Navigation Links
Fishy behaviour

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.

Contact: Christina Archibald
Queen's University

Page: 1

Related biology news :

1. Genetic markers show something fishy with certified Chilean sea bass sales
2. Fishy consequences of transplanting trout, salmon, whitefishes
3. Fishy clue helps establish how proteins evolve
4. Fishy future written in the genes
Post Your Comments:
(Date:6/15/2016)... 15, 2016 Transparency Market ... Recognition Market by Application Market - Global Industry Analysis Size ... to the report, the  global gesture recognition market ... and is estimated to grow at a CAGR ... 2024.  Increasing application of gesture recognition ...
(Date:6/3/2016)... LONDON , June 3, 2016 /PRNewswire/ ... Transport Management) von Nepal ... ,Angebot und Lieferung hochsicherer geprägter Kennzeichen, einschließlich ... weltweit führend in der Produktion und Implementierung ... an der Ausschreibung im Januar teilgenommen, aber ...
(Date:6/1/2016)... , June 1, 2016 Favorable ... Election Administration and Criminal Identification to Boost Global Biometrics ... recently released TechSci Research report, " Global Biometrics Market ... Competition Forecast and Opportunities, 2011 - 2021", the global ... by 2021, on account of growing security concerns across ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... 23, 2016 , ... STACS DNA Inc., the sample tracking software company, today ... Laboratory, has joined STACS DNA as a Field Application Specialist. , “I am ... and COO of STACS DNA. “In further expanding our capacity as a scientific integrator, ...
(Date:6/23/2016)... , June 23, 2016 Apellis ... Phase 1 clinical trials of its complement C3 ... single and multiple ascending dose studies designed to ... (PD) of subcutaneous injection in healthy adult volunteers. ... (SC) either as a single dose (ranging from ...
(Date:6/23/2016)... 2016 Andrew D ... Published recently in ... from touchONCOLOGY, Andrew D Zelenetz , discusses ... care is placing an increasing burden on healthcare ... therapies. With the patents on many biologics expiring, ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... exhibiting at the Pennsylvania Convention Center and will showcase its product’s latest features ... will also be presenting a scientific poster on Disrupting Clinical Trials in The ...
Breaking Biology Technology: