Abundance and diversity of amphipods (Crustacea: Peracarida) on shallow algae and seagrass in lagoonal ecosystem of the Mediterranean Tunisian coast

Zaabar, Wahiba; Zakhama‐Sraieb, Rym; Charfi‐Cheikhrouha, Faouzia; Achouri, Mohamed

doi:10.1186/s40555-015-0113-z

Cited by 16 publications

(17 citation statements)

References 32 publications

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“…Sediment grain‐size and organic matter content play a significant role in controlling the distribution of the amphipod communities in the Kneiss Islands. Contrariwise, the distribution of amphipods in the Kneiss subtidal channels appears mainly linked to the presence of algae and phanerogams and the availability of detritus (Fersi et al, 2018), which are the same factors responsible for the amphipod distribution in the Bizerte Lagoon (Zaabar et al, 2015). In other localities, several authors (Guerra‐Garcia et al, 2014) have obtained the same results as observed in the Kneiss Islands concerning the amphipod distribution.…”

Section: Discussionmentioning

confidence: 99%

“…The variation of seasonal climatic parameters may alter the temperature and salinity conditions in estuarine habitats, thus leading to changes in the seasonal structure of benthic assemblages (Cunha et al, 1999). In addition, these changes can be explained by the seasonality in growth and production rate of eelgrass beds (Esquete et al, 2011; Karaçuha et al, 2009; Zaabar et al, 2015). In general, the traits of eelgrass meadows are least marked in winter, when young leaves start developing, associated with the lowest production of epiphytic biomass.…”

Section: Discussionmentioning

confidence: 99%

“…Functional biodiversity is analysed taking into account the nature, origin and food feeding mode of each species: S, suspension feeders; Ds, deposit‐suspension feeders; He, herbivores; De, deposit feeders; and O, omnivores. These trophic groups are considered here according to the recent literature (Guerra‐Garcia et al, 2014; Zaabar, Zakhama‐Sraieb, Charfi‐Cheikhrouha, & Sghaier, 2015; Zakhama‐Sraieb et al, 2011).…”

Section: Methodsmentioning

confidence: 99%

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Do intertidal Zostera noltei meadows represent a favourable habitat for amphipods? The case of the Kneiss Islands (Gulf of Gabès: Central Mediterranean Sea)

et al. 2020

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The structure, diversity, spatial and seasonal distributions of amphipod assemblages associated with intertidal Zostera (Zosterella) noltei meadows were studied around the Kneiss Islands (central Mediterranean Sea). This site represents a site of international interest in terms of its ornithological diversity (Important Bird Area, Ramsar Site and SPAMI). The amphipod fauna was sampled at 32 stations in spring 2014. A total of 6,482 individuals belonging to 78 species and 22 families were identified; among these taxa, Lysianassa ceratina is new for the Tunisian amphipod inventory, whereas 25 species are identified for the first time in the Gulf of Gabès. The dominant species are Cymadusa filosa, Microdeutopus gryllotalpa, Gammarus insensibilis, Dexamine spiniventris, Monocorophium insidiosum, Elasmopus rapax, Melita palmata and Leucothoe incisa. Four amphipod assemblages are identified using MDS analysis. The distribution of amphipod assemblages is linked to several environmental factors, such as sediment type, organic matter content and distance from the shore, which is itself associated with a clear inshore–offshore gradient. Seasonal variations of the amphipod assemblage patterns at eight stations, sampled between April 2014 and January 2015, show a maximum abundance and diversity during summer and autumn, with a minimum in winter. These seasonal fluctuations may be related to many factors such as variations of climatic factors (e.g. temperature, salinity), the growth and production rates of Zostera noltei meadows and seasonal patterns in the life cycle of dominant species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Do intertidal Zostera noltei meadows represent a favourable habitat for amphipods? The case of the Kneiss Islands (Gulf of Gabès: Central Mediterranean Sea)

et al. 2020

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“…The study site, located in the northeast of Bizerte Lagoon (37°14ʹ10.25"N, 9°54ʹ52.13"E), on a sandy mud bottom, was selected because of its abundance of isopods and its accessibility. According to Zaabar et al (2015b), the vegetal cover at Menzel Jemil mainly consists of Ulva lactuca (Linnaeus, 1753); during spring substantial numbers of Gracilaria bursa pastoris (S. G. Gmelin) P. C. Silva 1952 and Gracilariopsis longissima (S. G. Gmelin) M. Steentoft, L. M. Irvine and W. F. Farnham 1995 are present. Cladophora sp.…”

