Reproductive biology of three congeneric sea cucumber species, holothuria atra, h. Impatiens and h. edulis, at heron reef, great barrier reef

Harriott V.J. (1985) Reproductive biology of three congeneric sea cucumber species, holothuria atra, h. Impatiens and h. edulis, at heron reef, great barrier reef. Marine and Freshwater Research, 36 1: 51-57. doi:10.1071/MF9850051


Author Harriott V.J.
Title Reproductive biology of three congeneric sea cucumber species, holothuria atra, h. Impatiens and h. edulis, at heron reef, great barrier reef
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
Publication date 1985-01-01
Sub-type Article (original research)
DOI 10.1071/MF9850051
Volume 36
Issue 1
Start page 51
End page 57
Total pages 7
Subject 1104 Complementary and Alternative Medicine
1105 Dentistry
2303 Ecology
1910 Oceanography
Abstract Three Holothuria species at Heron Reef showed considerable variation in reproductive seasonality, magnitude of gonad index, egg size and numbers, and frequency of asexual reproduction by transverse binary fission. H. atra from the shallow lagoon spawned biannually (in summer and winter), females produced a large number of small ova, and asexual reproduction was frequent. H. impatiens from the reef flat spawned annually in late spring or summer, with females producing a small number of large ova; signs of asexual reproduction were never observed. H. edulis from the deep lagoon showed no annual reproductive pattern, produced an intermediate size and number of eggs, and reproduced asexually moderately frequently. Preliminary results indicated that reproductive maturation and magnitude of gonad index might vary between sites for H. atra. There was little temporal overlap in spawning by the three species at the sites sampled, and this may be a factor in the maintenance of their genetic isolation.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 23 Aug 2016, 15:32:44 EST by System User