James H Johnson, PhD (Former Employee)
Science and Products
Data releases by this scientist
Publications by this scientist
Filter Total Items: 127
Examination of the influence of juvenile Atlantic salmon on the feeding mode of juvenile steelhead in Lake Ontario tributaries Examination of the influence of juvenile Atlantic salmon on the feeding mode of juvenile steelhead in Lake Ontario tributaries
We examined diets of 1204 allopatric and sympatric juvenile Atlantic salmon (Salmo salar) and steelhead (Oncorhynchus mykiss) in three tributaries of Lake Ontario. The diet composition of both species consisted primarily of ephemeropterans, trichopterans, and chironomids, although juvenile steelhead consumed more terrestrial invertebrates, especially at the sympatric sites. Subyearlings...
Authors
James H. Johnson, Emily M. Waldt
Avian influenza virus antibodies in Pacific Coast Red Knots (Calidris canutus rufa) Avian influenza virus antibodies in Pacific Coast Red Knots (Calidris canutus rufa)
Prevalence of avian influenza virus (AIV) antibodies in the western Atlantic subspecies of Red Knot (Calidris canutus rufa) is among the highest for any shorebird. To assess whether the frequency of detection of AIV antibodies is high for the species in general or restricted only to C. c. rufa, we sampled the northeastern Pacific Coast subspecies of Red Knot (Calidris canutus roselaari)...
Authors
James A. Johnson, Lucas H. DeCicco, Daniel R. Ruthrauff, Scott Krauss, Jeffrey S. Hall
Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus
Downstream drift of aquatic invertebrates is an important ecological process that varies temporally. Seasonal patterns of diel drift and diel feeding periodicity during summer of the amphipod Gammarus pseudolimnaeus were examined in a small stream in central New York. Seasonal trends in drift were similar with peak drift occurring from 2000 to 0400 h. Very little drift occurred during...
Authors
James H. Johnson
Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries
The habitat use of subyearling Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) was examined in three tributaries of Lake Ontario. A total of 1781 habitat observations were made on Chinook salmon (698) and coho salmon (1083). During both spring and fall, subyearling coho salmon used pool habitat with abundant cover. During spring, principal component...
Authors
James H. Johnson
Double-crested Cormorant studies at Little Galloo Island, Lake Ontario in 2013: Diet composition, fish consumption and the efficacy of management activities in reducing fish predation Double-crested Cormorant studies at Little Galloo Island, Lake Ontario in 2013: Diet composition, fish consumption and the efficacy of management activities in reducing fish predation
For almost two decades Little Galloo Island (LGI) has supported a large colony of Double-crested Cormorants (Phalacrocorax auritus) in the eastern basin of Lake Ontario. Cormorant nest counts on the island since the early 1990's have averaged 4,297 per year. However, less than 2,000 pairs have nested on the island in three of the past five years. The highest count was reached in 1996...
Authors
James H. Johnson, Russ D. McCullough, Irene Mazzocchi
Diet composition and fish consumption of double-crested cormorants from three St. Lawrence River colonies in 2013 Diet composition and fish consumption of double-crested cormorants from three St. Lawrence River colonies in 2013
Double-crested Cormorants (Phalacrocorax auritus) were first observed nesting in the upper St. Lawrence River at Strachan Island in 1992. Cormorants now nest at a number of islands in the Thousand Islands section of the river. Griswold, McNair, and Strachan islands are among the largest colonies in the upper river. Until 2011, nest counts had remained relatively stable, ranging from 200...
Authors
James H. Johnson, James F. Farquhar, Irene M. Mazzocchi, Anne Bendig
Non-USGS Publications**
Johnson, J. H. and D. S. Dropkin. 1994. Biology of subyearling carp (Cyprinus carpio) in the Juniata River, Pennsylvania. Journal of the Pennsylvania Academy of Science 68:34-36.
Rottiers, D. V. and J. H. Johnson. 1993. Gastric evacuation rates of larval American shad by two species of cyprinids. Ecology of Freshwater Fish 2:147-151.
Johnson, J. H. and D. S. Dropkin. 1993. Diel variation in diet composition of a riverine fish community. Hydrobiologia 149-158.
Johnson, J. H. and D. S. Dropkin. 1992. Piscivory by the central stoneroller Campostoma anomalum (Osteichthyes: Cyprinidae). Journal of the Pennsylvania Academy of Science 66:90-91.
