First record of the purple dye murex Bolinus brandaris (Gastropoda: Muricidae) and a revised list of non native molluscs from Galician waters (Spain, NE Atlantic)

Bañón, Rafael; Rolán, Emilio; García-Tasende, Manuel

doi:10.3391/ai.2008.3.3.8

Cited by 28 publications

(21 citation statements)

References 3 publications

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“…The introduction of non-native molluscs into NWIP waters has been steadily growing from the late-1980s onwards (Bañón et al 2008). As for C. neritea, most of these exotics seem linked to unintentional co-transport with commercial bivalves from the Adriatic Sea (references in Bañón et al 2008). However, and unlike C. neritea, they include many predatory gastropods with a potential for negative impacts on the receiving system.…”

Section: Resultsmentioning

confidence: 99%

Population structure and range expansion: the case of the invasive gastropodCyclope neriteain northwest Iberian Peninsula

Couceiro

López

Ruiz

et al. 2012

Integrative Zoology

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Biotic invasions have a reputation for unpredictable behavior. Here, we report how slight changes in human activity responsible for the introduction and range expansion of a non-native mollusk have led to detectable differences in the genetics of the invasion. Cyclope neritea is a non-predatory gastropod introduced to 2 areas of the European Atlantic: the northwest Iberian Peninsula (NWIP) and the French Atlantic coast (FAC). Shellfish seabed farming is intense in both areas but focuses on different commercial species. Using mitochondrial gene sequences, the lower genetic diversity recorded along the NWIP suggests a more homogeneous range of source populations than in the FAC. Unlike FAC, genetic diversity and haplotype composition in the NWIP correlate with the date of first occurrence of C. neritea at each site rather than with geographical location. Although this pattern evokes the genetic signature expected under a serial-founder colonization model from a single initial enclave, a comparison with samples from potential source populations suggests that the NWIP probably experienced several independent reintroductions. The jump dispersal pattern of C. neritea in the NWIP, together with the observation that populations established in the same year are genetically undifferentiated, point to human transport as the most plausible explanation for the current range expansion. Despite evidence for human-mediated dispersal, C. neritea managed to develop a seemingly non-random genetic pattern in the NWIP. It is suggested that caution must be exerted when interpreting genetic patterns in invaders.

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Section: Resultsmentioning

confidence: 99%

Population structure and range expansion: the case of the invasive gastropodCyclope neriteain northwest Iberian Peninsula

Couceiro

López

Ruiz

et al. 2012

Integrative Zoology

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“…Xenostrobus securis is registered in Galicia at least from 1995 (Bañón et al 2008;J.E. Trigo, personal communication).…”

Section: Colonization Historymentioning

confidence: 95%

The mussel Xenostrobus securis: a well-established alien invader in the Ria de Vigo (Spain, NE Atlantic)

et al. 2009

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Biological and habitat characterization of the non-indigenous invasive species Xenostrobus securis was undertaken in the Ria de Vigo. This study included genetic identification of mussel samples collected from introduced and endemic areas, and the assessment of mussel size, population abundance, geographic distribution, pathological condition, and sediment composition of substrata type. The mussel had a marked patchy distribution, being more abundant in brackish sites with fine sediments and high organic matter content. Pathological analysis revealed that X. securis does not play any role as vector for introducing allochthonous pathogens in the Ria de Vigo. Nevertheless, depending on its invasiveness potential, the mussel could be a key host favouring spreading and epizootic outbreaks of marteliosis which is known to be harmful for local bivalve populations. Phylogenetic analyses of the COI gene placed all the resulting sequences in a clade within the genus Xenostrobus and its phylogeny congruent with an Australian/Pacific origin. The COI tree suggests two historical introductions in European waters. One of these invasions seems to have started in Galicia, moving from there towards Italy and France, while the geographical spread of the second invasion cannot be deciphered, although the Australian/Pacific origin of this invasion seems very possible. The 18S network is congruent with one invasion starting in Galicia or in Italy, as the Australian haplotype is closely related to the haplotype found in these areas. Several hypotheses accounting for the colonization history of this species in Galician waters are discussed.

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“…Only the banded dye‐murex, Hexaplex trunculus (Linnaeus, 1758), was targeted because it appears more common at archaeological sites (Oliver, ). Hexaplex trunculus colonize all Mediterranean coasts extending as far north as the Gallican coast and south to Morocco (Bañón, Rolán, & García‐Tasende, ; Vasconcelos et al., ). At present, it is considered a minor commercial species (Sawyer, Zuschin, Riedel, & Stachowitsch, ; Vasconcelos et al., ) and is still harvested with artisanal methods (Peharda & Morton, ; Vasconcelos et al., ) remarkably similar to those described by Aristotle and Pliny the Elder.…”

Section: Problemmentioning

confidence: 99%

A new probabilistic approach to estimating marine gastropod densities from baited traps

et al. 2018

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A new probabilistic approach is proposed to assess muricid species population abundances at scales relevant to both Ancient and Modern coastal fisheries. Motivated by the long‐term goal of reconstructing the dynamics of exploited murex populations during Antiquity, the objective was to estimate the population density of the banded dye‐murex, Hexaplex trunculus (Linnaeus, 1758) from successive captures with baited traps, using a method similar to the technique employed in the Mediterranean purple dye industry. The stochastic model developed simulates cumulative captures while accounting for high variability. It was calibrated with data acquired during a field trapping experiment (Crete Island, Greece). Traps’ catchability and Effective Area of Attraction (EAA) were estimated using the individual speed and behavioural response towards bait from laboratory experiments. Average density of H. trunculus was estimated as 2.2 ± 1.4 SE individuals per square metre, with no significant differences between seagrass and rocky habitats. The clearing time of successive capture experiments averaged 84 ± 6 SE hr. Clearing ca. 0.4 ha of subtidal area would be necessary to produce ca. 1.0 g of pure Tyrian purple pigment. The method described is generalizable to making population abundance estimates for similar groups, such as whelks, in modern fisheries.

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First record of the purple dye murex Bolinus brandaris (Gastropoda: Muricidae) and a revised list of non native molluscs from Galician waters (Spain, NE Atlantic)

Cited by 28 publications

References 3 publications

Population structure and range expansion: the case of the invasive gastropodCyclope neriteain northwest Iberian Peninsula

Population structure and range expansion: the case of the invasive gastropodCyclope neriteain northwest Iberian Peninsula

The mussel Xenostrobus securis: a well-established alien invader in the Ria de Vigo (Spain, NE Atlantic)

A new probabilistic approach to estimating marine gastropod densities from baited traps

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