Diversity and geographical distribution of soft-bottom macrobenthos in the bay of Bou Ismail (Algeria, Mediterranean Sea)

Bakalem, Ali; Hassam, Najla; Oulmi, Y.; Martinez, Marine; Dauvin, Jean–Claude

doi:10.1016/j.rsma.2019.100938

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…During the survey, molluscs and polychaetas were the most abundant taxa (72.66% and 12.95%, respectively), followed by crustaceans (Arthropoda, 8.63%). A previous study on the macrobenthic fauna in the Mediterranean Sea (Bay of Bou-Ismail, Algeria) showed a different structure with the dominance of polychaetes (44.7%), followed by crustaceans, and then echinoderms (7.6%) (Bakalem et al, 2020). There were similar findings in the eastern sector of the Gulf of Oran (western Algeria, Mediterranean Sea) (Kerfouf et al, 2022).…”

Section: Discussionsupporting

confidence: 53%

Macrobenthic fauna and the ecological status of a shellfish farm in the Mediterranean Sea (Algeria)

DILMI,

BACHETARZI,

REBZANI-ZAHAF

2024

Mediterr. Mar. Sci.

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A faunistic and ecological study on the benthic macrofauna was carried out in the shellfish farm in Ain Chorb (Ain Taya), central Algeria. This study aims to characterise the composition, structure, and functioning of the benthic community to establish the reference state and ecological quality of the shellfish farm and to monitor its evolution through an adapted sampling and observation methodology adapted and used by the scientific community at the international level. Benthic fauna samples were collected in two different periods (warm and cold season) between February 2020 and June 2021; six grab samples were carried out at three sampling stations. Different indices were evaluated based on the benthic community characteristics (species richness, abundance, density, ecological and trophic groups, and the biotic index) and indicator species. An inventory of the macrobenthic fauna of the farm allowed us to identify 6 phyla, 10 classes, 48 families, 106 genera, and 138 species, with a total of 45960 ind/m2. The benthic assemblage is characterised by the dominance of the species Abra alba, Salvatoria clavata, Caecum spp., and Bittium spp. The results of the four benthic indices (the Shannon-Weaver diversity index [H′], the AZTI Marine Biotic Index [AMBI], the multivariate AZTI Marine Biotic Index [M-AMBI], and the BENTIX) indicated that that the sampling stations have a moderate and good ecological status. These results were confirmed by the abundance/biomass comparison curves and geometric abundance class methods. This study provides the first inventory and represents the reference state of the soft-bottom communities of the aquaculture farm. The findings also indicate that the macrobenthic assemblage is excellent indicator of the ecological status.

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Section: Discussionsupporting

confidence: 53%

Macrobenthic fauna and the ecological status of a shellfish farm in the Mediterranean Sea (Algeria)

DILMI,

BACHETARZI,

REBZANI-ZAHAF

2024

Mediterr. Mar. Sci.

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“…Comparison with tanaid faunas from elsewhere in the Mediterranean (e.g., Riggio, 1995;Bakalem et al, 2020Bakalem et al, , 2021Koulouri et al, 2020;Herrero et al, 2021) indicates a degree of similarity, 18-39% shared species (Supplementary table 1), but with a probable higher biodiversity and dissimilarity of apseudomorphans further west, as on the Algerian coast (16 species of which only 38% are shared with the Israel fauna). It may also suggest non-recording (possibly due to unsampled habitats) of shallow-water species such as Apseudes africanus Tattersall, A. talpa (Montagu, 1808), A. miserai Băcescu, 1980, Heterotanais oerstedi (Krøyer, 1842, Pseudoparatanais batei (G.O.…”

Section: Discussionmentioning

confidence: 98%

Tanaidacea (Crustacea: Malacostraca: Peracarida) from soft-sediment shelf habitats off the Mediterranean coast of Israel (Levant Sea) –taxonomy, faunistics and ecological aspects

Lubinevsky

Tom

Bird³

2022

Medit. Mar. Sci.