Johnson, J. H. and D. S. Dropkin. 1992. Predation on recently stocked American shad larvae in the Susquehanna River basin. North American Journal of Fisheries Management 12:504-508.
Johnson, J. H., D. S. Dropkin, and P. G. Shaffer. 1992. Habitat use by a headwater stream fish community in North Central Pennsylvania. Rivers 3:69-79.
Johnson, J. H., A. A. Nigro, and R. O. Temple. 1992. Evaluating enhancement of striped bass in the context of potential predation on anadromous salmonids in Coos Bay, Oregon. North American Journal of Fisheries Management 12:103-108.
Johnson, J. H. and D. S. Dropkin. 1991. Summer food habits of spotfin shiner, mimic shiner, and juvenile fallfish in the Susquehanna River. Journal Freshwater Ecology 6:35-42.
Sheppard, J. D. and J. H. Johnson. 1985. Probability-of-use for depth, velocity and substrate type by subyearling coho salmon and steelhead trout in Lake Ontario tributaries. North American Journal of Fisheries Management 5:277-282.
Marsh, J. H. and J. H. Johnson. 1985. The role Stevens Treaty tribes in the management of anadromous fish runs in the Columbia Basin. Fisheries 10:2-5.
Johnson, J. H. and P. A. Kucera. 1985. Summer-autumn habitat utilization of sub-yearling steelhead trout in tributaries of the Clearwater River, Idaho. Canadian Journal of Zoology 63:2283-2290.
Johnson, J. H. 1985. Diel feeding ecology of the nymphs of Aeshna multicolor and Lestes unquiculatus (Odonata). Freshwater Biology 15:749-755.
Johnson, J. H. 1985. Comparative diets of Paiute sculpin, speckled dace, and subyearling steelhead trout in tributaries of the Clearwater River, Idaho. Northwest Science 59:1-9.
Johnson, J. H. and E. Z. Johnson. 1984. Comparative diets of subyearling redbreast sunfish and northern redbelly dace in an Adirondack Lake. Journal of Freshwater Ecology 2:587-591.
Johnson, J. H. 1983. Summer diet of juvenile fishes in the St. Lawrence River. New York Fish and Game Journal 30:91-99.
Johnson, J. H. 1983. Food habits of recently stocked subyearling Chinook salmon (Oncorhynchus tshawytscha) in Lake Ontario. New York Fish and Game Journal 30:115-116.
Johnson, J. H. 1983. Diel food habits of two species of setipalpian stoneflies (Plecoptera) in tributaries of the Clearwater River, Idaho. Freshwater Biology 13:105-111.
Ringler, N. H. and J. H. Johnson. 1982. Diet composition and diel feeding periodicity of some fishes in the St. Lawrence River. New York Fish and Game Journal 29:65-74.
Johnson, J. H. and E. Z. Johnson. 1982. Observations on the eye-picking behavior of the cutlips minnow, Exoglossum maxillinqua. Copeia 1982:711-712.
Johnson, J. H. and E. Z. Johnson. 1982. Diel foraging in relation to available food in an Adirondack Mountain stream fish community. Hydrobiologia 96:97-104.
Johnson, J. H. 1982. Summer feeding ecology of blacknose dace, Rhinichthys atratulus, in a tributary of Lake Ontario. Canadian Field-Naturalist 96:282-286.
Johnson, J. H. 1982. Diet composition and prey selection of Cordulegaster maculata Sel. Larvae (Anisoptera: Cordulegasteridae). Notulae Odonatologicae 1:151-152.
Johnson, J. H. 1982. Comparative diets of planted rainbow trout (Salmo gairdneri) and speckled dace (Rhinichthys osculus) in a prairie impoundment in North Central Idaho. Proceedings West. Assoc. Fish and Wildlife Agencies 62:611-618.
Johnson, J. H. 1981. The summer diet of the cutlips minnow, Exoglossum maxillinqua, in a central New York stream. Copeia 1981:484-487.
Johnson, J. H. 1981. Predation on the eggs of steelhead trout by stream salmonids in a tributary of Lake Ontario. Progressive Fish-Culturist 43:36-37.
Johnson, J. H. 1981. Food interrelationships of coexisting brook, brown, and yearling rainbow trout in tributaries of the Salmon River, New York. New York Fish and Game Journal 28:88-99.
