Intake of Essential Minerals and Metals via Consumption of Seafood from the Mediterranean Sea

2009 ◽  
Vol 72 (5) ◽  
pp. 1116-1120 ◽  
Author(s):  
M. M. STORELLI
Keyword(s):  
Body Weight ◽  
Dietary Intake ◽  
Mediterranean Sea ◽  
Health Risks ◽  
Marine Species ◽  
Essential Metals ◽  
Weekly Intake ◽  
Tolerable Weekly Intake ◽  
The Mediterranean ◽  
Species Specific

Edible marine species (fish and cephalopod molluscs) from the Mediterranean Sea were analyzed for their metal content (Hg, Cd, Pb, Cr, Cu, Zn, and Ni). Human health risks posed by these elements via dietary intake of seafood were assessed based on the provisional tolerable weekly intake, reference dose, and recommended dietary allowances. Metal concentrations varied widely among the different organisms, indicating species-specific accumulation. On a wet weight basis, the maximum concentrations of Hg were found in fish (1.56 μg g−1), and the maximum concentrations of cadmium were found in cephalopod molluscs (0.82 μg g−1), whereas for Pb the concentrations were generally low (fish, 0.01 to 1.18 μg g−1; cephalopod molluscs, 0.03 to 0.09 μg g−1). For the essential metals, cephalopods had higher concentrations (Cr, 0.40 μg g−1; Zn, 33.03 μg g−1; Cu, 23.77 μg g−1; Ni, 2.12 μg g−1) than did fish (Cr, 0.17 μg g−1; Zn, 8.43 μg g−1; Cu, 1.35 μg g−1; Ni, 1.13 μg g−1). The estimated weekly intake of Cd and Pb indicated increased health risks through the consumption of various seafoods. Conversely, a health risk was ascribed to the intake of Hg from consumption of certain fish, such as albacore (10.92 μg kg−1 body weight) and thornback ray (5.25 μg kg−1 body weight). Concerning the essential metals, cephalopod mollusc consumption made an important contribution to daily dietary intake of Cu, Zn, and Ni.

scholarly journals Investigation of Hg Content by a Rapid Analytical Technique in Mediterranean Pelagic Fishes

2018 ◽  
Author(s):  
Giuseppa Di Bella ◽  
Roberta Tardugno ◽  
Nicola Cicero
Keyword(s):  
Mediterranean Sea ◽  
Mediterranean Area ◽  
Pelagic Fish ◽  
Analytical Technique ◽  
Weekly Intake ◽  
Tolerable Weekly Intake ◽  
Direct Mercury Analyzer ◽  
Mercury Analyzer ◽  
Global Concern ◽  
The Mediterranean

Mercury (Hg) fish and seafood contamination is a global concern and needs worldwide sea investigations in order to protect consumers. The aim of this study was to investigate the Hg concentration by means of a rapid and simple analytical technique with direct Mercury Analyzer (DMA-80) in pelagic fish species, Tetrapturus belone (spearfish), Thunnus thynnus (tuna) and Xiphias gladius (swordfish) caught in the Mediterranean Sea. Hg contents were evaluated also in Salmo salar (salmon) as pelagic fish not belonging to the Mediterranean area. The results obtained were variable ranging between 0,015-2,562 mg kg-1 for T. thynnus specie, 0,477-3,182 mg kg-1 for X. gladius, 0,434-1,730 mg kg-1 for T. belone and 0,004-0,019 mg kg-1 for S. salar, respectively. The total Hg tolerable weekly intake (TWI) and % tolerable weekly intake (TWI%) values according to the European Food Safety Authority (EFSA) were calculated. The results highlighted that the pelagic species caught in the Mediterranean Sea should be constantly monitored due to their high Hg contents as well as their TWI and TWI% with respect to S. salar samples.

scholarly journals Investigation of Hg Content by a Rapid Analytical Technique in Mediterranean Pelagic Fishes

Separations ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 51 ◽  
Author(s):  
Giuseppa Di Bella ◽  
Roberta Tardugno ◽  
Nicola Cicero
Keyword(s):  
Mediterranean Sea ◽  
Mediterranean Area ◽  
Pelagic Fish ◽  
Analytical Technique ◽  
Weekly Intake ◽  
Tolerable Weekly Intake ◽  
Direct Mercury Analyzer ◽  
Mercury Analyzer ◽  
Global Concern ◽  
The Mediterranean

Mercury (Hg) fish and seafood contamination is a global concern and needs worldwide sea investigations in order to protect consumers. The aim of this study was to investigate the Hg concentration by means of a rapid and simple analytical technique with a direct Mercury Analyzer (DMA-80) in pelagic fish species, Tetrapturus belone (spearfish), Thunnus thynnus (tuna) and Xiphias gladius (swordfish) caught in the Mediterranean Sea. Hg contents were evaluated also in Salmo salar (salmon) as pelagic fish not belonging to the Mediterranean area. The results obtained were variable, ranging between 0.015–2.562 mg kg−1 for T. thynnus species, 0.477–3.182 mg kg−1 for X. gladius, 0.434–1.730 mg kg−1 for T. belone and 0.004–0.019 mg kg−1 for S. salar, respectively. The total Hg tolerable weekly intake (TWI) and tolerable weekly intake % (TWI%) values according to the European Food Safety Authority (EFSA) were calculated. The results highlighted that the pelagic species caught in the Mediterranean Sea should be constantly monitored due to their high Hg contents as well as their TWI and TWI% with respect to S. salar samples.

On a saddled snake eel Pisodonophis semicinctus (Osteichthyes: Ophichthidae) trawled in the Strait of Sicily (Mediterranean Sea)

2000 ◽  
Vol 80 (5) ◽  
pp. 951-952 ◽  
Author(s):  
Sergio Ragonese ◽  
Giovan Battista Giusto
Keyword(s):  
Body Weight ◽  
Mediterranean Sea ◽  
Bottom Trawl ◽  
Northern Coast ◽  
Rare Finding ◽  
Strait Of Sicily ◽  
Total Length ◽  
The Mediterranean

The occurrence in the Strait of Sicily of the saddled snake eel, Pisodonophis semicinctus (Osteichthyes: Ophichthidae), a rare finding for the Mediterranean Sea, is confirmed on the basis of one specimen caught off the northern coast of Tunisia in 1991. The specimen, 800 mm in total length and 457 g in body weight (preserved condition), was captured during a commercial bottom trawl hauled at 30 m next to Cape Bon (north of Tunisia). This represents the second and fourth documented record of this Atlantic intruder within the Strait of Sicily and the Mediterranean Sea, respectively.

scholarly journals Filling in knowledge gaps: Length–weight relations of 46 uncommon sharks and rays (Elasmobranchii) in the Mediterranean Sea

2021 ◽  
Vol 51 (3) ◽  
pp. 249-255
Author(s):  
Athanassios C. Tsikliras ◽  
Donna Dimarchopoulou
Keyword(s):  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Global Scale ◽  
Biological Information ◽  
Knowledge Gap ◽  
Museum Collections ◽  
Bayesian Hierarchical ◽  
The Mediterranean ◽  
Species Specific ◽  
Bayesian Hierarchical Method

Large sharks and rays are generally understudied in the Mediterranean Sea, thus leading to a knowledge gap of basic biological characteristics that are important in fisheries management and ecosystem modeling. Out of the 76 sharks and rays inhabiting the Mediterranean Sea, the length–weight relations (LWR) are available for 28 (37%) of them, usually for common small-sized species that are not protected and may be marketed. The aim of the presently reported study was to fill in the knowledge gap through the estimation of LWR of rare and uncommon sharks and rays in the Mediterranean Sea using the information from single records or few individuals. The analysis was based on a Bayesian hierarchical method for estimating length–weight relations in fishes that has been recently proposed for data-deficient species or museum collections and uses the prior knowledge and existing LWR studies to derive species-specific LWR parameters by body form. The use of this method was applied to single records of rare and uncommon species and here we report the LWR of 46 uncommon sharks and ray species, 14 of which are first reported LWR at a global scale and 21 are the first reported LWR for the Mediterranean Sea; the remaining 11 species are first time records for the western or eastern Mediterranean regions. Museum collections and sporadic catch records of rare emblematic species may provide useful biological information with the use of appropriate Bayesian methods.

