scholarly journals First observations on cave breeding in Salamandra algira splendens from north-eastern Morocco

2019 ◽  
pp. 34-37
Author(s):  
Axel Hernandez
Keyword(s):  
Breeding Sites ◽  
Thermal Refugia ◽  
The North ◽  
North Eastern ◽  
Middle Atlas ◽  
The Mediterranean ◽  
Eastern Morocco

Two Moroccan subspecies of Salamandra algira were recently observed in caves - S. algira splendens and S. algira spelaea. Here, I report the first observations of cave breeding in S. algira splendens, in the Chaâra and Friouato caves of the north-eastern Middle Atlas (Taza region, Morocco). Twenty-two salamander and newt species are known to be facultative or obligate cave-dwellers in the Mediterranean ecoregion. They can inhabit or breed in caves so avoiding hot and very dry summer conditions. Caves with groundwater and stable humidity act as thermal refugia, winter or summer shelters, hiding places, feeding areas or, in some cases, as regular breeding sites.

Verruca stroemia and Verruca spengleri (Crustacea: Cirripedia): distribution in the north-eastern Atlantic and the Mediterranean Sea

2003 ◽  
Vol 83 (1) ◽  
pp. 89-93 ◽  
Author(s):  
Paulo S. Young ◽  
Helmut Zibrowius ◽  
Ghazi Bitar
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Geographic Distribution ◽  
Deep Water ◽  
Southern Spain ◽  
The Black Sea ◽  
The North ◽  
North Eastern ◽  
The Mediterranean ◽  
Gorringe Bank

The geographic distribution of Verruca stroemia and V. spengleri are reviewed. Verruca stroemia ranges from the White, Barents, Norwegian, and North Seas south to Portugal to the Algarve and to Gorringe Bank. All of the records of this species from the Mediterranean Sea are considered to be V. spengleri. Verruca spengleri occurs in the Azores and Madeira archipelagos, in southern Spain (Cádiz), throughout the Mediterranean Sea from Gibraltar to Lebanon, and in the Black Sea. But a distinct deep-water Verruca species seems to occur in the deep Mediterranean.

Fishes of the North-Eastern Atlantic and the Mediterranean. Vol. 1

Copeia ◽  
1986 ◽  
Vol 1986 (1) ◽  
pp. 266 ◽  
Author(s):  
Alwyne Wheeler ◽  
P. J. P. Whitehead ◽  
M.-L. Bauchot ◽  
J.-C. Hureau ◽  
J. Nielsen ◽  
...  
Keyword(s):  
The North ◽  
North Eastern ◽  
The Mediterranean

Illustrated Key to Ampelisca Species from the North-Eastern Atlantic

1988 ◽  
Vol 68 (4) ◽  
pp. 659-676 ◽  
Author(s):  
Jean-Claude Dauvin ◽  
Denise Bellan-Santini
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Mediterranean Sea ◽  
Intertidal Zone ◽  
Atlantic Coast ◽  
The North ◽  
North Eastern ◽  
The Mediterranean

The genus Ampelisca comprises more than 150 species and is one of the more important benthic genus of marine amphipods. New species are regularly added (Barnard & Agard 1986; Bellan-Santini & Marques, 1986; Goeke, 1987). Ampelisca are found from the intertidal zone to abyssal depths but most of them live on the continental shelf. In spite of many studies, it is often difficult to distinguish some species which are morphologically similar. In the last ten years, twenty-two species have been described from the north-eastern Atlantic (BellanSantini & Kaïm-Malka, 1977; Bellan-Santini & Dauvin, 1981, 1986; Dauvin & Bellan-Santini, 1982, 1985; Bellan-Santini & Marques, 1986). Materials come from MNHN of Paris collection, collected by Chevreux (1894–1924) (Dauvin & Bellan-Santini, 1985, 1986) and specimens collected during the last 25 years. All these new species are described from the Atlantic coast from northern Brittany to the Sahara and from the Mediterranean Sea.

Age-related trends in otolith chemistry of Merluccius merluccius from the north-eastern Atlantic Ocean and the western Mediterranean Sea

2005 ◽  
Vol 56 (5) ◽  
pp. 599 ◽  
Author(s):  
B. Morales-Nin ◽  
S. C. Swan ◽  
J. D. M. Gordon ◽  
M. Palmer ◽  
A. J. Geffen ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Western Mediterranean ◽  
Elemental Concentrations ◽  
The Core ◽  
The North ◽  
Western Mediterranean Sea ◽  
Growth Increments ◽  
Age Related ◽  
North Eastern ◽  
The Mediterranean

