The most recent research lines are based on understanding wild paralarvae behaviour and prey preferences, refining paralarval nutrition and rearing conditions for O. vulgaris welfare (Iglesias and Fuentes et al., 2014). In the culture of cephalopods, the paralarval life stage is a critical period, especially for octopuses. During this period, the paralarvae must initiate the consumption of a suitable diet to grow, requiring stable conditions for proper development (Iglesias & Fuentes, 2014; Iglesias et al., 2007). One of most imperative factors regulating survival and growth invertebrate larvae, including O. vulgaris is temperature (Kamler, 1992; Boidron-Metairon, 1995). If the temperature is not in suitable, the growth of paralarvae are disrupted and can result in poor development or even high mortality. Consequently, it is a significant bottleneck in the culture of Octopus vulgaris aquaculture.
Studying the effects of temperature stress on paralarvae and acquiring knowledge on how it the influences survival during the larval …show more content…
vulgaris can reach a maximum mantle length (ML) of 400 mm, commonly found to be 250 mm ML and total length (TL) ~1.8m (commonly males are 1.3 m and females are 1.2. m – Roper et al., 1984). O. vulgaris maximum weight of 20 kg, still, 3 kg is its common weight (Jereb et al., Roper et al., 1984; Vidal et al., 2014).
As incirrate octopods, they are benthic dwelling organisms that possess the primary external characteristics (e.g. spherical bodies that lack fins, tubular funnel on the underside of mantle cavity, deep web sectors, suckers on arms, ink sac, makes with a modified arm tip, beak and radula, etc. – Jereb et al., 2016). The main features used to diagnostically distinguish O. vulgaris sensu stricto from are in Table 1. O. vulgaris reportedly inhabits depths of 0 to 200 m in the sublittoral zone and occupies various types habitats (e.g. rocks, coral reefs, seagrass beds) situated in coastal waters (Jereb et al.,