Featured Research

from universities, journals, and other organizations

Going Fishing? Only Some Catch And Release Methods Let The Fish Live

Date:
June 4, 2007
Source:
New South Wales Department of Primary Industries
Summary:
Scientists are investigating ways to boost the survival rates of fish caught and then released by anglers. Guidelines designed to improve fish survival were recently developed for released line-caught snapper, silver trevally, mulloway, sand whiting, yellowfin bream and dusky flathead.

Experts recommend avoiding use of nets to pick up fish. If absolutely necessary, use fish-friendly landing nets with soft knotless mesh to reduce harm to a fish's scales, skin, eyes and fins.
Credit: Image courtesy of New South Wales Department of Primary Industries

NSW Department of Primary Industries (DPI) fisheries scientists are investigating ways to boost the survival rates of several more species of fish caught and then released by anglers.

Related Articles


Some guidelines designed to improve fish survival were recently developed for released line-caught snapper, silver trevally, mulloway, sand whiting, yellowfin bream and dusky flathead.

The research, costing more than $1.5 million and funded by NSW DPI and the Recreational Fishing Trust (using money from licence fees), is developing protocols designed to maximise fish survival via subtle changes to management practices.

Owing to bag limits, legal sizes and non-consumptive angling, between 30 and 50% of the total recreational catch is released each year in Australia. This amounts to more than 47 million fish being caught and released annually.

New research is now seeking to maximise the post-release survival of other commonly-caught species including luderick, sand mullet, garfish, tailor, Australian bass, Murray cod and golden perch.

NSW DPI scientists Matt Broadhurst and Paul Butcher have shown that mortality rates can be significantly improved through changed practices.

Key recommendations from an initial two-year project are that fishers should:

  • Cut the line on fish that swallow hooks
  • Remove hooks caught in the fish’s mouth
  • Minimise air exposure
  • Use landing nets without knotted mesh
  • Maintain water quality in on-boat holding tanks, and
  • Use the right rig for the fish species being targeting.

Dr Broadhurst said some of these actions were found to massively boost fish survival.

“Simply cutting the line rather than attempting to remove hooks swallowed by mulloway and yellowfin bream increased their survival from 12 percent to more than 85 percent.

“Up to 76 percent of the released line-cut, gut-hooked yellowfin bream then shed their hooks over an average of three weeks”, he said.

Reference: Butcher, P.A., Broadhurst, M.K., Reynolds, D., Reid, D.D. and Gray, C., 2007. 'Effects of release method and anatomical hook location on the mortality of angler-caught yellowfin bream (Acanthopagrus australis) and mulloway (Argyrosomus japonicus)', Diseases of Aquatic Organisms, 74: 17-26.


Story Source:

The above story is based on materials provided by New South Wales Department of Primary Industries. Note: Materials may be edited for content and length.


Cite This Page:

New South Wales Department of Primary Industries. "Going Fishing? Only Some Catch And Release Methods Let The Fish Live." ScienceDaily. ScienceDaily, 4 June 2007. <www.sciencedaily.com/releases/2007/06/070601101117.htm>.
New South Wales Department of Primary Industries. (2007, June 4). Going Fishing? Only Some Catch And Release Methods Let The Fish Live. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2007/06/070601101117.htm
New South Wales Department of Primary Industries. "Going Fishing? Only Some Catch And Release Methods Let The Fish Live." ScienceDaily. www.sciencedaily.com/releases/2007/06/070601101117.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, December 19, 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
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
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
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