitment of mud crabs (Scylla spp.) in replanted mangroves.

    Walton, M. E., Le Vay, L., Lebata, J. H., Binas, J. & Primavera, J. H., 1 Chwef 2006, Yn: Estuarine, Coastal and Shelf Science. 66, 3-4, t. 493-500

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. Cyhoeddwyd

    Seasonal abundance, spatial distribution, spawning and growth of Astropecten irregularis (Echinodermata : Asteroidea).

    Freeman, S. M., Richardson, C. & Seed, R., 1 Gorff 2001, Yn: Estuarine, Coastal and Shelf Science. 53, 1, t. 39-49

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  49. Cyhoeddwyd

    Seasonal and diurnal surveillance of treated and untreated wastewater for human enteric viruses

    Farkas, K., Marshall, M., Cooper, D., McDonald, J. E., Malham, S. K., Peters, D. E., Maloney, J. D. & Jones, D. L., Tach 2018, Yn: Environmental Science and Pollution Research. 25, 33, t. 33391-33401

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    Seasonal and interannual variability in temperature, chlorophyll and macronutrients in northern Marguerite Bay, Antarctica.

    Clarke, A., Meredith, M. P., Wallace, M. I., Brandon, M. A. & Thomas, D. N., 1 Medi 2008, Yn: Deep Sea Research Part II: Topical Studies in Oceanography. 55, 18-19, t. 1988-2006

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    Seasonal and spatial dynamics of enteric viruses in wastewater and in riverine and estuarine receiving waters

    Malham, S., Farkas, K., McDonald, J., Jones, D. L., Cooper, D. & de Rougemont, A., 1 Medi 2018, Yn: Science of the Total Environment. 634, t. 1174 1183 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid