Pest

Spiny dogfish

Squalus acanthias

Description

How to identify

The scientific name Squalus acanthias refers to the spiny dogfish, a species of shark in the family Squalidae, within the order Squaliformes. It is a marine predator found in temperate oceans worldwide.

This organism is an exclusively aquatic animal. Its biological cycle, habitat, and dietary requirements are strictly confined to marine environments, meaning it has no interaction with agricultural ecosystems.

In agronomy, the term "katran" is occasionally used to describe a vegetable crop, which likely causes confusion. However, the specific Latin name provided points solely to the shark species.

As a fish, the spiny dogfish does not possess the physiological traits required to interact with terrestrial plants or soil-borne pathogens. It is a vertebrate fish that feeds on other marine organisms.

It is crucial to distinguish between homonymous common names. While "katran" might refer to a plant in some local traditions, Squalus acanthias remains the biological classification for a marine shark.

What it damages

The spiny dogfish causes no damage to crops. It is impossible for this species to act as a pest, as it does not live in or feed upon any form of terrestrial vegetation.

Farmers encountering plant damage should look for standard entomological pests, such as flea beetles or cabbage root flies, which are common threats to crops often confused with the name "katran".

There is absolutely no need for protective measures, pesticides, or biological controls against this species in any agricultural setting.

Identifying this shark as a plant pest is a scientific error. No research, field data, or agronomic reports support the existence of damage caused by this aquatic species to agricultural crops.

Therefore, any references linking Squalus acanthias to agricultural pest management should be considered inaccurate and should be disregarded in professional agronomic practice.

Biology

Taxonomy

Latin name
Squalus acanthias
Family
Squalidae
EPPO code
SQALAC
Community

Discussion

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