What is the star system?
The star system calculates the number of pieces that were handled by Conchology, Inc. in the last 21 years:
| 0 – 5 pieces | 6 stars |
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| 6 – 10 pieces | 5 stars |
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| 11 - 25 pieces | 4 stars | |
| 26 - 75 pieces | 3 stars | |
| 76 - 150 pieces | 2 stars | |
| > 150 pieces | 1 star | |
We want to point out that the star system is only very reliable for PHILIPPINE shells only, as we handle very few foreign shells in general. As time goes, the system will become more and more performant.
Shellers From the Past and the Present
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Zacherl, Danielle C. (Phd)
Biography of D. Zacherl
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California State University Fullerton, Biological Sciences Department - Edit
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Degrees PhD, University of California, Santa Barbara BA, Brown University Research Areas Marine Ecology, Marine Population Connectivity, Restoration Ecology, Marine Invertebrates Courses Regularly Taught Evolution and Biodiversity, Marine Biology, Invertebrate Zoology, Marine Ecology - Edit
Books and Publications by D. Zacherl
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2003. Zacherl, D.C., S.D. Gaines, and S.I. Lonhart. The limits to biogrographical distributions: insights from the northward range extension of the marine snail, Kelletia kelletii (Forbes, 1852). J. Biogeogr. 30:913-924. Source - Edit
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2005. Zacherl, D.C. Spatial and temporal variation in statolith and protoconch trace elements as natural tags to track larval dispersal. Mar. Ecol. Prog. Ser. 290:145-163 Source - Edit
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2011. Douglas J. Eernisse, Oscar A. Ortiz, Sean-Michael D. Mohoroski & Danielle C. Zacherl. A RAPID AND INEXPENSIVE BARCODE METHOD WITHOUT SEQUENCING FOR NATIVE AND INTRODUCED WESTERN NORTH AMERICAN OYSTERS. WSM Annual Report #44: 206-207. Source - Edit
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2014. Douglas J. Eernisse, Meredith Raith, Erik M. Pilgrim and Danielle C. Zacherl. PHYLOGENY OF OYSTERS FROM GULF OF CALIFORNIA AND PACIFIC COAST OF WESTERN NORTH AMERICA WITH IMPLICATIONS FOR OSTREIDAE CLASSIFICATIO. Oral Presentation: mollusca 2014 “el encuentro de las américas” sociedad de malacología de méxico, a.c Source - Edit
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2015. Danielle C Zacherl, Andrea Moreno & Shannon Crossen. Exploring Restoration Methods for the Olympia Oyster Ostrea lurida Carpenter, 1864: Effects of Shell Bed Thickness and Shell Deployment Methods on Shell Cover, Oyster Recruitment, and Oyster Density. Journal of Shellfish Research 34(3): 819-830. Source - Edit
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2018. Velarde ML, Zacherl DC. Effect of shell contraction behavior on gamete dispersal and fertilization success of the red abalone, Haliotis rufescens. American Malacological Society 2018 Program and Abstracts 136. Poster Source - Edit
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2019. Danielle Zacher. Dipping Our Toes Into a Sea of Possibilities: Defining the Unknown Functions and Requirements of Olympia Oysters via Science-based Restoration . World Congress of Malacology, Pacific Grove, CA. Source - Edit
Named after D. Zacherl
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Note from Tom Rice: genera used on this page are from the original discription where possible, no genera will be updated to the latest WORMS info,
as this would be an impossible task at hand. Thank you for your understanding.
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