LA MBON Louisiana Oyster Reef-Associated Benthic Biodiversity - Biodiversity Information

データ レコード

この sampling event リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、40 レコードが含まれています。

拡張データ テーブルは2 件存在しています。拡張レコードは、コアのレコードについての追加情報を提供するものです。 各拡張データ テーブル内のレコード数を以下に示します。

この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。

バージョン

次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。

権利

研究者は権利に関する下記ステートメントを尊重する必要があります。:

パブリッシャーとライセンス保持者権利者は NOAA Integrated Ocean Observing System。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF登録

このリソースをはGBIF と登録されており GBIF UUID: a802e813-af22-4047-a7cd-0b9ec9961ce4が割り当てられています。   GBIF-US によって承認されたデータ パブリッシャーとして GBIF に登録されているNOAA Integrated Ocean Observing System が、このリソースをパブリッシュしました。

キーワード

occurrence; oyster; louisiana; oyster reef; benthic; reef-associated; habitat trays; estuarine; observation; oyster; louisiana; oyster reef; benthic; reef-associated; habitat trays; estuarine

連絡先

地理的範囲

Gulf of America

時間的範囲

プロジェクトデータ

This project will establish a new MBON effort in coastal Louisiana, focusing on highly productive and diverse estuarine ecosystems as sea level rise sentinels

プロジェクトに携わる要員:

収集方法

At each oyster reef sediment organic matter and reef material are quantified within 6 haphazardly placed 0.25 x 0.25 m quadrats. Within each quadrat, sediment for organic matter quantification is collected by pushing a 50ml core into the sediment. The core contents are then emptied into a pre-labeled whirl-pak. In the lab, organic matter is quantified using the Loss-on-Ignition method. Next, all reef material within the quadrat up to 10cm depth is collected and rinsed of excess mud. Reef material (live and dead shell material) volume is quantified using the volume displacement method and live oysters and mussels are counted. The first ten live oysters are measured for shell height from umbo to tip. Barnacles are recorded on a relative abundance scale: 0 – no live barnacles; 1 – 1-10 live barnacles; 2 – 11-50 live barnacles; 3 – > 50 live barnacles. The contents of the reef material sampling are added to pre-filled benthic habitat trays so that the contents of one quadrat go into one tray. The benthic habitat trays (n=6, 0.48 × 0.48 x 0.10 m; 20 L) are lined with 3-mm chicken wire and 1-mm mesh bags and pre-filled with ~3L of disarticulated oyster shell. Once all six trays are topped with reef material they are placed in a row on the oyster reef running parallel to shore. A hydrophone (ST 300HF or ST 600HF) set to record continuously a with a 48 kHz sampling rate and high pre-amp gain is attached to a sandbag and deployed in the center of the row of trays. All sampling gear is left for two weeks to allow the community to develop. After two weeks the habitat trays are collected by cinching closed the mesh bag prior to pulling the tray off of the bottom. Once all trays are collected the mesh bags are tied shut and removed from the trays. Excess mud is rinsed from the bags and all material is rinsed through a 1mm mesh sieve. Larger shells are removed and all material retained on the mesh is frozen for future analysis. When ready for processing samples are thawed and rinsed through a 1mm sieve. Material retained on the sieve is visually inspected under 10x magnification and all organisms identified are retained and sorted into probable unique taxa groups. Taxa groups are reviewed and identified to the lowest practicable taxonomic unit (typically species). Individuals within taxa groups are counted, weighed, then dried for 48 hours at 60℃, or until a stable dry weight is reached. When new taxa to the dataset taxa are encountered a voucher specimen is collected. The specimen collected as a voucher is placed into 90% ethanol after a wet weight is recorded. This voucher specimen is recorded separately. The voucher specimens are deposited into the LUMCON Natural History Collection so that taxonomic identification can be continually refined it necessary. Post-processing of hydrophone recordings is described elsewhere.

Method step description:

1. At each oyster reef sediment organic matter and reef material are quantified within 6 haphazardly placed 0.25 x 0.25 m quadrats. Within each quadrat, sediment for organic matter quantification is collected by pushing a 50ml core into the sediment. The core contents are then emptied into a pre-labeled whirl-pak. In the lab, organic matter is quantified using the Loss-on-Ignition method. Next, all reef material within the quadrat up to 10cm depth is collected and rinsed of excess mud. Reef material (live and dead shell material) volume is quantified using the volume displacement method and live oysters and mussels are counted. The first ten live oysters are measured for shell height from umbo to tip. Barnacles are recorded on a relative abundance scale: 0 – no live barnacles; 1 – 1-10 live barnacles; 2 – 11-50 live barnacles; 3 – > 50 live barnacles. The contents of the reef material sampling are added to pre-filled benthic habitat trays so that the contents of one quadrat go into one tray. The benthic habitat trays (n=6, 0.48 × 0.48 x 0.10 m; 20 L) are lined with 3-mm chicken wire and 1-mm mesh bags and pre-filled with ~3L of disarticulated oyster shell. Once all six trays are topped with reef material they are placed in a row on the oyster reef running parallel to shore. A hydrophone (ST 300HF or ST 600HF) set to record continuously a with a 48 kHz sampling rate and high pre-amp gain is attached to a sandbag and deployed in the center of the row of trays. All sampling gear is left for two weeks to allow the community to develop. After two weeks the habitat trays are collected by cinching closed the mesh bag prior to pulling the tray off of the bottom. Once all trays are collected the mesh bags are tied shut and removed from the trays. Excess mud is rinsed from the bags and all material is rinsed through a 1mm mesh sieve. Larger shells are removed and all material retained on the mesh is frozen for future analysis. When ready for processing samples are thawed and rinsed through a 1mm sieve. Material retained on the sieve is visually inspected under 10x magnification and all organisms identified are retained and sorted into probable unique taxa groups. Taxa groups are reviewed and identified to the lowest practicable taxonomic unit (typically species). Individuals within taxa groups are counted, weighed, then dried for 48 hours at 60℃, or until a stable dry weight is reached. When new taxa to the dataset taxa are encountered a voucher specimen is collected. The specimen collected as a voucher is placed into 90% ethanol after a wet weight is recorded. This voucher specimen is recorded separately. The voucher specimens are deposited into the LUMCON Natural History Collection so that taxonomic identification can be continually refined it necessary. Post-processing of hydrophone recordings is described elsewhere.

追加のメタデータ