Testing an otolith geochemistry approach to determine population structure and movements of European hake in the northeast Atlantic Ocean and Mediterranean Sea

2012 ◽  
Vol 125-126 ◽  
pp. 198-205 ◽  
Author(s):  
Susanne E. Tanner ◽  
Rita P. Vasconcelos ◽  
Henrique N. Cabral ◽  
Simon R. Thorrold
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean ◽  
European Hake

scholarly journals Genetic population structure of European anchovy in the Mediterranean Sea and the Northeast Atlantic Ocean using sequence analysis of the mitochondrial DNA control region

2013 ◽  
Vol 71 (2) ◽  
pp. 391-397 ◽  
Author(s):  
Jordi Viñas ◽  
Núria Sanz ◽  
Luis Peñarrubia ◽  
Rosa-Maria Araguas ◽  
José-Luis García-Marín ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Control Region ◽  
Genetic Population ◽  
Mitochondrial Dna Control Region ◽  
European Anchovy ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean ◽  
The Mediterranean

Abstract Viñas, J., Sanz, N., Peñarrubia, L., Araguas, R-M., García-Marín, J-L., Roldán, M-I., and Pla, C. 2014. Genetic population structure of European anchovy in the Mediterranean Sea and the Northeast Atlantic Ocean using sequence analysis of the mitochondrial DNA control region. – ICES Journal of Marine Science, 71: 391–397. The European anchovy (Engraulis encrasicolus) exhibits a complex population structure in the Mediterranean Sea and Northeast Atlantic Ocean. To resolve the population genetic structure of this species, we surveyed sequence variability in the mitochondrial (mtDNA) control region in samples (n = 563) from 13 locations in the Northeast Atlantic, the Bay of Biscay, and the Mediterranean Sea. Based on pairwise ΦSTs, SAMOVA, and multidimensional scaling, a complicated population structure composed of multiple populations emerged. Combining these results with those from previous population studies based on mitochondrial and nuclear markers, we identified nine genetically differentiated European anchovy populations: (i) Canary Islands; (ii) Cádiz; (iii) Alborán Sea; (iv) Garona; (v) Arcachon and Donostia; (vi) a large population in the northwestern Mediterranean, including Cadaqués, Gulf of Lyon, Elba, and Sicily; (vii) southern Adriatic; (viii) northern Adriatic; and (ix) Aegean Sea. We suggest that independent management strategies should be implemented for each genetically differentiated population, and, in cases where several fisheries stocks are recognized within an area of genetic homogeneity, each stock should be managed separately.

scholarly journals Growth patterns of the lanternfish Ceratoscopelus maderensis in the western Mediterranean Sea

2021 ◽  
Vol 85 (2) ◽  
pp. 71-80
Author(s):  
Enric Real ◽  
Ainhoa Bernal ◽  
Beatriz Morales-Nin ◽  
Balbina Molí ◽  
Itziar Alvarez ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Growth Patterns ◽  
Age And Growth ◽  
Mesopelagic Fish ◽  
Northeast Atlantic ◽  
Daily Increments ◽  
Western Mediterranean Sea ◽  
Northeast Atlantic Ocean

The age and growth patterns of the mesopelagic fish Ceratoscopelus maderensis (family Myctophidae) of the western Mediterranean Sea were described throughout its entire life cycle (from larvae to adult stages) using the sagittae otoliths of 59 individuals collected in December 2009. Three characteristic zones were identified along the cross-section of the sagittae (larval, metamorphic and juvenile-adult zones). Assuming growth rings as daily increments, the age of the analysed individuals (from 3.5 to 64 mm standard length [SL]) would range from 7 to 332 days. The relationship between the number of increments and the fish SL was fitted to a von Bertalanffy growth model (SL=70.5899Å~(1–exp(–0.0501(t+2.6705))). The growth pattern of C. maderensis in the western Mediterranean Sea was similar to that reported for this species in the northeast Atlantic Ocean. Though from a body size of 40-45 mm SL, growth rates declined more slowly in individuals from the western Mediterranean Sea, growth differences between these individuals and those from the northeast Atlantic Ocean were not statistically significant. This study provides new insights into the age and growth patterns of one of the most abundant mesopelagic fish species in the Mediterranean Sea that have clear implications for the study and management of marine ecosystems.

