Marine Biology News

Courtesy of Science Daily

Welcome to Sea and Sky's Marine Biology News. Here you can find links to the latest ocean news headlines in the topic of marine biology. 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.

 

New lobster-like predator found in 508 million-year-old fossil-rich site
What do butterflies, spiders and lobsters have in common? They are all surviving relatives of a newly identified species called Yawunik kootenayi, a marine creature with two pairs of eyes and prominent grasping appendages that lived as much as 508 million years ago -- more than 250 million years before the first dinosaur.
Publ.Date : Fri, 27 Mar 2015 12:05:52 EDT

Spring plankton bloom hitches ride to sea's depths on ocean eddies
Just as crocus and daffodil blossoms signal the start of a warmer season on land, a similar 'greening' event --a massive bloom of microscopic plants, or phytoplankton -- unfolds each spring in the North Atlantic Ocean from Bermuda to the Arctic.
Publ.Date : Fri, 27 Mar 2015 10:11:55 EDT

Tagged mako shark traveled more than 7,300 in less than a year
Like his human counterparts, it seems a shortfin mako shark tagged in Maryland has decided to visit the tropical waters off Puerto Rico.
Publ.Date : Thu, 26 Mar 2015 16:26:04 EDT

Pacific-wide study reveals striped marlins' preferred habitat, may help avoid overfishing
Using the largest tagging data set to date, biologists have shown that across the Pacific Ocean the vertical habitat of striped marlin is defined by the light-penetrated, uppermost part of the ocean known as the epipelagic layer, within eight degrees Celsius of sea surface temperature.
Publ.Date : Thu, 26 Mar 2015 15:23:29 EDT

Twice the coral trout in Great Barrier Reef protected zones
Coral trout in protected 'green zones' are not only bigger and more abundant than those in fished 'blue zones' of the Great Barrier Reef Marine Park, but they are also better able to cope with cyclone damage, according to a long-term study.
Publ.Date : Thu, 26 Mar 2015 13:08:39 EDT

Sea slug provides new way of analyzing brain data
Scientists say our brains may not be as complicated as we once thought -- and they're using sea slugs to prove it. “This research introduces new methods for pulling apart neural circuits to expose their inner building blocks. Our methods could be used to help understand how brain networks change in disease states and how drugs act to restore normal brain function,” authors say.
Publ.Date : Thu, 26 Mar 2015 13:07:17 EDT

Coorong fish hedge their bets for survival
Analysis of the ear bones of the River Murray estuarine fish black bream has revealed how these fish 'hedge their bets' for population survival. Fish ear bones provide much information through analysis of the trace elements they contain and the width of their growth rings.
Publ.Date : Thu, 26 Mar 2015 11:09:00 EDT

Pioneering techniques in computer vision and robotics pave the way for future underwater surveying in Cardigan Bay
Scientists have been working with marine conservation groups to develop better techniques for studying the seabed which is vital for marine conservation and fisheries management.
Publ.Date : Thu, 26 Mar 2015 08:32:58 EDT

A mile deep, ocean fish facing health impacts from human pollution
Deep-water marine fish living on the continental slopes at depths from 2,000 feet to one mile have liver pathologies, tumors and other health problems that may be linked to human-caused pollution, one of the first studies of its type has found. Fish have been found with a blend of male and female sex organs including. The findings appear to reflect general ocean conditions.
Publ.Date : Wed, 25 Mar 2015 15:23:15 EDT

Climate refuges found where corals survive, grow
As rising ocean temperatures continue to fuel the disappearance of reef-building corals, a new study finds there may be some climate refuges where corals will survive in the future.
Publ.Date : Wed, 25 Mar 2015 15:23:09 EDT

Shell-shocked: Ocean acidification likely hampers tiny shell builders in Southern Ocean
A ubiquitous type of phytoplankton -- tiny organisms that are the base of the marine food web -- appears to be suffering from the effects of ocean acidification caused by climate change. According to authors of a new study, the single-celled organism under study is a type of "calcifying" plankton called a coccolithophore, which makes energy from sunlight and builds microscopic calcium carbonate shells, or plates, to produce a chalky suit of armor.
Publ.Date : Wed, 25 Mar 2015 13:51:51 EDT

Algae from clogged waterways could serve as biofuels and fertilizer
Water-borne algal blooms from farm fertilizer runoff can destroy aquatic life and clog rivers and lakes, but scientists will report today that they are working on a way to clean up these environmental scourges and turn them into useful products. The algae could serve as a feedstock for biofuels, and the feedstock leftovers could be recycled back into farm soil nutrients.
Publ.Date : Wed, 25 Mar 2015 08:15:44 EDT

Ascension of marine diatoms linked to vast increase in continental weathering
A team of researcher has used mathematical modeling to show that continental erosion over the last 40 million years has contributed to the success of diatoms, a group of tiny marine algae that plays a key role in the global carbon cycle.
Publ.Date : Mon, 23 Mar 2015 16:23:50 EDT

Archaea: Surviving in hostile territory
Many strange creatures live in the deep sea, but few are odder than archaea, primitive single-celled bacteria-like microorganisms. Archaea go to great lengths -- eating methane or breathing sulfur or metal instead of oxygen -- to thrive in the most extreme environments on the planet. Now scientists have discovered something odder still: a remarkable new virus that seemingly infects methane-eating archaea living beneath the ocean's floor.
Publ.Date : Mon, 23 Mar 2015 14:28:43 EDT

Squid enrich their DNA 'blueprint' through prolific RNA editing
RNA editing of genomic information was thought to be sparingly used, based on a limited number of studies in mammals and flies. But recently, investigators discovered the most prolific usage yet of RNA editing in the common squid, Doryteuthis pealeii, a behaviorally sophisticated marine organism that has long been prized for studies of the nervous system.
Publ.Date : Fri, 20 Mar 2015 15:56:48 EDT

World's most iconic ecosystems: World heritage sites risk collapse without stronger local management
Without better local management, the world's most iconic ecosystems are at risk of collapse under climate change, say researchers. Protecting places of global environmental importance such as the Great Barrier Reef and the Amazon rainforest from climate change will require reducing the other pressures they face, for example overfishing, fertilizer pollution or land clearing.
Publ.Date : Thu, 19 Mar 2015 14:33:25 EDT

Color-morphing reef fish is a ‘wolf in sheep’s clothing’
A new study has shown that the dottyback, a small predatory reef fish, can change the color of its body to imitate a variety of other reef fish species, allowing the dottyback to sneak up undetected and eat their young.
Publ.Date : Thu, 19 Mar 2015 12:38:21 EDT

Three million egg-laying hens killed each year: Redundant egg layers can become food
Three million egg-laying hens are destroyed each year. Researchers believe that this practice is inadequately sustainable and want to see the hens exploited for food, oils and proteins.
Publ.Date : Thu, 19 Mar 2015 11:28:04 EDT

Male fish dig pits and build sand castles at the bottom of Lake Malawi to attract females
A new study shows that courtship rituals evolve exceptionally fast among cichlid fish in Lake Malawi. Only in shallow waters where the light is good, males attract females by building sand castles.
Publ.Date : Wed, 18 Mar 2015 13:03:28 EDT

Evolution of the back-to-belly axis
Early in our embryogenesis, the two main body axes are established to provide positional cues through a coordinate system for the differentiating cells. A research team has now found evidence for an ancient origin of the back-to-belly axis in a sea anemone. The signaling system that is responsible for the establishment of this axis was already present at least 600 million years ago.
Publ.Date : Wed, 18 Mar 2015 10:12:33 EDT