ML20080F337

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Study of Woodborer Populations in Relation to Oyster Creek Generating Station, 33rd Quarterly Rept for 830421-0720
ML20080F337
Person / Time
Site: Oyster Creek
Issue date: 08/31/1983
From: Belmore C, Hillman R
BATTELLE NEW ENGLAND MARINE RESEARCH LABORATORY
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ML20080F322 List:
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NUDOCS 8309190270
Download: ML20080F337 (24)


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PROGRESS REPORT FOR THE THIRTY-THIRD QUARTER on STUDY OF WOODBORER POPULATIONS IN RELATION TO THE OYSTER CREEK GENERATING STATION To GPU NUCLEAR CORPORATION August 31,1983 by R.E. Hillman and C.I. Belmore REPORT NO.15194 April 21,1983 to July 20,1983 BATTELLE New England Marine Research Laboratory Duxbury, Massachusetts 02332 SJTe!!J84)h R

TABLE OF CONTENTS P_ age 1

E X E C UTIV E S U M M A RY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 IN T RO D U CT IO N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 P ROC E D U RES A N D INT ERIM D AT A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 E x pos ur e Pane ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Wat er Qualit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Teredinid Gonada! Development Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 LIST OF TABLES Table 1. Geographical Locations of Exposure Panel Arrays in 5

Barnegat Bay, New J ersey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Incidence of Teredinidae in Panels Removed May 2-3, 198 3 . . . . . . . . . . . 9 Table 2.

Incidence of Teredinidae in Paneli Removed June 6-7, 198 3 . . . . . . . . . . 10 Table 3.

Incidence of Teredinidae in Panels Removed July 5-6, 198 3 . . . . . . . . . . 11 Table 4.

Table 5. Incidence of Limnoria in Panels Removed May, June, and 12 July,1983 ....................................................

13 Table 6. Water Quality at Exposure Panel Stations, May 2-3, 198 3 . . . . . . . . . . . .

Water Quality at Exposure Panel Stations, June 6-7,1983 ........... 14 Table 7.

15 Table 8. Water Quality at Exposure Panel Stations, July 5-6, 198 3 . . . . . . . . . . . .

Table 9. Condition of Gonads of Teredinid Borers Removed from 16 Exposure Panels in Barnegat Bay from April through June,1983. . . . . . .

L5T OF FIGURES Figure 1. Outline of Barnegat Bay Showing Geographical Locations of 4

Exposure Panels ...............................................

1 EXECUTIVE

SUMMARY

This progress report presents data from field and laboratory work during the period April 21,1983 to July 21,1983.

All field work during this quarter was carried out by GPU Nuclear personnel.

Temperature, salinity, dissolved oxygen and pH were measured and recorded at each of the 20 stations during the three periods of exposure panel exchange.

Teredinidae were found in long-term exposure panels removed in May,1983 for the first time since this program was initiated in 1975. A total of 194 specimens were found at 5 of the 20 locations. All were 1 mm or less in length. No shipworms were found in short-term exposure panels, indicating that small pits in the panel were due to a late release of larvae in Novembcr,1982. All pits were either empty or contained small shells without any living material. Water temperatures must have dropped too soon for the larvae to survive and continue to bore into the panels.

Only two shipworms were found in the exposure panels examined in July,1982.

This year 123 shipworms were recorded from four sites. Since the longest specimen was 5 mm, it appears as if settlement started taking place the last week of June.

Limnoria attack continues to increase in 1983 as compared with 1982. Almost three times as many Limnoria tunnels were recorded from the exposure panels examined in May, June, and July,1983 as were recorded during the same period in 1982.

! All specimens examined for gonad condition during this quarterly report period were from panels that had been exposed for 12 months. For the most part, they were in the ripe to spent stage, although many appeared to have been in their preseat condition

! through the winter. One early active specimen was collected in June.

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2 PROGRESS REPORT FOR THE THIRTY-THIRD QUARTER on STUDY OF WOODBORER POPULATIONS IN RELATION TO THE OYSTER CREEK GENERATING STATION to GPU NUCLEAR CORPORATION August 31,1983 by Robert E. Hillman and C.I. Belmore REPORT NO.15194 April 21,1983 to July 20,1983 from BATTELLE New England Marine Research Laboratory Duxbury, Massachusetts 02332 INTRODUCTION Battelle's New England Marine Research Laboratory is conducting an l

investigation to determine whether the generating station is affecting the resident marine borer population in Oyster Creek to the extent that that population is contributing j

significantly to marine borer-caused damage in Barnegat Bay.