Johnson, J. H. 1981. Comparative food selection of subyearling coho salmon, Chinook salmon, and rainbow trout in a tributary of Lake Ontario. New York Fish and Game Journal 28:150-161.
Johnson, J. H. 1981. Food habits and dietary overlap of perlid stoneflies (Plecoptera) in a tributary of Lake Ontario. Canadian Journal of Zoology 59:2030-2037.
Johnson, J. H. and E. Z. Johnson. 1981. Feeding periodicity and diel variation in diet composition of subyearling coho salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri) in a small stream during summer. Fisheries Bulletin, U.S. 79:370-376.
Johnson, J. H. and N. H. Ringler. 1981. Predation on immature midges (Diptera: Chironomidae) by recently emerged coho salmon Oncorhynchus kisutch). New York Fish and Game Journal 28:121.
Johnson, J. H. and N. H. Ringler. 1981. Natural hybridization of coho salmon (Oncorhynchus kisutch) and Chinook salmon (O. tshawytscha) with notes on meristic variation. Copeia 1981:720-721.
Johnson, J. H. and N. H. Ringler. 1981. Natural reproduction and juvenile ecology of Pacific salmon and rainbow trout in tributaries of the Salmon River, New York. New York Fish and Game Journal 28:49-60.
Johnson, J. H. and N. H. Ringler. 1980. Diets of juvenile coho salmon Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri) relative to prey availability. Canadian Journal of Zoology 58:553-558.
Johnson, J. H. 1980. Production and growth of subyearling coho salmon (Oncorhynchus kisutch), Chinook salmon (O. tshawytscha) and steelhead (Salmo gairdneri) in Orwell brook, tributary of the Salmon River, New York. Fisheries Bulletin, U.S. 78:549-554.
Johnson, J. H. and N. H. Ringler. 1979. The occurrence of blow-fly larvae (Diptera: Calliphoridae) on salmon carcasses and their utilization as food by juvenile salmon and trout. Great Lakes Entomologist 12:137-140.
Johnson, J. H. and N. H. Ringler. 1979. Predation on Pacific salmon eggs by salmonids in a tributary of Lake Ontario. Journal of Great Lakes Research 5:177-181.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Data releases by this scientist
Publications by this scientist
Filter Total Items: 127
Examination of the influence of juvenile Atlantic salmon on the feeding mode of juvenile steelhead in Lake Ontario tributaries Examination of the influence of juvenile Atlantic salmon on the feeding mode of juvenile steelhead in Lake Ontario tributaries
We examined diets of 1204 allopatric and sympatric juvenile Atlantic salmon (Salmo salar) and steelhead (Oncorhynchus mykiss) in three tributaries of Lake Ontario. The diet composition of both species consisted primarily of ephemeropterans, trichopterans, and chironomids, although juvenile steelhead consumed more terrestrial invertebrates, especially at the sympatric sites. Subyearlings...
Authors
James H. Johnson, Emily M. Waldt
Avian influenza virus antibodies in Pacific Coast Red Knots (Calidris canutus rufa) Avian influenza virus antibodies in Pacific Coast Red Knots (Calidris canutus rufa)
Prevalence of avian influenza virus (AIV) antibodies in the western Atlantic subspecies of Red Knot (Calidris canutus rufa) is among the highest for any shorebird. To assess whether the frequency of detection of AIV antibodies is high for the species in general or restricted only to C. c. rufa, we sampled the northeastern Pacific Coast subspecies of Red Knot (Calidris canutus roselaari)...
Authors
James A. Johnson, Lucas H. DeCicco, Daniel R. Ruthrauff, Scott Krauss, Jeffrey S. Hall
Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus
Downstream drift of aquatic invertebrates is an important ecological process that varies temporally. Seasonal patterns of diel drift and diel feeding periodicity during summer of the amphipod Gammarus pseudolimnaeus were examined in a small stream in central New York. Seasonal trends in drift were similar with peak drift occurring from 2000 to 0400 h. Very little drift occurred during...
Authors
James H. Johnson
Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries
The habitat use of subyearling Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) was examined in three tributaries of Lake Ontario. A total of 1781 habitat observations were made on Chinook salmon (698) and coho salmon (1083). During both spring and fall, subyearling coho salmon used pool habitat with abundant cover. During spring, principal component...
