Oceanography News

Courtesy of Science Daily

Welcome to Sea and Sky's Oceanography News. Here you can find links to the latest ocean news headlines in the topic of oceanography. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Temporary 'bathtub drains' in the ocean concentrate flotsam
An experiment using hundreds of plastic drifters in the Gulf of Mexico shows that rather than simply spread out, as current calculations would predict, many of them clumped together in a tight cluster.
Publ.Date : Thu, 18 Jan 2018 17:53:18 EST

Global analysis reveals how sharks travel the oceans to find food
You’ve heard of “you are what you eat” - this research shows that for sharks, the more relevant phrase is “you are where you ate.”
Publ.Date : Thu, 18 Jan 2018 14:29:03 EST

Recent advances in understanding coral resilience are essential to safeguard coral reefs
The most urgent course of action to safeguard coral reefs is to reduce global greenhouse gas emissions, but concurrently there is also a need to consider novel management techniques and previously over-looked reef areas for protective actions under predicted climate change impacts. The conclusions were reached following a comprehensive review of the literature on the mechanisms of potential coral resistance and recovery across scales from global reef areas to the microbial level within individual corals.
Publ.Date : Thu, 18 Jan 2018 14:19:09 EST

Release of ancient methane due to changing climate kept in check by ocean waters
Ocean sediments are a massive storehouse for the potent greenhouse gas methane. But methane only acts as a greenhouse gas if and when it reaches the atmosphere. Environmental scientists recently set out to discover whether or not this ancient-sourced methane, which is released due to warming ocean waters, survives the journey from the seafloor and reaches the atmosphere.
Publ.Date : Wed, 17 Jan 2018 16:40:22 EST

Coping with climate stress in Antarctica
Some Antarctic fish living in the planet's coldest waters are able to cope with the stress of rising carbon dioxide levels the ocean. They can even tolerate slightly warmer waters. But they can't deal with both climate change stressors at the same time, according to a new study.
Publ.Date : Wed, 17 Jan 2018 12:16:40 EST

California sea lion population rebounded to new highs
California sea lions have fully rebounded under the protection of the Marine Mammal Protection Act, with their population on the West Coast reaching carrying capacity in 2008 before unusually warm ocean conditions reduced their numbers, according to the first comprehensive population assessment of the species.
Publ.Date : Wed, 17 Jan 2018 11:50:03 EST

Weather anomalies accelerate the melting of sea ice
Researchers reveal why Arctic sea ice began to melt in the middle of winter two years ago -- and that the increased melting of ice in summer is linked to recurring periods of fair weather.
Publ.Date : Tue, 16 Jan 2018 22:25:26 EST

Drones confirm importance of Costa Rican waters for sea turtles
A new drone-enabled population survey -- the first ever on sea turtles -- shows that larger-than-anticipated numbers of turtles aggregate in waters off Costa Rica's Ostional National Wildlife Refuge. Scientists estimate turtle densities may reach up to 2,086 animals per square kilometer. The study underscores the importance of the Ostional habitat; it also confirms that drones are a reliable tool for surveying sea turtle abundance.
Publ.Date : Tue, 16 Jan 2018 15:12:59 EST

Robots aid better understanding of phytoplankton blooms
Phytoplankton blooms are one of the most important factors contributing to the efficiency of the carbon pump in the North Atlantic Ocean. To better understand this phenomenon, researchers have developed a new class of robots able to collect data in the ocean throughout the year. Using these unparalleled data, the researchers have identified the starting point for the explosive spring phytoplankton bloom.
Publ.Date : Mon, 15 Jan 2018 09:42:31 EST

New application for acoustics helps estimate marine life populations
Researchers have for the first time have used hydroacoustics as a method for comparing the abundance of fishes within and outside marine protected areas (MPAs).
Publ.Date : Mon, 15 Jan 2018 09:42:25 EST

Sanchi oil spill contamination could take three months to reach mainland
Water contaminated by the oil currently leaking into the ocean from the Sanchi tanker collision is likely to take at least three months to reach land, and if it does the Korean coast is the most likely location. However, the oil's fate is highly uncertain, as it may burn, evaporate, or mix into the surface ocean and contaminate the environment for an extended duration.
Publ.Date : Sat, 13 Jan 2018 09:37:33 EST

Tagged tiger shark proving unstoppable
For more than a decade, researchers have been tagging and tracking sharks in order to study their migratory patterns and more. One tiger shark - Andy - is now the longest-ever tracked tiger shark, providing years worth of data for researchers.
Publ.Date : Thu, 11 Jan 2018 16:30:13 EST

Rising CO2 is causing trouble in freshwaters too, study suggests
As carbon dioxide (CO2) levels in the atmosphere rise, more CO2 gets absorbed into seawater. As a result, the world's oceans have grown more acidic over time, causing a wide range of well-documented problems for marine animals and ecosystems. Now, researchers present some of the first evidence that similar things are happening in freshwaters too.
Publ.Date : Thu, 11 Jan 2018 14:17:36 EST

Machine learning predicts new details of geothermal heat flux beneath the Greenland Ice Sheet
A new article uses machine learning for the first time to craft an improved model for understanding geothermal heat flux -- heat emanating from the Earth's interior -- below the Greenland Ice Sheet.
Publ.Date : Thu, 11 Jan 2018 11:53:24 EST

A close-up look at an uncommon underwater eruption
A new article describes the first up-close investigation of the largest underwater volcanic eruption of the past century.
Publ.Date : Wed, 10 Jan 2018 14:13:20 EST

Body size of marine plankton, currents keys to dispersal in ocean
A new international study found that the size of plankton, and the strength and direction of currents, are key to how they are dispersed in the ocean -- much more so than physical conditions including differences in temperature, salinity and nutrient availability.
Publ.Date : Wed, 10 Jan 2018 13:23:23 EST

Strong support for ocean protection: Study
People around the world strongly support ocean conservation measures, according to a new study of public perceptions of marine threats and protection.
Publ.Date : Wed, 10 Jan 2018 10:10:08 EST

Earthquakes as a driver for the deep-ocean carbon cycle
Geologists have used novel methods to analyze sediment deposits in the Japan Trench in order to gain new insights into the carbon cycle.
Publ.Date : Wed, 10 Jan 2018 10:09:58 EST

New depth limit for deep-sea marine burrows
Scientists have found fossil evidence of deep-sea marine life burrowing up to eight meters below the seabed -- four times the previously observed depth for modern deep-sea life.
Publ.Date : Wed, 10 Jan 2018 08:05:49 EST

Climate change drives collapse in marine food webs
A new study has found that levels of commercial fish stocks could be harmed as rising sea temperatures affect their source of food.
Publ.Date : Tue, 09 Jan 2018 15:09:21 EST