! A description of the program and procedures used may be found in the seventh annual report titled, " Study of Woodborer Populations in Relation to the Oyster Creek Generating Station", dated May 15,1983.

This report presents data for the thirty-th'rd quarterly period from April 21, 1983 to July 20, 1983.

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3 PROCEDURES ANDINTERIM DATA FWEe panels The long-term and short-term exposure panels were retrieved and replaced with new untreated pre-soaked (for two weeks) panels at the 20 exposure sites in Barnegat Bay and adjacent waters (Figure 1) during the periods of May 2-3, June 6-7, July 5-6,1983.

Long-term and short-term panels at all stations were retrieved and replaced by personnel from GPU's Oyster Creek Nuclear Generating Station.

Table 1 describes the geographical locations of the exposure sites. The data for the laboratory examination of the panels are presented in Tables 2 through 5.

Water Quality Salinity, water temperature, dissolved oxygen ano pH were taken at each site by the GPU Nuclear field team. The results for May, June, and July,1983 are presented in Tables 6 through 8.

Teredinid Gonadal Developnwnt Studies Table 9 shows the gonad condition of the teredinid borers collected in April, May, and June,1983. Included are results from panels exposed for periods ranging from 6 to 12 months.

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4 d MANASOUAN INLET BRIELLE a

% ASO POINT PLEASANT INTRACOASTAL ------ ~

WATERWAY CAN AL MANTOLOKING 15 KETTLE CREEK O

D o

)

^ 30 psd 16 SLOOP t

CREEK ATLANTIC OCEAN HOLLY PARK p d STOUTS CREEK to 108 [1 SEDGE '

ISLAND 1 3

($10A o 5$ OYSTE R 9

((CREEK OYSTER CREEK 7 6 BARNEGAT INLET 0

NUCLEAR GENERATING BARNEGAT 4A STATION CITY WARETOWN {

4 -

BARNEGAT BEACH f CONKLIN l

$ PANEL ARRAY ISLAND l

h 0 ', 2 3

' A f utLES E

l BARNEGAT INLET. NEW JERSEY Lat tude 39 45 8 N &[

Longitude 74 06 0 W [

I 2 '[.

FIGURE 1. OUTLINE OF BARNEGAT BAY SHOWING GEOGRAPHIC LOCATIONS OF EXPOSURE PANELS M

LABORATORY'S

TABLEI. GEOGRAPHICAL LOCATIONS OF BATTELLE NEW ENGLAND MARINE RESEARC
  • EXPOSURE PANEL ARRAYS IN BARNEGAT BAY, NEW 3ERSEY Structure to be used for Nearest Previous Approximate Latitude Data Stations and Longitude Site Suspension of Rack Site No.

Finger Pier WC1 Lat. 390 45.8'N

1. Barnegat Coast Guard WFCL 1948-1967 Long. 740 06.5'W Station, Barnegat inlet Bulkhead Bulkhead WC 13,14 Lat. 390 40'N i 2. Ashton Marina Long. 74013'W 1450 Bay Ave.

Manahawkin

' Bulkhead WC 16,17,18,19 Lat. 390 45'N

3. Iggie's Marina Lonog. 740 12.5'W East Bay Ave.

4 Barnegat (Conklin Island) ui i

Bulkhead WC 21 Lat. 390 47'N

4. Liberty Harbor Marina R. Turner Long.740 ll'W Washington Ave.

Rutgers U.

4 Waretown Bulkhead WC 21 Lat. 390 48'N 4- A * . Holiday Harbor Marina R. Turner Long. 74011'N Lighthouse Drive Waretown Rutgers U.

t Dock WC 29,30 Lat. 390 48.5'N

5. Mouth of Oyster Creek, Long. 740 10.3'W Rutgers U.

Lot 4, Compass Road Of fshore End i

Dock Lat. 390 43.5'N j 6. Oyster Creek #1 Long. 74010.35'W Lagoon, Inshore End 37 Capstan Drive i

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i TABLE 1. (Continued)

Structure to be used for Nearest Previous Approximate Latitude Site Suspension of Rack Data Stations and Longitude Site No.

