Missions declares native fish a Natural Monument: a key step for species conservation

The **Legislature of Misiones** approved a law declaring the native fish **Gymnogeophagus che**, popularly known as **”chanchita” or “juanita”**, as a **Provincial Natural Monument and of Public Interest**.

The measure aims to ensure its **preservation, reproduction, and protection** against environmental threats, consolidating the province’s commitment to the **conservation of native species**.

## A symbol of Misiones’ biodiversity
The “chanchita” was discovered in 1986 and inhabits the **Urugua-í stream**.

This freshwater fish, belonging to the family of **South American cichlids**, was identified in 1986 and is found in aquatic ecosystems of the region. It lives in **pairs or groups**, near the bottom, and feeds on **invertebrates, larvae, and small fish**, showing an **omnivorous diet with a carnivorous tendency**.

Its behavior includes **excavating the sandy substrate**, contributing to the **ecological dynamics** of its habitat. It is a **calm and peaceful species**, with a marked **adaptation to the river environment**.

## Physical characteristics of Gymnogeophagus che
A discreet fish but **vital for the balance** of Misiones’ streams.
– **Coloration**: Light brown to olive-yellowish, with **dark vertical bars** and a **distinctive black spot** on the flank.
– **Distribution**: Endemic to **South America**, confirmed presence in **Misiones**.
– **Behavior**: Bottom excavator, transforms the habitat, and lives in groups.
– **Feeding**: Omnivorous, with a preference for **mollusks, larvae, and aquatic insects**.

![Native Fish](https://storage.googleapis.com/media-cloud-na/2025/09/pez-autoctono.webp)

## Legal tools for the effective protection of this native fish
**The law grants powers to the Ministry of Ecology to safeguard the species.**

Deputy **Rolando Roa**, project informant member, highlighted that the regulation allows the **provincial government** to implement concrete actions to protect Gymnogeophagus che in its **natural habitat**, especially in the **Urugua-í stream area**.

The **Ministry of Ecology** will be responsible for implementing the safeguard measures.

## Science, territory, and environmental commitment
**Misiones strengthens its ecological agenda in the face of national cuts.**

During the legislative debate, the contrast between **provincial support for science** and **national cuts** was emphasized.

Roa mentioned the value of initiatives such as those of **CONICET**, reaffirming that Misiones opts for **its own resources to care for nature**, recognizing the work of **local scientific teams**.

## Conservation with local identity
The “chanchita” as a symbol of **Misiones’ fauna and environmental education**.

The declaration as a Natural Monument not only protects a vulnerable species but also promotes its **cultural, educational, and scientific value**.

The “chanchita” becomes a symbol of **regional biodiversity**, ideal for campaigns of **community awareness**, **environmental education**, and **responsible tourism**.

*Cover photo: Pablo Burchardt/@biofoto.fotografia*

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