Optimal sperm concentration and time for fertilization of the tropical abalone, Haliotis asinina Linné 1758

Encena, Vincent C.; Capinpin, Emmanuel C.; Bayona, Nestor C.

doi:10.1016/s0044-8486(98)00250-6

Cited by 26 publications

(13 citation statements)

References 5 publications

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“…Results from the present study are similar to those from gamete age in the tropical abalone Haliotis asinina (Encena et al 1998) and H. laevigata (Babcock & Keesing 1999) (Table 2). Oocytes of free-spawning invertebrates usually live longer than the sperm (Pennington 1985).…”

Section: Discussionsupporting

confidence: 85%

Fertilization success in the commercial gastropod Haliotis tuberculata

Baker¹,

Tyler²

2001

Mar. Ecol. Prog. Ser.

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A series of laboratory experiments was conducted to determine fertilization success in the commercial abalone Haliotis tuberculata L. Fertilization success is a function of sperm dilution, sperm-egg ratio, gamete age and the amount of time sperm and eggs are in contact. Sperm density required for optimum fertilization success in vivo, using 10 ml culture volume, was in the range 5 × 10 4 to 5 × 10 5 sperm ml -1. When these experiments were repeated using 500 ml culture volume, results showed high levels of fertilization success across a far larger range of sperm dilutions with success > 80% at 10 3 sperm ml -1. Sperm-egg ratios of >100:1 have little effect on fertilization success, but below these levels this factor becomes significant. Viability of both sperm and eggs decreased with age so that no fertilization occurred after 2.5 h. Maximum fertilization success occurred after 30 min sperm-egg contact time. These data suggest that sperm limitation may severely compromise reproductive success in exploited populations of H. tuberculata.

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Section: Discussionsupporting

confidence: 85%

Fertilization success in the commercial gastropod Haliotis tuberculata

Baker¹,

Tyler²

2001

Mar. Ecol. Prog. Ser.

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“…These results differ from those reported for nearshore temperate and tropical freespawning marine invertebrates in that, although the same percentages of fertilisation success are achieved in the Antarctic, this is only so over a much smaller range of sperm concentrations and only at concentrations 1 to 2 orders of magnitude higher. Temperate and tropical species have optimum ranges for fertilisation success between 10 3 and 10 6 sperm ml -1 (Clavier 1992, Clotteau & Dube 1993, Williams et al 1997, Encena et al 1998, Babcock & Keesing 1999, Baker & Tyler 2001. Good rates of fertilisation are still achievable at sperm concentrations as low as 10 2 sperm ml -1 (Pennington 1985, Levitan et al 1991.…”

Section: Discussionmentioning

confidence: 99%

“…It is common in fertilisation kinetics studies to score the presence of the fertilisation membrane as the indicator of fertilisation success before anomalies are apparent (Oliver & Babcock 1992, Benzie & Dixon 1994, Fong et al 1995, Lasker et al 1996, Encena et al 1998, Babcock & Keesing 1999. However, fertilisation membranes can appear normal but produce embryos that develop abnormally during division (Farmanfarmaian & Giese 1963, cited in Greenwood & Bennett 1981.…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, the spermatozoa from L. elliptica (at a concentration of 10 7 sperm ml -1 ) were capable of fertilising fresh ova for more than 90 h after activation, and fertilisation rates of ~75% were still achievable after ~40 h. For N. concinna, fertilisation (at a concentration of 3.6 × 10 6 sperm ml (Encena et al 1998), 5+ h for the mussel Mytilus edulis (Levy & Couturier 1996) and 4 to 8 h in the cockle Cerastoderma edule (André & Lindegarth 1995). Sperm longevities of 48 and 24+ h respectively were reported in the ascidians Ascidia mentula (Havenhand 1991) and Diplosoma listerianum (Bishop 1998) and 20 h in the asteroid Asterias rubens (at 10 4 sperm ml -1 ) (Williams & Bentley in press).…”

Section: Discussionmentioning

confidence: 99%

“…KEY WORDS: Fertilisation success · Antarctica · Reproduction · Free-spawning · Sperm concentration · Sperm age · Laternula elliptica · Nacella concinna Resale or republication not permitted without written consent of the publisher mercial molluscan species, including abalone Haliotis spp. (Clavier 1992, Mill & McCormick 1992, Encena et al 1998, Babcock & Keesing 1999, Baker & Tyler 2001, oyster Crassostrea gigas, Manilla clam Tapes decussatus, limpet Patella vulgata (M. Baker unpubl. data), cockle Cerastoderma edule (André & Lindegarth 1995), mussel Mytilus spp.…”

Section: Introductionmentioning

confidence: 99%

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