{"id":43123,"date":"2025-11-12T17:31:36","date_gmt":"2025-11-12T22:31:36","guid":{"rendered":"https:\/\/oceana.org\/?p=43123"},"modified":"2025-11-12T17:33:22","modified_gmt":"2025-11-12T22:33:22","slug":"science-at-sea-20-years-of-the-oceana-ranger","status":"publish","type":"post","link":"https:\/\/oceana.org\/blog\/science-at-sea-20-years-of-the-oceana-ranger\/","title":{"rendered":"Science at Sea: 20 Years of the Oceana Ranger"},"content":{"rendered":"\n

Standing in the harbor of California\u2019s Marina del Rey on a cool day in January 2005, actor and Oceana Board Member Ted Danson smashed a bottle of champagne to celebrate Oceana\u2019s new \u201ceyes and ears in the oceans\u201d: a freshly-painted, double-masted ship christened the Oceana Ranger<\/em>.<\/p>\n\n\n\n

Today, despite being nearly 40 years old, the boat\u2019s hull still skims gracefully over the waters. For the first half of its life, the Oceana Ranger <\/em>was a custom-built hospital boat that brought communities medical care. In its second career as Oceana\u2019s research vessel, it is helping to improve the health of the oceans by revealing both the beauty and damage found in their depths.<\/p>\n\n\n\n

Donated by former Oceana Board Member Stephen McAllister, the Ranger <\/em>takes Oceana\u2019s team of scientists \u2014 along with a captain, deckhands, photographers, cook, and crew \u2014 out to sea to deepen our collective understanding of ocean life and build the case for conservation.<\/p>\n\n\n\n

Sailing on a scientific expedition is full of wonders and challenges, but one thing it is not: fast. Oceana\u2019s crew often sails at least a week to reach their research destination, says Oceana\u2019s Senior Advisor and Expedition Lead Ricardo Aguilar. \u201cYou\u2019re moving at the speed of a bike \u2014 and there\u2019s a lot of ocean to cover.\u201d<\/p>\n\n\n\n

Twenty years ago, when his silver beard was a bit darker, Aguilar participated in Oceana\u2019s first and only transoceanic expedition with the Ranger<\/em>: a five-month voyage that took the boat from Los Angeles, down the Pacific Coast, threading Caribbean waters, across the Atlantic, and to the Mediterranean. After documenting dozens of sites along the way, they arrived at the boat\u2019s new base: The Balearic Islands, off the coast of Spain.<\/p>\n\n\n\n

Over the last two decades the Ranger<\/em> has helped Oceana protect and restore Europe\u2019s oceans. Data from these expeditions has helped secure protections for 29 areas in the Mediterranean and Atlantic, plus 12 trawling bans across the region. The photos and videos collected have revealed the depths and dangers of plastic waste and species never before caught on camera.<\/p>\n\n\n\n

To mark the 20-year anniversary of the Ranger<\/em>, enjoy an inside look at photos that have influenced how we understand the oceans \u2014 and why we must fight to protect them.<\/p>\n\n\n\n

Diving deep in the Gorringe Ridge<\/h2>\n\n\n
\n
\"Gorringe
Located in Portuguese waters, the Gorringe Ridge is a group of underwater mountains covered in abundant algae forests.
\u00a9 Oceana\/Juan Carlos Calvin<\/figcaption><\/figure><\/div>\n\n\n

On June 13, 2005, nearing the end of its journey across oceans, the Ranger<\/em> arrived to the Gorringe Ridge \u2014 a group of impressive underwater mountains approximately 120-140 nautical miles off Portugal. Here, researchers embarked on some of their deepest dive<\/a>s: 30 to 40 meters (about 100-130 feet) down.<\/p>\n\n\n\n

The divers saw underwater mountains covered in abundant algae forests, home to gray triggerfish, Mediterranean rainbow wrasse, and slipper lobster. Oceana returned to the area on multiple expeditions over the years and identified over 350 species<\/a> in the Gorringe Ridge \u2014 including species scientists did not know resided there, like branching black coral, bird\u2019s nest sponge, and various other corals.<\/p>\n\n\n\n

Thanks in part to Oceana\u2019s detailed reports about life on the Gorringe Ridge, the government of Portugal issued protections to help conserve the area in 2015. In 2025, at the United Nations Ocean Conference, Portugal announced that the area will be expanded to encompass 100,000 square kilometers (38,600 square miles).<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n
\"Elongate
The Elongate jewel squid is among the many marine animals spotted during Oceana\u2019s expeditions to Malta\u2019s waters.
\u00a9 Oceana\/Juan Carlos Calvin<\/figcaption><\/figure>\n\n\n\n
\"Seahorse\"
This seahorse dwells in Malta\u2019s waters and is less than 3 centimeters (just over one inch) tall. \u00a9 Oceana\/Carlos Minguell<\/figcaption><\/figure>\n<\/figure>\n\n\n\n
<\/div>\n\n\n\n

