. Bulletin - Southern California Academy of Sciences. Science. 174 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 1 LU 3 CL O "CD O) 0 JQ 1 0 _> CO Legal CPUE Fig. 7. Scatterplot and linear regression comparing the sublegal and legal lobster CPUEs recorded in fishing blocks 737, 738, and 757 off the Laguna Beach area, 2000-2009. The best-fit regression is drawn (R- = ). no subtidal habitat assessments were conducted during this study, the spatial distribution of giant kelp canopy can act as a proxy for hard substrate given giant kel
. Bulletin - Southern California Academy of Sciences. Science. 174 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 1 LU 3 CL O "CD O) 0 JQ 1 0 _> CO Legal CPUE Fig. 7. Scatterplot and linear regression comparing the sublegal and legal lobster CPUEs recorded in fishing blocks 737, 738, and 757 off the Laguna Beach area, 2000-2009. The best-fit regression is drawn (R- = ). no subtidal habitat assessments were conducted during this study, the spatial distribution of giant kelp canopy can act as a proxy for hard substrate given giant kelp's general ecological need for hard substrate to anchor its holdfast (Dayton 1985). Furthermore, the significant correlations observed during each survey between the spatial distribution of buoys and kelp canopy in light of the aforementioned substrate preferences of both giant kelp and lobster was consistent with Parnell et al. (2007) who found lobsters, and fishing effort, more commonly on rocky reefs offshore of La Jolla, California. As noted previously, the commercial fleet in the area reduced effort when the CPUE declined and therefore likely focused remaining effort on the most productive areas which were often associated with above average kelp canopies. These patterns were evident in the subsection buoy densities (Figure 2) and the significant correlations between these densities and kelp canopy area. This is consistent with Parnell et al. (2007) and Parnell et al. (2010) who found the most heavily fished areas were likely highly productive and areas of preferred habitat. As the season progressed, with the exception of January 2009, fishermen progressively abandoned the areas devoid of kelp canopy and increasingly focused their efforts to areas covered to a varying extent by kelp canopy likely due to the presence of submerged hard habitat. The comparatively elevated effort recorded near the southeastern edge of the HPSMR, especially after the first month, suggests that
Size: 1969px × 1269px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
