Spatial and inter-annual variability of the macrobenthic communities within a coastal lagoon (Óbidos lagoon) and its relationship with environmental parameters

Carvalho, Susana; Moura, Ana; Gaspar, Miguel B.; Pereira, Paula; Fonseca, Luı́s Cancela da; Falcão, Manuela; Drago, Teresa; Leitão, Francisco; Regala, J.

doi:10.1016/j.actao.2004.11.004

Cited by 58 publications

(47 citation statements)

References 23 publications

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“…This is in agreement with the observations of several authors (Carvalho et al, 2005;Moreira et al, 2006;Lourido et al, 2008), who report that subsurface deposit feeders are predominantly found in sandy and muddy sediments. According to these authors, the distribution and abundance of these burrowing species is controlled by nutrients in the water column.…”

Section: Discussionsupporting

confidence: 82%

“…Mikac & Musco, 2010). As most of the environmental parameters are closely related to each other, it is difficult to separate the effect of any given parameter on the spatial distribution of polychaete communities (Carvalho et al, 2005). Nevertheless, it is generally observed that, although some taxa are associated with a given sediment-type habitat, their distribution is rarely restricted to that habitat alone.…”

Section: Discussionmentioning

confidence: 99%

“…Arenicola marina). These species increase the biodiversity of the sediment and its structure (Carvalho et al, 2005;Kedra et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Polychaete fauna from the intertidal zone of the Kneiss Islands (central Mediterranean Sea)

Mosbahi¹,

Dauvin²,

Neifar³

2017

Medit. Mar. Sci.

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The spatial and temporal distribution, abundance and assemblage structure of polychaete communities in the Kneiss Islands (central Mediterranean Sea) was studied at 42 stations selected among seagrass Zostera (Zosterella) noltei Hornemann meadows and unvegetated habitats sampled from April 2014 to January 2015. The Kneiss Islands represent a site of international interest in terms of their ornithological diversity (Important Bird Area, Ramsar Site and SPAMI). A total of 18,026 individuals and 92 species of polychaetes belonging to 25 families were identified. Analysis of the trophic structure reveals that the majority of stations are strongly dominated by deposit feeders (51.2%), followed by carnivores (34.8%) and suspension feeders (14%). Polychaete diversity and abundance were higher on the vegetated stations. Four polychaete assemblages are identified using MDS analysis. The distribution of polychaete assemblages are influenced by edaphic factors, particularly sediment structure and organic matter content. Seasonal variations of the polychaete community patterns at 20 stations show a maximum abundance and diversity during spring and summer and a minimum during winter. Seasonal fluctuations follow the seasonal variations of the environmental factors such as temperature and salinity, and correspond also to the lifestyle of the dominant species.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

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Polychaete fauna from the intertidal zone of the Kneiss Islands (central Mediterranean Sea)

Mosbahi¹,

Dauvin²,

Neifar³

2017

Medit. Mar. Sci.

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“…In the laboratory, the presence of vegetation in each sample was noted and the benthic fauna was sorted, identified to species level (where possible), and classified to at least one of the following trophic groups according to the nature and origin of food: 1) herbivores (H), feeding on macroalgae and/or phanerogams; 2) carnivores (C), feeding on various sessile or motile invertebrates; 3) suspension feeders (Sf), feeding on suspended organic particles in the water column; 4) deposit feeders (Df), feeding on detritus on the substratum at the bottom of the lagoon. Species belonging to more than one trophic group were assigned by dividing the number of their individuals by the number of trophic groups in which they could be included (Fauchald and Jumars 1979, Boaventura et al 1999, Cancela da Fonseca et al 2001, Bazairi et al 2003, Carvalho et al 2005. The assignment of each taxon to the appropriate trophic group was performed according to Fauchald and Jumars (1979), Webb et al (1987), Koutsoubas et al (2000b), Mistri et al(2001a), Kelly et al (2002), Fidalgo e Costa et al Grain size analysis of the sediment was carried out according to the methods described by Buchanan (1984).…”

Section: Sampling Methods and Laboratory Techniquesmentioning

confidence: 99%

Spatio-temporal variability of benthic macrofauna in a coastal lagoon assessed by ecological interaction networks

Paraskevopoulou¹,

Monokrousos²,

Kappas³

et al. 2015

Community Ecology

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An ecological survey of the benthic communities was carried out, at both spatial and temporal scales, in Papapouli Lagoon, the first ecotouristic park in Greece by applying for the first time, ecological network analysis. The application of ecological network analysis provided novel information on the quality of interactions among species, undetected by the most frequently used methods. The sorting of substrate samples enabled the identification and density determination of 40,036 individuals belonging to 31 different taxa, although, strong dominance of only a few species was observed. "Deposit feeders" were the dominant trophic group in all sampling sites and seasons while "suspension feeders" exhibited relatively the lowest abundance. The periodic opening of the sea inlet seems to be of crucial importance. In coastal lagoons, where there is constant communication with the sea, benthic fauna patterns seem to change according to the sea-land gradient. However, in intermittently closed lagoons, such as Papapouli Lagoon, a more homogenous pattern is evident. The obtained networks showed that when communication with the sea is interrupted all the benthic fauna patterns tend to be destabilized and centralized around one species, which in most cases is a "deposit feeder". When the inlet opens and communication with the sea is restored, the benthic composition seems to be more cohesive, especially in the most distant regions. Knowledge generated by network analysis should provide a valuable tool in order to assess potential environmental changes and assist management decisions.

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“…These environmental conditions favour a high species diversity (Carvalho et al 2005, Koutsoubas et al 2000, with molluscs often described as the most diverse faunal group in the sea inlet of marine lagoons (Millet and Guelorget 1994). This finding is in agreement with the high number of species observed within the Channel Cluster (S5-S8), considering that this very tiny spot (0.27 km 2 ) hosted 113 taxa, and 82 were only recorded within it (Table 3).…”

Section: Current Molluscan Assemblage: Faunal and Ecological Insightsmentioning

confidence: 99%

The evolution of the molluscan biota of Sabaudia Lake: a matter of human history

Macali¹,

Conde²,

Smriglio³

et al. 2013

Sci. Mar.

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Spatial and inter-annual variability of the macrobenthic communities within a coastal lagoon (Óbidos lagoon) and its relationship with environmental parameters

Cited by 58 publications

References 23 publications

Polychaete fauna from the intertidal zone of the Kneiss Islands (central Mediterranean Sea)

Polychaete fauna from the intertidal zone of the Kneiss Islands (central Mediterranean Sea)

Spatio-temporal variability of benthic macrofauna in a coastal lagoon assessed by ecological interaction networks

The evolution of the molluscan biota of Sabaudia Lake: a matter of human history

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