Abstract
AbstractQueenfish Seriphus politus were collected at coastal power plants from San Clemente to Ventura, California. Power functions best described relations between otolith length, width, or weight and either standard length (SL) or total body weight. The length–weight relationship was described by the following equation: weight = 10−5 × SL3.09. Individuals were aged to 12 years by using sagittal otolith sections. Females grew at a significantly faster rate than males. Both sexes reached 50% maturity by 100 mm SL, or shortly after age 1. The total annual instantaneous mortality coefficient was estimated at 0.42. Catalina Harbor (on the windward side of Santa Catalina Island) and Ventura were the most populous sites based on gill‐net catch per unit effort from 1995 to 2006. Juvenile and adult queenfish populations have declined since 1980 in a significant relationship with nearshore plankton biomass. Larval queenfish densities recorded in King Harbor (Redondo Beach) have declined since 1987. Long‐term recruitment estimates indicated peak recruitment prior to 1976, with three subsequent downward baseline shifts.
Highlights
Abstract.—Queenfish Seriphus politus were collected at coastal power plants from San Clemente to Ventura, California
FIGURE 1.—Locations of all gill-net, trawl, and larval sampling stations and power plant sampling sites from which queenfish were collected in southern California (OBGS 1⁄4 Ormond Beach Generating Station; ESGS 1⁄4 El Segundo Generating Station; RBGS 1⁄4 Redondo Beach Generating Station; KH Larvae 1⁄4 King Harbor larval sampling site; HBGS 1⁄4 Huntington Beach Generating Station; SONGS 1⁄4 San Onofre Nuclear Generating Station)
Weight, and width were best described by power functions, indicating an allometric relationship between otolith growth and somatic growth (Table 1)
Summary
Abstract.—Queenfish Seriphus politus were collected at coastal power plants from San Clemente to Ventura, California. Within southern California, queenfish Seriphus politus were frequently landed by shore anglers from 1995 to 2000 (Love 2006) and targeted by commercial fisherman, often commingled with white croakers Genyonemus lineatus in landings (Moore and Wild 2001) This frequency of occurrence in fishery landings (commercial and recreational) is consistent with their relatively high abundance in fishery-independent nearshore adult and larval fish surveys throughout southern California (Allen and DeMartini 1983; Barnett et al 1984; DeMartini and Allen 1984; Love et al 1984; Walker et al 1987; McGowen 1993; Pondella and Allen 2000). Despite their prevalence throughout the nearshore Southern California Bight, little life
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