scholarly journals Regional patterns of δ 13 C and δ 15 N for European common cuttlefish ( Sepia officinalis ) throughout the Northeast Atlantic Ocean and Mediterranean Sea

2021 ◽  
Vol 8 (9) ◽  
pp. 210345
Author(s):  
R. J. David Wells ◽  
Jay R. Rooker ◽  
Piero Addis ◽  
Haritz Arrizabalaga ◽  
Miguel Baptista ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Distinct Pattern ◽  
Sampling Location ◽  
Sepia Officinalis ◽  
Regional Patterns ◽  
Northeast Atlantic ◽  
Sampling Locations ◽  
Northeast Atlantic Ocean ◽  
The Mediterranean

Stable isotope compositions of carbon and nitrogen (expressed as δ 13 C and δ 15 N) from the European common cuttlefish ( Sepia officinalis ) were measured in order to evaluate the utility of using these natural tracers throughout the Northeast Atlantic Ocean and Mediterranean Sea (NEAO-MS). Mantle tissue was obtained from S. officinalis collected from 11 sampling locations spanning a wide geographical coverage in the NEAO-MS. Significant differences of both δ 13 C and δ 15 N values were found among S. officinalis samples relative to sampling location. δ 13 C values did not show any discernable spatial trends; however, a distinct pattern of lower δ 15 N values in the Mediterranean Sea relative to the NEAO existed. Mean δ 15 N values of S. officinalis in the Mediterranean Sea averaged 2.5‰ lower than conspecifics collected in the NEAO and showed a decreasing eastward trend within the Mediterranean Sea with the lowest values in the most eastern sampling locations. Results suggest δ 15 N may serve as a useful natural tracer for studies on the population structure of S. officinalis as well as other marine organisms throughout the NEAO-MS.

European hake (Merluccius merluccius) in the Northeast Atlantic Ocean

Hakes ◽  
2015 ◽  
pp. 1-37 ◽  
Author(s):  
Maria Korta ◽  
Dorleta García ◽  
Marina Santurtún ◽  
Nerea Goikoetxea ◽  
Eider Andonegi ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Merluccius Merluccius ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean ◽  
European Hake

scholarly journals Elevated iron to nitrogen recycling by mesozooplankton in the Northeast Atlantic Ocean

2012 ◽  
Vol 39 (12) ◽  
pp. n/a-n/a ◽  
Author(s):  
Sarah L. C. Giering ◽  
Sebastian Steigenberger ◽  
Eric P. Achterberg ◽  
Richard Sanders ◽  
Daniel J. Mayor
Keyword(s):  
Atlantic Ocean ◽  
Nitrogen Recycling ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean

scholarly journals Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean

2004 ◽  
Vol 49 (6) ◽  
pp. 2095-2104 ◽  
Author(s):  
Stèphane Blain ◽  
Cècile Guieu ◽  
Hervè Claustre ◽  
Karine Leblanc ◽  
Thierry Moutin ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean ◽  
Major Nutrients

Seismic‐stratigraphic constraints on the age of the Faroe Islands Basalt Group, Faroe–Shetland region, Northeast Atlantic Ocean

2019 ◽  
Vol 31 (5) ◽  
pp. 841-865
Author(s):  
Jana Ólavsdóttir ◽  
Martyn S. Stoker ◽  
Lars O. Boldreel ◽  
Morten Sparre Andersen ◽  
Óluva R. Eidesgaard
Keyword(s):  
Atlantic Ocean ◽  
Faroe Islands ◽  
Northeast Atlantic ◽  
Northeast Atlantic Ocean
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