7. Private Dock End of Dock WC 27,28 Lat. 390 48.5'N Dock Ave. R. Turner Long. 740 ll.I'W Rutgers U.

Oyster Creek Sands Pt. Harbor

- Waretown

8. Oyster Creek-R.R. Cross Member WC 26 Lat. 390 48.7'N Bridge Bridge Rutgers U. Long. 74012'W Discharge Canal
9. Forked River Cross Member WC 31 Lat. 390 49.2'N South Branch R.R. Bridge Intake Canal
10. Teds Marina Pier WC 33,34 Lat. 390 50.I'N Bay Ave. Long. 740 ll.6'W Forked River 10 A *. Private Dock Under Dock Lat. 390 49'N 1217 Aquarius Ct. Long. 74010'W Forked River i

10B*. Private Dock Under Dock Lat. 390 49.4'N 1307 Beach Blvd. Long. 74010.I'W Forked River

11. Forked River Bulkhead We 35 Lat. 390 49.7'N (near mouth) Rutgers U. Long. 740 10'W 1413 River View Drive d

TABLE 1. (Continued)

Structure to be used for Nearest Previous Approximate Latitude Site Suspension of Rack Data Stations and Longitude Site No.

12. Stouts Creek Bulkhead WC 38,40,41 Lat. 390 50.5'N 1273 Capstan Drive R. Turner Long. 740 08.8'W

- Wurtz Rutgers U.

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13. Rocknak's Yacht Basin End of Pier WC 46 Lat. 390 52'N Seaview Ave. Long. 740 09'W Lanoka Harbor Cedar Creek
14. Dicks Landing Pier WC 49 Lat. 390 54'W R. Turner Long. 740 08.l'W w

, Island Drive Bayville (Holly Park) Nelson

15. Winter Yacht Basin Inc. Pier WC 57 Lat. 400 02.5'N Rt.528 Long. 740 04.9'W Mantoloking Bridge
16. Berkely Yacht Basin Pier WC 60,61 Lat. 390 55.9'N
3. Street Long. 740 04.9'W Seaside 1

16A*. Municipal Deck Pier WC 60,61 Lat. 390 56.6'N Seaside Heights Long. 740 Ots.9'W 16B *. Bayside Boats Pi- WC 60,61 Lat. 390 56.6'N State Highway //35 and Long. 740 04.9'W i Bay Boulevard Seaside Heights, N3

TABLE 1. (Continued)

Structure to be used for Nearest Previous Approximate Latitude Site Suspension of Rack Data Stations and Longitude Site No.

Island Beach Pier WC 68 Lat. 390 47.l'N 17.

Long. 740 05.9'W State Park (Sedge Island)

All exposure panel racks suspended in a minimum wtter depth at mean low water of at least three feet. Racks hung with nylon line from existing structures so the bottom panels are close to, but not touching the bottom. Racks at Forked River railroad bridge and Oyster Creek railroad bridge suspended with wire rope.

WC = Woodward-Clyde to WFCL = William F. Clapp Laboratories

  • Site 4-A installed April,1977.

Sites 10A,10B installed April,1978.

Site 16 discontinued November,1981.

Site 16A installed December,1981 - discontinued June,1982.

Site 16B installed June,1982.

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TABLE 2. INCIDENCE OF TEREDINIDAE IN PANEL.S REMOVED MAY 2-3,1983 i

l No.of Percent Size Range Specimens Filled in mm. Species identification Remarks Station Panet P 167 <1 <1 167 Teredinidae* 90 empty pits, 1

77 with Teredinid shells C 0 P 20 < ! -l <1 20 Teredinidae* 15 empty pits,5 7

with Teredinid shells C 0 P <1 <1 1 Teredinidae* 1 empty pit 8 1 C 0 P 3 <1 <1 3 Teredinidae

  • 3 empty pits 9

C 0 P 3 <1 <1 3 Teredinidae

  • 3 empty pits 11 C 0 Stations 2-6,10-10B,12 No Teredinidae present.

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P = Long-term panel submerged November 1-2, 1982.

C = Short-term panel submerged April 5-6,1983.

  • = Not speciated due to size.

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10 TABLE 3. INCIDENCE OF TEREDINIDAE IN PANELS REMOVED JUNE 6-7,1983 No.of Percent Size Range Station Panel Specimens Filled in mm. Species identification Remarks Stations 1-17 no Teredinidae present.

