Archaeological settlement systems are usually analysed in terms of the relation between the rank of a settlement and its size (Zipf’s law). We argue that this approach is unreliable, and can be misleading, in application to archaeological data where the recovery rate of settlements can be low and their size estimates are often approximate at best. An alternative framework for the settlement dat...

In laboratory-based biofouling assays, the influence of physico-chemical surface characteristics on barnacle settlement has been tested most frequently using the model organism Balanus amphitrite (= Amphibalanus amphitrite). Very few studies have addressed the settlement preferences of other barnacle species, such as Balanus improvisus (= Amphibalanus improvisus). This study aimed to unravel th...

Most marine invertebrates have dispersive larvae and relatively immobile adults. These developmental stages are linked by a settlement event, which is often mediated by specific cues in bacterial biofilms. While larvae distinguish between biofilms from different environments, it remains unknown if they receive information from all, only a few or even just a single bacterial species in natural b...

Most studies of settlement cues in sessile marine invertebrates have focused on species with the potential to disperse over great distances. This persistent focus has perpetuated the idea that long-distance dispersing species may rely on cues to settle in specific habitats, whereas shortdistance dispersers are delivered directly into a favorable habitat. I tested the effects of water movement a...

This study has been carried out to investigate the biological and environmental parameters influencing the settlement and post-settlement survival of the infective stages of Lepeophtheirus salmonis KrOyer 1837. The abiotic factors investigated were temperature and salinity. Temperature was found to have a significant effect on the settlement success of the copepodids with an inverse relationshi...

Settlement and post-settlement processes of the sea cucumber Holothuria scabra Jaeger were studied in the laboratory. Independent and paired choice experiments revealed that several substrates could induce metamorphosis into pentactulae, but that specific substrates favoured settlement. Leaves of seagrass Thalassia hemprichii, with or without their natural bio-film, yielded the highest settleme...

Losers and Losers: Some Demographics of Medical Malpractice Tort Reforms Our research examines individual differences in the effects of medical malpractice tort reforms on pre-trial settlement speed and settlement amounts by age and most likely settlement size. Findings of note include that, unlike previously assumed, both absolute and percentage losses from tort reform are small for infants in...

Elevation of the K+ concentration in seawater (added as KC1) induces larval settlement and metamorphosis in Bugula simplex, B. stolonifera, and B. turrita. All three of these bryozoan species have similar bell-shaped dose-response curves: 5 mM excess K+ is sufficient to increase settlement and metamorphosis significantly over seawater controls in all the species and optimal responses to excess ...