scholarly journals Differences in macroelements, trace elements and toxic metals between wild and captive-reared greater amberjack (Seriola dumerili) from the Mediterranean Sea

2021 ◽  
Vol 170 ◽  
pp. 112637
Author(s):  
Enrique Lozano-Bilbao ◽  
Ninoska Adern ◽  
Arturo Hardisson ◽  
Dailos González-Weller ◽  
Carmen Rubio ◽  
...  
Keyword(s):  
Trace Elements ◽  
Mediterranean Sea ◽  
Toxic Metals ◽  
Seriola Dumerili ◽  
Greater Amberjack ◽  
The Mediterranean

scholarly journals Introduction to the project DUNE, a DUst experiment in a low Nutrient, low chlorophyll Ecosystem

2013 ◽  
Vol 10 (7) ◽  
pp. 12491-12527 ◽  
Author(s):  
C. Guieu ◽  
F. Dulac ◽  
C. Ridame ◽  
P. Pondaven
Keyword(s):  
Trace Elements ◽  
Atmospheric Deposition ◽  
Mediterranean Sea ◽  
Surface Waters ◽  
Carbon Pump ◽  
Mesocosm Experiments ◽  
The Mediterranean ◽  
Atmospheric Inputs ◽  
Oligotrophic Ecosystem ◽  
The Impact

Abstract. The main goal of the project DUNE was to estimate the impact of atmospheric deposition on an oligotrophic ecosystem based on mesocosm experiments simulating strong atmospheric inputs of Aeolian dust. Atmospheric deposition is now recognized as a significant source of macro- and micro-nutrients for the surface ocean, but the quantification of its role on the biological carbon pump is still poorly determined. We proposed in DUNE to investigate the role of atmospheric inputs on the functioning of an oligotrophic system particularly well adapted to this kind of study: the Mediterranean Sea. The Mediterranean Sea – etymologically, sea surrounded by land – is submitted to atmospheric inputs that are very variable both in frequency and intensity. During the thermal stratification period, only atmospheric deposition is prone to fertilize Mediterranean surface waters which has become very oligotrophic due to the nutrient depletion (after the spring bloom). This paper describes the objectives of DUNE and the implementation plan of a series of mesocosms experiments during which either wet or dry and a succession of two wet deposition fluxes of 10 g m−2 of Saharan dust have been simulated. After the presentation of the main biogeochemical initial conditions of the site at the time of each experiment, a general overview of the papers published in this special issue is presented, including laboratory results on the solubility of trace elements in erodible soils in addition to results from the mesocosm experiments. Our mesocosm experiments aimed at being representative of real atmospheric deposition events onto the surface of oligotrophic marine waters and were an original attempt to consider the vertical dimension in the study of the fate of atmospheric deposition within surface waters. Results obtained can be more easily extrapolated to quantify budgets and parameterize processes such as particle migration through a "captured water column". The strong simulated dust deposition events were found to impact the dissolved concentrations of inorganic dissolved phosphorus, nitrogen, iron and other trace elements. In the case of Fe, adsorption on sinking particles yields a decrease in dissolved concentration unless binding ligands were produced following a former deposition input and associated fertilization. For the first time, a quantification of the C export induced by the aerosol addition was possible. Description and parameterization of biotic (heterotrophs and autotrophs, including diazotrophs) and abiotic processes (ballast effect due to lithogenic particles) after dust addition in sea surface water, result in a net particulate organic carbon export in part controlled by the "lithogenic carbon pump".

Atmospheric inputs of trace elements and the geochemistry of the Mediterranean sea

1988 ◽  
Vol 70 (1-2) ◽  
pp. 194
Author(s):  
P. Buat-Menard ◽  
E. Remoudaki ◽  
J. Davies ◽  
C. Quetel ◽  
U. Ezat ◽  
...  
Keyword(s):  
Trace Elements ◽  
Mediterranean Sea ◽  
The Mediterranean ◽  
Atmospheric Inputs

scholarly journals Evaluation of Praziquantel Efficacy against Zeuxapta Seriolae Infections in Greater Amberjack, Seriola Dumerili

2021 ◽  
Vol 11 (10) ◽  
pp. 4656
Author(s):  
George Rigos ◽  
Dimitra Kogiannou ◽  
Antigoni Vasilaki ◽  
Mado Kotsiri
Keyword(s):  
Water Temperature ◽  
Control Group ◽  
Seriola Dumerili ◽  
Greater Amberjack ◽  
The Mediterranean

The aim of this study was to evaluate the efficacy of dietary praziquantel (PZQ), a promising fish anthelminthic, against Zeuxapta seriolae, a lethal ectoparasite of greater amberjack (Seriola dumerili Risso) farmed in the Mediterranean and elsewhere. The trial was carried out in small cages (3 m3) in situ, harbouring fish (125 ± 14 g) naturally infected with Z. seriolae, at 25 ± 1 °C water temperature. Praziquantel-medicated diet (150 mg PZQ/kg fish) was delivered for three days against a control group. Measurement of both adults and oncomiracidia of Z. seriolae in sampled gill arches revealed significant differences between the tested groups (PZQ: 19.3 ± 9.8 vs. Control: 3.8 ± 6.3). Considering an estimated efficacy of 80.4% in the medicated fish, the present study indicates that oral PZQ treatments can confront Z. seriolae infections considerably in farmed greater amberjack and, perhaps, replace the commonly used hydrogen peroxidase baths.

scholarly journals An additional record of the non-indigenous species (NIS) Seriola fasciata from the southern coast of Sicily (Central Mediterranean Sea)

2020 ◽  
Vol 61 (2) ◽  
pp. 223-230
Author(s):  
Michele Luca Geraci ◽  
Fabio Falsone ◽  
Danilo Scannella ◽  
Sergio Vitale
Keyword(s):  
Spatial Distribution ◽  
Mediterranean Sea ◽  
Indigenous Species ◽  
Southern Coast ◽  
Central Mediterranean ◽  
Seriola Dumerili ◽  
Central Mediterranean Sea ◽  
Greater Amberjack ◽  
Non Indigenous Species

An additional record of the non-indigenous species (NIS) Seriola fasciata from the southern coast of Sicily (Central Mediterranean Sea) is here described in this note. The catch record is the first in the area and confirms the key role of the area for NIS spreading. In addition, an updated map of its spatial distribution is provided as well as a discussion on the possible misidentification and competition with the native greater amberjack Seriola dumerili.

Trace elements in seafood from the Mediterranean sea: An exposure risk assessment

2018 ◽  
Vol 115 ◽  
pp. 13-19 ◽  
Author(s):  
Chiara Copat ◽  
Alfina Grasso ◽  
Maria Fiore ◽  
Antonio Cristaldi ◽  
Pietro Zuccarello ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Trace Elements ◽  
Mediterranean Sea ◽  
Exposure Risk ◽  
The Mediterranean ◽  
Exposure Risk Assessment

Past, current and projected atmospheric emissions of trace elements in the mediterranean region

1999 ◽  
Vol 39 (12) ◽  
pp. 1-7 ◽  
Author(s):  
N. Pirrone ◽  
P. Costa ◽  
J. M. Pacyna
Keyword(s):  
Trace Elements ◽  
Mediterranean Sea ◽  
Fossil Fuels ◽  
Ferrous Metal ◽  
Temporal Variations ◽  
Emission Source ◽  
Anthropogenic Sources ◽  
Case Scenario ◽  
The Mediterranean ◽  
Source Category

This report presents past and current annual emissions of Pb, Ni, Cu, Cd, and V to the atmosphere from major anthropogenic sources in the Mediterranean Sea region and discusses projected emissions for the 1998-2015 period. Gasoline combustion still represents the major emission source of Pb in the urban environment, however its contribution to the regional atmospheric budget is following a downward trend. On a country-by-country basis, spatial distributions of current Pb emissions show that Syria is the leading emitting country with 18.7% of the regional total, followed by Italy (12.3%), France (11.2%), Turkey (11.1%), Egypt (7.5%), Yugoslavia (6.3%), Spain (6.2%), Libya (5.5%), Algeria (5.1%), Israel (4.0%), Bulgaria (3.1%), Morocco (2.3%), Lebanon (2.2%), Greece (2.1%), Jordan (1.1%), Tunisia (0.5%), Cyprus (0.5%), Albania (0.3%). The emission of trace elements from the combustion of fossil fuels as well as from primary and secondary non-ferrous metal smelters represents an important source of Pb, Ni, Cu, Cd and V in the region as a whole. Greece, Tunisia and Lebanon are the major per-capita contributors of Pb released to the regional atmosphere, whereas over 50% of Ni is released from anthropogenic sources in Lebanon, Tunisia, Bulgaria and Cyprus. Cadmium emissions are significant in Lebanon, Tunisia and Bulgaria, whereas Libya is the major emitter of Cu in the region. Annual emissions in the Mediterranean Sea region are compared with those derived for other regions and the variations in emission patterns by source category are discussed. The projected emissions of trace elements up to the 2015 are estimated considering an upper and lower case scenario in the temporal variations of the control efficiency of major emission source categories.

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