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Reproductive biology of the red throat emperor Lethrinus miniatus (Pisces : Lethrinidae) from the southern Great Barrier Reef, Australia

Sumpton, W. and Brown, I. (2004) Reproductive biology of the red throat emperor Lethrinus miniatus (Pisces : Lethrinidae) from the southern Great Barrier Reef, Australia. Bulletin of Marine Science, 74 (2). pp. 423-432.

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Publisher URL: http://www.rsmas.miami.edu/bms/

Abstract

The reproductive biology of the red throat emperor, Lethrinus miniatus (Schneider, 1801) was examined in the southern Great Barrier Reef (GBR), Australia. The species was found to display the characteristics of an incomplete metagynous hermaphrodite based on histological evidence and size frequency information. Over 95% of functional males possessed a remnant lumen, but there was no evidence of oocytes in the testes of males. A single transitional fish was sampled which had both ovarian and testicular tissue present in its gonad. Size frequency data showed that females dominated the smaller size classes with the majority of fish < 40 cm being females. Lethrinus miniatus had an extended spawning season from July-November, although spawning was more pronounced during the spring. Spawning was initiated earlier at lower latitudes. There was no particular size or age when sex change occurred since females older than 20 and males as young as 2-yrs old were sampled.

Item Type:Article
Additional Information:Reproduced with permission of the Bulletin of Marine Science. © Rosenstiel School of Marine and Atmospheric Science. University of Miami.
Keywords:Lethrinus miniatus; Great Barrier Reef; red throat emperor; reproductive biology.
Subjects:Science > Biology > Reproduction
Science > Zoology > Chordates. Vertebrates > Fishes
Aquaculture and Fisheries > Fisheries > By region or country > Australia > Great Barrier Reef
Deposited On:09 Aug 2004
Last Modified:15 Jun 2011 23:23

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