Can Citizen Science Survey Non-indigenous Fish Species in the Eastern Mediterranean Sea?

2013 ◽  
Vol 53 (1) ◽  
pp. 172-180 ◽  
Author(s):  
P. Bodilis ◽  
P. Louisy ◽  
M. Draman ◽  
H. O. Arceo ◽  
P. Francour
Keyword(s):  
Mediterranean Sea ◽  
Citizen Science ◽  
Fish Species ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Sea ◽  
Indigenous Fish Species

scholarly journals Filling the Gap of Data-Limited Fish Species in the Eastern Mediterranean Sea: A Contribution by Citizen Science

2020 ◽  
Vol 8 (2) ◽  
pp. 107 ◽  
Author(s):  
Roxani Naasan Aga Spyridopoulou ◽  
Joachim Langeneck ◽  
Dimitris Bouziotis ◽  
Ioannis Giovos ◽  
Periklis Kleitou ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Citizen Science ◽  
Citizen Participation ◽  
Fish Species ◽  
Eastern Mediterranean ◽  
Seawater Temperature ◽  
Anthropogenic Activity ◽  
Marine Biodiversity ◽  
Eastern Mediterranean Sea ◽  
Biodiversity Knowledge

The biodiversity of the Mediterranean Sea is rapidly changing due to anthropogenic activity and the recent increase of seawater temperature. Citizen science is escalating as an important contributor in the inventory of rare and data-limited species. In this study, we present several records of five data-limited native fish species from the eastern Mediterranean Sea: Alectis alexandrina (Geoffroy Saint-Hilaire, 1817), Ranzania laevis (Pennant, 1776), Dalatias licha (Bonnaterre, 1788), Lophotus lacepede (Giorna, 1809), and Sudis hyalina (Rafinesque, 1810). All of the records were collected by a participatory process involving fishers and validated by associated taxonomic experts of the citizen science programme “Is it Alien to you? Share it!!!”. This study fills an important gap for the distribution of the reported species and signifies the important role of citizen participation as a tool for extending marine biodiversity knowledge and fisheries management in an area with several gaps of knowledge on targeted and non-targeted species.

Assessing the spatial distribution of five non-commercial fish species in the Aegean Sea (Greece, eastern Mediterranean Sea) based on discards data

2021 ◽  
Vol 44 ◽  
pp. 101736
Author(s):  
Smaragda Despoti ◽  
Konstantinos I. Stergiou ◽  
Athanassios Machias ◽  
Vassiliki Vassilopoulou ◽  
Konstantinos Tsagarakis ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Mediterranean Sea ◽  
Fish Species ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Commercial Fish ◽  
Eastern Mediterranean Sea

scholarly journals Length-Weight Relationship of 60 Fish Species From the Eastern Mediterranean Sea, Egypt (GFCM-GSA 26)

2021 ◽  
Vol 8 ◽  
Author(s):  
Sahar F. Mehanna ◽  
Alam Eldeen Farouk
Keyword(s):  
Mediterranean Sea ◽  
Fish Species ◽  
Eastern Mediterranean ◽  
Demersal Fish ◽  
Fishing Gear ◽  
Commercial Catch ◽  
Eastern Mediterranean Sea ◽  
Trawl Fishing ◽  
The Mediterranean ◽  
Relationship Of

Length-weight relationships (LWRs) are described for 60 important pelagic and demersal fish species caught during fishing surveys using trawl fishing gear in the Eastern Mediterranean, Egypt (General Fisheries Commission for the Mediterranean GFCM-GSA 26), and the data collected from the commercial catch during the period from July 2017 to December 2018. Linear regression using natural logarithmic transformation data was performed to calculate the a and b coefficients of LWR for 60 fish populations covering 23 families, 43 genera, and 60 species inhabiting GSA 26. The samples size, minimum and maximum lengths and weights with their mean and SD, LWR constants, ± 95% confidence interval (CI) of b, r2, and the type of growth were calculated and summarized. This study reports the first LWR estimates for 35 species in the Egyptian waters of the Mediterranean Sea.

scholarly journals Comparison of Hydrocarbon-Degrading Consortia from Surface and Deep Waters of the Eastern Mediterranean Sea: Characterization and Degradation Potential

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2246
Author(s):  
Georgia Charalampous ◽  
Efsevia Fragkou ◽  
Konstantinos A. Kormas ◽  
Alexandre B. De Menezes ◽  
Paraskevi N. Polymenakou ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Oil Spills ◽  
Eastern Mediterranean ◽  
Sole Source ◽  
Eastern Mediterranean Sea ◽  
Deep Waters ◽  
Degradation Rates ◽  
Polycyclic Aromatic ◽  
Set Up

The diversity and degradation capacity of hydrocarbon-degrading consortia from surface and deep waters of the Eastern Mediterranean Sea were studied in time-series experiments. Microcosms were set up in ONR7a medium at in situ temperatures of 25 °C and 14 °C for the Surface and Deep consortia, respectively, and crude oil as the sole source of carbon. The Deep consortium was additionally investigated at 25 °C to allow the direct comparison of the degradation rates to the Surface consortium. In total, ~50% of the alkanes and ~15% of the polycyclic aromatic hydrocarbons were degraded in all treatments by Day 24. Approximately ~95% of the total biodegradation by the Deep consortium took place within 6 days regardless of temperature, whereas comparable levels of degradation were reached on Day 12 by the Surface consortium. Both consortia were dominated by well-known hydrocarbon-degrading taxa. Temperature played a significant role in shaping the Deep consortia communities with Pseudomonas and Pseudoalteromonas dominating at 25 °C and Alcanivorax at 14 °C. Overall, the Deep consortium showed a higher efficiency for hydrocarbon degradation within the first week following contamination, which is critical in the case of oil spills, and thus merits further investigation for its exploitation in bioremediation technologies tailored to the Eastern Mediterranean Sea.

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