Welcome to FIS   Sponsored By
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


Lesions presented on sampled coral trout, Plectropomus leopard. (Photo: ncl.ac.uk/ Sweet et al)

Melanoma found in wild marine fish

Click on the flag for more information about United Kingdom UNITED KINGDOM
Thursday, August 02, 2012, 23:50 (GMT + 9)

A new study has identified widespread skin cancer in wild marine fish populations for the first time. The study describes the incidence of melanoma in 15 per cent of coral trout (Plectropomus leopardus) on the Great Barrier Reef and directly underneath the largest hole in the planet’s ozone layer.

The results of the collaborative study between Newcastle University, UK, and the Australian Institute of Marine Science were published in the academic journal PLoS ONE.

Led by Newcastle University's Dr Michael Sweet, the team claims the appearance of the melanoma is nearly identical to that found in humans.

"Further work needs to be carried out to establish the exact cause of the cancer but having eliminated other likely factors such as microbial pathogens and marine pollution, UV radiation appears to be the likely cause," explained Sweet.

The scientists do not know for how long these fish have been suffering from cancer.

"However, what we do know is that it is now widespread in the coral trout population effecting three different species of this type of fish and we would not be surprised to find it in other species as well," he added.

Diseased fish were collected in two locations in the southern Great Barrier Reef Marine Park. Anecdotal evidence suggests minimal occurrence in other regions of the GBR and in other coral trout species.

Of the 136 fish sampled, 20 (15 per cent) showed dark lesions on the skin which covered 5 to 100 per cent of the skin and had an almost entirely black appearance. Dr Sweet called these numbers significant.

"The individuals we looked at had extensive – but only surface – melanomas," he said. "This means the cancer had not spread any deeper than the skin so apart from the surface lesions the fish were basically healthy.”

"Once the cancer spreads further you would expect the fish to become quite sick, becoming less active and possibly feeding less, hence less likely to be caught. This suggests the actual percentage affected by the cancer is likely to be higher than observed in this study," Sweet continued.

In contrast, three outside experts read the study and each concluded independently that the new lesions may not actually be cancers, Science News reports.

But even if they were, these skin cancers are not unique in wild marine fish, they said: Vicki Blazer, a pathologist at the US Geological Survey’s (USGS) National Fish Health Research Laboratory in Kearneysville, West Virginia, explained that skin cancers affecting fish in the Great Lakes and Chesapeake Bay have been reported “for decades.”
 
It is possible that trout cross-breeding – or hybridisation – may be taking place and playing a role in the coral trout's susceptibility to cancer, the team noted.

The next step in the study is to analyse a much larger sample and determine the extent of disease presence and causation within the stocks.

Moreover, research on the potential links of this melanoma to increases in UV radiation from stratospheric ozone depletion needs to be completed, according to the scientists.

By Natalia Real
[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Russian Federation
Oct 29, 08:00 (GMT + 9):
IN BRIEF - Crisis in the Pollock Catchers Association: Russian Fishery Company 'sailed to court'
European Union
Oct 29, 08:00 (GMT + 9):
The fisheries Brexit negotiation must exclude the privileges that the Common Fisheries Policy has granted to the UK since its inception
Mauritania
Oct 29, 05:00 (GMT + 9):
CEPESCA publishes the images of the rescue yesterday by the F/V 'Riodomar IV' of 215 immigrants
Maldives
Oct 29, 05:00 (GMT + 9):
Media Statement from Government of Maldives on the status of Indian Ocean yellowfin tuna stock (video)
European Union
Oct 29, 01:30 (GMT + 9):
Otros Medios | Industrias Pesqueras: La EUFA demanda que el acuerdo de ‘brexit’ acabe con los 'privilegios' de Reino Unido en la PPC
Russian Federation
Oct 29, 01:00 (GMT + 9):
Federal Agency for Fishery report on salmon season and roes
Spain
Oct 29, 00:50 (GMT + 9):
Other Media | Alimarket: Carrefour increases its sales by 7.5% from January to September
European Union
Oct 29, 00:00 (GMT + 9):
Other Media | La Voz de Galicia: Brussels proposes new cuts for hake, monkfish and Iberian rooster
Russian Federation
Oct 28, 20:00 (GMT + 9):
As of October 26, Russian fishermen have caught more than 4.2 million tonnes
Norway
Oct 28, 19:00 (GMT + 9):
Fish Pool Salmon Price Status Report for week 44
Solomon Islands
Oct 28, 17:00 (GMT + 9):
Operation Kurukuru air surveillance on Illegal, Unregulated and Unreported (IUU) fishing
Japan
Oct 28, 16:30 (GMT + 9):
Auction prices for common squid (surume ika, todarodes pacificus) frozen on board │ Ogi market (until oct-23)
United States
Oct 28, 09:00 (GMT + 9):
What threat do microplastics, a.k.a. ‘ocean hitchhikers’, pose to aquaculture?
United States
Oct 28, 07:00 (GMT + 9):
PRESS RELEASE - NWAA STATEMENT REGARDING PATAGONIA AND THE WILD FISH CONSERVANCY (video)
France
Oct 28, 05:50 (GMT + 9):
Mediterranean bluefin tuna fishery now MSC certified



Lenguaje
FEATURED EVENTS
  
TOP STORIES
The course of pelagic fishing week 43
Norway This autumn's best NVG herring week and less mackerel from the North Sea Mackerel: We received significantly smaller quantities of mackerel than in the previous three weeks. A total of 23,100 to...
Statistics │ Import by origin │Crab │ September 2020
South Korea Source: FIS.com | Click to enlarge it [email protected] www.fis.com...
Tuna exports to Italy soar in September
Viet Nam NDO/VNA – Vietnam’s tuna exports to Italy soared by 8,599% last month over the same period last year. This staggering increase transformed Italy into Vietnam's largest tuna market in the EU in ...
Coast Guard saves sinking fishing vessel near Icy Bay, Alaska
United States KODIAK, Alaska — The Coast Guard assisted a fishing vessel taking on water and disabled, six miles south of Icy Bay, Alaska, Wednesday. A Coast Guard Air Station Sitka MH-60 Jayhawk helicopte...
 
Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods, Inc
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO - Food and Agriculture Organization - Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly Marine Harvest ASA) - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2020 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER