Biological Sampling Survey Stations Ireland 2004-2009

Biological Sampling Survey station locations containing catch data from a bottom trawl survey series: Trawl positions, duration and gear parameters; catch weights of the target species; length frequency distributions; age, sex and maturity. The target species are: cod, haddock, whiting, saithe, hake, black and white-bellied anglerfish, megrim, plaice, sole, herring, blue whiting, mackerel, horse mackerel, blonde ray, cuckoo ray, spotted ray and thornback ray. Data coverage has been for the waters around Ireland from 10m to 180m in depth (Irish Sea, Celtic Sea, West and North of Ireland). The spatial coverage varied from year-to year. The sampling locations were selected from known fishing tracks while trying to ensure maximum spatial spread over the survey area. The surveys took place in February-March of 2004-2009. Samples were collected using a GOV bottom trawl (a scaled-down version of the IBTS standard, see: Manual for the International Bottom Trawl Surveys, ICES Survey Protocols SISP 1-IBTS VIII). The main purpose of the survey was to collect information on the length and age at which target species first reach maturity in the waters around Ireland. The surveys were carried out by the Marine Institute Fisheries Science team. All data collected on the survey are available.

生物采样调查站位置包含来自底拖网调查系列的数据：拖网位置、持续时间和装备参数；目标物种的捕获重量；长度频率分布；年龄、性别和成熟度。目标物种包括：鳕鱼、鲈鱼、鲭鱼、鲭鳕、鲽鱼、黑白腹角鱼、鲷鱼、鲽鱼、鳎鱼、鲱鱼、蓝鲭鱼、鲅鱼、马鲅鱼、黄鳐、乌鳐、斑鳐和棘鳐。数据覆盖范围包括爱尔兰周边水域，深度从10米至180米（爱尔兰海、凯尔特海、爱尔兰西部和北部），空间覆盖范围逐年变化。采样位置从已知的渔道中选取，旨在确保在调查区域内最大限度地实现空间分布。调查于2004年至2009年的二月至三月进行。样本使用GOV底拖网（IBTS标准缩小版，参见：《国际底拖网调查手册》，ICES调查协议SISP 1-IBTS VIII）收集。调查的主要目的是收集关于目标物种在爱尔兰周边水域首次达到成熟时的长度和年龄信息。调查由海洋研究所渔业科学团队执行。所有调查收集的数据均可供查阅。