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Issue 93 - February 2023

Xanthochromism in Petrale Sole

Contributed by Peter Adame, Director of Communications & Sustainability at Lusamerica Foods Inc.

Petrale sole is a brown West Coast flatfish that’s not particularly sexy. Thousands are caught by US West Coast groundfish trawlers every day, but the crew on the F/V Noah’s Ark caught one that was a complete anomaly. The fish shined a bright yellowy-orange, something none of the crew had seen in their lifetime. The orange petrale sole was landed on Tuesday, January 24, 2023, at Lusamerica Seafood’s dock in Moss Landing Harbor, located in the heart of Monterey Bay, California.

“It’s very rare to catch a fish with this strange pigmentation as it’s a very odd condition and even slimmer odds for it to survive the first couple years of life. You don’t really blend into the brown sea floor when you’re rocking those colors,” sa,id Peter Adame, Lusamerica’s Director of Communications and Sustainability.

In a TikTok video posted by Lusamerica Seafood, crewmember “Big Rick” narrates from the boat how he has been fishing for over 43 years and has never caught anything like it.  

The condition is called Xanthochromism, an abnormal skin coloration of yellow to orange-gold. It’s an uncommon phenomenon in nature and xanthochromic specimens are rare. A fish being able to survive to adulthood with that condition makes it even more impressive.

“We’re taking the rare catch as a good omen as it was the first time the F/V Noah’s Ark unloaded in Moss Landing—a harbor that currently had zero active groundfish trawlers until the F/V Noah’s Ark docked on Tuesday. Groundfish fishing used to be the stable fishery on our West Coast ports but there aren’t many groundfish fishermen left after the fishery collapsed in 2000. The fish populations bounced back in 2014 thanks to strict management, but many of the fishermen left the area,” says Peter Adame.

Lusamerica’s been investing in the local seafood economy for several years by adding new infrastructure at their dock in Moss Landing and adding a local fish filleting line at their processing facility in nearby Morgan Hill. But having a larger fishing vessel like the F/V Noah’s Ark join the Moss Landing fishing community is a milestone for the harbor and larger West Coast groundfish recovery.

Lusamerica is the owner of the brand Monterey Bay Seafood and distributes seafood to businesses across the U.S. West Coast. In addition to Moss Landing Harbor, they also work directly with groundfish fishermen out of Fort Bragg’s Noyo Harbor in Northern California.

Source on Xanthochromism: (PDF) First Records of Xanthochromism in Four Marine Fish Species Collected from the Arabian Sea Coasts of Pakistan (researchgate.net)


Issue 93 - February 2023

SEVENSEAS Travel Magazine – February 2023 – Issue 93

Cover Issue 93 Feb

Feature Destination

The National Marine Park of Alonissos and Northern Sporades

Ship wreck at Alonnisos

The National Marine Park of Alonissos and Northern Sporades was the first marine park established in Greece and is currently the largest marine protected area in Europe. The National Marine Park of Alonissos and Northern Sporades is member of the MedPAN (Network of Marine Protected Areas in the Mediterranean). Read more…

Monachus Monachus in The Mediterranean

Mediterranean monk seal in Greece

The scientific name of the monk seal is Monachus monachus has been named after either the top of its head, which looks like it is wearing a Roman Catholic monk cap, or its tendency not to live in large groups preferring isolation from the human presence. Read more…

Volunteer at Alonissos, the Largest Marine Park in the Mediterranean

Boat on volunteer trip at Alonnisos

Environmentally aware individuals are invited to offer volunteer work at the first National Marine Park in Greece and the largest in the Mediterranean, which was established in 1992. Volunteers will help the Management Body of the NMPANS. Read more…


NEWSROOM

Marine Plankton Tell the Long Story of Ocean Health & Maybe Human Too

Diatoms through the microscope

Using samples from an almost century-old, ongoing survey of marine plankton, researchers at University of California San Diego School of Medicine suggest that rising levels of manmade chemicals found in parts of the world’s oceans might be used to monitor the impact of human activity on ecosystem health. Read more…

