Featured Research

from universities, journals, and other organizations

A fish's personality may determine how it is captured

Date:
October 5, 2011
Source:
Queen's University
Summary:
A fish's personality may determine how it is captured. This association between personality difference and capture-technique could have significant evolutionary and ecological consequences for affected fish populations, as well as for the quality of fisheries.

Whether a fish is timid or bold may determine how it is likely to be captured, indicates research conducted at Queen's University Biological Station.
Credit: Image courtesy of Queen's University

A fish's personality may determine how it is captured. This association between personality difference and capture-technique could have significant evolutionary and ecological consequences for affected fish populations, as well as for the quality of fisheries.

Anglers fishing near rocky outcrops or in areas of water with submerged vegetation may be more likely to catch timid fish, while those fishing in open water may be more likely to reel in bolder fish, according to new research conducted at Queen's University Biological Station.

"Boldness -- the tendency of an individual to take risks -- is one personality trait of considerable interest to behavioural biologists," explains lead author Alexander Wilson, a visiting biologist from Carleton University. "Ours is the first study to have characterized a relationship between capture technique and individual boldness in a wild population of fish."

The researchers examined the personalities of bluegill sunfish caught by two different capture techniques -- angling (a hook attached to a fishing line) and beach seining (a long net that is dragged through water to encircle fish).

Fish caught in the wild by angling were more timid than fish captured in the wild using a seine net. However, when a group of fish captured by seine net was then released in a large outdoor pool and angled for, it was the bold individuals who were most often caught in the open.

According to Dr. Wilson, these findings make ecological sense. Despite spending equal times angling in open water areas and in areas with refuge, the researcher caught more fish in the areas with refuge -- a habitat that appeals more to timid fish. On the other hand, beach seining or angling in open water are both capture techniques that are more likely to target bolder, risk-taking fish.


Story Source:

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


Journal Reference:

  1. Alexander D.M. Wilson, Thomas R. Binder, Keegan P. McGrath, Steven J. Cooke, Jean-Guy J. Godin, Cliff Kraft. Capture technique and fish personality: angling targets timid bluegill sunfish,Lepomis macrochirus. Canadian Journal of Fisheries and Aquatic Sciences, 2011; 68 (5): 749 DOI: 10.1139/f2011-019

Cite This Page:

Queen's University. "A fish's personality may determine how it is captured." ScienceDaily. ScienceDaily, 5 October 2011. <www.sciencedaily.com/releases/2011/10/111004151635.htm>.
Queen's University. (2011, October 5). A fish's personality may determine how it is captured. ScienceDaily. Retrieved September 19, 2014 from www.sciencedaily.com/releases/2011/10/111004151635.htm
Queen's University. "A fish's personality may determine how it is captured." ScienceDaily. www.sciencedaily.com/releases/2011/10/111004151635.htm (accessed September 19, 2014).

Share This



More Plants & Animals News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Chimp Violence Study Renews Debate On Why They Kill

Chimp Violence Study Renews Debate On Why They Kill

Newsy (Sep. 17, 2014) The study weighs in on a debate over whether chimps are naturally violent or become that way due to human interference in the environment. Video provided by Newsy
Powered by NewsLook.com
Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
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:
from the past week

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