Mapping Malta’s marine life<\/h2>\n\n\n\n

In 2015 and 2016, Oceana sailed east to the waters surrounding Malta. Skilled scuba divers and
a remotely operated vehicle captured thousands of photos and more than 300 hours of footage<\/a> of life unfolding underwater. A small seahorse, less than 3 centimeters (just over one inch) long, was one of many species in the days-long underwater photoshoot. From these photos and footage, researchers could map out sandbanks, reefs, and 89 marine caves surrounding Malta.<\/a><\/p>\n\n\n\n

Oceana\u2019s scientists then drew up a list of the areas they deemed most in need of protection \u2014 from bamboo coral gardens, to areas home to sponges, fish, and animals like the coppery Elongate jewel squid. Following Oceana\u2019s recommendations, the government of Malta announced eight new or expanded marine protected areas in the Mediterranean in 2018. Today, 35% of Malta\u2019s waters are now protected.<\/p>\n\n\n\n

Oceana\u2019s new namesake<\/h2>\n\n\n
\n
\"Foraminifera
Though just 4-5 centimeters (1.5-2 inches) long, this organism, first discovered by Oceana, is quite large for a foraminifera. \u00a9 CSIC<\/figcaption><\/figure><\/div>\n\n\n
\n

During the Ranger\u2019s 2012 expedition near Palos Cape in the Spanish Mediterranean, Oceana\u2019s team came across what they thought was a carnivorous sponge. Until they took a closer look, that is. Detailed observation revealed that the mysterious organism had collected skeletal pieces of dead sponge on the seabed and connected them together with a \u201cprotein glue,\u201d similar to the kind sponges use. This was no carnivorous sponge, but a foraminifera \u2014 a single-cell organism. At about four to five centimeters (one and a half to two inches) long, it is the largest foraminifera species in the Mediterranean, and the first documented of its kind. The species now bears Oceana\u2019s name: Spiculosiphon oceana. \u201cThis strange species proves how little we know about our waters and the real danger of losing biodiversity before we even know these species exist,\u201d Aguilar says.<\/p>\n<\/div>\n\n\n\n

<\/div>\n\n\n\n

<\/p>\n\n\n

\n
\"Dolphin\"
On many Ranger<\/em> expeditions, dolphins are the crew\u2019s constant companions. \u00a9 Oceana\/Enrique Talledo<\/figcaption><\/figure><\/div>\n\n\n

A dolphin escort<\/h2>\n\n\n\n

The Ranger<\/em> is often joined by some familiar friends: dolphins. Despite their label as the \u201ccommon\u201d dolphin, these animals never cease to delight with their playful company. On an expedition in the waters off Southern Spain, Oceana Senior Marine Scientist Helena Alvarez recorded that a group of at least 100 dolphins were \u201cswimming peacefully and changing their course to appear alongside the Oceana Ranger.<\/em>\u201d The Ranger<\/em> has helped scientists better understand the places where dolphins breed and feed.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Deep-sea jewel<\/h2>\n\n\n
\n
\"Cabliers
A coral in Cabliers Bank, a cold-water reef discovered during a 2010 Oceana expedition in the Mediterranean Sea.
\u00a9 Oceana\/Carlos Minguell<\/figcaption><\/figure><\/div>\n\n\n
\n

A \u201chidden treasure\u201d deep in the Mediterranean Sea, the Cabliers Bank remained unknown until its discovery during a 2010 Oceana Ranger<\/em> expedition. Located in the nutrient-rich waters where the Mediterranean and Atlantic meet, the Cabliers Bank is a deep-sea coral mound estimated to be over 400,000 years old \u2014 and might be the only cold-water reef in the Mediterranean Sea that is still growing.<\/p>\n<\/div>\n\n\n\n

Because the Cabliers Bank lies in the waters of neighboring countries Morocco, Algeria, and Spain, protecting the area required extensive regional cooperation. Oceana has campaigned for the three countries to close these waters to fishing. At the United Nations Ocean Conference in June 2025, Spain announced that it is closing the Cabliers Bank to all bottom fishing<\/a>, marking an important step toward increased deep-sea conservation in the Mediterranean Sea.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Exposing bottom trawling<\/h2>\n\n\n
\n
\"Trawling
Trawling scars seen on a Ranger<\/em> expedition near Secos de los Olivos<\/figcaption><\/figure><\/div>\n\n\n

