. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 358 SISTER M. AQUINAS PATIRIA sperm spermatocytes oocytes >100/j oocytes, 35-100/j oocytes, 10-34jj PISASTER sperm spermatocytes oocytes >100p oocytes, 35-100jj oocytes, 10-34ju. Aug Oct Dec Feb Apr Jun Aug FIGURE 1. Seasonal abundance of germinal cells and sperm in the gonads of Pisastcr ocliraceus and Patiria miiiiata. The principle spawning period is indicated by the decrease in number of oocytes greater than 100 /m in diameter. testes vary markedly in size in the course of the reproductive cycle in Pisastcr
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 358 SISTER M. AQUINAS PATIRIA sperm spermatocytes oocytes >100/j oocytes, 35-100/j oocytes, 10-34jj PISASTER sperm spermatocytes oocytes >100p oocytes, 35-100jj oocytes, 10-34ju. Aug Oct Dec Feb Apr Jun Aug FIGURE 1. Seasonal abundance of germinal cells and sperm in the gonads of Pisastcr ocliraceus and Patiria miiiiata. The principle spawning period is indicated by the decrease in number of oocytes greater than 100 /m in diameter. testes vary markedly in size in the course of the reproductive cycle in Pisastcr. The gonacls of Pisastcr are smallest in August and September ( GI = < 1 ), begin to enlarge about October, and reach a maximum size (GI :: 16 or more) in March, April or May. Spawning occurred in May 1965 and between March and June 1966 (Nimitz, 1971, Fig. 7). Early in gametogenesis the testis and ovary are indistinguishable unless examined microscopically. Ripe ovaries are salmon pink : ripe testes, a cream color. The gonadal cycle for Patiria is less pronounced and also less consistent. The ;.; 'iiads begin to increase in size in early fall. Over the period studied spawning. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
