Seasonal variation of a molluscan assemblage living in a Caulerpa prolifera meadow within the inner Bay of Cádiz (SW Spain)

Rueda, José L.; Salas, Carmen

doi:10.1016/s0272-7714(02)00421-3

Cited by 58 publications

(46 citation statements)

References 17 publications

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“…Only 5 species (Pusillina marginata, Gibbula ardens, Rissoa similis, Bittium latreilii and Jujubinus striatus) occurring in the C. nodosa bed of Genoveses were also reported by Chemello et al (1997). Eight of the ten most dominant molluscs of the C. nodosa bed of Genoveses belong to the group of epifaunal species associated with vegetated bottoms; out of these, Smaragdia viridis and Rissoa membranacea are strictly associated with seagrasses (Rueda and Salas 2007;Rueda et al 2009a), and other species such as Rissoa monodonta, Jujubinus striatus, Gibbula leucophaea and Tricolia tenuis are generally found in macroalgae or seagrass beds in southern Spain (Rueda and Salas 2003;Rueda et al 2009a).…”

Section: Discussionmentioning

confidence: 99%

“…The classification of the species with respect to their biogeographical distribution is problematic, due to the lack of consensus on geographical areas that have been established by different authors mainly on the basis of oceanographic characteristics (Ekman 1953;Briggs 1974;Longhurst 1998). In order to handle the geographical range in more detail, geographical areas were established on a finer scale as follows: (0) Alboran Sea, with all the species found in this study; (1) Mediterranean Sea beyond the Alboran Sea (ME); (2) Ibero-Moroccan Gulf (IM), including the southern coasts of Portugal and the Atlantic coasts of Andalusia (south-western Spain) and Morocco according to the faunistic lists given by Pallary (1920), Salas (1996), Rueda et al (2000Rueda et al ( , 2001, Rueda and Salas (2003), Gofas et al (2011) and to unpublished data of the Algarve 1988 expedition of the Muséum National d'Histoire Naturelle, Paris; (3) western Europe (WE), from Portugal to the southern coasts of the United Kingdom according to the data given by Nobre (1940), Tebble (1966), Graham (1971), Bouchet et al (1979), Thompson and Brown (1976), Rolán (1983) and Rolán et al (1990); (4) northern Europe (NE), from the southern coasts of the United Kingdom to Scandinavia based on data by Høisaeter (1985) and Hansson (1998); (5) Canary Islands (CN), based on the works by Hernández et al (2011) and Gómez-Rodríguez and Pérez-Sánchez (1997); and (6) western Africa (AF), from Mauritania to tropical western African coasts according to the information given by Gofas and Zenetos (2003) on western African species that also occur in the Alboran Sea. The presence of the species in the different geographical areas was noted and their chorotypes were established.…”

Section: Data Analysesmentioning

confidence: 98%

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Composition and structure of the molluscan assemblage associated with a Cymodocea nodosa bed in south-eastern Spain: seasonal and diel variation

et al. 2012

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The molluscan taxocoenosis associated with a Cymodocea nodosa seagrass bed was studied throughout 1 year in Genoveses Bay, in the MPA ''Parque Natural Cabo de Gata-Níjar'' (south-eastern Spain). A total of 64,824 individuals were collected and 54 species identified. The molluscan fauna was mainly composed of gastropods (99.56% of individuals, 43 spp.). The families Rissoidae (72.98%, 11 spp.) and Trochidae (16.93%, 7 spp.) were the most abundant and diversified in terms of number of species. Rissoa monodonta (47.1% dominance), Rissoa membranacea (25.1%) and Gibbula leucophaea (11.6%) proved the top dominant species in both diurnal and nocturnal samples. Bivalves (0.41%, 10 species) and cephalopods (0.03%, 1 species) represented only a low percentage of the molluscan taxocoenosis. The molluscan assemblage was mainly composed of species with a wide geographical distribution in Europe, followed by strictly Mediterranean species. The abundance was significantly higher in the cold (December, March) than in the warm months (June, July). Species richness (S) was higher in nocturnal than in diurnal samples, reaching maximal values in diurnal samples of March and June. Shannon-Wiener diversity (H 0 ) values were generally higher in nocturnal samples than in diurnal ones, displaying minimum values in December and June, respectively. Evenness was similar in diurnal and nocturnal samples, with maximum values in July in both groups. S and H 0 were also significantly different between diurnal and nocturnal samples. Multivariate analyses based on both qualitative and quantitative data showed a significant seasonal and diel variation. Diel changes revealed to be more distinct than seasonal ones.

