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Author Contains ("Helm, W.T.")
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PB-83-256727
Defining stream fish microhabitat requirements for water project planning. Final report
Helm, W.T.
1982 Nov 01
-
BMI--171-104;
FRESHWATER VERTEBRATE AND INVERTEBRATE ECOLOGY OF AMCHITKA ISLAND. Annual Progress Report, August 30, 1967--June 30, 1968.
Neuhold, J.M.
;
Helm, W.T.
1968 Jan 01
Y
BMI--171-148;
Freshwater vertebrate and invertebrate ecology of Amchitka Island. Amchitka Bioenvironmental Program. Annual progress report, July 1, 1971--June 30, 1972
Helm, W.T.
;
Valdez, R.A.
1973 Apr 01
Y
BMI--171-127;
FRESHWATER VERTEBRATE AND INVERTEBRATE ECOLOGY OF AMCHITKA ISLAND. AMCHITKA BIOENVIRONMENTAL PROGRAM. Annual Progress Report, July 1, 1968--June 30, 1969.
Neuhold, J.M.
;
Helm, W.T.
1970 Jan 01
Y
BMI--171-133;
FRESHWATER VERTEBRATE AND INVERTEBRATE ECOLOGY OF AMCHITKA ISLAND. Amchitka Bioenvironmental Program. Annual Progress Report, July 1, 1969--June 30, 1970.
Neuhold, J.M.
;
Helm, W.T.
1971 Jan 01
Y
4700555
ECOLOGY OF THREESPINE STICKLEBACK GASTEROSTEUS ACULEATUS LINNAEUS ON AMCHITKA ISLAND, ALASKA.
Valdez, R.A.
;
Helm, W.T.
1971 Jan 01
-
4700556
FRESHWATER FOOD HABITS OF SALVELINUS MALMA (WALBAUM) ON AMCHITKA ISLAND, ALASKA.
Palmisano, J.J.
;
Helm, W.T.
1971 Jan 01
-
CONF-670503--
ACCUMULATION OF $sup 226$Ra IN TWO AQUATIC ECOSYSTEMS.
Martin, S.S.
;
Helm, W.T.
;
Sigler, W.F.
-
BMI--171-142;
FRESHWATER VERTEBRATE AND INVERTEBRATE ECOLOGY OF AMCHITKA ISLAND. Amchitka Bioenvironmental Program. Annual Progress Report, July 1, 1970--June 30, 1971.
Neuhold, J.M.
;
Helm, W.T.
;
Valdez, R.A.
1971 Jan 01
Y
BMI--171-154;
Freshwater vertebrate and invertebrate ecology of Amchitka Island, Alaska. Final summary report and progress report, July 1, 1972--September 30, 1973. Amchitka bioenvironmental program
Neuhold, J.M.
;
Helm, W.T.
;
Valdez, R.A.
Y
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