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Gary Fry David A. Milton Tonya Van Der Velde Ilona Stobutzki Retno Andamari Badrudin Bambang Sumiono 《Fisheries Science》2009,75(1):145-158
Red snappers were examined for reproductive biology and age-0 habitat preferences. Spawning in red snappers occurred throughout
the year in northern Australia and eastern Indonesia; at least 10–30% of females and 40–80% of males were in ripe or spawning
condition in most months. Northern Australian populations showed a spawning peak from July to December (L. erythropterus) and September to March (L. malabaricus). Eastern Indonesian L. malabaricus had a less defined pattern with two peaks: January–March and October. Size at first maturity was 240 mm for males and 250–300 mm
for females. L
50 estimates were similar between species in northern Australia: 270–280 mm (males) and 350–370 mm (females). Maximum batch
fecundity was 676,100 oocytes for L. erythropterus and 997,000 oocytes for L. malabaricus. Higher mean abundances of age-0 L. erythropterus were found in silty and coarse sand/rubble estuarine habitats of northern Australia (456 ± 119 fish/km2) compared with sandy coastal habitats (5 ± 3 fish/km2). Most age-0 snapper caught at Sape (eastern Indonesia) were L. malabaricus (91%) with mean abundances of 312 ± 14 fish/km2. The similarities in the reproductive characteristics of red snappers suggest that successful management approaches adopted
in northern Australia should be considered in eastern Indonesia. 相似文献
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