FFS Walther Herwig III 394

Cruise summary report

Cruise Info. 
Ship name (ship code)FFS Walther Herwig III (06NI)
Cruise identifier394
Cruise period2016-03-24 — 2016-04-16
Port of departureBremerhaven, Germany
Port of returnBremerhaven, Germany
ObjectivesThe cruise is part of the international mackerel and horse mackerel egg survey. The main objective of the survey is to produce both an index and a direct estimate of the biomass of the north east Atlantic mackerel stock and an egg production index for the southern and western horse mackerel stocks by sampling of mackerel and horse mackerel eggs and parental animals. The survey provides fisheries independent data which are used for the assessment of the above mentioned stocks. Countries participating are: UK (Scotland), Ireland, the Netherlands, Germany, Spain, Portugal, Iceland, Faroe Islands.

In general the concentration of the spawned eggs is correlated with the number of parental fish having produced the eggs. For planktonic fishing a modified Gulf Sampler will be used (Nackthai). The parental animals are sampled by trawl gear for fecundity estimates.
Chief scientistJens Ulleweit (Thünen Institute of Sea Fisheries, Hamburg)
ProjectInternational Mackerel and Horse Mackerel Egg Survey
Coordinating bodyInternational Council for the Exploration of the Sea (ICES)
Cruise reportFFS Walther Herwig III 394 cruise report waltherherwigiii_394.pdf (2.30 MB) 
NPRCFFS Walther Herwig III 394 NPRC waltherherwigiii_394.pdf (2.35 MB) 
Ocean/sea areas 
GeneralCeltic Sea
North East Atlantic Ocean (limit 40W)
SpecificSouth and west of Ireland