Periodicity of spawning aggregations of coral trout Plectropomus leopardus (Pisces:Serranidae) on the northern Great Barrier Reef

Samoilys, Melita

doi:10.3354/meps160149

Cited by 120 publications

(135 citation statements)

References 12 publications

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“…The data support the reported build up of aggregations of Plectropom~~s leopardus and other Indo-Pacific serranids in relation to the lunar cycle, with peak abundances over the new moon periods (Johannes 1988, Johannes et al 1994, 1995, Samoilys & Squire 1994. This contrasts with studies on some Caribbean serranids (e.g.…”

Section: Use Patterns Of Aggregation Sitescontrasting

confidence: 56%

“…1). Similar minor aggregation and courtship sites of Plectropomus leopardus have been reported by Samoilys (1997). Whether most reproductive effort occurs exclusively at large aggregation sites is of critical importance in devising suitable management strategies (Sadovy 1994).…”

Section: Use Patterns Of Aggregation Sitesmentioning

confidence: 55%

“…1). At these locations 1 or 2 male Plectropom~is leopardus were observed displaying courtship behaviour (Samoilys & Squire 1994) towards groups of between 2 and 6 other coral trout (presumably females) Catchment distances: distances moved to spawning sites…”

Section: Resultsmentioning

confidence: 99%

“…Spawning aggregations of Plectropomus areolatus have been reported in Palau (Micronesia) (Johannes 1981) and the Solomon Islands (Johannes 1988). On the Great Barrier Reef (Australia), the first scientific investigation of spawning aggregations of the protogynous Plectropomus leopardus (coral trout) were reported by Samoilys & Squire (1994) and Samoilys (1.997), although anecdotal information was reported earlier (e.g. Johannes & Squire 1988).…”

Section: Mar Ecol Prog Sermentioning

confidence: 97%

“…Three extensive ultrasonic tracking periods took place during the spring-early summer period in the southern hemisphere, between August and December 1993, which is the reported spawning period for Plectropomus leopardus on the northern GBR (Samoilys & Squire 1994, Ferreira 1995.…”

Section: Methodsmentioning

confidence: 99%

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Spawning aggregations:patterns of movement of the coral trout Plectropomus leopardus (Serranidae) as determined by ultrasonic telemetry

Zeller¹

1998

Mar. Ecol. Prog. Ser.

148

117

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ABSTRACT-This study measured biological variables necessary for determining the dynamics of spawning aggregations and measured the influences of these variables on effects of fishing on these aggregations. Four major spawning aggregation sites of Plectropomus leopardus (Serranidae) were identified at Lizard Island, Northern Great Barrier Reef, Australia, using ultrasonic telemetry. Spawning aggregation activities displayed a lunar pattern, with peak activities during new moon periods in the austral spring-early summer. Of 35 fish tracked during spawning periods in 1993-95, only 31 'in participated in spawning aggregations, despite all specimens being sexually mature. All specimens that aggregated displayed fidelity to their chosen aggregation site. The distance between established home ranges and spawning aggregation sites ranged from 220 to 5210 m, with total spawning movements back and fol th for individual fish ranging from 600 m to over 17 km. One-way inter-reefal movements were recorded for 3 fish moving 3, 7.5, and 11 km between ~e l e d s e dnd recdpture locdtiuns. Male fish spent an average of 8 times longer at aggregations than females. Females (n -4 ) undertook single-day or overnight trips only, while males (n = 8) often did multl-day tl-ips Males were also more likely to make several trips to spa\vning aggregation sites than females S~n c e males spent more time at aggregation sites, and made more trips to those sites, they we!-e potentially more vulnerable to fishing pressure on aggregations. The reliance on several aggregation sites per reef makes P. leopardus potentially less vulnerable to overexploitation of spawning aggregations. However, the strong site fidelity observed makes indiv~dual aggregations vulnerable to depletion. The low participation rate of reproductively mature individuals at major aggregation events (31 ",O) suggested that not all spawning activity took place at the known aggregation sites.

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Section: Use Patterns Of Aggregation Sitescontrasting

confidence: 56%

Section: Use Patterns Of Aggregation Sitesmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 99%

Section: Mar Ecol Prog Sermentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Spawning aggregations:patterns of movement of the coral trout Plectropomus leopardus (Serranidae) as determined by ultrasonic telemetry

Zeller¹

1998

Mar. Ecol. Prog. Ser.

148

117

View full text Add to dashboard Cite

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Impacts of Climate Change on Eastern Australia Fisheries

Phillips

Welch

2017

Climate Change Impacts on Fisheries and Aquaculture

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Larger biomass of targeted reef fish in no‐take marine reserves on the Great Barrier Reef, Australia

Evans

Russ

2004

Aquatic Conservation

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ABSTRACT1. An expansion of no-take marine reserve zones of Australia's 348 000 km 2 Great Barrier Reef (GBR) Marine Park from 4.6% to 33.4% of the park area is proposed in 2004. However, limited evidence currently exists that no-take marine reserves on the GBR have increased abundance of reef fish targeted by fisheries. This study provides such evidence for inshore reefs of the GBR.2. Underwater visual surveys were used to estimate the effect of no-take reserves on abundance of species targeted by hook-and-line fisheries around the Palm, Whitsunday and Keppel Islands, spanning 600 km of the length of the GBR. The reserves had been zoned 'no fishing' for 14 yr.3. Densities of Plectropomus spp. and Lutjanus carponotatus, both targeted by fisheries, were much higher in protected zones than fished zones in two of the three island groups. Plectropomus spp. were 3.6 and 2.3 times more abundant in protected than fished zones of the Palm and Whitsunday island groups. L. carponotatus were 2.3 and 2.2 times more abundant in protected zones than fished zones of the Whitsunday and Keppel island groups.4. The biomasses of Plectropomus spp. and L. carponotatus were significantly greater (3.9 and 2.6 times respectively) in the protected zones than fished zones at all three island groups.5. Legal minimum sizes of Plectropomus spp. and L. carponotatus are 538 cm and 25 cm TL respectively. There were significantly higher densities and biomasses of Plectropomus spp. >35 cm TL (density: 3.8 times; biomass: 5.1 times) and L. carponotatus >25 cm TL (density: 4.2 times; biomass: 5.3 times) in protected zones than fished zones at all three island groups.6. No significant difference in abundance between protected and fished zones was found for two species not captured by fisheries (Siganus doliatus and Chaetodon aureofasciatus), and there were no significant differences in benthic characteristics between protected and fished zones.7. Results suggest that no-take marine reserves have increased stock biomass of targeted fish species on inshore GBR reefs.

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Periodicity of spawning aggregations of coral trout Plectropomus leopardus (Pisces:Serranidae) on the northern Great Barrier Reef

Cited by 120 publications

References 12 publications

Spawning aggregations:patterns of movement of the coral trout Plectropomus leopardus (Serranidae) as determined by ultrasonic telemetry

Spawning aggregations:patterns of movement of the coral trout Plectropomus leopardus (Serranidae) as determined by ultrasonic telemetry

Impacts of Climate Change on Eastern Australia Fisheries

Larger biomass of targeted reef fish in no‐take marine reserves on the Great Barrier Reef, Australia

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