Search Results - "Velarde, Ronald G"

Effect of ecological group classification schemes on performance of the AMBI benthic index in US coastal waters by Gillett, David J., Weisberg, Stephan B., Grayson, Treda, Hamilton, Anna, Hansen, Virginia, Leppo, Erik W., Pelletier, Marguerite C., Borja, Angel, Cadien, Donald, Dauer, Daniel, Diaz, Robert, Dutch, Margaret, Hyland, Jeffrey L., Kellogg, Michael, Larsen, Peter F., Levinton, Jeffrey S., Llansó, Roberto, Lovell, Lawrence L., Montagna, Paul A., Pasko, Dean, Phillips, Charles A., Rakocinski, Chet, Ranasinghe, J. Ananda, Sanger, Denise M., Teixeira, Heliana, Dolah, Robert F. Van, Velarde, Ronald G., Welch, Kathy I.

“…The AZTI Marine Biotic Index (AMBI) requires less geographically-specific calibration than other benthic indices, but has not performed as well in US coastal…”
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Detecting, sourcing, and age-dating dredged sediments on the open shelf, southern California, using dead mollusk shells by Bizjack, Matthew T., Kidwell, Susan M., Velarde, Ronald G., Leonard-Pingel, Jill, Tomašových, Adam

“…Molluscan shell debris is an under-exploited means of detecting, sourcing, and age-dating dredged sediments in open-shelf settings. Backscatter features on the…”
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Calibration and validation of the AZTI's Marine Biotic Index (AMBI) for Southern California marine bays by Teixeira, Heliana, Weisberg, Stephen B., Borja, Angel, Ranasinghe, J. Ananda, Cadien, Donald B., Velarde, Ronald G., Lovell, Lawrence L., Pasko, Dean, Phillips, Charles A., Montagne, David E., Ritter, Kerry J., Salas, Fuensanta, Marques, João C.

“…► AMBI was validated for Southern California's marine bays with 80% success. ► Using local expertise for species ecological classification enhanced…”
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Assessing coastal benthic macrofauna community condition using best professional judgement – Developing consensus across North America and Europe by Teixeira, Heliana, Borja, Ángel, Weisberg, Stephen B., Ananda Ranasinghe, J., Cadien, Donald B., Dauer, Daniel M., Dauvin, Jean-Claude, Degraer, Steven, Diaz, Robert J., Grémare, Antoine, Karakassis, Ioannis, Llansó, Roberto J., Lovell, Lawrence L., Marques, João C., Montagne, David E., Occhipinti-Ambrogi, Anna, Rosenberg, Rutger, Sardá, Rafael, Schaffner, Linda C., Velarde, Ronald G.

“…Benthic indices are typically developed independently by habitat, making their incorporation into large geographic scale assessments potentially problematic…”
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Calibration and evaluation of five indicators of benthic community condition in two California bay and estuary habitats by Ranasinghe, J. Ananda, Weisberg, Stephen B., Smith, Robert W., Montagne, David E., Thompson, Bruce, Oakden, James M., Huff, David D., Cadien, Donald B., Velarde, Ronald G., Ritter, Kerry J.

“…Many types of indices have been developed to assess benthic invertebrate community condition, but there have been few studies evaluating the relative…”
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Benthic macrofaunal community condition in the Southern California Bight, 1994–2003 by Ranasinghe, J. Ananda, Schiff, Kenneth C., Montagne, David E., Mikel, Tim K., Cadien, Donald B., Velarde, Ronald G., Brantley, Cheryl A.

“…To assess benthic macrofaunal community condition in Southern California, 838 sites were sampled using spatially random designs in 1994, 1998, or 2003. Benthic…”
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Habitat-related benthic macrofaunal assemblages of bays and estuaries of the western United States by Ranasinghe, J Ananda, Welch, Kathy I, Slattery, Peter N, Montagne, David E, Huff, David D, Lee II, Henry, Hyland, Jeffrey L, Thompson, Bruce, Weisberg, Stephen B, Oakden, James M, Cadien, Donald B, Velarde, Ronald G

“…Data from 7 coastwide and regional benthic surveys were combined and used to assess the number and distribution of estuarine benthic macrofaunal assemblages of…”
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prevalence of non-indigenous species in southern California embayments and their effects on benthic macroinvertebrate communities by Ranasinghe, J.A, Mikel, T.K, Velarde, R.G, Weisberg, S.B, Montagne, D.E, Cadien, D.B, Dalkey, A

“…The prevalence of non-indigenous species (NIS) in southern California embayments was assessed from 123 Van Veen grab samples collected in nine bays and harbors…”
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Variability in the identification and enumeration of marine benthic invertebrate samples and its effect on benthic assessment measures by RANASINGHE, J. Ananda, MONTAGNE, David E, WEISBERG, Stephen B, BERGEN, Mary, VELARDE, Ronald G

“…Studies designed to measure anthropogenic impacts on marine benthic communities depend on the ability of taxonomists to consistently discriminate, identify,…”
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Assessment of benthic infaunal condition on the mainland shelf of Southern California by BERGEN, M, CADIEN, D, DALKEY, A, MONTAGNE, D. E, SMITH, R. W, STULL, J. K, VELARDE, R. G, WEISBERG, S. B

“…Benthic infauna were sampled from 251 Southern California Bight (SCB) mainland shelf sites in the summer of 1994. Sample sites were selected using a stratified…”
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The level of agreement among experts applying best professional judgment to assess the condition of benthic infaunal communities by Weisberg, Stephen B., Thompson, Bruce, Ranasinghe, J. Ananda, Montagne, David E., Cadien, Donald B., Dauer, Daniel M., Diener, Douglas, Oliver, John, Reish, Donald J., Velarde, Ronald G., Word, Jack Q.

“…Benthic infaunal communities are frequently used to assess aquatic environmental condition, but interpretation of benthic data is often subjective and based on…”
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Habitat-related benthic macrofaunal assemblages of bays and estuaries of the western United States by Ranasinghe, J Ananda, Welch, Kathy I, Slattery, Peter N, Montagne, David E, Huff, David D, Lee II, Henry, Hyland, Jeffrey L, Thompson, Bruce, Weisberg, Stephen B, Oakden, James M, Cadien, Donald B, Velarde, Ronald G

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Relationship between depth, sediment, latitude, and the structure of benthic infaunal assemblages on the mainland shelf of southern California by BERGEN, Mary, WEISBERG, Stephen B, SMITH, Robert W, CADIEN, Donald B, DALKEY, Ann, MONTAGNE, David E, STULL, Janet K, VELARDE, Donald G, ANANDA RANASINGHE, J

“…A regional benthic survey was conducted in 1994, and the data were used to assess the relationship among three habitat factors (depth, sediment grain size, and…”
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