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Section: Discussionmentioning

confidence: 99%

Section: Data Analysesmentioning

confidence: 98%

Composition and structure of the molluscan assemblage associated with a Cymodocea nodosa bed in south-eastern Spain: seasonal and diel variation

et al. 2012

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“…Three replicates per station and month were generally taken, except in May and July 2009 at 10-15 m, with a total of 65 faunistic samples. This methodology has already been used successfully in studies of soft bottom molluscan assemblages (Rueda & Salas, 2003b;Urra et al, 2011). In the laboratory, faunistic samples were sieved over mesh sizes down to 0.5 mm, then stored in 70% ethanol.…”

Section: Faunistic Samplesmentioning

confidence: 99%

Seasonality and trophic diversity in molluscan assemblages from the Bay of Tunis (southern Mediterranean Sea)

et al. 2016

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Soft bottom molluscan assemblages from the Bay of Tunis have been studied in order to analyse their seasonality and trophic diversity in relation to environmental variables. A total of 147 species of molluscs was identified, with gastropods displaying the highest species richness and bivalves the highest abundances, and including five non-indigenous species such as the dominant ectoparasite Polycerella emertoni. Carnivorous and scavenger gastropods were among the most frequent species, reflecting a diverse benthic community. Seasonal changes were significant, being more acute at 3-4 m than at 10-15 m depth, and were driven mainly by seawater temperature and percentage of organic matter in the sediment. The high affluence of tourists in summer was coincident with high decreases in species richness and abundance of molluscs, together with a strong siltation of the sediment. Nevertheless, most trophic groups remained and the trophic diversity was relatively high. Significant relationships were found between the index of trophic diversity and Shannon-Wiener diversity and evenness indices, suggesting that the identity of the species with its particular trophic trait, together with the good distribution of the individuals among the species (density) would be the drivers for the maintenance of the molluscan food web under environmental stress. The abundance of P. emertoni altered the trophic structure of the molluscan assemblage, with the ectoparasite trophic group reaching an unusual punctual higher dominance. Soft bottom molluscan assemblages of the Bay of Tunis should be taken into account in monitoring programs for anthropogenic impacts and non-indigenous species trends throughout the Mediterranean basin.

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“…Dense population of R. splendida and B. reticulatum were presented in previous works (Öztürk, 2001;Albayrak et al, 2007;Çulha et al, 2007;Mutlu and Ergev, 2008;Bitlis et al, 2010;Çulha et al, 2010;Aslan-Cihangir and Ovalis 2013) carried out on the Turkish coasts. Rueda and Salas (2003) indicated that Jujubinus striatus (Di % = 30.15), Tricolia pullus (Di % = 14.41) and Nassarius incrassatus (Di % = 0.72) were dense in Caulerpa prolifera meadows. Yet, we noted that this species created a dense population on the soft bottoms as well.…”

Section: Discussionmentioning

confidence: 99%

The community structure of Prosobranchia (Mollusca: Gastropoda) on shallow soft bottoms of the Çanakkale Strait

Acar

Ateş

2017

EgeJFAS

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Abstract:The goal of this study was to determine the community structure belonging to the Prosobranchia (Gastropoda, Mollusca) in soft bottoms of the Çanakkale Strait coastal waters (0-5 m). Benthos samples were collected seasonally using a 30x30 quadrate operated by a SCUBA diver between July 2008 and April 2009. Samplings were carried out at 3 transect depths of 8 different locations of the Çanakkale Strait. A total of 4472 specimens of Prosobranchs were recorded. Rissoa splendida Eichwald, 1830 was the numerically dominant species (Di % = 20.57). Kilitbahir location had the highest number of individuals (1069), while the Lapseki location had the lowest number (157). According to Spearman's rank correlation, the highest positive correlation (rs = 0.75) was between salinity and species number. Conversely, the lowest correlation (rs = 0.51) was found between pH and species number. Bray-Curtis similarity index showed that summer and winter periods were very similar (88.65 %). Çanakkale and the Kilya inlet points had the highest similarity (70.87 %).

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Seasonal variation of a molluscan assemblage living in a Caulerpa prolifera meadow within the inner Bay of Cádiz (SW Spain)

Cited by 58 publications

References 17 publications

Composition and structure of the molluscan assemblage associated with a Cymodocea nodosa bed in south-eastern Spain: seasonal and diel variation

Composition and structure of the molluscan assemblage associated with a Cymodocea nodosa bed in south-eastern Spain: seasonal and diel variation

Seasonality and trophic diversity in molluscan assemblages from the Bay of Tunis (southern Mediterranean Sea)

The community structure of Prosobranchia (Mollusca: Gastropoda) on shallow soft bottoms of the Çanakkale Strait

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