Atlantic and horse mackerel egg survey from NE Atlantic May 2016
This dataset contains measurements of temperature, salinity, raised/non-raised mackerel egg numbers, raised/non-raised horse mackerel egg numbers as well as adult fish total length, weight, maturity and sex. Data were obtained on the RV Bjarni Sæmundsson which sampled North of Scotland to Iceland. The project altogether obtained data along the Portuguese coast from February and continued until July to the waters west of Scotland. The egg survey was carried out from the 02/05/2016 to 13/05/2016 with the adult mackerel sampling taking place on 11/05/2016. A total of 4 pelagic trawl hauls were carried out to collect adult mackerel samples using a pelagic WB trawl. Sampling of the fish eggs was carried out with a High Speed Plankton Sampler Gulf VII, which had a 280 micron mesh sized net and an opening diameter of 20cm. A small skrips-depressor of 30 kg was also attached to the sampler. Water filtered during each haul was measured using an internal Valeport electronic flowmeter. An external flowmeter was in turn mounted on the frame, as well as a Seabird 911 plus CTD attached with an altimeter, which measured depth, temperature and salinity. Samples were sorted for fish eggs using the spray method and mackerel eggs were staged according to the sampling protocol. For quality assurance, 10% of the samples were checked and sorted again. All eggs were counted and identified to species level. The data were obtained as a part of an international Atlantic survey, carried out by 10 different European institutes to monitor the spatial and seasonal distribution of Atlantic mackerel and horse mackerel. Planning and coordination of the survey was made within the ICES Working Group for Mackerel and Horse Mackerel Egg Surveys (WGMEGS). In 2016 the following countries participated in this survey: The Faroes, Denmark, Germany, Ireland, Norway, Portugal, Scotland, Spain, the Netherlands and Iceland. The data present here has been obtained by Marine Research Institute in Iceland.
INSPIRE
Identification
- File identifier
- d64c94b18a4058afa710570310d148d2 XML
- Hierarchy level
- dataset Dataset
Online resource
Resource identifier
- Metadata language
- EnglishEnglish
Encoding
Projection
- code
- urn:ogc:def:crs:EPSG::4326
Classification of data and services
- Topic category
-
- Biota
- Oceans
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
- INSPIRE themes
- MEDIN metadata record availability
- Vertical Coverages
- SeaDataNet PDV
Geographic coverage
N
S
E
W
Temporal reference
Temporal extent
- Begin
- 2016-05-02
- End
- 2016-05-14
Temporal extent
- Date (Publication)
- 2017-10-03
- Date (Creation)
- 2016-08-18
- Date (Revision)
- 2019-09-03
Quality and validity
- Lineage
- unknown
Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
Restrictions on access and use
- Access constraints
- The access conditions to the data are not known
Responsible organization (s)
Contact for the resource
- Organisation name
- Marine Research Institute
- hafro@hafro.is
- Organisation name
- British Oceanographic Data Centre
- enquiries@bodc.ac.uk
Responsible organization (s)
Contact for the resource
- Organisation name
- Marine Research Institute
- hafro@hafro.is
- Organisation name
- British Oceanographic Data Centre
- enquiries@bodc.ac.uk
Metadata information
Contact for the metadata
- Organisation name
- Marine Research Institute
- hafro@hafro.is
- Date stamp
- 2019-09-17T06:31:46
- Metadata language
- EnglishEnglish
SDS
Conformance class 1: invocable
Access Point URL
Endpoint URL
Technical specification
Conformance class 2: interoperable
Access constraints
Limitation
Use constraints
Limitation
Responsible custodian
Contact for the resource
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available