Subsurface chlorophyll maximum layers (SCMLs) are nearly ubiquitous in stratified water columns and exist at horizontal scales ranging from the submesoscale to the extent of oligotrophic gyres. These layers of heightened chlorophyll and/or phytoplankton concentrations are generally thought to be a consequence of a balance between light energy from above […]
Yearly Archives: 2018
15 posts
Salmonid feeds can be formulated with high quality microalgae to maintain sustainability in the aquaculture industry. But, the suitability of different microalgae species as potential feed ingredients needs to be documented to enable ready acceptance by the farming industry. The aim of the present study is to investigate the potential […]
The Second State of the Carbon Cycle Report (SOCCR2) was released by the U.S. Global Change Research Program (USGCRP) via https://carbon2018.globalchange.gov on Friday, November 23, 2018. With over 200 contributing experts including PI Johnson, this interagency Highly Influential Scientific Assessment was led by the Carbon Cycle Interagency Working Group (CCIWG) […]
Peggy Mullin, visiting UNC student who is working with the Johnson Lab on modeling outdoor large scale algae growth, successfully defended her undergraduate honor’s thesis. The thesis, “Development of a laboratory metric to predict large scale algae productivity” uses small scale, rapid laboratory measurements in conjunction with environmental data and […]
PhD graduate student Sarah Loftus was the top prize winner of the biology section at the Algae Biomass Summit. The Summit is the algae industry’s premier event, where leading producers of algae products go to network with industry suppliers and technology providers, where project developers converse with utility executives, and […]
There is a growing awareness of the ecological and biogeochemical importance of fungi in coastal marine systems, while highly diverse fungi have been discovered in these marine systems, still little is known about their seasonality and associated drivers in coastal waters. Here, we examined fungal communities over three years of […]
The unicellular Labyrinthulomycete protists have long been considered to play a significant role in ocean carbon cycling. However, their distribution and biogeochemical function remain poorly understood. We present a large‐scale study of their spatiotemporal abundance and diversity in the coastal waters of Bohai Sea using flow cytometry and high‐throughput sequencing. […]
The annual Duke Marine Lab Open House had exceptional attendance this year as it coincided with alumni weekend and a visit from Duke University President Vincent Price. Johnson Lab members hosted two stations at Open House on the sunny July afternoon. One station showcased the open raceway ponds, a feature […]
First year PhD student Laura Givens receive an IBIEM Graduate Trainee award. IBIEM (Integrative Bioinformatics for Investigating and Engineering Microbiomes) is an interdisciplinary graduate training program between Duke University and North Carolina A&T State University which brings together scientists from various fields with an interest in microbiome research. IBIEM trainees […]
The Pivers Island Coastal Observatory (PICO) weekly (and sometimes more) time-series turned eight today. Started in 2010 as an undergraduate independent student project focusing on ocean acidification, the coastal time-series has matured into a long term coastal sentinel, observing seasonal, yearly and interannual changes in the physics, chemistry and biology […]