The effect of temperature on larval development of two non-indigenous poecilogonous polychaetes (Annelida: Spionidae) with implications for life history theory, establishment and range expansion

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

“…Conti and Massa (1998) studies revealed that protrocophore larvae appeared 5 h after fertilization (experience carried out at 25e32 C), while in Pires et al (2012a) protrocophore larvae were observed only 19 h after fertilization (22 C). David and Simon (2014) reported that females of the polychaete Polydora hoplura presented higher larval survivorship at intermediate to higher temperatures (21 and 24 C) and lower at 12 and 17 C, pointing out a positive relationship between temperature and larval development. In western Europe, Berke et al (2010) stated that the expansion of genus Diopatra could be related with punctual warm anomalies in sea surface temperature, and point out temperature as a key factor in this genus performance.…”

“…Climate data also revealed a higher frequency of heat waves in the last decade, coupled with an increase in frequency of severe drought periods (Grilo et al, 2011). Some studies revealed that temperature shifts can be responsible for species expansion and retreat, mainly by influencing larval development and dispersal (Berke et al, 2010;David and Simon, 2014;Wethey et al, 2011;Woodin et al, 2014), with consequences for life cycle, establishment and range expansion (David and Simon, 2014). Heat waves may also be responsible for alterations of marine coastal systems structure and functioning, namely in terms of declination of total abundance and species richness (Grilo et al, 2011), with negative impacts on food web structure and function (Govender et al, 2011).…”

Biotic Interactions as Mediators of Biological Invasions: Insights from South Africa

“…For example, ten shell-boring polychaete worm species are known to infect shells of cultured molluscs, mainly oysters and abalone, along the South African coastline (Simon and Sato-Okoshi 2015). Two of these parasites are invasive in South Africa, namely Polydora hoplura and Boccardia proboscidia (Simon et al 2006(Simon et al , 2009David and Simon 2014). The former was detected in the 1950s, while B. proboscidia was first recorded in 2004 (Simon et al 2006(Simon et al , 2009.…”

“…The former was detected in the 1950s, while B. proboscidia was first recorded in 2004 (Simon et al 2006(Simon et al , 2009. The ability of females of these two polychaetes to produce multiple larval types (poecilogonous), and to survive and reproduce across a wide range of temperatures and substrates, all contribute to their invasion success in South Africa (David and Simon 2014). The excavation of burrows on shell surfaces of molluscs by polydorid annelids such as P. hoplura and B. proboscidia, not only leads to shell damage, but also causes reduced growth and condition, and ultimately increased mortality rates (Simon et al 2006).…”

The role of cryptic dispersal in shaping connectivity patterns of marine populations in a changing world

“…hoplura, experimental studies found that the species was capable of surviving in temperatures as low as 12°C and as high as 24°C, with both temperatures characteristic of the Atlantic Ocean on the west coast of the country and the Indian Ocean on the east coast respectively (David & Simon, 2014). It is therefore not surprising that the high genetic connectivity observed in this species could have been mistaken for panmixia.…”