Navigation Links
Bald reef gets new growth with seaweed transplant
Date:1/14/2014

SYDNEY: Marine ecologists in Sydney have successfully restored a once thriving seaweed species, which vanished along a stretch of the city's coastline during the 1970s and 80s during high levels of sewage outfalls.

A team of researchers from UNSW, the Sydney Institute of Marine Science and the NSW Department of Primary Industries has transplanted fertile specimens of the missing crayweed (Phyllospora comosa) onto two barren reef sites where it once grew abundantly.

They took seaweed from Palm Beach and Cronulla and transplanted it to Long Bay and Cape Banks. Their results are reported in the journal PLOS ONE.

"Seaweeds are the 'trees' of the oceans, providing habitat structure, food and shelter for other marine organisms, such as crayfish and abalone," says lead author, Dr Alexandra Campbell, from the UNSW Centre for Marine Bio-Innovation.

"The transplanted crayweed not only survived similarly to those in natural populations, but they also successfully reproduced. This creates the potential for a self-sustaining population at a place where this species has been missing for decades," she says.

Large brown seaweeds known as macroalgae along temperate coastlines, like those in NSW, also encourage biodiversity and are important to the region's fishing and tourism industries.

However, these seaweed ecosystems face increasing threats of degradation due to human impacts and ocean warming. The authors say the potential environmental and economic implications of losing these habitats would be comparable to the more highly publicised loss of Australia's tropical coral reefs.

In 2008, researchers from UNSW and the NSW Department of Primary Industries (DPI) showed that a 70 km stretch of this important habitat-forming crayweed had vanished from the Sydney coast decades earlier, coinciding with a period known for high levels of sewage.

Despite improved water quality around Sydney after the introduction of better infrastructure in the 1990s, which pumped sewage into the deeper ocean, the 70 km gap of depleted 'underwater forest' between Palm Beach and Cronulla - has never been able to recover naturally.

Now, with some well-executed intervention, it looks as though this habitat-forming crayweed could make a successful comeback in Sydney's coastal waters.

"This is an environmental good news story," says research supervisor UNSW Professor Peter Steinberg, Director of the Sydney Institute of Marine Science.

"This kind of restoration study has rarely been done in these seaweed-dominated habitats, but our results suggest that we may be able to assist in the recovery of underwater forests on Sydney's reefs, potentially enhancing biodiversity and recreational fishing opportunities along our coastline."

The researchers say their results could provide valuable insights for restoring similar macroalgae marine ecosystems in Australia and globally, but further research is needed to understand the complex processes that affect recruitment and survival.


'/>"/>

Contact: Deborah Smith
deborah.smith@unsw.edu.au
61-293-857-307
University of New South Wales
Source:Eurekalert  

Related biology news :

1. Embryonic development protein active in cancer growth
2. The effect of catch-up growth by various diets and resveratrol intervention on bone status
3. Salk scientists open new window into how cancers override cellular growth controls
4. New Biotech and Pharmaceutical Market Research from Global Information Inc Forecasts Strong Growth Coming Out of Recession
5. Global Surgical Devices Market Growth Driven by Improving Standards of Living and Longer Life Expectancies, Research Shows
6. Research shows how PCBs promote dendrite growth, may increase autism risk
7. Fruit flies provide new knowledge about uninhibited cell growth
8. Polluting China for the sake of economic growth
9. Researchers find reducing fishmeal hinders growth of farmed fish
10. Updates in Interventional Radiology accents emerging trends, practice growth
11. Plant growth without light control
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bald reef gets new growth with seaweed transplant
(Date:3/22/2016)... Ontario , PROVO and ... Newborn Screening Ontario (NSO), which operates the ... for molecular testing, and Tute Genomics and UNIConnect, ... management technology respectively, today announced the launch of a ... next-generation sequencing (NGS) testing panel. NSO ...
(Date:3/15/2016)... JERUSALEM , March 15, 2016 ... Jerusalem , the technology-transfer company of the Hebrew University, ... developer of remote sensing technology of various human biological ... funding, raising $2.0 million from private investors. ... technology, based on the detection of electromagnetic emissions from ...
(Date:3/10/2016)... PUNE, India , March 10, 2016 ... to a new market research report "Identity and Access ... SSO, & Audit, Compliance, and Governance), by Organization Size, ... Forecast to 2020", published by MarketsandMarkets, The market is ... to USD 12.78 Billion by 2020, at a Compound ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... -- The report "Cryocooler Market by Type ... Support, Product Repairs & Refurbishment, Preventive Maintenance, and Customer ... published by MarketsandMarkets, the global market is expected to ... CAGR of 7.29% between 2016 and 2022. ... spread through 159 Pages and in-depth TOC on  "Cryocooler ...
(Date:4/28/2016)... ... April 28, 2016 , ... Connecticut Innovations (CI), ... today announced the launch of VentureClash , a $5 million global investment ... “VentureClash looks to attract the best early-stage companies here in Connecticut, around the ...
(Date:4/28/2016)... ... 28, 2016 , ... As part of an ongoing global ... expanding its LATAM network and logistics capabilities. Enhancements have been made to ... trial projects. , The expansion will provide unmatched clinical trial logistics services for ...
(Date:4/27/2016)... (PRWEB) , ... April 27, 2016 , ... Cambridge ... by semantic web technology, today announced that it has been named to The Silicon ... sciences, financial services and other markets, Cambridge Semantics serves the needs of end users ...
Breaking Biology Technology: