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Two New Diosaccids (Copepoda, Harpacticoida) from the Northern Gulf of Mexico and Their Responses to Winter Storms

The traditional method for producing taxonomic illustrations requires the preparation of inked copies of pencil originals. These individual figures are then grouped into plates for publication. I describe an alternative, computer-based approach. In a preliminary step, a pencil drawing is digitized and imported into an illustration program. The program's tools are then used to trace the image. Each figure is stored as a separate computer file. To make a plate for publication or a slide for presentation, several figures can be combined. The approach has several advantages. (1) It is easier to master than the pen-and-ink method. (2) Figures can be manipulated electronically, so the size and orientation of a figure is infinitely adjustable, providing great flexibility in the preparation of plates. (3) Multiple "originals" can be printed. (4) Mistakes can be corrected easily. I describe two new species of Diosaccidae (Harpacticoida, Copepoda) from an unvegetated sand at 18 m depth in the northern Gulf of Mexico. One is assigned to the genus Protopsammotopa; the other is assigned to Actopsyllus, and traits in common with Eoschizopera Wells & Rao (1976) are noted. I used the computer-based techniques to produce the figures for these descriptions. The effects of winter storms on the two new diosaccids described here were studied through a reanalysis of data from Thistle et al. (1995a). I found that Actopsyllus sp. nov. did not migrate downward in response to erosive flow. Protopsammotopa sp. nov. males, but not females, did. Protopsammotopa sp. nov. is found at shallower depths in the sediment than Actopsyllus sp. nov., which may explain the difference in response to erosion by two morphologically similar and phylogenetically related species. / A Dissertation submitted to the Department of Oceanography in partial fulfillment of the requirements for the degree of Doctor of Philosophy. / Fall Semester, 2003. / September 3, 2003. / Taxonomy, Benthos, Harpacticoids, Meiofauna, Storms / Includes bibliographical references. / David Thistle, Professor Directing Dissertation; William Herrnkind, Outside Committee Member; Richard Iverson, Committee Member; William Landing, Committee Member; Nancy Marcus, Committee Member.

Identiferoai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_181786
ContributorsBouck, Lori (authoraut), Thistle, David (professor directing dissertation), Herrnkind, William (outside committee member), Iverson, Richard (committee member), Landing, William (committee member), Marcus, Nancy (committee member), Department of Earth, Ocean and Atmospheric Sciences (degree granting department), Florida State University (degree granting institution)
PublisherFlorida State University, Florida State University
Source SetsFlorida State University
LanguageEnglish, English
Detected LanguageEnglish
TypeText, text
Format1 online resource, computer, application/pdf
RightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them.

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