Featured Research

from universities, journals, and other organizations

Nine new species for Tasmania's disappearing handfish family

Date:
May 24, 2010
Source:
CSIRO Australia
Summary:
Nine new species of handfish have been described by Australian scientists in research that highlights an urgent need to better understand and protect the diversity of life in Australia's oceans. The review brings the family to 14 known species -- six found only in Tasmania and one known from only one specimen possibly collected in Tasmania by early European explorers, yet not recorded since. It also deepens concerns about declining populations of some handfishes.

The Zeibell's handfish is restricted to isolated populations off eastern and southern Tasmania.
Credit: Andrew Maver

Nine new species of handfish have been described by CSIRO in research that highlights an urgent need to better understand and protect the diversity of life in Australia's oceans.

Related Articles


The new species are described in a review of the handfish family by Hobart-based fish taxonomists from the CSIRO Wealth from Oceans Flagship, Daniel Gledhill and Peter Last.

Supported by funding from the Department of the Environment, Water, Heritage and the Arts, the review of the handfishes brings the family to 14 known species -- six found only in Tasmania and one known from only one specimen possibly collected in Tasmania by early European explorers, yet not recorded since. It also deepens concerns about declining populations of some handfishes.

"Handfishes are small, often strikingly patterned or colourful, sedentary fish that tend to 'walk' on the seabed on hand-like fins, rather than swim. Fifty million-years ago, they 'walked' the world's oceans, but now they exist only off eastern and southern Australia," Mr Gledhill says.

"They are of great importance to understanding the origins of Australian marine life, the role of Australia as a refuge during previous periods of change, and the effects on living species of habitat alteration and rapid climate change."

Dr Last says handfishes are extremely vulnerable to environmental change -- introduced species, pollution, siltation, fishing, sea-temperature rise and coastal development -- due to their scarcity, patchy distribution, life history strategy, low breeding rates and poor dispersal ability.

(The Spotted Handfish is listed as endangered under the Environment Protection and Biodiversity Conservation Act 1999 and the Red Handfish and Ziebell's Handfish are listed as vulnerable.)

"There is evidence of shallow-water species disappearing quickly, from being common in certain areas a few decades ago, to apparently being locally extinct in some areas," Dr Last says.

"It's not just two or three handfish species of concern. Our work has described nine new species, each with its own environmental niches and needs, and several of these appear to have very restricted distributions, and/or occur in very low abundance."

Mr Gledhill says the handfishes have proven difficult to classify due to their rarity and a lack of specimens.

One of the newly named species, the Pink Handfish, is known from only four specimens and was last recorded off the Tasman Peninsula in 1999. The Pink Handfish will feature in a photographic exhibition of Australia's marine biodiversity that opens May 21 at Questacon in Canberra.

The exhibiton is mounted by the Marine Biodiversity Hub, a national research partnership charged with furthering knowledge of Australia's oceans, and coincides with the United Nations' International Year of Biodiversity (2010) and International Biodiversity Day, 22 May 2010.

Professor Nic Bax of CSIRO and the University of Tasmania, director of the Marine Biodiversity Hub, says the exhibition offers a wonderful opportunity to acquaint young Australians with the beauty and challenges presented by Australia's vast ocean realm.

"More than half of Australia's territory is ocean, and some 95 per cent of this world is yet to be explored," he says.

CSIRO initiated the National Research Flagships to provide science-based solutions to Australia's major research challenges and opportunities. The 10 Flagships form multidisciplinary teams with industry and the research community.

The Marine Biodiversity Hub is a collaborative partnership funded by the Commonwealth Environment Research Facilities program, an Australian Government initiative supporting world class, public good research. Its partners include Tasmanian Fisheries and Aquaculture Institute, University of Tasmania; CSIRO Wealth from Oceans National Flagship; Geoscience Australia; Australian Institute of Marine Science; and Museum Victoria.


Story Source:

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


Cite This Page:

CSIRO Australia. "Nine new species for Tasmania's disappearing handfish family." ScienceDaily. ScienceDaily, 24 May 2010. <www.sciencedaily.com/releases/2010/05/100524101358.htm>.
CSIRO Australia. (2010, May 24). Nine new species for Tasmania's disappearing handfish family. ScienceDaily. Retrieved March 4, 2015 from www.sciencedaily.com/releases/2010/05/100524101358.htm
CSIRO Australia. "Nine new species for Tasmania's disappearing handfish family." ScienceDaily. www.sciencedaily.com/releases/2010/05/100524101358.htm (accessed March 4, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Wednesday, March 4, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Looted and Leaking, South Sudan's Oil Wells Pose Health Risk

Looted and Leaking, South Sudan's Oil Wells Pose Health Risk

AFP (Mar. 3, 2015) Thick black puddles and a looted, leaking ruin are all that remain of the Thar Jath oil treatment facility, once a crucial part of South Sudan&apos;s mainstay industry. Duration: 01:13 Video provided by AFP
Powered by NewsLook.com
Rare Rescued Butterflies Get New Home at San Diego Zoo

Rare Rescued Butterflies Get New Home at San Diego Zoo

Reuters - Light News Video Online (Mar. 3, 2015) Workers at the San Diego Zoo Safari Park help to save rare butterfly pupae. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Volcano Villarrica Erupts in Southern Chile, Villages Evacuated

Volcano Villarrica Erupts in Southern Chile, Villages Evacuated

Reuters - News Video Online (Mar. 3, 2015) Chile&apos;s Villarrica volcano gives a spectacular display of lava as it erupts in the early morning hours, prompting several thousand to evacuate. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Raw: Fire Burns Iconic SAfrica Mountain

Raw: Fire Burns Iconic SAfrica Mountain

AP (Mar. 3, 2015) Cape Town&apos;s iconic Table Mountain was engulfed by an orange blaze on Monday and Tuesday, blowing thick smoke to the city below, as a wildfire burned across the city&apos;s southern peninsula. (March 3) Video provided by AP
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