Dendrobranchiata prawns

The dendrobranchiates, collectively known as prawns in Australia, are possibly the oldest lineage of the decapods. They have the familiar elongate body with a slender, muscular abdomen and three pairs of small chelipeds. Unlike other decapods, female prawns do not carry eggs until hatching, but spawn their fertilised

Gonodactylaceus Graphurus

Figure 23.2 A, 'spearing' mantis shrimp (Pseudosquilla ciliata); B, 'spearing' mantis shrimp (Lysiosquillina maculata); C, 'spearing' mantis shrimp (Pseudosquilla ciliata); D, 'smashing' mantis shrimp (Gonodactylaceus graphurus); E, 'smashing' mantis shrimp (Odontodactylus scyllarus) carrying egg mass; F, 'smashing' mantis shrimp (Gonodactylus smithii) showing threat display; G, penaeid prawn (Heteropenaeus longimanus); H, red spot king prawn (Melicertus longistylus); I, caridean shrimp (Periclimenes sp.); J, snapping shrimp (Synalpheus demani); K, hingebeak shrimp (Rhynchocinetes durbanensis); L, caridean shrimp (Periclimenes brevicarpalis) on sea anemone. (Photos: A, C-F, © R. Caldwell; B, © S. Ahyong; H, © G. Ahyong; G, K, L, © GBRMPA; I, J, R. Springthorpe, © Australian Museum.)

Figure 23.2 A, 'spearing' mantis shrimp (Pseudosquilla ciliata); B, 'spearing' mantis shrimp (Lysiosquillina maculata); C, 'spearing' mantis shrimp (Pseudosquilla ciliata); D, 'smashing' mantis shrimp (Gonodactylaceus graphurus); E, 'smashing' mantis shrimp (Odontodactylus scyllarus) carrying egg mass; F, 'smashing' mantis shrimp (Gonodactylus smithii) showing threat display; G, penaeid prawn (Heteropenaeus longimanus); H, red spot king prawn (Melicertus longistylus); I, caridean shrimp (Periclimenes sp.); J, snapping shrimp (Synalpheus demani); K, hingebeak shrimp (Rhynchocinetes durbanensis); L, caridean shrimp (Periclimenes brevicarpalis) on sea anemone. (Photos: A, C-F, © R. Caldwell; B, © S. Ahyong; H, © G. Ahyong; G, K, L, © GBRMPA; I, J, R. Springthorpe, © Australian Museum.)

eggs directly into the water column. Prawns are not generally common on corals or hard reef structures, though Heteropenaeus longimanus (Fig. 23.2G) and several species of Metapenaeopsis, Sicyonia, and Acetes have been recorded. Prawns are more abundant on the sediments of the lagoon and between reefs, where they support an important trawl fishery. One of the most important commercial species is the red-spot king prawn (Fig. 23.2H; Melicertus longistylus, previously known as Penaeus longistylus). Many commercial penaeids 'grow-out' in estuaries or nearshore habitats, and migrate offshore as adults, but red-spot king prawns spend their entire lives in the vicinity of the reef. Juveniles use shallow reef flats and lagoon areas as a nursery, and adults move to deeper parts of the lagoon to spawn.

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Worm Farming

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