Featured Research

from universities, journals, and other organizations

Corals surviving ocean's pollution

Date:
December 2, 2013
Source:
Investigación y Desarrollo
Summary:
Unlike other marine species, the corals are still capable of adapting under current circumstances of sea acidification. “The first models indicated that the coral reefs would disappear midcentury, but our study reveals that corals are adapting to the ocean’s acidification that has increased since the industrial revolution”, the head researcher notes.

Pocillopora. This study analyzed colonies of Porites and Pocillopora, which are the more important species in the reefs of the Oriental Pacific Ocean.
Credit: Investigación y Desarrollo

Unlike other marine species, the corals are still capable of adapting under current circumstances of sea acidification, reveled by researchers at the Center of Biological Research of the Northeast (Cibnor). "The first models indicated that the coral reefs would disappear midcentury, but our study reveals that corals are adapting to the ocean's acidification that has increased since the industrial revolution," Eduardo Balart Páez said, head of research.

Related Articles


The project is performed along the Gulf of California and the coast of the Mexican Pacific, where a natural acidification gradient exists. The scientist analyzed colonies of Porites and Pocillopora, which are the more important species in the reefs of the Oriental Pacific Ocean.

Through radiographic plates taken from samples of Porites panamensis of up to 22 years of age, changes in extension, density and calcification were visualized through time in the coralline skeleton. DNA was also extracted from both coralline groups with the objective of knowing their genetic diversity.

This studies helped identified that the ocean's acidification is affecting the coral's growth but not dramatically, moreover the impact is different between males and females. The corals of the Pocillopora genus are hermaphrodites but not Porites, hence the answer is not the same for all.

"This marine organisms are healthy, for the moment, because of a bigger energetic expense given by a genetic adaptation, however as the acidification levels rise there can be a disturbance in the sexual proportions," warned Balart Páez.

The researcher specified that the specie Porites panamensis is a massive coral that is frequently found from the shore to a depth of 30 meters. Meanwhile, the Pocillopora, ramified corals, require a great quantity of light given to their great dependence to the photosynthesis of their symbionts, and that is why they are found in shallow waters.

The current acidification of the oceans is a consequence of the rise of carbon dioxide emissions to the atmosphere, from the main anthropogenic activities (industry and transportation). The average pH of ocean waters was of 8.15 during preindustrial period, and now it has dropped to 8.05; meaning that, the ocean is turning more acid.

Finally, the researcher considered that the threat of acidity over the reefs has not diminished. It will be necessary to do more research in order to find which coral species are the most prone to adapt, how the fragmentation of populations is affecting them and study the phenomenon in the laboratory to elaborate forecasts to possible future scenarios.


Story Source:

The above story is based on materials provided by Investigación y Desarrollo. Note: Materials may be edited for content and length.


Cite This Page:

Investigación y Desarrollo. "Corals surviving ocean's pollution." ScienceDaily. ScienceDaily, 2 December 2013. <www.sciencedaily.com/releases/2013/12/131202082404.htm>.
Investigación y Desarrollo. (2013, December 2). Corals surviving ocean's pollution. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2013/12/131202082404.htm
Investigación y Desarrollo. "Corals surviving ocean's pollution." ScienceDaily. www.sciencedaily.com/releases/2013/12/131202082404.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Dinosaur Species Found in Museum Collection

New Dinosaur Species Found in Museum Collection

Reuters - Innovations Video Online (Nov. 27, 2014) — A British palaeontologist has discovered a new species of dinosaur while studying fossils in a Canadian museum. Pentaceratops aquilonius was related to Triceratops and lived at the end of the Cretaceous Period, around 75 million years ago. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Classic Hollywood Memorabilia Goes Under the Hammer

Classic Hollywood Memorabilia Goes Under the Hammer

Reuters - Entertainment Video Online (Nov. 26, 2014) — The iconic piano from "Casablanca" and the Cowardly Lion suit from "The Wizard of Oz" fetch millions at auction. Sara Hemrajani reports. Video provided by Reuters
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins