IBOV 177,418.78 ▲ 1.00% IPSA 11,315.26 ▼ 1.14% IPC MEX 65,048.39 ▼ 0.67% MERVAL 3,033,848 ▲ 1.83% COLCAP 2,425.08 ▼ 1.33% BVL PERÚ 59,928.30 ▼ 0.80% USD/BRL5.18▼ 0.21% USD/MXN17.00▼ 0.21% USD/CLP933.85▲ 0.25% USD/COP3,219▲ 0.60% USD/PEN3.36▲ 0.23% USD/ARS1,509▼ 0.28% USD/UYU40.29▲ 0.05% USD/PYG5,892▼ 0.13% USD/BOB11.84▲ 0.51% USD/DOP58.50▼ 0.19% USD/CRC446.47▼ 0.04% USD/GTQ7.62▼ 0.02% USD/HNL26.84— 0.00% USD/NIO36.62— 0.00% USD/VES796.33▲ 0.29% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD 157.28 — 0.00% USD/TTD6.69▼ 0.37% EUR/BRL6.02▼ 0.20% BRENT 88.88 ▼ 0.03% WTI 83.11 ▼ 0.11% IRON ORE 161.91 — — COPPER 6.61 ▲ 0.03% GOLD 4,461 ▲ 1.78% SILVER 65.59 ▲ 1.26% SOY 1,184 ▲ 3.20% CORN 480.50 ▲ 10.02% WHEAT 655.00 ▲ 3.93% COFFEE 317.25 ▼ 5.51% SUGAR 16.43 ▼ 1.79% ORANGE JUICE 138.55 ▼ 0.47% COTTON 85.03 ▲ 2.33% COCOA 5,719 ▲ 3.18% BEEF 223.60 ▼ 3.93% CATTLE 339.10 ▼ 3.16% LITHIUM 75.20 ▲ 1.47% PETR4 41.64 ▼ 0.05% VALE3 72.97 ▲ 0.83% ITUB4 38.60 ▼ 1.03% BBDC4 16.85 ▲ 0.36% ABEV3 14.89 ▼ 0.80% BBAS3 19.37 ▲ 0.47% B3SA3 14.26 ▼ 0.21% WEGE3 47.59 ▲ 0.49% PRIO3 59.14 ▼ 0.19% SUZB3 41.33 ▲ 2.35% RENT3 34.68 ▼ 0.09% AZZA3 15.89 ▼ 2.63% CSAN3 3.22 ▼ 1.83% RAIZ4 0.25 — 0.00% PCAR3 2.75 ▼ 0.36% GMAT3 3.65 ▼ 1.08% PSSA3 48.13 ▼ 0.54% CVCB3 1.33 ▼ 2.92% POSI3 3.36 ▲ 2.44% SLCE3 13.34 ▲ 0.30% NATU3 8.14 ▼ 0.73% IBOV 177,418.78 ▲ 1.00% IPSA 11,315.26 ▼ 1.14% IPC MEX 65,048.39 ▼ 0.67% MERVAL 3,033,848 ▲ 1.83% COLCAP 2,425.08 ▼ 1.33% BVL PERÚ 59,928.30 ▼ 0.80% USD/BRL 5.16 ▲ 0.01% USD/MXN 17.06 ▼ 0.24% USD/CLP 913.98 ▲ 0.04% USD/COP 3,140 ▲ 0.03% USD/PEN 3.36 ▼ 0.66% USD/ARS 1,493 ▲ 0.10% USD/UYU 40.27 ▲ 1.24% USD/PYG 5,939 ▲ 1.68% USD/BOB 11.64 ▼ 0.76% USD/DOP 58.34 ▲ 1.25% USD/CRC 445.92 ▲ 0.89% USD/GTQ 7.62 ▲ 2.21% USD/HNL 26.79 ▲ 1.57% USD/NIO 36.62 ▲ 0.69% USD/VES 762.44 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.28 — 0.00% USD/TTD 6.70 ▲ 0.61% EUR/BRL 5.95 ▲ 1.01% BRENT 88.88 ▼ 0.03% WTI 83.11 ▼ 0.11% IRON ORE 161.91 — — COPPER 6.61 ▲ 0.03% GOLD 4,461 ▲ 1.78% SILVER 65.59 ▲ 1.26% SOY 1,184 ▲ 3.20% CORN 480.50 ▲ 10.02% WHEAT 655.00 ▲ 3.93% COFFEE 317.25 ▼ 5.51% SUGAR 16.43 ▼ 1.79% ORANGE JUICE 138.55 ▼ 0.47% COTTON 85.03 ▲ 2.33% COCOA 5,719 ▲ 3.18% BEEF 223.60 ▼ 3.93% CATTLE 339.10 ▼ 3.16% LITHIUM 75.20 ▲ 1.47% PETR4 41.64 ▼ 0.05% VALE3 72.97 ▲ 0.83% ITUB4 38.60 ▼ 1.03% BBDC4 16.85 ▲ 0.36% ABEV3 14.89 ▼ 0.80% BBAS3 19.37 ▲ 0.47% B3SA3 14.26 ▼ 0.21% WEGE3 47.59 ▲ 0.49% PRIO3 59.14 ▼ 0.19% SUZB3 41.33 ▲ 2.35% RENT3 34.68 ▼ 0.09% AZZA3 15.89 ▼ 2.63% CSAN3 3.22 ▼ 1.83% RAIZ4 0.25 — 0.00% PCAR3 2.75 ▼ 0.36% GMAT3 3.65 ▼ 1.08% PSSA3 48.13 ▼ 0.54% CVCB3 1.33 ▼ 2.92% POSI3 3.36 ▲ 2.44% SLCE3 13.34 ▲ 0.30% NATU3 8.14 ▼ 0.73%
since 2009
Tuesday, September 1, 2026