Authors
James H. Johnson
Double-crested Cormorant studies at Little Galloo Island, Lake Ontario in 2013: Diet composition, fish consumption and the efficacy of management activities in reducing fish predation Double-crested Cormorant studies at Little Galloo Island, Lake Ontario in 2013: Diet composition, fish consumption and the efficacy of management activities in reducing fish predation
For almost two decades Little Galloo Island (LGI) has supported a large colony of Double-crested Cormorants (Phalacrocorax auritus) in the eastern basin of Lake Ontario. Cormorant nest counts on the island since the early 1990's have averaged 4,297 per year. However, less than 2,000 pairs have nested on the island in three of the past five years. The highest count was reached in 1996...
Authors
James H. Johnson, Russ D. McCullough, Irene Mazzocchi
Diet composition and fish consumption of double-crested cormorants from three St. Lawrence River colonies in 2013 Diet composition and fish consumption of double-crested cormorants from three St. Lawrence River colonies in 2013
Double-crested Cormorants (Phalacrocorax auritus) were first observed nesting in the upper St. Lawrence River at Strachan Island in 1992. Cormorants now nest at a number of islands in the Thousand Islands section of the river. Griswold, McNair, and Strachan islands are among the largest colonies in the upper river. Until 2011, nest counts had remained relatively stable, ranging from 200...
Authors
James H. Johnson, James F. Farquhar, Irene M. Mazzocchi, Anne Bendig
Non-USGS Publications**
Johnson, J. H. and D. S. Dropkin. 1994. Biology of subyearling carp (Cyprinus carpio) in the Juniata River, Pennsylvania. Journal of the Pennsylvania Academy of Science 68:34-36.
Rottiers, D. V. and J. H. Johnson. 1993. Gastric evacuation rates of larval American shad by two species of cyprinids. Ecology of Freshwater Fish 2:147-151.
Johnson, J. H. and D. S. Dropkin. 1993. Diel variation in diet composition of a riverine fish community. Hydrobiologia 149-158.
Johnson, J. H. and D. S. Dropkin. 1992. Piscivory by the central stoneroller Campostoma anomalum (Osteichthyes: Cyprinidae). Journal of the Pennsylvania Academy of Science 66:90-91.
Johnson, J. H. and D. S. Dropkin. 1992. Predation on recently stocked American shad larvae in the Susquehanna River basin. North American Journal of Fisheries Management 12:504-508.
Johnson, J. H., D. S. Dropkin, and P. G. Shaffer. 1992. Habitat use by a headwater stream fish community in North Central Pennsylvania. Rivers 3:69-79.
Johnson, J. H., A. A. Nigro, and R. O. Temple. 1992. Evaluating enhancement of striped bass in the context of potential predation on anadromous salmonids in Coos Bay, Oregon. North American Journal of Fisheries Management 12:103-108.
Johnson, J. H. and D. S. Dropkin. 1991. Summer food habits of spotfin shiner, mimic shiner, and juvenile fallfish in the Susquehanna River. Journal Freshwater Ecology 6:35-42.
Sheppard, J. D. and J. H. Johnson. 1985. Probability-of-use for depth, velocity and substrate type by subyearling coho salmon and steelhead trout in Lake Ontario tributaries. North American Journal of Fisheries Management 5:277-282.
Marsh, J. H. and J. H. Johnson. 1985. The role Stevens Treaty tribes in the management of anadromous fish runs in the Columbia Basin. Fisheries 10:2-5.
Johnson, J. H. and P. A. Kucera. 1985. Summer-autumn habitat utilization of sub-yearling steelhead trout in tributaries of the Clearwater River, Idaho. Canadian Journal of Zoology 63:2283-2290.
Johnson, J. H. 1985. Diel feeding ecology of the nymphs of Aeshna multicolor and Lestes unquiculatus (Odonata). Freshwater Biology 15:749-755.
Johnson, J. H. 1985. Comparative diets of Paiute sculpin, speckled dace, and subyearling steelhead trout in tributaries of the Clearwater River, Idaho. Northwest Science 59:1-9.
Johnson, J. H. and E. Z. Johnson. 1984. Comparative diets of subyearling redbreast sunfish and northern redbelly dace in an Adirondack Lake. Journal of Freshwater Ecology 2:587-591.
Johnson, J. H. 1983. Summer diet of juvenile fishes in the St. Lawrence River. New York Fish and Game Journal 30:91-99.