Just a couple miles from the Western Mediterranean\u2019s coral-covered seamounts are areas that have been stripped bare by a destructive form of commercial fishing known as \u201cbottom trawling,\u201d where heavy weighted nets bulldoze everything in their path. In this photo, visible trawl marks cut into a seabed near Seco de los Olivos, off the coast of Southern Spain.<\/p>\n\n\n\n

\u201cPart of our work involves spending long hours in places where there\u2019s nothing left \u2014 where bottom trawling has destroyed everything,\u201d says Aguilar.<\/p>\n\n\n\n

This scientific observation, boring as it may seem, is vital. By sampling the sediments and oxygen and pH levels of the water, scientists collect evidence that can help protect more ocean habitat from destruction. \u201cWe know that bottom trawling is impacting the seabed, but often we don\u2019t have the evidence to prove it,\u201d says Aguilar. \u201cNow, in part due to these efforts, more than half of European waters are protected from trawling.\u201d<\/p>\n\n\n\n

In recent years, both the EU and Member States are closing areas to the damaging activity. In 2022, the Spanish fishing administration issued a protective order officially prohibiting trawling on the top of the seamount in Seco de los Olivos.<\/p>\n\n\n\n

<\/div>\n\n\n\n

The depths of plastic<\/h2>\n\n\n
\n
\"Plastic
Oceana\u2019s divers regularly find plastic bags, discarded nets, and other waste during expeditions. \u00a9 Oceana\/Enrique Talledo<\/figcaption><\/figure><\/div>\n\n\n

The Mediterranean is not just abundant in fish. It is also brimming with plastic pollution and abandoned fishing nets. Oceana Senior Policy Advisor Agnes Lisik described \u201cseeing human impact everywhere\u201d on a Ranger<\/em> expedition, the waters cluttered with colorful plastic bags. The cameras surface what nobody sees, former Oceana Senior Scientist Silvia Garc\u00eda points out<\/a>: \u201cOn the one hand, extremely valuable information about the species and habitat present, but on the other, the image of a sea turned into a dump.\u201d<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/div>\n\n\n\n

Close to home<\/h2>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n

Over the two decades the Ranger<\/em> has docked in the Balearic Islands, Oceana has undertaken at least seven expeditions in the waters surrounding the islands, putting together a picture of life in the water\u2019s depths \u2014 from seagrass meadows and colorful corals to abundant grouper and striking nudibranchs. In 2019, after decades of campaigning, six expeditions, and hundreds of meetings with local and national leaders, Oceana won new protections for the Cabrera Archipelago Maritime-Terrestrial National Park, expanding the protected area to 10 times its original size. The park now includes the entire Cabrera Archipelago in the Balearic Islands.<\/p>\n\n\n\n

The story is not over, however. As bottom trawling destroys ocean habitat, even inside areas that are protected on paper, Oceana continues to campaign on behalf of the oceans.<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n
\"Scientists
Scientists aboard the Ranger<\/em> film a dolphin. \u00a9 Oceana\/Jes\u00fas Renedo<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

<\/p>\n\n\n\n

The future of the Oceana Ranger<\/h2>\n\n\n\n

Looking ahead, Oceana\u2019s scientists are eager to continue exploring the ocean on board the Ranger.<\/em> Through dives and data collection, they will keep pushing for protection, especially for kelp forests, ever-important allies in the fight against climate change.<\/p>\n\n\n\n

\u201cThe Ranger<\/em> has shown us time and again that when we shine a light on what\u2019s beneath the surface, we can inspire change above it,\u201d says Alvarez. \u201cFor over two decades, the Ranger<\/em> has helped us uncover the hidden beauty and value of the ocean\u2019s most important places. That evidence has allowed us to win protections \u2014 not just for marine life, but for the coastal communities that depend on it.\u201d<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Standing in the harbor of California\u2019s Marina del Rey on a cool day in January 2005, actor and Oceana Board Member Ted Danson smashed a bottle of champagne to celebrate Oceana\u2019s new \u201ceyes and ears in the oceans\u201d: a freshly-painted, double-masted ship christened the Oceana Ranger. Today, despite being nearly 40 years old, the boat\u2019s … Read more<\/a><\/p>\n","protected":false},"author":538,"featured_media":43125,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"location":[],"expedition":[240],"campaign":[197],"ppma_author":[352],"class_list":["post-43123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","expedition-the-ranger","campaign-marine-wildlife","infinite-scroll-item"],"acf":[],"yoast_head":"\nScience at Sea: 20 Years of the Oceana Ranger | Oceana<\/title>\n<meta name=\"description\" content=\"Discover unique glimpses into marine life from 20 years of scientific expeditions aboard the Oceana Ranger.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oceana.org\/blog\/science-at-sea-20-years-of-the-oceana-ranger\/\" \/>\n<meta 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