Local Politics Politics - Brazil

Mass Algae Formation Found off Rio: Daily

By · February 1, 2014 · 2 min read

Daily Brief

The morning intel from across Latin America. Free.

By subscribing you agree to our privacy policy. We never share your email.

By William Jones, Contributing Reporter

RIO DE JANEIRO, BRAZIL – Images from the U.S.’ Space Agency NASA have identified an 800km stretch of algae lurking off the coast of Rio de Janeiro and São Paulo. The algae stretches as far as the southern city of Santa Catarina and, as a result, has left oceanographers and weather experts fearing that heavy storms will arrive on Brazil’s coast at the end of summer or in early autumn.

Mass Algae, Rio de Janeiro, Brazil News
The dark mass indicates the presence of micro-organisms on the Brazilian coast, image by NASA.
One-stop reference
Company Intelligence
Every listed company in Latin America — financials, ownership and structure for 1,450+ companies across 26 exchanges, in one place.
Browse the directory →
RT
Ask Rio Times
This story and the bigger picture.
Open the full Ask Rio Times →

The picture, obtained by Brazilian national newspaper O Globo and captured by NASA’s aqua satellite from space, show a result of the decomposition of algae ingested by other microorganisms which has been formed by the recent heat wave. Experts consulted by NASA identified the species as Myrionecta Rubra and say that it is not toxic to other marine life or to humans but represents a lack of equilibrium in the area’s ecosystem.

Oceanographer, Heitor Augusto Tozzi, said that the sheer size of the ocean growth is not just dangerous in terms of the Atlantic region’s ecosystem but a cause for concern is the possibility of “heavy storms” due to the imbalanced and particularly hot weather the state has been experiencing lately.

“What’s striking now is the dimension of the phenomenon. That is not just a sign of the strength of that body heat, but it can also represent imbalance in marine ecosystems,” he told O Globo. “It was active throughout the month of January and is so intense that it can only be broken by a cold front with real power. This means the possibility of heavy storms,” he said.

Professor of Coastal Engineering at UFRJ (Federal Univeristy of Rio de Janeiro), Paulo Cesar Rosman, believes that the formation of huge strain of algae is the result of a series of abnormal weather events such as irregular tides and lack of winds.

“Algae need nutrients to live and heat,” he said. “In normal situations, substances that nourish them are dispersed by wind, rain and sea currents. If they are weak, these microorganisms are stationed on the coast.”

Read more (in Portuguese).

* The Rio Times Daily Updates feature is offered to help keep you up-to-date with important news as it happens.

Read More from The Rio Times

The Rio Times · Power Map
See who really holds power in Latin America
Click to open the Power Map

Rotate for Best Experience

This report is optimized for landscape viewing. Rotate your phone for the full experience.