Sagittal otoliths of European hake obtained from five geographic locations in the north-eastern Atlantic and western Mediterranean were examined using laser ablation and inductively coupled plasma mass spectrometry. Otolith sections were analysed for the isotopes 24Mg, 55Mn, 66Zn, 85Rb, 86Sr, 138Ba and 208Pb, measured relative to 43Ca counts. These analyses considered only age 0 (core area) and ages 1 to 3. Age-related trends in otolith elemental composition were observed in hake from all areas, but were masked by variability between locations. Elemental concentrations generally decreased outside the core, with some increase at age 3. The composition of the otolith core was very distinct from that of the other growth increments. In the Mediterranean, part of this differentiation was a result of Mn, which was present in the core at high concentrations compared with the rest of the otolith. Mediterranean otoliths also had higher concentrations of Sr, Zn and Ba in the core. For most samples a similar trend was observed, although samples from one of the Mediterranean areas showed some differences, mainly in the concentrations of Mg and Sr. These results provide new empirical evidence of the variation in elemental concentrations across hake otoliths with age, at least throughout the first 3 years of life.

From Seismic Monitoring to Tsunami Warning in the Mediterranean Sea

2021 ◽  
Author(s):  
Alessandro Amato ◽  
Antonio Avallone ◽  
Roberto Basili ◽  
Fabrizio Bernardi ◽  
Beatriz Brizuela ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Lessons Learned ◽  
Tsunami Warning ◽  
Member States ◽  
The North ◽  
Last Mile ◽  
North Eastern ◽  
Tsunami Risk ◽  
The Mediterranean ◽  
Tsunami Warnings

Abstract The Italian Tsunami Alert Center based at the Istituto Nazionale di Geofisica e Vulcanologia (CAT-INGV) has been monitoring the Mediterranean seismicity in the past 8 yr to get fast and reliable information for seismically induced tsunami warnings. CAT-INGV is a tsunami service provider in charge of monitoring the seismicity of the Mediterranean Sea and of alerting Intergovernmental Oceanographic Commission (IOC)/UNESCO subscriber Member States and the Italian Department of Civil Protection of a potentially impending tsunami, in the framework of the Tsunami Warning and Mitigation System in the North-eastern Atlantic, the Mediterranean and connected seas (NEAMTWS). CAT-INGV started operating in 2013 and became operational in October 2016. Here, after describing the NEAMTWS in the framework of the global effort coordinated by IOC/UNESCO, we focus on the tsunami hazard in the Mediterranean Sea. We then describe CAT-INGV mandate, functioning, and operational procedures. Furthermore, the article discusses the lessons learned from past events occurring in the Mediterranean Sea, such as the Kos-Bodrum in 2017 (Mw 6.6) and the Samos-Izmir in 2020 (Mw 7.0) earthquakes, which generated moderately damaging tsunamis. Based on these lessons, we discuss some potential improvements for the CAT-INGV and the NEAMTWS, including better seismic and sea level instrumental coverage. We emphasize the need for tsunami risk awareness raising, better preparation, and full implementation of the tsunami warning “last-mile” to foster the creation of a more integrated, interoperable, and sustainable risk reduction framework. If we aim to be better prepared for the next tsunami, these important challenges should be prioritized in the agenda of the IOC/UNESCO Member States and the European Commission.

scholarly journals Securing Access to Drinking Water in North-Eastern Morocco: The Example of the Taourirt-Oujda Corridor

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 928
Author(s):  
Halima Jounaid ◽  
Taha Attou ◽  
Toufik Remmal ◽  
Aimad Bouaziz
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Surface Waters ◽  
Groundwater Resources ◽  
Drinking Water Supply ◽  
Geographical Information ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Eastern Morocco

Taourit-Oujda corridor (T.O.C.) is a geological entity of north-eastern Morocco with a total area of 4000 Km2. The drinking water supply in this arid region still faces challenges that meet a growing demand for a shortage of fresh water. This shortage is mainly due to the scarcity and irregularity of the precipitations, the overexploitation of the water resources, and the decrease of the capacity of storage dams that are the main source of drinking water supply in this area. This work aims at estimating deficit (to 2040) for drinking water provided by Machraa Hammadi dam and proposing favourable drilling sites to strengthen drinking water supply through the identification of groundwater resources that can be used in quantity and quality. To do this, a multi-criteria analysis (MCA) covering geological, hydrogeological and hydro-chemical aspects using the Geographical Information System (GIS) was carried out. This study shows that T.O.C. aquifer is more productive in the south-west of it, in the centre near the El Aioun municipality and in the north-east at the town of Sidi Bouhouria. According to Moroccan standards, defining the quality norms of surface waters, waters destined for irrigation, and of surface waters used for the production of drinking water, the groundwater in the center and north-east areas is also with good to medium overall quality groundwater.

scholarly journals Pomological Characterization of Main Almond Cultivars from the North Eastern Morocco

2018 ◽  
Vol 19 (4) ◽  
pp. 413-422 ◽  
Author(s):  
Reda Melhaoui ◽  
Mohamed Addi ◽  
Nadia Houmy ◽  
Malika Abid ◽  
Atika Mihamou ◽  
...  
Keyword(s):  
The North ◽  
North Eastern ◽  
Eastern Morocco
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