Spatio-temporal variability in the population structure in North-east Atlantic stocks of horse mackerel (Trachurus trachurus)

2015 ◽  
Vol 115B (3) ◽  
pp. 211-220
Author(s):  
Maria Sala Bozano ◽  
Stefano Mariani ◽  
Christopher D. Barratt ◽  
Carlotta Sacchi ◽  
Belgees Boufana ◽  
...  
Keyword(s):  
Population Structure ◽  
Temporal Variability ◽  
Horse Mackerel ◽  
Trachurus Trachurus ◽  
East Atlantic ◽  
North East ◽  
Spatio Temporal

scholarly journals Genetic analysis provides insights into species distribution and population structure in East Atlantic horse mackerel ( Trachurus trachurus and T. capensis )

2020 ◽  
Vol 96 (3) ◽  
pp. 795-805
Author(s):  
Amy J. E. Healey ◽  
Matthew W. Farthing ◽  
Francis K. E. Nunoo ◽  
Warren M. Potts ◽  
Warwick H. H. Sauer ◽  
...  
Keyword(s):  
Population Structure ◽  
Genetic Analysis ◽  
Species Distribution ◽  
Horse Mackerel ◽  
Trachurus Trachurus ◽  
East Atlantic ◽  
Atlantic Horse Mackerel

scholarly journals Spatio-temporal variability of amphipod assemblages associated with rhodolith seabeds

2021 ◽  
Vol 72 (1) ◽  
pp. 76 ◽  
Author(s):  
Sandra Navarro-Mayoral ◽  
Victoria Fernandez-Gonzalez ◽  
Francisco Otero-Ferrer ◽  
Fernando Tuya
Keyword(s):  
Population Structure ◽  
Temporal Variability ◽  
Multivariate Analyses ◽  
Assemblage Structure ◽  
Free Living ◽  
Gran Canaria ◽  
Four Seasons ◽  
Spatio Temporal ◽  
Diversity Structure ◽  
Ecological Pattern

Rhodolith seabeds are habitats underpinned by free-living calcareous macroalgae. We partitioned the relevance of the scale of temporal (four seasons throughout two successive years) and spatial (three depth strata: 18, 25 and 40m) variation on the diversity, structure and abundance of amphipod assemblages living in rhodolith seabeds from Gran Canaria Island. In total, 3996 individuals, belonging to 32 taxa, were identified. Multivariate analyses showed consistent differences in assemblage structure among seasons and depths; more diverse and abundant amphipod assemblages were often observed during spring at 18- and 25-m than at 40-m depth. Ovigerous females of Gammaropsis ostroumowi and Ampithoe ramondi were observed mainly at 18 and 25m. Juveniles of both species were exclusively recorded at 18 and 25m, so denoting a clear segregation in their population structure with depth. In summary, this study has demonstrated that the ecological pattern of amphipods associated with rhodolith seabeds can vary greatly across both time (seasons) and space (depth).

Metazoan parasites of blue jack mackerelTrachurus picturatus(Perciformes: Carangidae) from Portuguese mainland waters

2015 ◽  
Vol 90 (4) ◽  
pp. 410-416 ◽  
Author(s):  
M. Hermida ◽  
A. Pereira ◽  
A.T. Correia ◽  
C. Cruz ◽  
A. Saraiva
Keyword(s):  
Parasite Community ◽  
Horse Mackerel ◽  
Jack Mackerel ◽  
East Atlantic ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
Digenean Species ◽  
North East ◽  
The North ◽  
First Time

AbstractBlue jack mackerel,Trachurus picturatus,is a carangid fish which constitutes an important commercial resource in the north-east Atlantic. Its metazoan parasite community from Portuguese mainland waters was investigated here for the first time. Nine parasite taxa were found, most of which are common parasites ofTrachurusspp. The parasite community was broadly similar to that of the Atlantic horse mackerel,T. trachurus, from the same region, but two digenean species were detected in blue jack mackerel,Monascus filiformisandTergestiasp., which did not occur in horse mackerel from this region. A comparison with the two previous studies ofT. picturatusparasite communities shows that continental-shelf regions are characterized by higher prevalences of digenean trematodes and an absence of trypanorhynch cestodes, in contrast with oceanic regions.

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