New Funding Could Put North East On The Map As a Climate Leader

Team adding oysters into nursery at Wild Oysters_ Tyne _ Wear site. Credit_ Celine Gamble, ZSL

South Tyneside Council has secured £6.9m in funding for the region’s Stronger Shores initiative, which will take a new approach to make British coastlines and communities stronger in the face of flooding, erosion and the impacts of climate change. Read more…

The Nature Conservancy Launches Southeast Marine Mapping Tool

Green sea turtle glides over the ocean floor © Rachel Hancock Davis

The Nature Conservancy (TNC) announces the launch of the new Southeast Marine Mapping Tool, a digital tool that allows decision-makers to draw from the best available regional data when making ocean planning decisions. Developed by scientists at The Nature Conservancy. Read more…

SAWFISH NEWS: Florida’s Endangered Smalltooth Sawfish

The population of smalltooth sawfish (Pristis pectinata) in the United States was once found in coastal waters from Texas to North Carolina. However, smalltooth sawfish populations declined dramatically during the second half of the 20th century. Read more…

How YOU can help the Mediterranean monk seal

Monk Seal Conservation in Greece

MOm / The Hellenic Society for the Study and Protection of the Monk seal is a Greek non–governmental environmental organization with the legal status of a Non–profit association. MOm is active in the protection and promotion of the coastal and marine environment of Greece. Read more…

Using Fungi, Researchers Convert Ocean Plastic Into Ingredients for Drug Industry

The chemical–biological approach for converting polyethylene uses an everyday soil fungus called Aspergillus nidulans that has been genetically altered. The results were reported recently in the paper “Conversion of Polyethylenes into Fungal Secondary Metabolites.” Read more…

Summer Heatwaves, Low Oxygen Proves Deadly for Bay Scallops as Fishery Collapses in New York

Islands around the world have been decimated by introduced invasive species, but restoriA new study by Stony Brook University researchers published in Global Change Biology  demonstrates that warming waters and heat waves have contributed to the loss of an economically and culturally important fishery, the production of bay scallops. Read more…

Short-Term Bang of Fireworks Has Long-Term Impact On Wildlife: Study Says

Popular fireworks should be replaced with cleaner drone, and laser light shows to avoid the “highly damaging” impact on wildlife, domestic pets and the broader environment, new Curtin-led research has found. Read more…

100+ Organisations Call on The EU to Rebuild Tuna Stocks & Protect Our Oceans

An urgent call by more than 100 environmental organisations, fishing groups and retailers was made yesterday directly to the European Commission, the Directorate-General for Maritime Affairs and Fisheries (MARE), all Heads of State of the European Union and the EU Committee on Fisheries to address the harmful environmental impacts. Read more…

Xanthochromism in Petrale Sole

Petrale sole is a brown West Coast flatfish that’s not particularly sexy. Thousands are caught by US West Coast groundfish trawlers every day, but the crew on the F/V Noah’s Ark caught one that was a complete anomaly. The fish shined a bright yellowy-orange, something none of the crew had seen in their lifetime. Read more…


SEVENSEAS Beach Cleanups

In August 2022 CleanUp, we picked up over 80 kilogram of plastic, pieces of glasses, tractor tyre, and fishing nets from the beach in Krabi, Long Beach or Pan Beach. Of course, we would not be able to do it without your support. You can make a tax-deductible donation here to keep our publications and Thailand Cleanup Project afloat.

You can either make a direct financial contribution to SEVENSEAS Media through The Ocean Foundation website or connect us with potential donors by sending an email to  Giacomo Abrusci, our Editor-in-Chief.


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Signing up for the free Weekly Newsletter & Jobs List will get you a round-up of upcoming events, webinars, meetings, reports, funding opportunities, photos of the week, and recent postings to the jobs list.

To sign up for our free subscription, please Click Here or email us Here

Since 2004, SEVENSEAS Media has fostered an informal and non-partisan platform to promote understanding of key issues and challenges while building partnerships across an increasingly diverse group of marine conservation professionals and students.