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f TABLE 4. INCIDENCE OF TEREDINIDAE IN PANELS REMOVED JULY 5-6,1983 No.of Percent Size Range Station Panel Specimens Filled in m m. Species identification Remarks 1 P 5 <1 <1 5 Teredinidae*

C 26 <1 <1 26 Teredinidae*

11 P 8 <1 < l -5 1 Teredo spp,7 Teredinidae*

C 6 <1 < ! -2 6 Teredinidae*

13 P 0 C 13 <1 <l-1 13 Teredinidae*

14 P 28 <1 < ! -l 28 Teredinidae*

C 37 <1 < l-1 37 Teredinidae*

Stations 2-10B,12,15 No Teredinidae present.

P = Long-term panel submerged January 3-4,1983.

C = Short-term panel submerged June 6-7, 1983.

  • = Not speciated due to size.

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3 12 TABLE 5. INCIDENCE OF LIMNORIA IN PANELS REMOVED MAY, JUNE, AND JULY,1983 May June July No. of No. of No. of No. of No. of No. of Panel Tunnels Specimens Tunnels Specimens Tunnels Specimens Station 3 2 2 3* 2 0 1 P 0 0 1 2*

C 2 P 4 2 96 130* 670 800**

0 15 17 34 57*

C 3 P 0 1 2* 19 12 1 3 4 C 0 1 0 54 66* 54 80*

4 P 0 16 11 1 2*

C 21 10 2200 3504* 3500 6000**

4A P 8 3 900 1500* 990 1500*

C Stations 5-17, no Limnoria present.

P = Long-term panel, submerged 6 months.

C = Short-term panel, submerged 1 month.

  • = Gravid females present
    • = Gravid females and juveniles present l

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?.3 TABLE 6. WATER QUALITY AT EXPOSURE PANEL STATIONS MAY,1983 o

Depth in Salinity Temperature O2 Station Date Time Feet 0/00 (oC) (mg/0 pH 1 3/2/83 0950 4.5 19.8 15.0 8.2 8.1 2 5/2/83 1035 2.5 20.3 16.1 7.4 7.7 3 5/1/83 1120 0.5 19.1 17.2 7.6 7.7 4 5/2/83 1145 1.0 19.9 17.9 6.8 7.5 4A 5/2/83 1210 1.0 18.1 18.6 7.1 7.8 5 5/2/83 1310 0.5 13.9 18.2 7.7 7.7 6 5/2/83 1330 0.5 14.1 18.1 7.6 7.6 7 5/2/83 1352 0.5 14.2 18.6 7.3 7.5 8 5/2/83 1418 3.0 13.2 18.2 7.4 7.5 9 5/2/83 1448 4.5 13.9 19.0 7.7 7.8 10 5/3/83 1326 3.5 15.0 16.1 A.4 7.3 10A 5/2/83 1533 1.0 14.9 18.8 7.8 7.8 10B 5/2/83 1553 2.5 15.0 18.8 8.2 8.0 11 5/2/83 1615 0.8 15.6 18.1 8.2 7.9 12 5/3/83 1245 2.0 16.0 17.6 7.8 7.8 13 5/3/83 1212 2.0 12.1 18.5 7.6 8.2 14 5/3/83 1140 2.5 14.5 17.6 7.6 8.1 15 5/3/83 0912 3.0 10.2 17.3 7.6 7.6 16B 5/3/83 0950 4.0 10.9 16.9 8.3 8.0 17 5/3/83 1034 0.5 20.9 15.1 8.4 7.8 l

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14 TABLE 7. WATER QUALITY AT EXPOSURE PANEL STATIONS JUNE,1983 Depth in Salinity Temperature Feet 0/00 (oC) (m pH Station Date Time 0945 4.5 24.0 17.6 7.6 8.0 1 6/6/83 1.0 19.9 22.5 6.6 8.1 2 6/6/83 1040 1.0 17.6 22.7 6.2 7.9 3 6/6/83 1120 1.0 18.8 22.3 7.0 8.0 4 6/6/83 1145 1.2 18.5 23.0 6.6 7.9 4A 6/6/83 1210 1430 0.8 17.0 23.2 6.9 8.1 5 6/6/83 2.0 17.0 22.3 7.4 8.0 6 6/6/83 1445 0.5 4.9 23.7 6.1 7.0 7 6/6/83 1505 2.0 23.0 6.2 6.2 8 6/6/83 1405 3.5 13.9 23.6 6.3 7.3 9 6/6/83 1335 3.5 2.5 12.8 21.7 4.4 7.0 10 6/7/83 1425 16.2 23.0 6.4 8.0 10A 6/6/83 1545 1.0 2.0 16.0 23.0 6.5 8.0 10B 6/6/83 1604 0.7 11.8 24.6 6.4 7.9 11 6/7/83 1500 1.5 14.6 24.3 6.6 7.8 12 6/7/83 1355 2.0 11.8 24.0 5.4 7.3 13 6/7/83 1325 14.6 22.8 6.1 8.0 14 6/7/83 1215 2.5 11.2 21.7 7.0 7.5 15 6/7/83 0905 2.5 3.5 9.7 21.7 6.3 7.6 16B 6/7/83 0950 0.2 21.0 21.6 5.2 7.9 17 6/7/83 1040

15 TABLE 8. WATER QUALITY AT EXPOSURE PANEL STATIONS 3ULY,1983 Depth in Salinity Temperature O2 Time Feet ~oC)

( (mg71) pH Station Date 0/00 I 7/5/83 0912 3.5 24.1 22.8 6.1 7.7 2 7/5/83 0955 1.2 20.5 28.5 3.5 7.6 3 7/5/83 1042 1.2 19.9 29.2 4.2 7.4 4 7/5/83 1105 1.0 20.1 29.5 4.4 7.6 4A 7/5/8) 1124 1.5 19.9 29.5 5.6 7.9 5 7/5/83 1412 0.5 13.2 29.2 6.5 7.6 6 7/5/83 1425 1.2 15.2 28.7 6.3 7.7 7 7/5/83 1705 0.8 13.2 27.5 7.2 7.5 8 7/5/83 1326 3.5 18.0 27.8 4.6

  • 7.6 9 7/5/83 1345 3.5 14.8 29.5 6.8 7.7 10 7/5/83 1506 3.5 11.0 28.0 3.8 *
  • 6.4 *
  • 10A 7/5/83 1632 1.0 18.6 28.0 7.2 7.8 10B 7/5/83 1610 2.5 17.0 28.8 6.7 7.7

! 11*** 7/5/83 1600 1.0 15.0 28.8 5.6 7.4 12 7/5/83 1225 1.5 16.6 27.5 6.6 7.7 13 7/6/83 1200 2.0 12.5 27.5 5.6 7.0 14 7/6/83 1130 2.5 14.4 26.8 5.6 7.5 l

i 15 7/6/83 0850 3.0 15.9 25.6 4.5 7.2 16B 7/6/83' 0925 3.5 10.8 26.4 5.1 7.1 l

17 7/6/83 1015 0.5 23.5 26.3 3.2 7.8 i

  • Value may be too low, DO meter Eay have necoed to be recailbrated.
  • Readings erratic: pH and DO meters became slightly wet curing a heavy thundershower.-
      • Meters changed at Station 11.

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TABLE 9. CONDITION OF GONADS OF TEREDINID BORERS REMOVED FROM EXPOSURE PANELS IN BARNEGAT BAY FROM APRIL THROUGH JUNE,1983.

EA=Early active; LA= Late active; R= Ripe; PS= Partially spawned; S= Spent; M= Male; F=Femab; H= Hermaphrodite Month No. Months Ganad Removed Exposed Species Sex Condition Comments Specimen No. Station Apr 83 12 Teredo navalis M PS Special panel 1219 a 17 Teredo navalis M PS b

c Teredo navalis H PS Teredo navalis M S 5 d

Teredo navalis No discernable gonad e

Teredo navalis No discernable gonad f

Teredo navalis M PS g

h Teredo navalis M S Apr 83 12 Teredo navalis M S Special panel 1220 a 11 b Teredo navalis F PS c Teredo navalis H S d Teredo navalis F PS e Teredo navalis F S f Teredo navalis F PS I g Teredo navalis H S

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TABLE 9. (Continued)

Ganad Month No. Months Comments Exposed Species Sex Condition Specimen No. Station Removed Teredo navalis F PS h

Teredo navalis F R i

Teredo navalis F R

! j Teredo navalis F R k

Special panel; no Apr 83 12 Bankia gouldi 1221 a 11 discernable gonad w

Bankia gouldi M S b

i Bankia gouldi M S Special panel 1222 a lie May 83 12 Bankia gouldi M S b

Bankia gouldi No discernable gonad i

c Teredo navalis M S Special panel l1 May 83 12 1223 a No discernable gonad b

Teredo navalis Teredo navalis M PS c

Teredo navalis F PS d

Teredo navalis F PS e

Teredo navalis F PS f

Bankia gouldi Special panel; no 7 May 83 12 discernable gonad i

122te

TABLE 9. (Continued)