scholarly journals The Portuguese Man-of-war, One of The Most Dangerous Marine Species, Has Always Entered The Mediterranean Sea: Strandings, Sightings And Museum Collections

2021 ◽  
Author(s):  
Rosario Badalamenti ◽  
Francesco Tiralongo ◽  
Vincenzo Arizza ◽  
Sabrina Lo Brutto
Keyword(s):  
Mediterranean Sea ◽  
Grey Literature ◽  
Marine Species ◽  
First Record ◽  
Central Mediterranean ◽  
Gulf Of Naples ◽  
Tourism Sector ◽  
The Mediterranean ◽  
Sea Area ◽  
Physalia Physalis

Abstract A search from different kinds of sources has been carried out to review the incidence of Physalia physalis, the Portuguese man-of-war, in the Mediterranean Sea; scientific and grey literature, social media, zoological museums were accessed. The records of the species were considered validated if documented with images or collected specimens. It was possible to date the putative first record of Physalia physalis in the Mediterranean Sea, thanks to a couple of colonies preserved in a historical collection, originating from the Gulf of Naples in 1914. Some massive strandings occurred in localities of the Alboran Sea, area of entrance from the Atlantic from where the species spread mainly along the Sicilian waters, in the central Mediterranean Sea. The records from the Italian maritime regions were then subdivided into three categories of risk according to the season of occurrence. These categories were created to assign a level of danger for swimmers to the sightings of Physalia physalis. The increasing sightings of such a poisonous organism in coastal waters can represent a risk to human health, and also to all those activities linked to the marine tourism sector. The involvement of citizens and touristic structures for the early detection of Physalia physalis can play a key role in preventing encounters with the species, allowing marine tourist facilities to operate within a range of reasonable security.

scholarly journals Growth rate rather than temperature affects the B / Ca ratio in the calcareous red alga <i>Lithothamnion corallioides</i>

2021 ◽  
Author(s):  
Giulia Piazza ◽  
Valentina A. Bracchi ◽  
Antonio Langone ◽  
Agostino N. Meroni ◽  
Daniela Basso
Keyword(s):  
Growth Rate ◽  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Growth Rates ◽  
Atlantic Coast ◽  
Light Availability ◽  
Marine Species ◽  
Coralline Algae ◽  
Seasonal Temperature ◽  
The Mediterranean

Abstract. The B / Ca ratio in calcareous marine species is informative of past seawater CO32− concentrations, but scarce data exist on B / Ca in coralline algae (CA). Recent studies suggest influences of temperature and growth rates on B / Ca, the effect of which could be critical for the reconstructions of surface ocean pH and atmospheric pCO2. In this paper, we present the first LA-ICP-MS analyses of Mg, Sr, Li and B in the CA Lithothamnion corallioides collected from different geographic settings and depths across the Mediterranean Sea and in the Atlantic Ocean. We produced the first data on temperature proxies (Mg, Li and Sr / Ca) and B / Ca in a CA species grown in different Basins (the Mediterranean Sea and the Atlantic Ocean), from shallow to deep waters (12 m, 40 m, 45 m and 66 m depth). We tested the B / Ca correlation with temperature proxies and growth rates, in order to evaluate their possible effect on B incorporation. Our results showed a growth rate influence on B / Ca, especially in the deepest sample (Pontian Isl., Italy; 66 m) and in the shallowest sample (Morlaix, Atlantic coast of France; 12 m), where the growth rates were respectively 0.11 mm/yr and 0.13 mm/yr and the B / Ca was respectively 462.8 ± 49.2 μmol/mol and 726.9 ± 102.8 μmol/mol. A positive correlation between B / Ca and the temperature proxies was found only in Morlaix, where the seasonal temperature variation (ΔT) was the highest (8.90 °C). These pieces of evidence suggest that growth rates, triggered by the different ΔT and light availability across depth, affect the B incorporation in L. corallioides.

scholarly journals Mediterranean Red Macro Algae Mats as Habitat for High Abundances of Serpulid Polychaetes

Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 265
Author(s):  
Felix I. Rossbach ◽  
Edoardo Casoli ◽  
Milan Beck ◽  
Christian Wild
Keyword(s):  
Species Richness ◽  
Mediterranean Sea ◽  
Habitat Type ◽  
Marine Species ◽  
Abundant Species ◽  
Posidonia Oceanica ◽  
Conservation Strategies ◽  
Tyrrhenian Sea ◽  
The Mediterranean ◽  
Taxonomic Groups