Johnson, J. H. 1983. Food habits of recently stocked subyearling Chinook salmon (Oncorhynchus tshawytscha) in Lake Ontario. New York Fish and Game Journal 30:115-116.
Johnson, J. H. 1983. Diel food habits of two species of setipalpian stoneflies (Plecoptera) in tributaries of the Clearwater River, Idaho. Freshwater Biology 13:105-111.
Ringler, N. H. and J. H. Johnson. 1982. Diet composition and diel feeding periodicity of some fishes in the St. Lawrence River. New York Fish and Game Journal 29:65-74.
Johnson, J. H. and E. Z. Johnson. 1982. Observations on the eye-picking behavior of the cutlips minnow, Exoglossum maxillinqua. Copeia 1982:711-712.
Johnson, J. H. and E. Z. Johnson. 1982. Diel foraging in relation to available food in an Adirondack Mountain stream fish community. Hydrobiologia 96:97-104.
Johnson, J. H. 1982. Summer feeding ecology of blacknose dace, Rhinichthys atratulus, in a tributary of Lake Ontario. Canadian Field-Naturalist 96:282-286.
Johnson, J. H. 1982. Diet composition and prey selection of Cordulegaster maculata Sel. Larvae (Anisoptera: Cordulegasteridae). Notulae Odonatologicae 1:151-152.
Johnson, J. H. 1982. Comparative diets of planted rainbow trout (Salmo gairdneri) and speckled dace (Rhinichthys osculus) in a prairie impoundment in North Central Idaho. Proceedings West. Assoc. Fish and Wildlife Agencies 62:611-618.
Johnson, J. H. 1981. The summer diet of the cutlips minnow, Exoglossum maxillinqua, in a central New York stream. Copeia 1981:484-487.
Johnson, J. H. 1981. Predation on the eggs of steelhead trout by stream salmonids in a tributary of Lake Ontario. Progressive Fish-Culturist 43:36-37.
Johnson, J. H. 1981. Food interrelationships of coexisting brook, brown, and yearling rainbow trout in tributaries of the Salmon River, New York. New York Fish and Game Journal 28:88-99.
Johnson, J. H. 1981. Comparative food selection of subyearling coho salmon, Chinook salmon, and rainbow trout in a tributary of Lake Ontario. New York Fish and Game Journal 28:150-161.
Johnson, J. H. 1981. Food habits and dietary overlap of perlid stoneflies (Plecoptera) in a tributary of Lake Ontario. Canadian Journal of Zoology 59:2030-2037.
Johnson, J. H. and E. Z. Johnson. 1981. Feeding periodicity and diel variation in diet composition of subyearling coho salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri) in a small stream during summer. Fisheries Bulletin, U.S. 79:370-376.
Johnson, J. H. and N. H. Ringler. 1981. Predation on immature midges (Diptera: Chironomidae) by recently emerged coho salmon Oncorhynchus kisutch). New York Fish and Game Journal 28:121.
Johnson, J. H. and N. H. Ringler. 1981. Natural hybridization of coho salmon (Oncorhynchus kisutch) and Chinook salmon (O. tshawytscha) with notes on meristic variation. Copeia 1981:720-721.
Johnson, J. H. and N. H. Ringler. 1981. Natural reproduction and juvenile ecology of Pacific salmon and rainbow trout in tributaries of the Salmon River, New York. New York Fish and Game Journal 28:49-60.
Johnson, J. H. and N. H. Ringler. 1980. Diets of juvenile coho salmon Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri) relative to prey availability. Canadian Journal of Zoology 58:553-558.
Johnson, J. H. 1980. Production and growth of subyearling coho salmon (Oncorhynchus kisutch), Chinook salmon (O. tshawytscha) and steelhead (Salmo gairdneri) in Orwell brook, tributary of the Salmon River, New York. Fisheries Bulletin, U.S. 78:549-554.
Johnson, J. H. and N. H. Ringler. 1979. The occurrence of blow-fly larvae (Diptera: Calliphoridae) on salmon carcasses and their utilization as food by juvenile salmon and trout. Great Lakes Entomologist 12:137-140.
Johnson, J. H. and N. H. Ringler. 1979. Predation on Pacific salmon eggs by salmonids in a tributary of Lake Ontario. Journal of Great Lakes Research 5:177-181.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.