Month No. Months Ganad Removed Expose Species Sex Condition Comments Specimen No. Station May 83 12 Bankia gouldi M S Special panel 1225 13 May 83 12 T_eredo navalis H S Special panel 1226 a 15 b Teredo navalis H S May 83 12 Bankia gouldi M S Special panel 1227 a 10A Bankia gouldi No discernable gonad b

12 May 83 12 Bankia gouldi M S Special panel 1228 o>

May 83 12 Teredo navalis H S Special panel I 1229 a 17 1

b Teredo navalis F PS c Teredo navalis M S l Teredo navalis M PS d

f e Teredo navalis M EA f Teredo navalis M S Teredo navalis H PS g

Teredo navalis M PS h

i i Teredo navalis H PS Teredo navalis M PS j

Teredo navalis H PS .

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TABLE 9. (Continued)

Month No. Months Ganad Exposed Species Sex Condition Comments Specimen No. Station Removed i

Teredo navalis M PS i

Teredo navalis M PS m

Teredo navalis F PS n

Teredo navalis M PS o

Teredo navalis F PS p

Teredo navalis M PS q

  • Teredo navalis F PS r

l Teredo navalis M S s

Teredo navalis Special panel; no 1230 7 MAY 83 12 discernable gonad i

' Teredo navalis F S Special panel 1231 a 1 MAY 83 12 b Teredo navalis F PS c Teredo navalis H S d Teredo navalis M LA Teredo navalis M S e

f Teredo navalis H LA Teredo navalis H PS g ,

h Teredo navalis F S

TABLE 9. (Continued)

No. Months Ganad Month Canditiai Comments Exposed Species Sex Specimen No. Station Removed Teredo navalis M PS i

i Teredo navalis F R j

Teredo navalis H S k

Teredo navalis H S I

Teredo navalis H PS m

Teredo navalis M PS n o Teredo navalis H S o'

Teredo navalis H S p

Teredo navalis H S q

Teredo navalis F EA Special panel May 83 12 1232 a 11 No discernable gonad b

Teredo navalis Teredo navalis F EA c

Teredo navalis H S Special panel May 83 12 1233 a 11 Teredo navalis M S i

b Teredo navalis M S c

Teredo navalis F PS d

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' TABLE 9. (Continued) i Month No. Months Gonad Exposed Species Sex Condition Comments Specimen No. Station Removed e Teredo navalis M PS t

f Teredo navalis M PS g Teredo navalis M PS h Teredo navalis M PS i Teredo navalis M PS 13 Jun 83 12 Bankia gouldi F PS Special panel 1234 1235 14 Jun 83 12 Bankia gouldi Special panel; no U discernable gonad 15 Jun 83 12 Bank.ia gouldi M PS Special panel 1236 l

15 Jun 83 12 Teredo navalis F S Special panel 3

1237 i Special panel 1238 a 7 Jun 83 12 Teredo navalis M EA j

b Teredo navalis M EA a

c Teredo navalis - M EA 10B Jun 83 12 Bankia gouldi M PS Special panel 1239 ,

! 1240 a 1 Jun 83 12 Teredo navalis F S Special panel

! b Teredo navalis F R c Teredo navalis M S 10A Jun 83 12 Teredo navalis F S SPecial panel -

1241

TABLE 9. (Continued)

Gonad Month No. Months Comments Exposed Species Sex Condition Specimen No. Station Removed Teredo navalis F S Special panel 11 Jun 83 12 1242 Bankia gouldi F S Special panel 11 Jun 83 12 1243 a Bankia gouldi M PS b

Bankia gouldi M PS c

Teredo navalis M S Special panel 17 Jun 83 12 1244 a Teredo navalis F R y b

Teredo navalis F R c

Teredo navalis M PS d

Teredo navalis F LA e

Teredo navalis F LA f

l Teredo navalis M PS gl Teredo navalis F R Necrotic g2 Teredo navalis F R Necrotic g3 Bankia gouldi M PS Special panel 11 Jun 83 12 1245 i

Teredo navalis F LA Special panel 1246 a 11 Jun 83 12 Teredo navalis F PS b

Teredo navalis M S .

I c Teredo navalis H S d

.W.--

S