Genetic population structure and phylogeny of the common octopus Octopus vulgaris Cuvier, 1797 in the western Mediterranean Sea through nuclear and mitochondrial markers

Hydrobiologia ◽  
2017 ◽  
Vol 807 (1) ◽  
pp. 277-296 ◽  
Author(s):  
Riccardo Melis ◽  
Laura Vacca ◽  
Danila Cuccu ◽  
Marco Mereu ◽  
Alessandro Cau ◽  
...  
Keyword(s):  
Population Structure ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Genetic Population Structure ◽  
Octopus Vulgaris ◽  
Genetic Population ◽  
Mitochondrial Markers ◽  
Western Mediterranean Sea ◽  
The Common ◽  
Common Octopus

The genetic population structure of Thunnus thynnus (Linnaeus, 1758) in the Mediterranean Sea, a controversial issue

2019 ◽  
Vol 35 (2) ◽  
pp. 436-443
Author(s):  
Silvia Livi ◽  
Teresa Romeo ◽  
Sabina De Innocentiis ◽  
Claudia Greco ◽  
Pietro Battaglia ◽  
...  
Keyword(s):  
Population Structure ◽  
Mediterranean Sea ◽  
Controversial Issue ◽  
Genetic Population Structure ◽  
Thunnus Thynnus ◽  
Genetic Population ◽  
The Mediterranean

Mark–recapture investigation onOctopus vulgarisspecimens in an area of the central western Mediterranean Sea

2014 ◽  
Vol 95 (1) ◽  
pp. 131-138 ◽  
Author(s):  
Marco Mereu ◽  
Blondine Agus ◽  
Rita Cannas ◽  
Alessandro Cau ◽  
Elisabetta Coluccia ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Retention Rate ◽  
Western Mediterranean ◽  
Individual Variability ◽  
Medium Size ◽  
Octopus Vulgaris ◽  
Daily Growth ◽  
Mark Recapture ◽  
Western Mediterranean Sea ◽  
Growth Increments

T-bar anchor tags and Petersen discs were used during a preliminary mark–recapture experiment in the wild on 268Octopus vulgaris.Discs, despite causing some injuries, were characterized by a quicker healing (within 5 days) and a higher retention rate than T-bar tags (about 97% versus 22%, respectively), therefore they were considered the best technique for tagging the animals in the subsequent growth studies. From 2010 to 2013, a total of 1604O. vulgaris(74.4% with a total weight <300 g) were tagged with discs and released in an area of the central western Sardinian Sea (western Mediterranean Sea). Ninety-one specimens were recaptured after 4–63 days of freedom, 59 of which (31 males and 28 females) showed positive growth increments after a minimum time of 8 days at liberty. In general, a high individual variability (0.96–9.09 g day−1) and higher mean daily growth rates in females (3.07–3.65 g day−1) than in males (2.08–2.98 g day−1) were recorded, but this difference was not statistically significant. Using tag–recapture data, the first exponential growth curves for both sexes ofOctopus vulgarisof small–medium size from the Mediterranean Sea were obtained, and compared with those available in the literature for the species.

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