Amphibola crenata

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  Amphibola crenata

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  Amphibola crenata

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  Amphibola crenata (underside)

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  Amphibola crenata

Amphibola crenata

Amphibola crenata, commonly known as the New Zealand mud snail, is a species of gastropod in the family Amphibolidae. This species is endemic to New Zealand and is notable for its unique habitat preferences and reproductive strategies.

Description

Amphibola crenata is a small to medium-sized snail, with a shell that can reach up to 30 mm in length. The shell is typically dark brown to black, with a distinctive crenulated or wavy pattern along the shell's surface. The aperture of the shell is large and oval, and the operculum is thin and flexible.

Habitat

This species is primarily found in intertidal mudflats and estuarine environments. Amphibola crenata is well adapted to life in these habitats, where it can often be seen burrowing into the mud or crawling on the surface during low tide. The snail is capable of surviving in both marine and brackish water conditions, making it a versatile inhabitant of coastal ecosystems.

Behavior

Amphibola crenata is a detritivore, feeding on organic material found in the mud. It plays a crucial role in the ecosystem by recycling nutrients and contributing to the breakdown of organic matter. The snail is also known for its ability to withstand periods of desiccation, which is essential for survival in its fluctuating intertidal environment.

Reproduction

The reproductive strategy of Amphibola crenata is unique among gastropods. It is a protandric hermaphrodite, meaning individuals initially mature as males and later transform into females. This strategy allows for flexibility in reproduction and maximizes reproductive success in varying environmental conditions. The species lays egg capsules in the mud, which hatch into free-swimming larvae before settling and developing into adult snails.

Conservation

While Amphibola crenata is not currently considered threatened, its habitat is vulnerable to human activities such as coastal development, pollution, and habitat destruction. Conservation efforts focus on protecting the intertidal zones and estuarine environments that are crucial for the survival of this species.

Related pages

• Gastropod
• Intertidal zone
• Estuary
• New Zealand