Slipper Lobsters

Population genetic structure of the shovel-nosed lobster Thenus unimaculatus (Decapoda, Scyllaridae) in Indian waters based on RAPD and mitochondrial gene sequences

“…Among the multi-species lobster fishery in India, the most important ones that contributed to the fishery in 2010 were the shovelnosed lobster, Thenus unimaculatus Burton & Davie, 2007 and the scalloped spiny lobster, Panulirus homarus (Linnaeus, 1758) (CMFRI, 2011). Earlier studies and reports of the genus Thenus in India were based on the single species-Thenus orientalis (Chacko, 1967;Deshmukh, 2001;Kizhakudan et al, 2004a;Vijayakumaran & Radhakrishnan, 2011). However, in view of the species revision of the genus (Burton & Davie, 2007), the species distributed and caught widely along the coast was ascertained to be T. unimaculatus (Jeena et al, 2011).…”

“…T. unimaculatus is slow growing, less fecund (Kagwade & Kabli, 1996) with an average of 39,300 eggs for reproductively active females (Kizhakudan, 2014) and has a planktonic larval life of 26-45 days in coastal waters over continental shelf (Kizhakudan et al, 2004a;Radhakrishnan et al, 2007). The species is fast emerging as a new candidate of aquaculture interest because of shorter larval life, hardiness and good market value (Vijayakumaran & Radhakrishnan, 2011). Unfortunately, landings of Thenus spp.…”

Scyllarid Lobster Biology and Ecology

“…The Arctidinae appears to represent the earliest branching lineage during the evolution of this group [5], which corresponds to the fossil record. In addition, slipper lobsters have likely evolved from shallow (onshore) (5) aboral/ventral view of first maxilla; (6) mouth; (7) aboral/ventral view of mandible; (8) oral/dorsal view of third maxilliped; (9) oral/dorsal view of first maxilliped; (10) as phyllosoma larvae (Figure 3), although some scyllarids (Scyllarides aequinoctialis [23,24], S. herklotsi [25], S. latus [26], Ibacus alticrenatus [27] and I. ciliates [28] or I. novemdentatus [19]) hatch as a naupliosoma (pre-larva), a short-lived form lasting a few hours that bears only the first three pairs of cephalic appendages [29]. Abdominal appendages are typically absent or rudimentary in early phyllosomas, but appear in later stages [30].…”

“…and Acinata spp.) can also biofoul the phyllosomas and cause mortality [8]. Traditionally, a number of antibiotics as well as other chemicals have been heavily used for controlling bacterial colonies in the rearing water.…”

“…Of these four genera, Scyllarides (Gill, 1898) has been studied extensively due to their large adult size, which makes them economically important; their worldwide geographical distribution in tropical and subtropical habitats; and their numerous species (14) [1]. Considerable knowledge is also available for species within the genus Thenus because of some relevance in certain fisheries as well as the success in rearing these animals in aquaculture [8].…”