Our mission is to promote communication and build partnerships across the global marine community and to identify and address gaps in the community’s work. SEVENSEAS Media achieves this through multimedia promotion and partnerships. The community consists of a diverse and growing group of participants, including non-governmental organizations, government agencies, foundations, bilateral and multilateral agencies, fellowship programs, independent consultants, and academia/students.

If you are interested in contributing or getting involved, email us Here


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Issue 93 - February 2023

100+ Organisations Call on The EU to Rebuild Tuna Stocks & Protect Our Oceans

An urgent call by more than 100 environmental organisations, fishing groups and retailers was made yesterday directly to the European Commission, the Directorate-General for Maritime Affairs and Fisheries (MARE), all Heads of State of the European Union and the EU Committee on Fisheries to address the harmful environmental impacts associated with drifting Fish Aggregating Devices (FADs) used by the industrial European tuna fleet in the Indian Ocean.

The 120 conservation organisations, civil society groups, artisanal fisher associations and responsible businesses, including retailers from around the world, united in the last three days to support the letter that addresses the lack of transparency and accountability associated with the use of drifting FADs  – a type of destructive fishing gear used by EU tuna purse seine vessels. 

Among the 120 signatories are retailers and brands that source tuna from the Indian Ocean. These include Marks & SpencerMIGROSWoolworthsFish TalesFish4EverfollowfoodBig Fish, and Greenfish amongst others. Global conservation organisations such as Seas at RiskWhale and Dolphin ConservationBlue Marine FoundationBirdLife International, Deutsche Stifftung MeereschutzSciaena, and Environmental Investigation Agency (EIA) also endorsed the call to action. Small-scale fishers also added their voice with groups like Fédération des Pêcheurs Artisans de l’Océan Indien (FPAOI) and the Confédération Africaine des Organisations de Pêche Artisanale (CAOPA), requesting action from the EU on FADs

The signatories of the letter emphasised that the EU has a moral and legal obligation to act in the best interests of its 450 million citizens and not only to protect the interests of commercial enterprises in Spain, France and Italy who profit from their fishing operations in the Indian Ocean. The letter also highlighted the EU’s obligation to apply the precautionary approach – a key environmental principle that mandates action to prevent possible environmental damage – at the upcoming Special Session of the Indian Ocean Tuna Commission (IOTC) that will be held in Mombasa, Kenya, on 3-5 February 2023.

Read The Letter & The Request of Its 120 Signatories Here

The IOTC Special Session is being held in the wake of rampant overfishing of the region’s tuna stocks. The valuable Indian Ocean yellowfin tuna stock is overfished and has been since 2015. Recently, the region’s bigeye tuna stock has also been assessed as overfished and subject to overfishing. Scientists have consistently shown strong links between dwindling tropical tuna stocks and the high numbers of juvenile tuna caught around drifting FADs. A recent study showed that 97% of the yellowfin tuna caught around drifting FADs in the Indian Ocean are juveniles

According to 2020 statistics, the EU fleet caught 217,000 tonnes of tuna in the western Indian Ocean. Of this catch, 69% was taken by Spain, 28% by France, 2% by Italy and 1% by Portugal. The catch consisted mainly of skipjack, yellowfin and bigeye tuna, with more than 60% of the yellowfin tuna in the Indian Ocean caught by EU vessels.

Martin Purves, IPNLF’s Managing Director, who will be attending the meeting in Mombasa, said:

This upcoming Special Session of the IOTC provides an important opportunity for the EU to act responsibly and to play a leadership role in driving improvements in FAD fishing operations. The lack of transparency in how these fishing operations are conducted, the lack of responsibility taken by FAD owners for the damage caused to sensitive ecosystems by these devices and the overall lack of effective management of drifting FAD fishing operations all needs to be addressed as a matter of urgency. We all need to work together to ensure that Indian Ocean tuna stocks and the livelihoods that depend on them are safeguarded into the future.”

The EU’s delegation to the IOTC previously pushed back in 2021 and 2022 at attempts to improve existing FAD management measures, arguing that that there is a lack of scientific data on which to base such management decisions. The letter argues, however, that the precautionary approach is not only incorporated as a resolution at the IOTC but is also specifically mentioned under Article 6 of the UN Fish Stocks Agreement (UNFSA) and the EU’s own fishery law adopted under the Common Fisheries Policy.

