Calibration and evaluation of five indicators of benthic community condition in two California bay and estuary habitats

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Ranasinghe, J. A., Weisberg, S. B., Smith, R. W., Montagne, D. E., Thompson, B., Oakden, J. M., … Ritter, K. J. (2009). Calibration and evaluation of five indicators of benthic community condition in two California bay and estuary habitats. Marine Pollution Bulletin, 59(1), 5-13. doi:10.1016/j.marpolbul.2008.11.007
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TitleCalibration and evaluation of five indicators of benthic community condition in two California bay and estuary habitats
AuthorsJ. Ranasinghe, S. Weisberg, R. Smith, D. Montagne, B. Thompson, J. Oakden, D. Huff, D. Cadien, R. Velarde, K. Ritter
AbstractMany types of indices have been developed to assess benthic invertebrate community condition, but there have been few studies evaluating the relative performance of different index approaches. Here we calibrate and compare the performance of five indices: the Benthic Response Index (BRI), Benthic Quality Index (BQI), Relative Benthic Index (RBI), River Invertebrate Prediction and Classification System (RIVPACS), and the Index of Biotic Integrity (IBI). We also examine whether index performance improves when the different indices, which rely on measurement of different properties, are used in combination. The five indices were calibrated for two geographies using 238 samples from southern California marine bays and 125 samples from polyhaline San Francisco Bay. Index performance was evaluated by comparing index assessments of 35 sites to the best professional judgment of nine benthic experts. None of the individual indices performed as well as the average expert in ranking sample condition or evaluating whether benthic assemblages exhibited evidence of disturbance. However, several index combinations outperformed the average expert. When results from both habitats were combined, two four-index combinations and a three-index combination performed best. However, performance differences among several combinations were small enough that factors such as logistics can also become a consideration in index selection. © 2008 Elsevier Ltd. All rights reserved.
JournalMarine Pollution Bulletin
Date2009
Volume59
Issue1-3
Start page5
End page13
ISSN0025-326X
SubjectsBay and estuary benthos, Benthic community condition, Benthic index combinations, Benthic index performance comparison, San Francisco Bay, Southern California, Ocean habitats, Estuaries, benthos, environmental disturbance, estuarine ecosystem, habitat quality, Index of Biotic Integrity, article, benthic fauna, calibration, comparative study, controlled study, decision making, environmental monitoring, estuary, geography, habitat, marine environment, sea pollution, United States, animal, documentation, ecosystem, environmental protection, evaluation, invertebrate, methodology, physiology, reproducibility, standard, California, North America, Invertebrata, Umbellularia californica, Abstracting and Indexing as Topic, Animals, Conservation of Natural Resources, Invertebrates, Reproducibility of Results
NoteCited By (since 1996):15, Invertebrates, CODEN: MPNBA

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