Maritimes 4VSW Research Vessel Surveys

“4VSW” missions focus on the eastern half of the Scotian Shelf, and occur primarily in March, but sets in both February, and April are also present in the data. These missions use a unique stratification scheme intended to optimize the abundance estimates of cod. Collected data includes total catch in numbers and weights by species. Length frequency data is available for most species, as are the age, sex, maturity and weight information for a subset of the individual animals. Other data such as ageing material, genetic material, and stomach contents are often also collected, but are stored elsewhere.

4VSW任务专注于斯科特浅滩的东部区域，主要在三月进行，但数据中亦包含了二月和四月的相关任务。这些任务采用独特的分层方案，旨在优化鳕鱼的丰度估计。收集的数据包括按物种分类的总捕获数量和重量。大多数物种提供了长度频率数据，对于部分个体动物，还提供了年龄、性别、成熟度和体重信息。此外，通常还会收集如年龄鉴定材料、遗传材料和胃内容物等数据，但这些数据通常存放在其他地方。