期刊
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
卷 292, 期 1, 页码 93-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-0981(03)00147-3
关键词
crossbreeding; inbreeding; pectinid; scallop; self-fertilization
Argopecten purpuratus Lamarck (1819) is a functional hermaphrodite that releases successively male and female gametes during their spawning process. Because the short period between the release of both kind of gametes, the chance of self-fertilization exists, even in natural conditions. The self-fertilization rate was quantified in 10 scallops as the proportion of spontaneous (nonartificially fertilized) cleaving eggs. The existence of inbreeding depression was tested comparing families produced by self- and cross-fertilization. An average of 9.9% of spontaneous self-fertilization was detected. No differences in survival or growth in either larvae or juvenile were found between families produced by self-fertilization and pair mating. (C) 2003 Elsevier Science B.V. All rights reserved.
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