Ecology of Paracentrotus lividus

Boudouresque, Charles F.; Verlaque, Marc

doi:10.1016/s0167-9309(01)80013-2

Cited by 175 publications

(196 citation statements)

References 59 publications

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“…Our study clearly reveals the presence of an autumn-winter settlement peak which is smaller than the spring peak of the same year, but of the same order of magnitude as spring peaks of other years. Thus it is reasonable to accept the often suggested existence of 2 spawning periods for P. lividus (reviewed in Boudouresque & Verlaque 2001), although histological data of gonads is needed to confirm this. The differences in settlement observed between the 2 habitats could be explained by the higher abundance of potential settlement induction cues on the rock wall.…”

Section: Discussionmentioning

confidence: 99%

“…Predation pressure on Paracentrotus lividus is probably very high in both habitats, as the main predators of juvenile and adult P. lividus, such as the fish Diplodus sargus, D. vulgaris, Labrus merula, L. viridis and Coris julis or the sea star Marthasterias glacialis (see Boudouresque & Verlaque 2001 for a review), are remarkably abundant at the study site (García-Rubies & Zabala 1990, F. Tomas pers. obs.).…”

Section: Discussionmentioning

confidence: 99%

“…Paracentrotus lividus (Lamarck) is one of the most important invertebrate herbivores in Mediterranean waters (Boudouresque & Verlaque 2001), exerting a significant effect on algae, even at low densities (Palacín et al 1998a), and in seagrass communities (Alcoverro et al 1997). Whereas P. lividus is generally found at low densities in Posidonia oceanica (L.) Delile meadows (0 to 6 individuals (ind.)…”

Section: Introductionmentioning

confidence: 99%

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Settlement and recruitment of the sea urchin Paracentrotus lividus in two contrasting habitats in the Mediterranean

Tomàs¹,

Romero²,

Turon³

2004

Mar. Ecol. Prog. Ser.

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We measured settlement and recruitment of one of the main invertebrate herbivores in the Mediterranean, the sea urchin Paracentrotus lividus, in 2 neighbouring and contrasting habitats: a seagrass meadow and a vertical rock wall. We quantified and compared temporal and bathymetrical variability in settlement and compared settlement with recruitment over a 4 yr period. Two settlement peaks were observed each year, a main peak in spring-early summer and a second peak in autumn-early winter. Interannual variability in settlement was very high (ca. 1 order of magnitude). Settlement was generally higher on the rock wall than in the seagrass meadow. No appreciable successful recruitment was observed in the meadow during the 4 yr studied despite the arrival of settlers. The few juvenile urchins found in the meadow were encountered at the shallow part and were completely hidden between the rhizomes. However, no differential settlement on the rhizome stratum was observed. In contrast to the seagrass meadow, recruitment occurred every year on the rock wall. Despite the arrival of settlers in both habitats, the population in the seagrass meadow appears to be recruitment-limited and probably mainly sustained by immigration, while settlement and recruitment appear to determine, to a certain extent, adult population structure and dynamics on the rock wall.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Settlement and recruitment of the sea urchin Paracentrotus lividus in two contrasting habitats in the Mediterranean

Tomàs¹,

Romero²,

Turon³

2004

Mar. Ecol. Prog. Ser.

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“…As natural stocks are declining due to fishing pressure (Boudouresque and Verlaque, 2001;Andrew et al, 2002), mariculture has an important role to play to supply high quality seeds, juveniles and adults (Guidetti et al, 2004;Pais et al, 2007). Due to its high roe content, the purple sea urchin Paracentrotus lividus (Lamarck, 1816) has been identified as an ideal candidate to satisfy increasing demand in Europe but wild stocks generally cannot sustain a fishery (Watson and Stokes, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

et al. 2012

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This study investigated the growth, survival and fatty acid composition of sea urchin Paracentrotus lividus larvae fed four microalgal diets: Cricosphaera elongata, Pleurochrysis carterae, Tetraselmis suecica and Dunaliella tertiolecta (control). Larvae were successfully raised to competence for metamorphosis when fed C. elongata, P. carterae and D. tertiolecta diets but significant differences were found in survival rate and development. Larvae fed C. elongata showed 3 times higher survival and 20 % faster development than larvae fed the other two microalgae diets that supported development. In contrast, T. suecica failed to fully support development and larvae stalled at the four arms stage for more than 30 days. The urchin larvae could accumulate long-chain polyunsaturated fatty acids (LC-PUFA) such as docosahexaenoate (DHA; 22:6n-3), eicosapentaenoate (EPA; 20:5n-3) and arachidonate (ARA; 20:4n-6), either by assimilation and retention of dietary fatty acids, and/or synthesis from α-linolenic acid 18:3n-3 and linoleic acid 18:2n-6. Moreover, an accumulation of n-3 LC-PUFA and higher EPA/DHA and EPA/ARA ratios appeared to be associated with improved larval performance. The results indicate that live microalgae species, with appropriate fatty acid profiles are able to improve P. lividus larval performance, ultimately increasing hatchery profitability.

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“…Besides, sea urchins produce a great amount of eggs, feasible to be fertilized in sea water and to develop optically clear embryos among others characteristics, making these organisms good test models. Moreover, the early stages of these organisms are more sensitive to toxicants than the adults and microscopical measures are easy to perform [6,7,10]. All these noteworthy characteristics of these two model organisms enable their use in an estuarine study.…”

Section: Introductionmentioning

confidence: 99%

Primary Screening of the Bioactivity of Brackishwater Cyanobacteria: Toxicity of Crude Extracts to Artemia salina Larvae and Paracentrotus lividus Embryos

et al. 2010

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Cyanobacteria are a diverse group of Gram-negative bacteria that produce an array of secondary compounds with selective bioactivity against vertebrates, invertebrates, plants, microalgae, fungi, bacteria, viruses and cell lines. The aim of this study was to assess the toxic effects of aqueous, methanolic and hexane crude extracts of benthic and picoplanktonic cyanobacteria isolated from estuarine environments, towards the nauplii of the brine shrimp Artemia salina and embryos of the sea urchin Paracentrotus lividus. The A. salina lethality test was used as a frontline screen and then complemented by the more specific sea urchin embryo-larval assay. Eighteen cyanobacterial isolates, belonging to the genera Cyanobium, Leptolyngbya, Microcoleus, Phormidium, Nodularia, Nostoc and Synechocystis, were tested. Aqueous extracts of cyanobacteria strains showed potent toxicity against A. salina, whereas in P. lividus, methanolic and aqueous extracts showed embryo toxicity, with clear effects on development during early stages. The results suggest OPEN ACCESS Mar. Drugs 2010, 8472 that the brackishwater cyanobacteria are producers of bioactive compounds with toxicological effects that may interfere with the dynamics of invertebrate populations.

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Ecology of Paracentrotus lividus

Cited by 175 publications

References 59 publications

Settlement and recruitment of the sea urchin Paracentrotus lividus in two contrasting habitats in the Mediterranean

Settlement and recruitment of the sea urchin Paracentrotus lividus in two contrasting habitats in the Mediterranean

Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

Primary Screening of the Bioactivity of Brackishwater Cyanobacteria: Toxicity of Crude Extracts to Artemia salina Larvae and Paracentrotus lividus Embryos

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