Results 11 to 20 of about 609,903 (207)

Preovulatory follicle growth dynamics indicates daily spawning synchronicity in wild-caught Atlantic horse mackerel off Portugal [PDF]

Aquatic Living Resources, 2018
The Atlantic horse mackerel, Trachurus trachurus, is a commercially important species whose daily spawning dynamics are not yet fully understood. Existence of spawning synchronicity would facilitate application of the daily egg production method for ...
Mouchlianitis Foivos Alexandros, Nunes Cristina, Costa Ana Maria, Angélico Maria Manuel, Ganias Konstantinos   +4 more
doaj   +3 more sources

Atlantic mackerel and horse mackerel egg survey 2013: Dutch participation [PDF]

, 2014
In 2013 the international Atlantic mackerel and horse mackerel egg survey was performed. This year the entire spawning area was sampled by 10 institutes from 9 different countries: Faeröer Islands, Germany, Iceland, Ireland, Norway, Portugal, Scotland, Spain and The Netherlands.
van Damme, C.J.G., Damme, C.J.G., van
openaire   +2 more sources

Atlantic mackerel and Horse mackerel egg survey 2016: Dutch participation on board FV Atlantic Lady: May [PDF]

, 2016
From 10 till 25 May 2016 IMARES carried out a mackerel and horse mackerel egg survey on board the FV Atlantic Lady. This survey was part of the international mackerel and horse mackerel egg survey coordinated by ICES. The Redersvereniging voor de Zeevisserij (RVZ) asked IMARES to carry out this survey.
van Damme, C.J.G., Damme, C.J.G., van
openaire   +2 more sources

Length measurement methods of Atlantic mackerel (Scomber scombrus) and Atlantic horse mackerel (Trachurus trachurus) – current practice, conversion keys and recommendations

Fisheries Research, 2018
Abstract International monitoring of Atlantic mackerel (Scomber scombrus) and Atlantic horse mackerel (Trachurus trachurus), two commercial and ecologically epipelagic fish species in the North Atlantic, is currently done inconsistently. Depending on the country and institute, the length of a specimen is measured as either ‘Fork Length’, ‘Pinched ...
Flemming Thorbjørn Hansen, Finlay Burns, Søren Post, Uffe Høgsbro Thygesen, Teunis Jansen   +4 more
openaire   +2 more sources

Atlantic mackerel and horse mackerel egg survey: Dutch participation May and June 2010 [PDF]

, 2010
Every three years an international Atlantic survey is carried out by different European institutes to monitor the spatial and seasonal distribution of Atlantic mackerel and horse mackerel. During this survey mackerel and horse mackerel eggs are sampled using a plankton torpedo or bongo nets. The survey covers the whole spawning area and season.
van Damme, C.J.G., Bakker, C.
openaire   +2 more sources

Morphometrical characters of Atlantic horse mackerel Trachurus trachurus (Linnaeus, 1758), in the North Atlantic zone of Morocco [PDF]

E3S Web of Conferences
The Atlantic Horse mackerel Trachurus trachurus (Linnaeus, 1758) is subject to considerable fishing pressure. under strong fishing pressure, the objective of the research is to establish the species morphological characterization: the growth model, sex ...
Badri Maroua, Ezziyyani Mohammed, Benchoucha Said   +2 more
doaj   +2 more sources

An Optimal Control Framework for Multi‐Species Harvesting in the Southern Black Sea

Natural Resource Modeling
The management of marine fisheries requires balancing ecological sustainability with economic profitability, particularly in ecosystems vulnerable to overexploitation.
Maruf A. Lawal, Mahir Demir, Michael R. Kelly, Suzanne Lenhart   +3 more
doaj   +2 more sources

Estimating natural interstage egg mortality of Atlantic mackerel (Scomber scombrus) and horse mackerel (Trachurus trachurus) in the Northeast Atlantic using a stochastic model

Canadian Journal of Fisheries and Aquatic Sciences, 2007
Egg mortality is a key parameter for understanding early life histories of fish. Small variations in estimated mortality cause large differences on adult fish biomass estimates. Therefore, the assumption of a constant egg mortality rate may be misleading. Here, we show how to estimate mortality rates for the individual egg stages of Atlantic mackerel (
Portilla, E., McKenzie, E., Beare, D., Reid, D.G.   +3 more
openaire   +4 more sources

Changes on horse mackerel (Trachurus trachurus) catch distribution in the Northeast Atlantic [PDF]

, 1996
The distributions of international commercial catch data were mapped by ICES rectangle and quarter from 1983-1994. These indicate a northward expansion of horse mackerel distribution in the Northeast Atlantic since 1987. The spatial variability of the yearclass abundance of horse mackerel over the European shelf and shelf edge is investigated using ...
Borges, Maria Fatima, Silva, Alexandra, Abaunza, Pablo, Eltink, A., Lucio, Paulino, Walsh, Martin, Poulard, Jean-Charles, Casey, John, Iversen, Svein A., Skagen, Dankert W., Sanchez, Francisco   +10 more
openaire   +2 more sources

Studying of <i>Trachurus trachurus</i> (Linnaeus, 1758) Population Reproductive Dynamics in the Eastern Moroccan Mediterranean. [PDF]

Ecol Evol
Horse mackerel (Trachurus trachurus) populations along the eastern Moroccan Mediterranean coast were studied over 12 months using 390 specimens to assess reproductive ecology. The species showed two spawning periods—late winter to early spring and summer—and exhibited fractional spawning, with males being more predominant.
Nasri H, Kasmi K, Slimani D, Abdellaoui S, Melhaoui R, Hammouti B, Jodeh S, Chaabane K, Alkowni R.   +8 more
europepmc   +2 more sources