Section: Study Areamentioning

confidence: 99%

Distribution of four isopods (Peracarida: Crustacea) in shallow waters of the Bizerte Lagoon (Tunisia, SW Mediterranean Sea)

Zaabar

Cheikhrouha

Achouri

2017

The European Zoological Journal

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The distribution of four isopods-Idotea balthica basteri (Pallas, 1772), Idotea chelipes mediterranea Charfi-Cheikhrouha, 1996, Sphaeroma serratum (Fabricius, 1787), and Paracerceis sculpta (Holmes, 1904)at Menzel Jemil (Bizerte Lagoon, North Tunisia) was analysed and then related to the variation of temperature, depth and plant biomass. The abundance of isopods showed monthly fluctuations with maxima in August and minima in December 2010. The most dominant species was I. b. basteri followed by S. serratum, with a spatial gradient in the distribution pattern of isopod species in the study area. The high density of juveniles in algae and seagrass highlights the important role played by this habitat as a nursery for species. Both dominant species were tolerant to temperature variations, with some preference values (19.73-27.73°C in I. b. basteri; up to 28°C in S. serratum) and salinity (36.7-38.6 psu in I. b. basteri; 39-39.2 psu in S. serratum). Multiple regression analysis between environmental variables and species abundance showed a positive relationship with biomass of Gracilaria bursa-pastoris and Ulva lactuca for the two species of Idotea and Sphaeroma, respectively, while abundance of P. sculpta was positively related to temperature. Biotic and environmental linking (BIOENV) analysis confirmed the greatest influence of temperature and vegetation biomass on the temporal distribution of these isopod species. A spatial distribution pattern according to successive depths was revealed.

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“…Some local studies on Posidonia oceanica (Zakhama-Sraieb et al, 2006a, b, 2010, as well as in environments such as the Bizerte lagoon (Zaabar et al, 2015), also highlight the importance of amphipods in shallow-water ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Amphipods from tidal channels of the Gulf of Gabès (central Mediterranean Sea)

Fersi¹,

Dauvin²,

Pezy³

et al. 2018

Medit. Mar. Sci.

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The spatial and temporal species richness, abundance and assemblage structure of amphipods from four tidal channel of the Gulf of Gabès were studied at 26 stations and during four seasons from March 2016 to January 2017. This led to the identification of 4,278 individuals, 45 species and 21 families. The four mostly diversified families are the Ampeliscidae (6 species), the Caprellidae (5) and the Aoridae and Maeridae (4 species both), while three families account for ~ 75% of the individuals: Aoridae (45.5 %), Corophiidae (20.5%) and Dexaminidae (7.2%). The species richness and abundance were higher in winter than at other seasons. The fauna is dominated by a small number of species characteristic of areas with detritus accumulation and seagrass meadows, including Microdeutopus anomalus, Monocorophium acherusicum, Dexamine spinosa, Microdeutopus gryllotalpa, Cymadusa filosa and Elasmopus rapax, which are commonly recorded in lagoons and coastal shallow waters of the Mediterranean Sea. The amphipod structure is linked to the location of tidal channels in the Gulf of Gabès. Abundances are low in the Kerkennah channel compared with other channels, especially the Maltine channel with high winter accumulation of organic matter. There are also low abundances in high-energy hydrodynamic zones with gravel sediment; conversely, the presence of macrophytes, mainly in the seagrass meadows, increases amphipod diversity. As a result of this study, five new species can be added to the inventory of the Tunisian marine amphipod fauna, including a non-native species for the Mediterranean Sea, Paracaprella pusilla.

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Abundance and diversity of amphipods (Crustacea: Peracarida) on shallow algae and seagrass in lagoonal ecosystem of the Mediterranean Tunisian coast

Abstract: Background: Bizerte lagoon is a semi-enclosed marine ecosystem, where various types of human activities have been developed. To investigate the distribution and temporal variation of amphipod assemblage, monthly sampling was conducted at the Menzel Jemil

Cited by 16 publications

References 32 publications

Do intertidal Zostera noltei meadows represent a favourable habitat for amphipods? The case of the Kneiss Islands (Gulf of Gabès: Central Mediterranean Sea)

Do intertidal Zostera noltei meadows represent a favourable habitat for amphipods? The case of the Kneiss Islands (Gulf of Gabès: Central Mediterranean Sea)

Distribution of four isopods (Peracarida: Crustacea) in shallow waters of the Bizerte Lagoon (Tunisia, SW Mediterranean Sea)

Amphipods from tidal channels of the Gulf of Gabès (central Mediterranean Sea)

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