... Station, National Fisheries Research Center, US Fish and Wildlife Service, Star Route, Cook, ... more ... Station, National Fisheries Research Center, US Fish and Wildlife Service, Star Route, Cook, WA 98605, USA and Todd E. ~ o ... warm-bodied fishes with countercurrent vascular heat exchangers or fishes that can change thermal environments quickly (Rossi-Fanelli and Antonini ...
Summary In order to elucidate the cues for, and the biochemical mechanisms of, the transition to ... more Summary In order to elucidate the cues for, and the biochemical mechanisms of, the transition to ureogenesis in the gulf toadfish Opsanus beta, experiments on the effects of confinement/crowding were carried out. Confinement of toadfish to small volumes of water initiated a switch to nearly complete reliance on ureogenesis for nitrogen excretion within 24-48 h. Further experiments suggested that this
Page 1. Northern Squawfish, Ptychocheilus oregonensis, 0, Consumption Rate and Respiration Mode :... more Page 1. Northern Squawfish, Ptychocheilus oregonensis, 0, Consumption Rate and Respiration Mode : Effeds of Temperature and Body Size joseph j. Cech, Jr. Department of N'ild8ife and Fisheries Biology, University of California, Davis, CA 956 76, USA Daniel T. ~ast1eberr-y' ...
Transactions of the American Fisheries Society, 1992
... 1985). The California Department of Fish and Game (CDFG) captures 6,000-7,000 adult fish annu... more ... 1985). The California Department of Fish and Game (CDFG) captures 6,000-7,000 adult fish annually in drift gill nets and fyke traps during the species' spawning migration (mid-March to mid-June) in the Sacramento and San Joaquin rivers (Collins 1982; White 1986). ...
A brackish water ecotone of coastal bays and lakes, mangrove forests, salt marshes, tidal creeks,... more A brackish water ecotone of coastal bays and lakes, mangrove forests, salt marshes, tidal creeks, and upland hammocks separates Florida Bay, Biscayne Bay, and the Gulf of Mexico from the freshwater Everglades. The Everglades mangrove estuaries are characterized by salinity gradients that vary spatially with topography and vary seasonally and inter-annually with rainfall, tide, and freshwater flow from the Everglades.
Transactions of the American Fisheries Society, 1996
... JOSEPH J. CECH, JR., STEVEN D. BARTHOLOW,' PACIENCIA S. YOUNG, AND TODD E. HOPKINS2 Depa... more ... JOSEPH J. CECH, JR., STEVEN D. BARTHOLOW,' PACIENCIA S. YOUNG, AND TODD E. HOPKINS2 Department of Wildlife, Fish, and ... play a major role in hydromineral control in freshwater fish, especially by reducing branchial water per-meability (Wendelaar Bonga and Van ...
Marine and Freshwater Behaviour and Physiology, 1999
... Printed in Malaysia. NITROGEN METABOLISM AND EXCRETION IN AN INTERTIDAL POPULATION OF THE GUL... more ... Printed in Malaysia. NITROGEN METABOLISM AND EXCRETION IN AN INTERTIDAL POPULATION OF THE GULF TOADFISH (OPSANUS BETA) TODD E. HOPKINSa,???,CHRIS M. WOODa,b and PATRICK J. WALSHa'* aDivision ...
We estimated the energy utilized by developing embryos and larvae of yellowtail rockfish,Sebastes... more We estimated the energy utilized by developing embryos and larvae of yellowtail rockfish,Sebastes flavidus, by determining the routine metabolic rate of adult females throughout gestation and subtracting the mean metabolic rate of non-gestating fish. The pattern of maternal oxygen consumption during gestation was such that metabolic demands did not become significantly elevated until intra-ovarian embryos had hatched and larvae were
We used ultrasonic telemetry to examine movement patterns of 11 bat rays, Myliobatis californica,... more We used ultrasonic telemetry to examine movement patterns of 11 bat rays, Myliobatis californica, in Tomales Bay, California. Tomales Bay is long (20? km) and narrow (1.4? km), and is hydrographically separated into outer and inner bay regions. The outer bay (the ...
... American Fisheries Society, Bethesda, Maryland. Du PREEZ, HH, A. MCLACHLAN, ANDJ. F. K. MARIA... more ... American Fisheries Society, Bethesda, Maryland. Du PREEZ, HH, A. MCLACHLAN, ANDJ. F. K. MARIAS. 1988. ... SPRATT, JD 1989. The distribution and density of eelgrass, Zostera marina, in Tomales Bay, California. California Fish and Game 75:204-212. TALENT, LG 1985. ...
Canadian Journal of Fisheries and Aquatic Sciences, 1994
Northern squawfish, Ptychocheilus oregonensis, O sub (2) consumption rate and respiration model: ... more Northern squawfish, Ptychocheilus oregonensis, O sub (2) consumption rate and respiration model: Effects of temperature and body size. JJ Cech Jr, DT Castleberry, TE Hopkins, JH Petersen Canadian Journal of Fisheries and Aquatic Sciences 51:11, 8-12, 1994. ...
ABSTRACT: A 14 mo trawl survey was conducted at 8 study sites in Biscayne Bay, Florida, USA, to c... more ABSTRACT: A 14 mo trawl survey was conducted at 8 study sites in Biscayne Bay, Florida, USA, to compare the species composition and structure of juvenile fish assemblages found near the mouths of freshwater flood control canals with those in similar areas with relatively stable salinity regimes. Water temperature, salinity, dissolved oxygen and depth measurements were recorded during fish sampling and bottom vegetation was also quantified. The survey yielded a total of 38 134 individuals from 95 taxa. Fish species ...
... Station, National Fisheries Research Center, US Fish and Wildlife Service, Star Route, Cook, ... more ... Station, National Fisheries Research Center, US Fish and Wildlife Service, Star Route, Cook, WA 98605, USA and Todd E. ~ o ... warm-bodied fishes with countercurrent vascular heat exchangers or fishes that can change thermal environments quickly (Rossi-Fanelli and Antonini ...
Summary In order to elucidate the cues for, and the biochemical mechanisms of, the transition to ... more Summary In order to elucidate the cues for, and the biochemical mechanisms of, the transition to ureogenesis in the gulf toadfish Opsanus beta, experiments on the effects of confinement/crowding were carried out. Confinement of toadfish to small volumes of water initiated a switch to nearly complete reliance on ureogenesis for nitrogen excretion within 24-48 h. Further experiments suggested that this
Page 1. Northern Squawfish, Ptychocheilus oregonensis, 0, Consumption Rate and Respiration Mode :... more Page 1. Northern Squawfish, Ptychocheilus oregonensis, 0, Consumption Rate and Respiration Mode : Effeds of Temperature and Body Size joseph j. Cech, Jr. Department of N'ild8ife and Fisheries Biology, University of California, Davis, CA 956 76, USA Daniel T. ~ast1eberr-y' ...
Transactions of the American Fisheries Society, 1992
... 1985). The California Department of Fish and Game (CDFG) captures 6,000-7,000 adult fish annu... more ... 1985). The California Department of Fish and Game (CDFG) captures 6,000-7,000 adult fish annually in drift gill nets and fyke traps during the species' spawning migration (mid-March to mid-June) in the Sacramento and San Joaquin rivers (Collins 1982; White 1986). ...
A brackish water ecotone of coastal bays and lakes, mangrove forests, salt marshes, tidal creeks,... more A brackish water ecotone of coastal bays and lakes, mangrove forests, salt marshes, tidal creeks, and upland hammocks separates Florida Bay, Biscayne Bay, and the Gulf of Mexico from the freshwater Everglades. The Everglades mangrove estuaries are characterized by salinity gradients that vary spatially with topography and vary seasonally and inter-annually with rainfall, tide, and freshwater flow from the Everglades.
Transactions of the American Fisheries Society, 1996
... JOSEPH J. CECH, JR., STEVEN D. BARTHOLOW,' PACIENCIA S. YOUNG, AND TODD E. HOPKINS2 Depa... more ... JOSEPH J. CECH, JR., STEVEN D. BARTHOLOW,' PACIENCIA S. YOUNG, AND TODD E. HOPKINS2 Department of Wildlife, Fish, and ... play a major role in hydromineral control in freshwater fish, especially by reducing branchial water per-meability (Wendelaar Bonga and Van ...
Marine and Freshwater Behaviour and Physiology, 1999
... Printed in Malaysia. NITROGEN METABOLISM AND EXCRETION IN AN INTERTIDAL POPULATION OF THE GUL... more ... Printed in Malaysia. NITROGEN METABOLISM AND EXCRETION IN AN INTERTIDAL POPULATION OF THE GULF TOADFISH (OPSANUS BETA) TODD E. HOPKINSa,???,CHRIS M. WOODa,b and PATRICK J. WALSHa'* aDivision ...
We estimated the energy utilized by developing embryos and larvae of yellowtail rockfish,Sebastes... more We estimated the energy utilized by developing embryos and larvae of yellowtail rockfish,Sebastes flavidus, by determining the routine metabolic rate of adult females throughout gestation and subtracting the mean metabolic rate of non-gestating fish. The pattern of maternal oxygen consumption during gestation was such that metabolic demands did not become significantly elevated until intra-ovarian embryos had hatched and larvae were
We used ultrasonic telemetry to examine movement patterns of 11 bat rays, Myliobatis californica,... more We used ultrasonic telemetry to examine movement patterns of 11 bat rays, Myliobatis californica, in Tomales Bay, California. Tomales Bay is long (20? km) and narrow (1.4? km), and is hydrographically separated into outer and inner bay regions. The outer bay (the ...
... American Fisheries Society, Bethesda, Maryland. Du PREEZ, HH, A. MCLACHLAN, ANDJ. F. K. MARIA... more ... American Fisheries Society, Bethesda, Maryland. Du PREEZ, HH, A. MCLACHLAN, ANDJ. F. K. MARIAS. 1988. ... SPRATT, JD 1989. The distribution and density of eelgrass, Zostera marina, in Tomales Bay, California. California Fish and Game 75:204-212. TALENT, LG 1985. ...
Canadian Journal of Fisheries and Aquatic Sciences, 1994
Northern squawfish, Ptychocheilus oregonensis, O sub (2) consumption rate and respiration model: ... more Northern squawfish, Ptychocheilus oregonensis, O sub (2) consumption rate and respiration model: Effects of temperature and body size. JJ Cech Jr, DT Castleberry, TE Hopkins, JH Petersen Canadian Journal of Fisheries and Aquatic Sciences 51:11, 8-12, 1994. ...
ABSTRACT: A 14 mo trawl survey was conducted at 8 study sites in Biscayne Bay, Florida, USA, to c... more ABSTRACT: A 14 mo trawl survey was conducted at 8 study sites in Biscayne Bay, Florida, USA, to compare the species composition and structure of juvenile fish assemblages found near the mouths of freshwater flood control canals with those in similar areas with relatively stable salinity regimes. Water temperature, salinity, dissolved oxygen and depth measurements were recorded during fish sampling and bottom vegetation was also quantified. The survey yielded a total of 38 134 individuals from 95 taxa. Fish species ...
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