@article {115,
	title = {Reproductive cycle of <i>Golfingia margaritacea</i>, a bipolar sipunculan, in subantarctic water},
	journal = {Marine Biology},
	volume = {117},
	year = {1993},
	note = {ABST; THE REP. CYCLE OF THE BIPOLAR SIP. G.M. COLLECTED FROM USHUAIA, ARGENTINA (5449S, 6813W) IN 1986 \& 1987 IS RECORDED. THE POPULATION SAMPLED SHOWED A SEX RATIO OF 1:1. MALES HOWEVER, FREQUENTLY OUTNUMBERED FEMALES. MEASUREMENTS OF COELOMIC OOCYTES DELINEATED AN ANNUAL REP. CYC. SMALL OOCYTES WERE PRESENT IN THE COELOM ALL YEAR: A SUB-POP. BEGAN TO INCREASE SIZE ABOUT THE MIDDLE OF SPRING AND REACHED ITS MAXIMUM SIZE IN LATE SUMMER. SPAWNS MAY OCCUR FROM THE END OF FEB. > APRIL. MAY IS CHARACTERIZED BY RESORPTION OF LARGE OOCYTES. MONTHLY MONITORING OF GONADS REVEALED MITOTIC ACTIVITY AND A CONTINUOUS RELEASE OF GAMETOCYTES TO THE COELOM. PARASITES WERE DETECTED IN THE GONADS. LARGE COELOMIC OOCYTES WERE ALSO PRESENT IN THE COELOM DURING THE SAME SEASON IN THE NORTHERN AND SOUTHERN HEMISPHERES, BUT THE EGG SIZES WERE SIGNIFICANTLY LARGER IN BOREAL POPS. *55\% MALE - IN TEXT;},
	pages = {409-414},
	keywords = {gametogenesis, reproductive cycle},
	author = {Amor, A.}
}
