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MACROBRACHIUM ROSENBERGII (CHALLENGES (Cannibalism, Cost -expensive seed…
MACROBRACHIUM
ROSENBERGII
HISTORY
:check:
1961
Marin FRI Penang
:check:
1963
success juvenile rearing
:check:
Dr Ling Shau Wen
discover FW prawn larvae need brackish condition
:check:
Takuji Fujimura
pioneer large scale hatchery
TAXONOMY
G: Macrobrachium (Bate,1868)
F: Palaemonidae
S: Macrobrachium rosenbergii
:star:1) largest sp(32cm)
:star:2) long rostrum (11-14 dorsal teeth,
8-10 ventral)
:star:3) ♂ adult have long 2nd cheliped
:star:4) 2nd cheliped has pincer & fur
MORPHOLOGY
:!:
TL
♂ 32cm, ♀ 25cm
:!:
Body
~bluish green @ brown
Cephalothorax
(head) ~
Abdomen
(tail)
:!:
cephalo
n (6 appendages)
~eye~1st &2nd antennae~mandible~1st & 2nd maxillae
:!:
thorax
(8 appendages)
~maxilliped 1,2,3 ~5 pereiopods)
:!:
abdomen
(tail)
~6 somite(pleura) ~ appendages (pleopod/swimmeret) ~telson
:!: ♀ carry egg under abdomen
CARIDAE
VS
PENAEID
CARIDEAN
:warning:
abdominal pleura
~ 2nd overlap both 1st & 3rd
:warning:
abdominal surface
~ smooth, rounded dorsal
PENAEID
:warning:
abdominal pleura
~ 2nd overlap only 3rd
:warning:
abdominal surface
~ simple, complex ridge, dorsal apex
CHALLENGES
Cannibalism
Cost
-expensive seed
PL
-longer stage
Nutrition
-lack
PRODUCTION
:explode:
2012
220254 tonne US 1.27 billion
:explode: in Malaysia, 457 t US 4.7million
:explode: China, Bangladesh, Thailand, Vietnam, Taiwan, Indonesia, India, Myanmar, Malaysia(9th)
LIFE CYCLE
egg
brackish
larvae
brackish-fw
PL
fw
juvenile
fw
Adult