Pink shrimp Farfantepenaeus duorarum spatiotemporal abundance trends along an urban, subtropical shoreline slated for restoration

摘要: The Biscayne Bay Coastal Wetlands (BBCW) project of the Comprehensive Everglades Restoration Plan (CERP) aims to reduce point-source freshwater discharges and spread flow along mainland shoreline southern Bay. These actions will be taken approximate conditions in coastal wetlands bay that existed prior construction canals water control structures. An increase pink shrimp (Farfantepenaeus duorarum) density ≥ 2 individuals m-2 during wet season (i.e., August-October) was previously proposed as an indication BBCW success. This study examined pre-BBCW baseline densities compared them with target. Densities were monitored by seasonal (wet, dry) throw-trapping (1 m2 replicated triplicate) at 47 sites ~22 km southwestern coastline over 10 years (2007-2016). varied across most often higher dry seasons. Quantile regression revealed limitation four habitat attributes: temperature (°C), depth (m), salinity (ppt), submerged aquatic vegetation (SAV: % cover). Procrustean analyses tested for concordance between spatial temporal distributions metrics found temperature, depth, explained ~ 28%, 22% variability, respectively. No significant relationship SAV observed. Hierarchical clustering used identify spatially temporally similar groupings or season-years. Significant then investigated respect potentially limiting attributes. Six site year-season clusters identified. Although attributes significantly differed among clusters, within-cluster median did not correlate minima, maxima, medians, standard deviations Overall, ([Formula: see text] = 0.86, SD 1.32 m-2) lower (t(α 0.10,2),939 -26.53, P <0.0001) than CERP Interim Goal Pink corresponded appeared limited < ~18 ppt. Salinity is environmental attribute directly influenced implementation.