Aspects of the Reproductive Biology and Growth of Balmain Bugs (Ibacus Spp.) (Scyllaridae)

Slipper lobsters (Scyllaridae) off the southeastern coast of Brazil: relative growth, population structure, and reproductive biology

“…Nevertheless, Castro et al (2003) demonstrated the efficacy of releasing caught fish of the genus Nephrops as a management measure. Haddy et al (2005) and Spanier and Lavalli (2006) suggested that slipper lobsters are more resistant to discard mortality, because of their thicker carapace (Melo, 1999), and usually return alive to the water. In addition, management actions, such as size limits, release of ovigerous females, and closed seasons were effective management controls for the Panulirus cygnus fishery (Hall and Chubb, 2001), indicating that such measures could be pertinent for slipper lobster fisheries.…”

“…Females also were collected at the time of landing and were later dissected for macroscopic examination of their gonads, which were categorized according to the classification proposed by and Haddy et al (2005). This classification was established for lobster species from the genus Ibacus and is also valid for the species in our study because of identical macroscopic characteristics.…”

“…The reproductive biology of members of the Scyllaridae has been studied for the genera Thenus (Kagwade and Kabli, 1996;Courtney et al, 2001) and Ibacus Haddy et al, 2005) with emphasis on the genus Scyllarides (Hardwick and Cline, 1990;Spanier and Lavalli, 1998;DeMartini and Williams, 2001;DeMartini et al, 2005;Hearn and Toral-Granda, 2007;Oliveira et al, 2008). According to the above mentioned authors, the sizes of females at maturity are smaller in species of the genera Ibacus (butterfly fan lobster) and Thenus (flathead lobster and T. indicus) than in species of the genus Scyllarides (blunt slipper lobster, Galapagos slipper lobster [S. astori], and hooded slipper lobster [S. deceptor]).…”

Slipper Lobsters

“…Thus, when considering the shed exoskeleton, the average animal encompasses an actual weight increase/recovery of almost 40%. Such data for S. latus are similar to those for Ibacus sp., where growth increments are higher in juveniles than mature adults (20 -35% vs. 11 -15%, respectively) (Haddy et al 2005 ). In T. orientalis , the average weight increase per moult in 10 g juvenile is above 90% of premoult weight and it reduces gradually to around 15 -11% in lobsters weighing 280 g. The shed exuvia weight represents 25 -30% depending on size, making it more than 100% actual weight increase per moult in smaller lobsters (M. Vijayakumaran, unpubl.…”

Treatise on Zoology - Anatomy, Taxonomy, Biology. The Crustacea, Volume 9 Part A

“…; Martins, 1985a;Almog-Shtayer, 1988;Jones, 1988;Stewart & Kennelly, 1997;Haddy et al 2005), and others having internally stored spermatophores (some Scyllarides, Ibacus, and some Scyllarus spp. ; Lyons, 1970;DeMartini et al, 2005).…”