Pest

Four-spot megrim

Lepidorhombus boscii

Description

How to identify

The four-spot megrim belongs to the family Scophthalmidae within the order Pleuronectiformes. It is a benthic species adapted for life on the sea floor.

The name comes from the four distinct dark spots found on the ocular side of its body, which serves as a key identifying feature for researchers.

The skin is covered in cycloid scales that are prone to detaching, a feature common in several deep-water flatfish species.

Its large mouth and sharp teeth indicate that it is a predator, feeding primarily on small organisms inhabiting the sandy or muddy bottom.

The asymmetrical body structure is highly specialized, with the left side facing upward, allowing the fish to remain hidden from both prey and predators.

When it appears

Spawning typically occurs during the spring, which ensures that larvae can benefit from the seasonal plankton blooms in the water column.

During their early development, the juveniles are pelagic until they undergo a significant metamorphosis to adopt a benthic lifestyle.

Seasonal migrations are driven by water temperature fluctuations and the availability of prey species, which shift throughout the year.

Adult populations often congregate in deeper waters during the colder months, where the thermal conditions remain more constant.

The life cycle is closely linked to the productivity of the continental shelf, making them an important component of the local marine ecosystem.

Biology

Taxonomy

Latin name
Lepidorhombus boscii
Family
Scophtalmidae
EPPO code
LEIDBO
Community

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