. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Walleye pollock 539 TABLE 33-7 Reproductive characteristics of walleye pollock, based upon NMFS Crab-Groundfish research vessel surveys, 1973-1978. Agea Pivotal Proportion of Individual Potential age- (yrs) length (cm)'' females mature*^ fecundity (X 10^ )d class fecundity^ X Vs Ps K IsPsbs 0. 0. 0.
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Walleye pollock 539 TABLE 33-7 Reproductive characteristics of walleye pollock, based upon NMFS Crab-Groundfish research vessel surveys, 1973-1978. Agea Pivotal Proportion of Individual Potential age- (yrs) length (cm)'' females mature*^ fecundity (X 10^ )d class fecundity^ X Vs Ps K IsPsbs 0. 0. 0. ^Assuming a median birthday of April 1. ''The size at time of spawning ("April 1") was computed as 95% the y^ value. 600 nm diameter) produced per year, using the relationship from Shew (1978). ^Potential age-class fecundity = product of survival (at time of spawning), proportion mature, and individual fecundity; 1^ values were computed using the age-specific mortality rates, assuming equal survival of males and females. Units = 10^ ⢠1978 Midwater sighting â 1979 Midwater sigtiting t^ Overall apparent range i of Itsti predato Figure 33-16. Observations of 0-group (two- to four- month-old) pollock during June to mid-August, based upon NMFS research surveys during 1978 and 1979. Figure 33-17. Overall apparent range of one-year-old pollock during June to mid-August, based upon NMFS research surveys, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hood, D. W. (Donald Wilbur), 1918-; Calder, John
Size: 2373px × 1053px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookcollectionamericana, bookleafnumber563
