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

Marina, Pablo; Urra, Javier; Rueda, José L.; Salas, Carmen

doi:10.1007/s10152-012-0294-3

Cited by 21 publications

(12 citation statements)

References 42 publications

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“…Following a trend observed in several other studies involving phytal mollusks in different geographic regions (e.g., Chemello & Milazzo, ; Longo et al, ; Marina et al, ), the present study found the taxon Gastropoda to be dominant in richness and abundance, accounting for 99.6% of all specimens. This can be explained by several factors, including the general high abundance of this taxon in marine ecosystems, and it being the largest class of Mollusca (Sturm, Pearce, & Valdés, ).…”

Section: Discussionsupporting

confidence: 89%

Community structure and functional traits of mollusks associated with coastal reef macroalgae in Northeastern Brazil

et al. 2019

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This study investigated the community structure and functional traits of the mollusk fauna associated with macroalgae with different thallus morphologies in a reef environment in Northeastern Brazil. A total of 15 individuals of each species of macroalgae adhered to natural substrate and 15 individuals of Padina gymnospora detached from the substrate were collected. The structural complexity of algal habitats was measured and the associated malacofauna screened and identified. All three macroalgae differed significantly in the complexity of their habitat, with Sargassum polyceratium being the most complex. A total of 823 specimens of mollusks belonging to 22 species and 11 families were recorded, of which Columbellidae was the most represented with six species. The functional trait "size" revealed that micromollusks smaller than 10 millimeters were predominant in the community; however, individuals of larger sizes (up to 24.54 millimeters) belonging to young stages of other species were also present. Eight functional trophic groups were identified, of which "carnivorous" stood out with seven species. Six functional groups of microhabitats were identified, with intra-specific variation in habitats, while habitat expansion was documented for species not yet recorded in association with macroalgae. The structure of the molluskan community differed among the three algae species with the greatest richness, abundance, and diversity of mollusks and functional traits occurring with S. polyceratium. Community structure differed between algae adhered to natural substrate and detached algae, with the latter having lower mollusk richness and diversity, but with greater abundance of some species that remained on algal fronds after release from the reef environment. This study reinforces the importance of algal habitat for marine invertebrate fauna, especially for micromollusks that spend their entire life cycle, or part of it, in association with macroalgae. K E Y W O R D SDictyopteris justii, malacofauna, Padina gymnospora, phytal ecosystem, Sargassum polyceratium

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Section: Discussionsupporting

confidence: 89%

Community structure and functional traits of mollusks associated with coastal reef macroalgae in Northeastern Brazil

et al. 2019

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“…The highest family principal correlation factor was found in the seagrass area (0.96), and the lowest correlation factor was found in NMS sampling area (0.65). Seagrass habitat showed very assemble trend than other two habitats, and NMS habitat showed most dissimilarity of species which is very similar to the study of Marina et al (2012). The IUCN red list status analysis revealed that ten species had accessed as least concern species, two had data deficient and rest has status (most of the species) did not evaluate yet.…”

Section: Discussionsupporting

confidence: 68%

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

et al. 2020

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Abstract. Al-Asif A, Hamli H, Abu Hena MK, Idris MH, Gerusu GJ, Ismail JB, Karim NU. 2020. Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia. Biodiversitas 21: 4606-4615. Present study dealt with the on faunal and in faunal assemblage from seagrass bed, mangrove area, and adjacent non-mangrove and seagrass (NMS) in Punang-Sari estuary, Lawas, Sarawak, Malaysia. Samples were collected from June to July 2019 by using quadrates and handpicking from the outside the sampling area to know the real checklist of surface macrofauna in this area. A ten-meter transect line was settled in three habitat areas where sampling was performed by putting three quadrates (0.35m×0.35m). Epifauna and infauna samples were collected from inside the quadrate and sieved using 0.4 mm mesh size sieve. A total of 111 species of gastropod (87 species from 30 families), bivalve (18 species from 9 families), Polychaeta (2 species), echinoderms (1 species), and crustacean (3 species) were recorded during the study period. Seagrass meadows comprised most diverse and abundant faunal (50 species) assemblage followed by mangrove habitats (48 species), and NMS (20 species). The dendrogram revealed two significant habitats in the sampling site. PCA analysis revealed, seagrass habitat sheltered a higher number of species followed by mangrove and NMS area. Jaccard similarity index revealed seagrass and mangrove habitats (0.42) contains the highest similar species amongst all habitats compared to mangrove and non-seagrass-mangrove area (0.26). Out of total species recorded (101), only ten species were reported as least concern, and 2 species hold deficient data status, and the rest are not evaluated. Bio-assemblage in seagrass habitat was found rich compared to other habitats, which could be useful for future ecological investigation and marine ranching.

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“…beccarii, indicating shallow-water marginal environments (Felja et al 2015) and potentially epiphytic on Posidonia oceanica (Debenay et al 1998), is also abundant. The lucinid bivalve Lucinella divaricata, which is commonly associated with seagrass meadows (e.g., Covazzi Harriague et al 2006), shows highest abundance in the TST, and the two strictly seagrass-associated rissoid bivalves Rissoa monodonta and R. membranacea (Gofas et al 2011;Marina et al 2012) are restricted to this phase. All these taxa contribute to the compositional separation of the lower core section from the upper units (Table 5).…”

Section: Establishment and Decline Of Seagrass Environments At Venicementioning

confidence: 99%

Tracing Origin and Collapse of Holocene Benthic Baseline Communities in the Northern Adriatic Sea

Gallmetzer

Haselmair

Tomášových

et al. 2019

Palaios

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The shallow northern Adriatic Sea has a long history of anthropogenic impacts that reaches back many centuries. While the effects of eutrophication, overfishing, pollution, and trawling over recent decades have been extensively studied, the major ecological turnovers during the Holocene as a whole remain poorly explored. In this study, we reconstruct ecological baselines defining benthic ecosystem composition prior to major anthropogenic changes at four stations characterized by low sedimentation and millennial-scale time averaging of molluscan assemblages. We discriminate between natural and anthropogenic drivers based on (1) stratigraphic changes in the composition of molluscan communities observed in sediment cores and (2) changes in concentrations of heavy metals, pollutants, and organic enrichment. The four 1.5-m long sediment cores reach back to the Pleistocene-Holocene boundary, allowing for a stratigraphic distinction of the major sea-level phases of the Holocene. During the transgressive phase and maximum flooding, sea-level and establishment of the modern circulation pattern determined the development of benthic communities in shallow-water, vegetated habitats with epifaunal biostromes and, in deeper waters, with bryozoan meadows. After sea-level stabilization, the composition of these baseline communities remained relatively uniform and started to change markedly only with the intensification of human impacts in the late highstand, leading to a dominance of infauna and a decline of epifauna at all sites. This profound ecological change reduced species richness, increased the abundance of infaunal suspension feeders, and led to a decline of grazers and deposit feeders. We suggest that modern soft-bottom benthic communities in the northern Adriatic Sea today do not show the high geographic heterogeneity in composition characteristic of benthos prior to anthropogenic influences.

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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

Cited by 21 publications

References 42 publications

Community structure and functional traits of mollusks associated with coastal reef macroalgae in Northeastern Brazil

Community structure and functional traits of mollusks associated with coastal reef macroalgae in Northeastern Brazil

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

Tracing Origin and Collapse of Holocene Benthic Baseline Communities in the Northern Adriatic Sea

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