Faculty Webpage: Mary Wicksten2019-06-18T19:11:54+00:00
Profile Photo of Mary Wicksten

Mary Wicksten


Fax: 979-845-2891

Curriculum Vitae

3258 TAMU
Butler Hall
Room 304A

Butler Hall
Room 304

Joined the Department in 1980

  • A.B., 1970, Humboldt State College, Biology.
  • M.A., 1972, Humboldt State College, Biology.
  • Ph.D., 1977, University of Southern California.
  • Postdoctoral research: University of Southern California.

Symbiosis, behavior and adaptive coloration in marine decapod Crustacea

Decapods are among the best-known crustaceans, ranging from tiny shrimp to crabs with a leg span of up to nearly 4 m. Major predators, disturbers of sediments, and elements of food chains, these animals are found in almost all marine habitats. New species continue to be found. Of those already known to science, often the descriptions are very old and lack details needed for more modern comparative work. Genetic studies are in their infancy. My graduate students currently are studying the ecology of decapods and other crustaceans along the poorly-studied Texas coast.

Decapods can range in color from brilliantly marked to dull, white or transparent. Color patterns can function in camouflage, courtship, or aggressive displays, but may differ within a single species according to age, diet, or sex. Pigmentation may be a function not only of visual communication but also serve in physiological processes. Some crabs add to their camouflage by carrying foreign objects or attaching sponges, shells, algae, etc. to their bodies. Studies on adaptive coloration and camouflage can integrate laboratory work under controlled conditions with observations and photography in the natural habitat. My work on spider crabs and hippolytoid shrimp indicates phylogenetic trends in behavior and coloration within certain clades and marked differences within others.

New remotely operated vehicles can operate at depths of 4000 m or more and transmit live video feed and high resolution still photos directly from the sea floor to my office. These images show animals previously known only from broken bleached dead specimens as living animals in their natural habitat. I cooperate in identifiying these crustaceans as best as possible in the absence of specimens. I have been able to correlate “morphospecies” with particular host corals or sponges. I am working on new syntheses on biogeography of decapods at 700-4400 m, host specificity and behavior. With thousands of available photographs from the Gulf of Mexico and Pacific, I am happy to accommodate undergraduate and graduate students looking for projects.

  1. Hancock, Z. and M.K. Wicksten. 2018. Two new species of sand-burrowing amphipods of the genus Haustorius (Amphipoda: Haustoriidae) in gthe northwestern Gulf of Mexico. Zootaxa 4459:101-127.
  2. Sigwart, J., M.K. Wicksten, M. Jackson, S. Herrera. Deep sea video technology tracks a monoplacophoran to the end of its trail (Mollusca, Tryblida). Marine Biodiversity (on-line)
  3. Wicksten, M.K. 2017. Feeding on cnidarians by giant pycnogonids (Pycnogonida: Colossendeidae Jarzinsky, 1870) in the North Central Pacific and North Atlantic oceans. J. Crust. Biol. 37: 359-360.
  4. Hancock, ZB, Goeke, JA, Wicksten, MK. A sea anemone of many names: a review of the taxonomy and distribution of the invasive actiniarian Diadumene lineata (Diadumenidae), with records of its reappearance on the Texas coast. Zookeys. 2017; (706):1-15. doi: 10.3897/zookeys.706.19848. PubMed PMID:29118617 PubMed Central PMC5674082.
  5. Amon, DJ, Ziegler, AF, Drazen, JC, Grischenko, AV, Leitner, AB, Lindsay, DJ et al.. Megafauna of the UKSRL exploration contract area and eastern Clarion-Clipperton Zone in the Pacific Ocean: Annelida, Arthropoda, Bryozoa, Chordata, Ctenophora, Mollusca. Biodivers Data J. 2017; (5):e14598. doi: 10.3897/BDJ.5.e14598. PubMed PMID:28874906 PubMed Central PMC5565845.
  6. Wicksten, M, De Grave, S, France, S, Kelley, C. Presumed filter-feeding in a deep-sea benthic shrimp (Decapoda, Caridea, Stylodactylidae), with records of the deepest occurrence of carideans. Zookeys. 2017; (646):17-23. doi: 10.3897/zookeys.646.10969. PubMed PMID:28228673 PubMed Central PMC5299437.
  7. Baba, K, Wicksten, MK. Uroptychus nitidus (A. Milne-Edwards, 1880) and related species (Crustacea: Decapoda: Anomura: Chirostylidae) from the western Atlantic. Zootaxa. 2017;4221 (3):zootaxa.4221.3.1. . PubMed PMID:28187664 .
  8. Baba, K, Wicksten, MK. Uroptychus atlanticus, a new species of squat lobster (Crustacea: Decapoda: Anomura: Chirostylidae) from the western Atlantic Ocean. Zootaxa. 2017;4227 (2):zootaxa.4227.2.10. . PubMed PMID:28187590 .
  9. Baba, K, Wicksten, M. Uroptychus minutus Benedict, 1902 and a closely related new species (Crustacea: Anomura: Chirostylidae) from the western Atlantic Ocean. Zootaxa. 2015;3957 (2):215-25. . PubMed PMID:26249067 .
  10. Wicksten, MK, Nuttall, MF, Hickerson, EL. Crustaceans from antipatharians on banks of the northwestern Gulf of Mexico. Zookeys. 2014; (457):45-54. doi: 10.3897/zookeys.457.6280. PubMed PMID:25561830 PubMed Central PMC4283364.
  11. Wicksten, MK, Stachowicz, JJ. Mimulus Stimpson, 1860, a junior synonym of Pugettia Dana, 1851 (Decapoda: Brachyura: Majoidea: Epialtidae). Zootaxa. 2013;3693 :358-64. . PubMed PMID:26185854 .
  12. Wei, CL, Rowe, GT, Nunnally, CC, Wicksten, MK. Anthropogenic “Litter” and macrophyte detritus in the deep Northern Gulf of Mexico. Mar. Pollut. Bull. 2012;64 (5):966-73. doi: 10.1016/j.marpolbul.2012.02.015. PubMed PMID:22386802 .
  13. Wei, CL, Rowe, GT, Escobar-Briones, E, Boetius, A, Soltwedel, T, Caley, MJ et al.. Global patterns and predictions of seafloor biomass using random forests. PLoS ONE. 2010;5 (12):e15323. doi: 10.1371/journal.pone.0015323. PubMed PMID:21209928 PubMed Central PMC3012679.
  14. Wicksten, M. and C. Cox. 2011 (November). Invertebrates associated with gorgonians in the northern Gulf of Mexico. Marine Biodiversity Records 4: 1-9.
  15. Wicksten, M. 2008. Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces. Scripps Institution of Oceanography Library Paper 26: 1-413.
  16. Soliman, Y. and M. Wicksten. 2007. Ampleisca mississippiana: a new species (Crustacea: Amphipoda: Gammaridae) from the Mississippi Canyon (northern Gulf of Mexico). Zootaxa 1389: 45-54.
  17. Pequegnat, L. and M. Wicksten. 2006. Oplophorid shrimps (Decapoda: Caridea: Oplophoridae) in the Gulf of Mexico and Caribbean Sea from the collections of the research vessels Alaminos, Oregon and Oregon II. Crustacean Research 35: 92-107.
  18. Wicksten, M. and J. Packard. 2005. A qualitative zoogeographic analysis of decapod crustaceans of the continental slopes and abyssal plain of the Gulf of Mexico. Deep-Sea Research Part I 52 (2005): 1745-1765.