scholarly journals Phytogeographic distribution groups of benthic marine algae in the North Atlantic Ocean. A review of experimental evidence from life history studies

1982 ◽  
Vol 35 (2) ◽  
pp. 153-214 ◽  
Author(s):  
C. Hoek
Keyword(s):  
Life History ◽  
Atlantic Ocean ◽  
Experimental Evidence ◽  
North Atlantic ◽  
Marine Algae ◽  
North Atlantic Ocean ◽  
The North ◽  
The North Atlantic

scholarly journals Otolith chemistry as an indicator of movements of albacore (Thunnus alalunga) in the North Atlantic Ocean

2016 ◽  
Vol 67 (7) ◽  
pp. 1002 ◽  
Author(s):  
Igaratza Fraile ◽  
Haritz Arrizabalaga ◽  
Josu Santiago ◽  
Nicolas Goñi ◽  
Igor Arregi ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Life History ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
The North ◽  
Otolith Core ◽  
Thunnus Alalunga ◽  
The North Atlantic ◽  
Migratory Patterns

Albacore (Thunnus alalunga) in the North Atlantic Ocean is currently managed as a single well-mixed stock, although this assumption remains contentious. We measured stable isotopes (δ13C and δ18O) and trace elements (Mg, Mn, Sr, Ba) in otoliths of albacore collected from two feeding grounds, namely the Bay of Biscay and Atlantic offshore waters, and compared them among sampling locations and life history stages. Measurements in otolith core, post-core and edge were used to determine whether albacore from these two regions have the same nursery origin and migratory patterns. We found no clear evidence of distinct nursery grounds based on otolith core chemistry, but Sr:Ca and Mg:Ca were different in the post-core portions of albacore from the two locations, suggesting residency in different regions during the early juvenile stage. Otolith edge chemistry, particularly stable isotopes and Sr:Ca, proved to be a valuable tool for classifying individuals to their capture locations. Annual cycles of Sr:Ca ratios were visible along life history transects, likely reflecting migratory patterns between water masses of differing salinity, but the timing of Sr:Ca cycles differed between the two groups. Differentiation in trace element concentrations in the otolith post-core and the timing of Sr:Ca cycles suggest the occurrence of two migratory contingents of albacore in the north-east Atlantic Ocean.

scholarly journals The North Atlantic Ocean as habitat for Calanus finmarchicus: Environmental factors and life history traits

2014 ◽  
Vol 129 ◽  
pp. 244-284 ◽  
Author(s):  
Webjørn Melle ◽  
Jeffrey Runge ◽  
Erica Head ◽  
Stéphane Plourde ◽  
Claudia Castellani ◽  
...  
Keyword(s):  
Life History ◽  
Environmental Factors ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
Life History Traits ◽  
North Atlantic Ocean ◽  
Calanus Finmarchicus ◽  
The North ◽  
The North Atlantic

Spatiotemporal evolution of the chlorophyll a trend in the North Atlantic Ocean

2018 ◽  
Vol 612 ◽  
pp. 1141-1148 ◽  
Author(s):  
Min Zhang ◽  
Yuanling Zhang ◽  
Qi Shu ◽  
Chang Zhao ◽  
Gang Wang ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Chlorophyll A ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Spatiotemporal Evolution ◽  
The North ◽  
The North Atlantic
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