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- Title
Reproductive dynamics and nursery habitat preferences of two commercially important Indo-Pacific red snappers Lutjanus erythropterus and L. malabaricus.
- Authors
Fry, Gary; Milton, David; Velde, Tonya; Stobutzki, Ilona; Andamari, Retno; Badrudin; Sumiono, Bambang
- Abstract
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.
- Subjects
NORTHERN Australia; INDONESIA; LUTJANUS campechanus; LUTJANUS; HABITATS; FISH spawning; FISH reproduction; FISH ecology; AQUATIC ecology; BIOLOGY
- Publication
Fisheries Science, 2009, Vol 75, Issue 1, p145
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1007/s12562-008-0034-4