scholarly journals Variation in the population biology of stripey bass Lutjanus carponotatus within and between two island groups on the Great Barrier Reef

2002 ◽  
Vol 243 ◽  
pp. 191-207 ◽  
Author(s):  
JP Kritzer
Keyword(s):  
Great Barrier Reef ◽  
Population Biology ◽  
Barrier Reef ◽  
Lutjanus Carponotatus

Growth, sexual dimorphism, and population biology of the olive sea snake, Aipysurus laevis, on the Great Barrier Reef of Australia

2000 ◽  
Vol 21 (3) ◽  
pp. 289-300 ◽  
Author(s):  
Glen Burns ◽  
Harold Heatwole
Keyword(s):  
Sexual Dimorphism ◽  
Great Barrier Reef ◽  
Population Biology ◽  
Sexual Maturity ◽  
Reproductive Behaviour ◽  
Barrier Reef ◽  
Sea Snake ◽  
Sea Snakes ◽  
Equivalent Length ◽  
Reef Edge

AbstractThe olive sea snake, Aipysurus laevis (Lacépède) grows at a rate of 0.22-0.95 cm/month, with young animals growing faster than older ones. Males reach sexual maturity in their third year and females in their fourth or fifth year. There is sexual dimorphism in size, with females larger than males; at snout-vent lengths greater than 80 cm, females are heavier than males of equivalent length. Small snakes were uncommon. Apparent sexratio favours males in winter but moves toward equality or even a preponderance of females in summer, probably reflecting changes in reproductive behaviour. Numbers of snakes are approximately 0.70-0.86 snakes per metre of reef edge. Olive sea snakes live to about 15 years or older.

scholarly journals Wind Conditions on the Great Barrier Reef Influenced the Recruitment of Snapper (Lutjanus carponotatus)

2018 ◽  
Vol 5 ◽  
Author(s):  
Jodie A. Schlaefer ◽  
Eric Wolanski ◽  
Jonathan Lambrechts ◽  
Michael J. Kingsford
Keyword(s):  
Great Barrier Reef ◽  
Barrier Reef ◽  
Lutjanus Carponotatus

No-take marine reserves increase abundance and biomass of reef fish on inshore fringing reefs of the Great Barrier Reef

2004 ◽  
Vol 31 (2) ◽  
pp. 149-159 ◽  
Author(s):  
D.H. WILLIAMSON ◽  
G.R. RUSS ◽  
A.M. AYLING
Keyword(s):  
Great Barrier Reef ◽  
Size Structure ◽  
Marine Reserve ◽  
Barrier Reef ◽  
Coral Trout ◽  
Quantitative Estimates ◽  
Fringing Reefs ◽  
Lutjanus Carponotatus ◽  
Average Size ◽  
Density And Biomass

The application of no-take marine reserve status to an area is expected to increase abundance and average size of individuals of species targeted by fisheries. The majority of the evidence supporting such expectations still involves comparisons of abundance at the one time of sites with and without marine reserve protection. Very few studies have data on the abundance and size structure of species targeted by fisheries in an area before reserve status is applied. Quantitative estimates of density and biomass of coral trout, Plectropomus spp., the major target of the hook and line fisheries on the Great Barrier Reef (GBR), Australia, on inshore fringing reefs of the Palm and Whitsunday Island groups, central GBR, are provided for 3–4 years before (1983–1984), and 12–13 years after (1999–2000) the establishment of no-take reserves in 1987. Quantitative estimates of density and biomass of coral trout in areas open to fishing were also collected in 1999–2000 at these two island groups. Density and biomass of coral trout increased significantly (by factors of 5.9 and 6.3 in the Palm Islands, and 4.0 and 6.2 in the Whitsunday Islands) in the reserve sites, but not the fished sites, between 1983–1984 and 1999–2000. In 1999–2000, density and biomass of coral trout and a secondary target of the fisheries, Lutjanus carponotatus, were significantly higher in the protected zones than in the fished zones at both island groups. The density and biomass of non-target fish species (Labridae, Siganidae and Chaetodontidae) did not differ significantly between reserve and fished zones at either island group. This is the most convincing data to date that the management zoning of the world's largest marine park has been effective, at least for coral trout on inshore reefs.

Hooking mortality of two species of shallow-water reef fish caught by recreational angling methods

1997 ◽  
Vol 48 (6) ◽  
pp. 479 ◽  
Author(s):  
B. K. Diggles ◽  
I. Ernst
Keyword(s):  
Great Barrier Reef ◽  
Total Mortality ◽  
Handling Time ◽  
Body Cavity ◽  
Shallow Waters ◽  
Barrier Reef ◽  
Fish Size ◽  
Recreational Angling ◽  
Lutjanus Carponotatus ◽  
Observation Period

The hooking mortality of two teleosts, the yellow stripey Lutjanus carponotatus (Lutjanidae), and the wire netting cod Epinephelus quoyanus (Serranidae), was examined for fish captured with lures and bait from shallow waters (<2 m) on the Great Barrier Reef. Total mortality for both species (n = 340 fish) over the 48-h observation period was low (1.76%). Baitfishing with single hooks caused a significantly higher post-release mortality rate (5.1%) than did lure fishing with treble or single hooks (0.4%), and was the hooking method most likely to cause bleeding and damage to vital organs. Death of fish was observed only in instances where hooks penetrated the pericardium or body cavity. Handling time was significantly affected by fish size and hooking location, did not vary significantly between fish species, and was significantly reduced when barbless hooks were used in both lure and baitfishing. One specimen of each species, deeply hooked in the gut or oesophagus while baitfishing, was allowed to retain the hook; both fish survived and subsequently regurgitated the hook during the observation period. The relevance of these data to management of line fisheries on the Great Barrier Reef is discussed.

Refuge-Seeking Impairments Mirror Metabolic Recovery Following Fisheries-Related Stressors in the Spanish Flag Snapper (Lutjanus carponotatus) on the Great Barrier Reef

2014 ◽  
Vol 87 (1) ◽  
pp. 136-147 ◽  
Author(s):  
Steven J. Cooke ◽  
Vanessa Messmer ◽  
Andrew J. Tobin ◽  
Morgan S. Pratchett ◽  
Timothy D. Clark
Keyword(s):  
Great Barrier Reef ◽  
Barrier Reef ◽  
Metabolic Recovery ◽  
Lutjanus Carponotatus
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