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A 74-year zoogeographic and faunistic description of the shelf soft substrate peracaridan Tanaidacea along the Israeli coast, the eastern-most part of the Mediterranean, is provided here. The presence of three apseudomorphan and ten tanaidomorphanfamilies, with 28 species, is recorded, of which four are reported from the region for the first time, and five are new species in the genera Araphura, Nippognathiopsis, Paratyphlotanais, and Typhlotanais. In addition, a new genus is established for Akanthophoreus nanopsenos, Leptochelia tanykeraia is redescribed, and the presence of Chondrochelia savignyi is demonstrated. The tanaid shelf community essentially belongs to the Mediterranean zoogeographic province but has several Mediterranean-Atlantic species. Lessepsian (Erythrean) migration is currently indicated by the presence of one species, the Indo-Pacific kalliapseudid Cristapseudes omercooperi, which has established a population in the studied area. Its settlement strategy is demonstrated and discussed. The poor Indo-Pacific representation is possibly due to the lack of planktonic larvae in this peracarid group, reducing the chance of dispersion or transport from the Indo-Pacific realm via the Suez Canal.

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“…The Algerian continental shelf is narrow, in contrast with those found in the north-western basin of the Mediterranean Sea, and especially the Gulf of Lion and the northern part of the Adriatic Sea. The distribution of soft sediments shows an increasing gradient (in terms of silt content) with sea depth; the seabed composition was characterized by a succession of fine sand, muddy sand, sandy mud and pure mud such as observed in the coastal seabed in the bay of Algiers and the bay of Bou Ismail (Bakalem, 2008;Bakalem et al, 2020). Coarse sand and gravel make up the seabed near rocky shores, especially in the vicinity of the headlands bordering the bays (Grimes et al, 2016).…”

Section: General Characteristics Of the Algerian Coastal Zonementioning

confidence: 98%

“…The distribution of the 534 polychaete species found in Algerian waters is categorised taking into account the distinct geographical areas of the Mediterranean and related maritime regions as proposed by Coll et al (2010) and modified by Bakalem et al (2020). These are, 1: African Atlantic Coast (from Cap Spartel to Cap Blanc); 2: North-Eastern Atlantic European waters; 3: Alboran Sea; 4: North-Western Mediterranean; 5: Algeria South-Western Mediterranean; 6: Ionian Sea; 7: Tunisian shelf and Libya; 8: Adriatic Sea; 9: Aegean Sea; 10: Black Sea; 11: Levantine Sea; 12: Red Sea and 13: Indo-Pacific oceans.…”

Section: Geographical Patterns Of Polychaetes From the Algerian Coastsmentioning

confidence: 99%

Inventory and the biogeographical affinities of Annelida Polychaeta in theAlgerian coastline (Western Mediterranean)

Bakalem

Gillet²,

Pezy

et al. 2020

Medit. Mar. Sci.

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The data analyzed to inventory of all polychaetes in Algerian waters make it possible to estimate the diversity of this group to 534 species. The most diversified families are Syllidae (66 species), Spionidae (37 species) and Terebellidae (27 species).The presence of these listed species along the Algerian coast is compared with their occurrence in nine other areas of the Mediterranean Sea, in the Black Sea and in four other areas of the World Ocean. Comparison are also made with respect to the indications of the biogeographical origin for each species. The polychaete fauna of the Algerian coast is among the richest of the Mediterranean Sea and comparable to that reported for the French Mediterranean continental shelf and the Aegean Sea, but higher that that found in the bordering coastlines of Morocco and Tunisia. Most of the species have an Atlantic origin and are present in the western Mediterranean Sea; this inventory includes eight Non-Indigenous Polychaete Species in the Algerian waters.

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Diversity and geographical distribution of soft-bottom macrobenthos in the bay of Bou Ismail (Algeria, Mediterranean Sea)

Cited by 8 publications

References 23 publications

Macrobenthic fauna and the ecological status of a shellfish farm in the Mediterranean Sea (Algeria)

Macrobenthic fauna and the ecological status of a shellfish farm in the Mediterranean Sea (Algeria)

Tanaidacea (Crustacea: Malacostraca: Peracarida) from soft-sediment shelf habitats off the Mediterranean coast of Israel (Levant Sea) –taxonomy, faunistics and ecological aspects

Inventory and the biogeographical affinities of Annelida Polychaeta in theAlgerian coastline (Western Mediterranean)

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