No sampling occurred in 1994.
The 14 most abundant fishes (99%26#37; of the midwater trawl catch) were used to calculate biomass estimates by the following steps:
The age class designations to calculate CPUE and BPUE were made from the Bay Study database table ;CutOffLengths;.
Wet weight in grams (g) of each fish was calculated from fork lengths (mm) using the relationship W = a*FLb, which was generated for each species from the DFG Length-Weight Special Study.
Biomass-per-unit-effort (BPUE) of each species at each station was calculated as: BPUE = (Sum of wet weight (g) /Tow volume (m3) ) * 10,000
Wet weight was converted to carbon weight using the ratio per Hanson et al. (1997): carbon weight (g) = wet weight (g) * 0.15
Carbon BPUE + 1 was log-transformed and the mean June-October values were reported by year.
Salinity (ppt) and temperature (degrees C) data was collected using a SBE 19 SEACAT Profiler CTD as of 1981.
Used averages of nearby stations and from other projects for missing SalinSurf data (N=75). Used 999 as a place holder for estimates outside June-October period so to be able to group samples in pivot tables.
Wet weight (g) was calculated as W = a*FLb
BPUEMWT = (SumOfWeight (g) per tow /Tow Volume (m3) ) * 10,000
carbon weight (g) = wet weight (g) * 0.15
BPUEcarbon = BPUEMWT * 0.15
Mean Log10 (BPUEcarbon +1)
