Featured Research

from universities, journals, and other organizations

New study shows inbreeding in winter flounder in Long Island's bays

Date:
July 24, 2013
Source:
Stony Brook University
Summary:
Research conducted in six bays of Long Island, NY has shown that local populations of winter flounder are inbred, which is a situation that is not usually considered in marine fisheries management.

Inbreeding in marine fish, such as winter flounder, historically, has not been a serious concern because of their ability to move through larger areas to find mates and their much larger population sizes has made it unlikely they would spawn with relatives.
Credit: Jerry Prezioso, NOAA

Research conducted in six bays of Long Island, NY, and led by scientists from the School of Marine and Atmospheric Sciences at Stony Brook University (SBU) showed that local populations of winter flounder are inbred, which is a situation that is not usually considered in marine fisheries management. The scientists also determined that the effective number of breeders in each bay was below 500 fish, suggesting that the spawning populations of this historically common fish are now relatively small in the area.

Related Articles


"Severe inbreeding and small effective number of breeders in a formerly abundant marine fish," was published online in the journal PLOS ONE, and is one of the first studies indicating the occurrence of inbreeding in a marine fish. The scientists extracted genomic DNA from the fins of 267 young of the year winter flounder caught over a period of several months in 2010 and 2011, and used 11 polymorphic microsatellite loci (molecular markers) to test for genetic diversity.

"While documented to occur in freshwater fish, inbreeding in marine fish is generally not a serious concern because of their perceived ability to move through larger areas to find mates and, historically anyway, their much larger population sizes making it unlikely they would spawn with relatives," said Shannon O'Leary, lead author and doctoral student at SBU. "Our research suggests that the possibility of inbreeding should be considered in the management of some commercially and recreationally exploited marine fish."

Inbreeding has been linked to lower survival and reproductive rates as well as lower resistance to disease and environmental stress, which could directly contribute to the failure of fish populations to recover from exploitation. However, since inbreeding has not been considered likely in marine fish, current fisheries management practices have been developed without incorporating its associated risks.

"We are just beginning to realize that marine fish frequently exist as a series of smaller subpopulations as opposed to one large, well-mixed and widely distributed population," said Dr. Demian Chapman, leader of the research team, who is an assistant professor in the School of Marine and Atmospheric Science and assistant director for science at the Institute for Ocean Conservation Science at SBU. "The evidence of inbreeding we have found supports this new paradigm. The number of effective breeders in each bay is also alarmingly low and argues for strong fisheries management and habitat restoration initiatives to rebuild winter flounder populations in Long Island bays."


Story Source:

The above story is based on materials provided by Stony Brook University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Shannon J. O'Leary, Lyndie A. Hice, Kevin A. Feldheim, Michael G. Frisk, Anne E. McElroy, Mark D. Fast, Demian D. Chapman. Severe Inbreeding and Small Effective Number of Breeders in a Formerly Abundant Marine Fish. PLoS ONE, 2013; 8 (6): e66126 DOI: 10.1371/journal.pone.0066126

Cite This Page:

Stony Brook University. "New study shows inbreeding in winter flounder in Long Island's bays." ScienceDaily. ScienceDaily, 24 July 2013. <www.sciencedaily.com/releases/2013/07/130724103005.htm>.
Stony Brook University. (2013, July 24). New study shows inbreeding in winter flounder in Long Island's bays. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2013/07/130724103005.htm
Stony Brook University. "New study shows inbreeding in winter flounder in Long Island's bays." ScienceDaily. www.sciencedaily.com/releases/2013/07/130724103005.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. 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