說明
Data collected on various vessel operations on the Great Lakes and select connecting waterways. This vessel operations data set is part of and connected to a larger database of Great Lakes research that includes trawl and gillnet catch data, sample information, as well as effort, operation conditions, and location details. Multiple operations were conducted on all Great Lakes each year (1958-2016) beginning in early spring and ending in late fall. Each vessel operation was completed for a specific purpose, or target mission, which are enumerated in this data set. RVCAT stores data from the research vessels associated with the United States Geological Survey, Great Lakes Science Center and it's partners. The Trawl Tables contain data collected from the research vessel deploying various trawl gear.
資料紀錄
此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 44,867 筆紀錄。
亦存在 2 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 United States Geological Survey。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 91641b5c-7afa-4262-9fe0-d22d067ce299。 United States Geological Survey 發佈此資源，並經由GBIF-US同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent
聯絡資訊
地理涵蓋範圍
U.S. Great Lakes and select connecting waterways.
| 界定座標範圍 | 緯度南界 經度西界 [40.833, -92.675], 緯度北界 經度東界 [49.216, -75.483] |
|---|
額外的詮釋資料
marine, harvest by iOBIS
| 替代的識別碼 | 91641b5c-7afa-4262-9fe0-d22d067ce299 |
|---|---|
| https://www1.usgs.gov/obis-usa/ipt/resource?r=usgs_glsc_rvcat_trawl |