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Observationson the embryos of the longfin mako, Isurus paucus, and the bigeye thresher, Alopias superciliosus
- Date Issued:
- 1983
Title: | Observationson the embryos of the longfin mako, Isurus paucus, and the bigeye thresher, Alopias superciliosus. |
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Name(s): |
Gilmore, R. G. Harbor Branch Oceanographic Institute |
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Type of Resource: | text | |
Genre: | Article | |
Date Issued: | 1983 | |
Publisher: | American Society of Ichthyologists and Herpetologists. | |
Place of Publication: | New York | |
Physical Form: | ||
Extent: | 9 p. | |
Language(s): | English | |
Identifier: | FA00007105 (IID) | |
Note(s): |
Four embryos of Alopias superciliosus and one of lsurus paucus were dissected
and examined along with the reproductive organs of adults captured in the
Florida Current off the east-central coast of Florida between latitude 26°30'N
and 28°30'N. The embryos were found to contain yolk, demonstrating prenatal
nutrition through intrauterine oophagy. Various proportions of embryo anatomy
considered diagnostic for these species resemble those of adults. The general
gonad morphology and presence of egg capsules containing multiple ova resemble
the described development stages of other lamnids, alopiids and Odontaspis
taurus (Odontaspidae). This is the first documented observation of oophagy in these species. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 274 This manuscript is an author version with the final publication available and may be cited as: Gilmore, R. G. (1983). Observations on the embryos of the longfin mako, Isurus paucus, and the bigeye thresher, Alopias superciliosus. Copeia 2, 375-382. |
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Subject(s): |
Longfin mako Isurus paucus Alopias Thresher sharks Embryos |
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Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00007105 | |
Host Institution: | FAU |