ML19345G403
| ML19345G403 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/26/1981 |
| From: | Hayes P NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Swanberg F NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| References | |
| NUDOCS 8104070178 | |
| Download: ML19345G403 (4) | |
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UNITED STATES pa arGuq NUCLEAR REGULATORY COMMisslON 41 k
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MEMORANDUM FOR:
F. Swanberg, Jr., Chief N
Environmental Effects Research Branch s
2 Division of Safeguards, Fuel Cycle and Environmental Research FROM:
Paul F. Hayes Environmental Effects Research Branch Division of. Safeguards, Fuel Cycle and Environmental Research REVIEW 0F THE LEHIGH UNIVERSITY RESEARCH PROGRAM EFFECTS OF NUCLEAR POWER PLANT OPERATIONS ON BORIN
SUBJECT:
FOULING INVERTEBRATES Dr. K. E. Hoagland, Lehigh University, discussed with members On March 23, 1981 of the research review group the status of the RES supported contract with Lehigh University entitled, "The Effects of Nuclear Power Plant Operations to this on Populations of Boring and Fouling Invertebrates."
memorandum lists the attendees at the meeting.
Dr. Hoagland began the meeting by reviewing the history of the project and the Using a slide research results obtained prior to the current fiscal year.
presentation she described the physical location of the generating station, the location of the experimental and control stations, the basic experimental apparatus, and the impact of the bcring and fouling organisms on tn panels at various stations.
These results demonstrated that a large of the most recent monitoring effort.
number of Teredo_ bartschi had settled and grown in the panels in Oyster Creek The data shortly af ter the power plant resumed operation in October,1980.
accumulated during the entire project strongly support the conclusion that the operation of the Oyster Creek Generating Station is responsible for the oat-However, she breaks of T. bartschi in Oyster Creek, according to Dr. Hoa Teredo_ bartschi is capable of overwintering creeks adjacent tr Oyster Creek.
in Oyster Creek (even when the plant is not operating) and its opportunistic
- haracteristics allow it to exploit the resources in Oyster Cveek when the
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slant is operating.
Laboratory studies are currently being conducted to further refine the identifi for the three shipworte species found in the of the physiological tolerance limits These vicinity' of the plant; namely T. bartschi, L, navalis, and Bankh gouldi.
tests have not revealed any distinct temperature or salinity tolerance differences amcag the species, but do indict.te that Bankia gouldt may be stressed by t Also, T. bartschi becomes inactive summer temgeratures within the thermal plume.
in the 5-7 C range, but can survive at temperatures around 0"C.
In related work supported by the Fleischmann Foundation, Dr. Hoaglan t
ducting a study on shipworm genetics.
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s F. Swanberg, Jr. gR2619 the T. bartschi populations in Oyster Creek, Millstone, Connecticut, and Florida are all very similar, but gives little conclusive evidence of the sequence in which the populations have spread from Florida. Most interestingly, the genetic studies show that T.bartschi is much less polymorphic and has a much lower frequency of heterozygous alleles than other shipworm species. These genetic characteristics generally are un-expected in an opportunistic species like T. bartschi.
The regular monitoring work is planned to continue through FY 1982 at stations 1, 3, 4, 5, 6, 8,10,11,12,14, and 15 with stations 6 and 15 sampled on a reduced schedule. The possibility of adding an additional control station w6s discussed, because station 2 was lost due to problems with the property owners. Dr. Hoagland will investigate potential new sites comparable to station 2.
A number of laboratory experiments are scheduled for the remaining 18 months of the program. These include additional physiological tolerance experiments (particularly on factors affecting reproduction), settlement patterns and distribution potentials, and relatise destructiveness studies. Some histological work is also scheduled to investigate the reproductive behavior of T. bartschi.
Computerized r,nalysis of the fouling data is continuing and a more detailed computer-assisted analysis of the boring population data is getting underway.
Dr. Hoagland believes that monitt. ring of the shipworm populations in the vicinity of Oyster Creek should be continued, but on a reduced schedule, to maintain the continuity of the data especially in light of the possibility of construction of the Forked River Generating Station nearby. Dr. Hoagland was informed that the review group mem.'ers generally were opposed to funding this project past FY 1982.
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N Paul F. Hayes Environmental Effects Research Branch Division of Safeguards, Fuel Cycle and Environmental Research
Enclosure:
List of Attendees I
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R. Ba11 erd C. Billup; T. Cain C. Hickey l-M. Masnik R. Samworth D. Sca11etti
. L. Cohen R. Grill E. Conti l
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9 ENCLOSURE 1 I
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1 Lehigh University A
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I P. Hayes, RES i:
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