Tuna fisheries are among the most highly capitalised and valuable fisheries in the world. Tunas are not only a sought-after commodity, but also an important source of protein. They also play a vital role as predators and prey in tropical and temperate marine ecosystems while supporting the livelihoods of many artisanal fishers.

In the Indian Ocean the millions of juvenile yellowfin and bigeye tuna caught around FADs could have grown to much larger fish to feed coastal communities. There is also lots of evidence that FADs are causing serious environmental damage in coastal areas where communities are the most vulnerable in terms of poverty, climate change and impacts on their food security. 

The signatories expressed the hope that their call to action will be acknowledged and the EU will show leadership as an important actor on global marine conservation.


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Issue 93 - February 2023

Short-Term Bang of Fireworks Has Long-Term Impact On Wildlife: Study Says

By Curtin University

Popular fireworks should be replaced with cleaner drone and laser light shows to avoid the “highly damaging” impact on wildlife, domestic pets and the broader environment, new Curtin-led research has found.

The new research, published in Pacific Conservation Biology, examined the environmental toll of firework displays by reviewing the ecological effects of Diwali festivities in India, Fourth of July celebrations across the United States of America, and other events in New Zealand and parts of Europe.

Examples included fireworks in Spanish festivals impacting the breeding success of House Sparrows, July firework displays being implicated in the decline of Brandt’s Cormorant colonies in California, and South American sea lions changing their behaviour during breeding season as a result of New Year’s fireworks in Chile.

Lead author Associate Professor Bill Bateman, from Curtin’s School of Molecular and Life Sciences, said fireworks remained globally popular despite the overwhelming evidence that they negatively impacted wildlife, domestic animals and the environment.

“Fireworks create short-term noise and light disturbances that cause distress in domestic animals that may be managed before or after a firework event, but the impacts to wildlife can be on a much larger scale,” Associate Professor Bateman said.

“The annual timing of some large-scale firework events coincides with the migratory or reproductive movements of wildlife, and may therefore have adverse long-term population effects on them. Fireworks also produce significant pulses of highly pollutant materials that also contribute significantly to the chemical pollution of soil, water, and air, which has implications for human as well as animal health.”

Associate Professor Bateman said firework bans at sensitive periods for wildlife migration or mating periods could limit the impact, as well as drone or other light-based shows.

“Other than horses, for which there is some evidence that they can be gradually familiarised with flashes of light, there is very little that can be done to address the disturbing impact of noise from fireworks on animals and wildlife,” Associate Professor Bateman said.

“The future of firework displays may be in the use of safer and greener alternatives such as drones, eco- friendly fireworks or visible-wavelength lasers for light shows.

“There is growing evidence that these community events can be managed in a sustainable way and it’s clear that out-dated firework displays need to be replaced by cleaner options that are not harmful to wildlife and the environment.”

The full paper, ‘Not just a flash in the pan: short and long term impacts of fireworks on the environment’, is available online here.


About Curtin University

Curtin University is Western Australia’s largest university, with close to 60,000 students. In addition to the University’s main campus in Perth, Curtin also has a major regional campus in Kalgoorlie, and a campus in Midland, as well as four global campuses in Malaysia, Singapore, Dubai and Mauritius. Curtin staff and students come from Australia and over 120 other countries around the world, with half our international students studying at Curtin’s offshore campuses.

Curtin is ranked in the top one per cent of universities worldwide, with the University placed 9th in Australia according to the Academic Ranking of World Universities (ARWU) 2022 and has achieved a QS Five Stars Plus rating, the highest available for a tertiary institution, and one of only five to do so in Australia.

The University has built a reputation around innovation and an entrepreneurial spirit, being at the forefront of many high-profile research projects in astronomy, biosciences, economics, mining and information technology. It is also recognised globally for its strong connections with industry, and for its commitment to preparing students for the jobs of the future.

For further information, visit curtin.edu.au.


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