Search Results - "BENFIELD, M. C"

Five in situ observations of live oarfish Regalecus glesne (Regalecidae) by remotely operated vehicles in the oceanic waters of the northern Gulf of Mexico by Benfield, M. C., Cook, S., Sharuga, S., Valentine, M. M.

“…As part of the SERPENT Project, five observations of apparently healthy oarfish Regalecus glesne by remotely operated vehicles are reported from the northern…”
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Trans-Atlantic responses of Calanus finmarchicus populations to basin-scale forcing associated with the North Atlantic oscillation by GREENE, C. H, PERSHING, A. J, MOUNTAIN, D, BENFIELD, M. C, WIEBE, P. H, DURBIN, E, CONVERSI, A, PLANQUE, B, HANNAH, C, SAMEOTO, D, HEAD, E, SMITH, P. C, REID, P. C, JOSSI, J

“…Populations of the copepod species Calanus finmarchicus often dominate the springtime biomass and secondary production of shelf ecosystems throughout the North…”
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In situ measurements of acoustic target strengths of gas-bearing siphonophores by Warren, J. D., Stanton, T. K., Benfield, M. C., Wiebe, P. H., Chu, D., Sutor, M.

“…Acoustic target strengths of free-swimming siphonophores were measured in situ at 24 and 120 kHz from a remotely operated vehicle equipped with both acoustic…”
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From the Hensen net toward four-dimensional biological oceanography by Wiebe, PH, Benfield, M C

“…The development of quantitative zooplankton collecting systems began with Hensen, 1887 and Hensen, 1895). Non-opening closing nets, opening closing nets…”
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Comparative Bioaccumulation Studies of Colloidally Complexed and Free-Ionic Heavy Metals in Juvenile Brown Shrimp Penaeus aztecus (Crustacea: Decapoda: Penaeidae) by Carvalho, Roberta A., Benfield, Mark C., Santschi, Peter H.

“…A large fraction of the trace metal pool in estuarine and coastal waters is complexed with colloidal-sized macromolecular organic matter. Bioaccumulation and…”
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Spatial and Temporal Variability in the Nearshore Distributions of Postlarval Farfantepenaeus aztecus along Galveston Island, Texas by Benfield, M.C., Downer, R.G.

“…The nearshore distributions of postlarval brown shrimp Farfantepenaeus aztecus (Ives, 1891) were investigated at four approximately equidistant sites along a…”
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Relative effects of turbidity and light intensity on reactive distance and feeding of an estuarine fish by BENFIELD, M. C, MINELLO, T. J

“…Gulf killifish Fundulus grandis were allowed to prey on daggerblade grass shrimp Palaemonetes pugio in clear water with bright light, turbid water containing…”
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Stable Isotope Indicators of Movement and Residency for Brown Shrimp (Farfantepenaeus aztecus) in Coastal Louisiana Marshscapes by Fry, Brian, Baltz, Donald M., Benfield, Mark C., Fleeger, John W., Gace, Arian, Haas, Heather L., Quiñones-Rivera, Zoraida J.

“…Brown shrimp (Farfantepenaeus aztecus) are an important commercial aquatic species experiencing loss of inshore marsh nursery habitat in coastal Louisiana. To…”
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Egg production rates and stage-specific development times of Clausocalanus furcatus (Copepoda, Calanoida) in the northern Gulf of Mexico by Bi, Hongsheng, Benfield, Mark C., Harris, R.P.

“…The calanoid copepod Clausocalanus furcatus is widely distributed in tropical and subtropical oceans, yet knowledge of its reproduction and development remains…”
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Comparison of multifrequency acoustic and in situ measurements of zooplankton abundances in Knight Inlet, British Columbia by TREVORROW, Mark V, MACKAS, David L, BENFIELD, Mark C

“…An investigation of midwater zooplankton aggregations in a coastal fjord was conducted in November 2002. This study focused on quantitative comparisons between…”
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On acoustic estimates of zooplankton biomass by Stanton, Timothy K., Wiebe, Peter H., Chu, Dezhang, Benfield, Mark C., Scanlon, Lori, Martin, Linda, Eastwood, Robert L.

