Alternate title

2020 Seabird - Celtic Sea Acoustic Herring Survey

Date (Publication)

2022-06-01

Citation identifier

https://data.gov.ie/dataset/ / Seabird Monitoring undertaken during the Celtic Sea Herring Acoustic Survey (CSHAS) 2020

Purpose

To conduct surveillance of seabirds occurring within their waters as required under the EU Birds Directive. Seabird and terrestrial bird sightings, species, counts and a number of other parameters were recorded during the Celtic Sea Herring Acoustic Survey 2020.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Department of Housing, Local Government and Heritage	National Parks and Wildlife Service	datadelivery@housing.gov.ie	Point of contact

Maintenance and update frequency

As needed

GEMET - INSPIRE themes, version 1.0

• Species distribution

GEMET - Concepts, version 4.2.3

• biota, biodiversity, animal population, bird

National Parks and Wildlife Service

• National Parks and Wildlife Service, NPWS, bird, Birds Directive, biodiversity

ISO 3166

• Ireland

Use limitation

https://creativecommons.org/licenses/by/4.0/

Use limitation

https://creativecommons.org/licenses/by/4.0/

Access constraints

Other restrictions

Other constraints

Copyright Government of Ireland. This dataset was created by National Parks and Wildlife Service, Department of Housing, Local Government and Heritage. This copyright material is licensed for re-use under the Creative Commons Attribution 4.0 International licence. http://creativecommons.org/licenses/by/4.0/

Spatial representation type

Vector

Denominator

50000

Language

English

Character set

UTF8

Topic category

• Environment

Begin date

2021-10-08

End date

2023-10-28

Reference system identifier

http://www.opengis.net/def/crs/EPSG/0/4326 / 4326

EPSG Geodetic Parameter Dataset EPSG 2009-11-25

Distribution format

Name	Version
Esri shapefile	v10+

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Department of Housing, Local Government and Heritage	National Parks and Wildlife Service	datadelivery@housing.gov.ie.ie	Point of contact

OnLine resource

Protocol	Linkage	Name
zip	https://www.npws.ie/sites/default/files/general/CSHS20.zip

Hierarchy level

Dataset

Statement

Visual survey watches were conducted using a standard line transect survey design while the vessel was travelling at a consistent speed and heading. Additional visual point sampling (e.g., at oceanographic sampling stations or fishing stations) was also employed, however line transect survey effort was prioritised by the observer. The observer’s survey effort was maximized and optimized during periods of sea state less than or equal to sea state 6 and with visibility of greater than 300m. Regular breaks were taken by the observer to avoid observer fatigue and its associated negative consequences.

Observations for seabirds were conducted from the monkey island (deck height 12 m above sea level).The Cybertracker ( https://cybertracker.org) data collection software package (Version 3.514) was configured for optimum use on the survey. Cybertracker was used to record all positional, environmental and sightings data. Using a portable GPS receiver with USB connection, the Cybertracker software automatically recorded the ships position directly into a Microsoft Access database every 5 seconds.

Environmental data was regularly recorded using Cybertracker, including at the start of each seabird survey transect, and included data such as; wind speed, wind direction, sea state, swell, visibility, cloud cover and precipitation. The data was time stamped with GPS data by Cybertracker and saved in the Access database. If environmental conditions changed at any point, the seabird observer recorded an environmental update of the above listed data. Each line transect was assigned a unique transect

number, and a new transect was started anytime the vessel activity changed (i.e. changing from on-transect to inter-transect). Each subsequent sighting was also assigned to this unique transect number. Ancillary information (such as line changes, changes in survey activity, other vessel activity, etc.) were also recorded on Cybertracker.

The GPS position of each seabird sighting was time stamped and digitally marked using Cybertracker. Sighting data such as; species identification, distance band, group size, composition, heading, age, moult, behaviour and any associations with cetaceans or other vessels were also recorded on the time stamped Cybertracker sighting record page. Where species identification could not be confirmed, sightings were recorded at an appropriate taxonomic level (i.e. large gull sp., Larus sp., commic tern, etc.).

Additional visual point sampling was conducted at oceanographic sampling stations and fishing shoot/haul locations. Point sampling survey effort for seabirds was conducted in 360 o arc around the vessel. Data recording methodology remained similar for both point sampling and line transect methods.

Metadata

File identifier

e033d4bb-9e29-4eae-8cbd-6f21d8acdd65 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2023-11-16T17:05:44

Metadata standard name

ISDI Metadata Profile

Metadata standard version

1.2

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Department of Housing, Local Government and Heritage	National Parks and Wildlife Service	datadelivery@housing.gov.ie	Author