Spatio‐temporal evaluation of the population structure of the bigtooth corvina Isopisthus parvipinnis from Southwest Atlantic Ocean using otolith shape signatures

2020 ◽  
Vol 36 (4) ◽  
pp. 439-450 ◽  
Author(s):  
Natasha Travenisk Hoff ◽  
June Ferraz Dias ◽  
Maria de Lourdes Zani‐Teixeira ◽  
Alberto Teodorico Correia
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Southwest Atlantic ◽  
Otolith Shape ◽  
Shape Signatures ◽  
Spatio Temporal

Population structure of the bigtooth corvina Isopisthus parvipinnis from the Southwest Atlantic Ocean as determined by whole-body morphology

2020 ◽  
Vol 39 ◽  
pp. 101379
Author(s):  
Natasha Travenisk Hoff ◽  
June Ferraz Dias ◽  
Maria de Lourdes Zani-Teixeira ◽  
Marcelo Soeth ◽  
Alberto Teodorico Correia
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Whole Body ◽  
Southwest Atlantic ◽  
Body Morphology

scholarly journals Population structure of the European anchovy, Engraulis encrasicolus, in the SW Mediterranean Sea, and the Atlantic Ocean: evidence from otolith shape analysis

2014 ◽  
Vol 71 (9) ◽  
pp. 2429-2435 ◽  
Author(s):  
Mahmoud Bacha ◽  
Sherif Jemaa ◽  
Azzedine Hamitouche ◽  
Khalef Rabhi ◽  
Rachid Amara
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Shape Analysis ◽  
Genetic Studies ◽  
European Anchovy ◽  
Otolith Shape ◽  
Otolith Shape Analysis ◽  
Engraulis Encrasicolus ◽  
European Anchovy Engraulis Encrasicolus

Abstract Understanding the influence of oceanographic features on the structure of fish population is of basic importance to population dynamics studies and fisheries management. The European anchovy (Engraulis encrasicolus) exhibits a complex population structure which has produced conflicting results in previous genetic studies. This study examines the variability in the shape of the anchovy's otolith as a tool for identifying different stocks, and investigates the effects of oceanographic features on population structure. Anchovies were analysed from seven locations in the SW Mediterranean Sea and Atlantic Ocean along the northwestern African (Morocco) and Portuguese (Bay of Cadiz) coasts. A combination of otolith shape indices and elliptic Fourier descriptors were investigated by multivariate statistical procedures. Within the studied area, three distinct anchovy stocks were identified: the Algero-Provençal Basin, the southern Alboran Sea, and the Atlantic Ocean (Morocco and Gulf of Cadiz). The separation of the stocks was based on non-parametric discriminant analysis returning a classification percentage. Over 81% of the separation of the stocks could be explained by oceanographic features. Shape variability of anchovy otoliths was associated with the presence of the Almeria-Oran front, and the strait of Gibraltar. The Alboran stock was distinct from the Algero-Provençal Basin and from the closest Atlantic stocks (Gulf of Cadiz or Atlantic coast of Morocco). Results are discussed and compared with those previously obtained by genetic studies. This study supports the efficiency of otolith shape analysis for the stock identification of anchovy, and highlights the role of oceanographic features in stock separation.

Stock structure of Atlantic spadefish Chaetodipterus faber from Southwest Atlantic Ocean inferred from otolith elemental and shape signatures

2019 ◽  
Vol 211 ◽  
pp. 81-90 ◽  
Author(s):  
Marcelo Soeth ◽  
Henry Louis Spach ◽  
Felippe Alexandre Daros ◽  
Johnatas Adelir-Alves ◽  
Ana Claudia Oliveria de Almeida ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Stock Structure ◽  
Southwest Atlantic ◽  
Shape Signatures

Benthic communities in the Southwest Atlantic Ocean: Conservation value of animal forests at the Burdwood Bank slope

2020 ◽  
Vol 30 (3) ◽  
pp. 426-439 ◽  
Author(s):  
Laura Schejter ◽  
Gabriel Genzano ◽  
Esteban Gaitán ◽  
Carlos D. Perez ◽  
Claudia S. Bremec
Keyword(s):  
Atlantic Ocean ◽  
Benthic Communities ◽  
Conservation Value ◽  
Southwest Atlantic ◽  
Bank Slope ◽  
Burdwood Bank ◽  
Ocean Conservation

Use of satellite imagery to identify southern right whales ( Eubalaena australis ) on a Southwest Atlantic Ocean breeding ground

2021 ◽  
Author(s):  
Audrey A. Corrêa ◽  
João H. Quoos ◽  
André S. Barreto ◽  
Karina R. Groch ◽  
Patricia P. B. Eichler
Keyword(s):  
Atlantic Ocean ◽  
Satellite Imagery ◽  
Breeding Ground ◽  
Southwest Atlantic ◽  
Eubalaena Australis ◽  
Right Whales ◽  
Southern Right Whales

Spatial population structure of long tail hake from Southwest Atlantic and Southeast Pacific waters in young and adult stages

2021 ◽  
pp. 107419
Author(s):  
Federico Gorini ◽  
Francisco Zumpano ◽  
Natalia Ruocco ◽  
Analía Guissi ◽  
Esteban Avigliano
Keyword(s):  
Population Structure ◽  
Southwest Atlantic ◽  
Long Tail ◽  
Spatial Population ◽  
Spatial Population Structure ◽  
Pacific Waters ◽  
Southeast Pacific

Population structure of the European sardine Sardina pilchardus from Atlantic and Mediterranean waters based on otolith shape analysis

2021 ◽  
Vol 243 ◽  
pp. 106050
Author(s):  
João Neves ◽  
Alexandra Almeida Silva ◽  
Ana Moreno ◽  
Ana Veríssimo ◽  
António Múrias Santos ◽  
...  
Keyword(s):  
Population Structure ◽  
Shape Analysis ◽  
Sardina Pilchardus ◽  
Otolith Shape ◽  
Otolith Shape Analysis

Population structure and ontogenetic habitat use of Micropogonias furnieri in the Southwestern Atlantic Ocean inferred by otolith chemistry

2021 ◽  
Vol 240 ◽  
pp. 105953
Author(s):  
Esteban Avigliano ◽  
Nadia M. Alves ◽  
M. Rita Rico ◽  
Claudio O. Ruarte ◽  
Luciana D’Atri ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Otolith Chemistry ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Micropogonias Furnieri
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