“…Acoustic echo sounders have been used relatively successfully for several decades in the detection and possible classification of simple population (i.e…”
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BIOMAPER-II: an integrated instrument platform for coupled biological and physical measurements in coastal and oceanic regimes by Wiebe, P.H., Stanton, T.K., Greene, C.H., Benfield, M.C., Sosik, H.M., Austin, T.C., Warren, J.D., Hammar, T.

“…The BIo-Optical Multi-frequency Acoustical and Physical Environmental Recorder or BIOMAPER-II is a newly developed towed system capable of conducting…”
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Supply-Side Ecology and the Response of Zooplankton to Climate-Driven Changes in North Atlantic Ocean Circulation by GREENE, C. H., PERSHING, A. J., MONGER, B. C., BENFIELD, M. C., DURBIN, E. G., CASAS, M. C.

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High-frequency acoustic volume backscattering in the Georges Bank coastal region and its interpretation using scattering models by Wiebe, P.H., Stanton, T.K., Benfield, M.C., Mountain, D.G., Greene, C.H.

“…High-frequency (120 and 420 kHz) sound was used to survey sound scatterers in the water over Georges Bank. In addition to the biological sound scatterers (the…”
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Video Plankton Recorder estimates of copepod, pteropod and larvacean distributions from a stratified region of Georges Bank with comparative measurements from a MOCNESS sampler by Benfield, Mark C., Davis, Cabell S., Wiebe, Peter H., Gallager, Scott M., Gregory Lough, R., Copley, Nancy J.

“…A two-vessel exercise was conducted over the southern flank of Georges Bank during the onset of vernal stratification in May 1992. The Video Plankton Recorder…”
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RAPID: Research on Automated Plankton Identification by BENFIELD, MARK C., GROSJEAN, PHILIPPE, CULVERHOUSE, PHIL F., IRIGOIEN, XABIER, SIERACKI, MICHAEL E., LOPEZ-URRUTIA, ANGEL, DAM, HANS G., HU, QIAO, DAVIS, CABELL S., HANSEN, ALLEN, PILSKALN, CYNTHIA H., RISEMAN, EDWARD M., SCHULTZ, HOWARD, UTGOFF, PAUL E., GORSKY, GABRIEL

“…When Victor Hensen deployed the first true plankton super(1) net in 1887, he and his colleagues were attempting to answer three fundamental questions: What…”
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Estimating the spatial distribution of zooplankton biomass by combining Video Plankton Recorder and single-frequency acoustic data by Benfield, Mark C., Wiebe, Peter H., Stanton, Timothy K., Davis, Cabell S., Gallager, Scott M., Greene, Charles H.

“…Estimation of zooplankton biological parameters such as biomass distributions from single-frequency acoustic surveys of zooplankton is generally not possible…”
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Three-dimensional acoustic visualization of zooplankton patchiness by Greene, Charles H., Wiebe, Peter H., Pelkie, Chris, Benfield, Mark C., Popp, Jacqueline M.

“…Acoustic data were collected and visualized to characterize the 3-dimensional patchiness of zooplankton at a thermally stratified site on Georges Bank. The…”
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Growth and emigration of Penaeus indicus H. Milne-Edwards (Crustacea: Decapoda: Penaeidae) in the St. Lucia Estuary, southern Africa by Benfield, M C, Bosschieter, J R, bes, A T

“…Three cohorts of Penaeus indicus were sampled with a beam trawl at 6-week intervals over 2 years in the St. Lucia Lake system. Shrimp recruited to the system…”
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Effects of turbidity on feeding of southern flounder on estuarine prey by Minello, Thomas J., Benfield, Mark C.

“…Southern flounder Paralichthys lethostigma are predators on young brown shrimp Farfantepenaeus aztecus in turbid estuarine nurseries, and this predator-related…”
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