tion. He replaces Jay Langfelder, who 

 is on leave from North Carolina State 

 University, to serve as assistant 

 secretary of the N. C. Department of 

 Natural Resources and Community 

 Development. 



If you're heading to 

 the beach, take along 

 UNC Sea Grant's "How 

 to" series. How to Hang 

 a Gill Net, written by 

 Jim Bahen and Mary 

 Day Mordecai, tells how 

 you can make a gill net, saving about 

 half the cost of one ready-made. 



How to use Eels as Bait, written 

 by Leon Abbas and Mary Day Mor- 

 decai, explains how to rig eels for boat 

 and pier fishing, bottom fishing, troll- 

 ing and freshwater fishing. It also 

 describes how to transport and care for 

 bait eels. 



How to Build a Crab Pot, written 

 by Kathy Hart, provides a step-by- 

 step description of putting together a 

 crab pot. The booklet also explains the 

 regulations governing the use of crab 

 pots for recreational fishing. 



For copies of these publications, 

 write UNC Sea Grant, P. O. Box 5001, 

 Raleigh, N.C. 27650-5001. All the 

 booklets are free. 



UNC Sea Grant re- 

 searcher Mark Sobsey 

 and his graduate stu- 

 dents at the University 

 of North Carolina at 

 Chapel Hill are continu- 

 ing to unfold the mys- 

 teries of contaminated shellfish. 



Under Sobsey's direction, Anne 

 Meinhold has taken a close look at the 

 elimination of poliovirus in con- 

 taminated oysters. She found that at 

 lower water temperatures — between 

 43 °F and 63 °F — poliovirus is elimi- 

 nated primarily through waste 

 elimination and pseudo-feces. Pseudo- 

 feces are particles the oyster draws in, 

 but rejects as unsuitable to eat. As the 

 thermometer rises, poliovirus, which is 

 susceptible to higher temperatures, is 

 made inactive by heat. 



Meinhold says that at the lower 

 temperatures the poliovirus is elimi- 

 nated slowly by the oysters, while at 

 the higher temperatures the elimina- 

 tion is much faster. 



While Sobsey and his students may 

 have learned a little more about polio- 

 virus, there are many other viruses 

 that can contaminate shellfish. Sobsey 

 says that next his laboratory will study 

 the elimination of bovine rotavirus, 

 which causes gastroenteritis. 



esign and Instal- 

 / \ lation of Low Pres- 



wM$MM$\ M sure Pipe Waste 

 L "I Treatment, written by 



vMMffl Craig Cogger, Bobby L. 



^™5P*jP' Carlile, Dennis Osborne 

 and Ed Holland, is a 

 manual designed for use by 

 sanitarians, contractors, architects and 

 engineers. The low pressure pipe 

 system (LPP) is a modified septic 

 system, created for use in soils not 

 suitable for on-site sewage disposal by 

 conventional septic systems. It was 

 developed in a Sea Grant research pro- 

 ject led by Carlile. 



The manual specifies the procedures 

 and materials to be used for the suc- 

 cessful siting, design, installation and 

 maintenance of residential LPP 

 systems. 



For a copy of the manual, write 

 UNC Sea Grant. Ask for publication 

 UNC-SG-82-03. The cost is $2.50. 



Note: The Southeastern On-Site 

 Wastewater Treatment Conference, 

 originally scheduled for April, has been 

 rescheduled for Sept. 28-30 at North 

 Carolina State University's McKim- 

 mon Center in Raleigh. For more in- 

 formation, write Dennis Osborne, 

 NCSU Department of Soil Science, 

 Box 5907, Raleigh, N.C. 27650. 



Project CAPE (Coast- 

 al Awareness in Public 

 Education), a marine 

 education project of the 

 Dare County Schools, 

 has two new publica- 

 tions available for edu- 



cators to purchase. Navigation intro- 

 duces fifth-and sixth-grade students to 

 the world of celestial navigation, to the 

 everyday lives of sixteenth-century 

 sailors, and to modern navigational 

 equipment. Wanchese Harbor — 

 Community Development is de- 

 signed for junior high social studies 

 and science students. The unit uses a 

 seafood industrial park as an example 

 of community planning and introduces 

 students to the business of commercial 

 Continued on next page 



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