The Mediterranean Sea harbors more than 17,000 eukaryotic marine species, with several ecosystems recognized as biodiversity hotspots, such as Posidonia oceanica meadows. Recent research indicates that benthic mats formed by the fleshy red alga Phyllophora crispa are also associated with high species richness. Among key groups found in these mats are sessile polychaetes, which live as epiphytes on the red algae thalli. Knowledge of abundance, species richness, and spatial variation of polychaetes associated with these habitats is still scarce. We carried out a comparative assessment focusing on serpulid polychaetes within samples from P. crispa mats and neighboring P. oceanica meadows at six different sampling sites around Giglio Island (Tyrrhenian Sea, Italy). A total of 17 serpulid taxa were identified. The abundance of serpulids (5665 individuals m−2 of P. crispa mat) were similar to neighboring P. oceanica meadows (2304 individuals m−2 leaves and 5890 individuals m−2 shoots). The number of serpulid taxa was significantly higher in P. crispa mats (average 6.63 ± 1.32 taxa) compared to P. oceanica beds (average 1.56 ± 0.63 and 1.84 ± 1.04 taxa in leaves and shoots, respectively). Within habitat type, there were no significant differences in species richness between sites. The most abundant species found was Josephella marenzelleri (61% of individuals), while Vermiliopsis spp. and Bathyvermilia sp. were exclusively found in P. crispa samples. Our results highlight that P. crispa mats host an exceptional diversity and that these habitats should be included in conservation strategies. Further research should focus on the significance of other important taxonomic groups within these mats and evaluate the distribution of P. crispa in different regions of the Mediterranean Sea.

First report of Laurencia chondrioides (Ceramiales, Rhodophyta) and its potential to be an invasive in the eastern Mediterranean Sea

2014 ◽  
Vol 57 (6) ◽  
Author(s):  
Razy Hoffman ◽  
Marcelo Sternberg ◽  
Donatella Serio
Keyword(s):  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Marine Species ◽  
Mediterranean Coast ◽  
Red Seaweed ◽  
Eastern Mediterranean Sea ◽  
First Report ◽  
First Occurrence ◽  
The Mediterranean ◽  
Invasive Marine Species

AbstractThe Mediterranean coast of Israel is well known as a hotspot of invasive marine species, mostly from the Indian and Pacific oceans. Here, we report the first occurrence of the red seaweed

scholarly journals Impacts of climate change and species distribution modelling: Future scenarios to invasive alien lionfish distribution in the Mediterranean Sea

2019 ◽  
Vol 3 ◽  
Author(s):  
Cemal Turan
Keyword(s):  
Species Richness ◽  
Mediterranean Sea ◽  
Species Distribution ◽  
Marine Species ◽  
Species Distribution Modelling ◽  
Climatic Data ◽  
Niche Modelling ◽  
Distribution Modelling ◽  
Pterois Miles ◽  
The Mediterranean

The progress on species distribution modelling (SDM) methods has brought new insights into the field of biological invasion management. In particular, statistical niche modelling, for spatio-temporal predictions of marine species’ distribution, is an increasingly used tool, supporting efficient decision-making for prevention and conservation. Earth's climate has changed significantly in the last century and the number of alien species penetrating from Indo-Pacific Ocean and South part of the Atlantic in the Mediterranean will continue to increase over the next decades. The purpose of the present study was to predict the potential geographic distribution and expansion of invasive alien lionfish (Pterois miles and Pterois volitans) with ecological niche modelling along the Mediterranean Sea. Temporal and spatial occurrence data from the first occurrence of a species for each country with coast along the Mediterranean Sea, was used to develop robust predictions of species richness, since the capacity to predict spatial patterns of species richness remains largely unassessed in this region. Marine climatic data layers were collected from the Bio-ORACLE and MARSPEC global databases. Different statistical models were evaluated to establish if these could provide useful predictions of absolute and relative lionfish distribution and expansion. The findings are an important step towards validating the use of SDM for invasive alien lionfish in the Mediterranean Sea.

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