Pacific Acorn Barnacle

balanus glandula

The Pacific Acorn Barnacle is a tiny animal that sticks to rocks and shells in the ocean. They have a hard shell that looks like a little acorn, and they open up to eat tiny food from the water!

生息地: Rocky shores and tidal pools along the Pacific coast.

外見

The Pacific Acorn Barnacle is a small, whitish-grey cone with a rough, often ridged surface. Its top has a diamond-shaped opening made of four movable plates. It looks like a tiny volcano glued to rocks, distinct from smooth, flat limpets.

AnimaliaArthropodaMaxillopodaSessiliaBalanidaeBalanus
Pacific Acorn Barnacle
social trait badgefilter_feeder trait badgecoastal trait badgeaquatic trait badge
Pacific Acorn Barnacle

カテゴリ

Invertebrate

レア度

Common

危険度

0/5 · 危険なし

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おもしろい事実

Barnacles are actually crustaceans, which means they are related to crabs and lobsters!

Some barnacles can live for many years, often ten times longer than a pet hamster!

They spend their whole adult life upside down, sticking their head to a rock!

Wow! Baby barnacles swim like tiny shrimp before finding a spot to glue down!

特殊能力

能力

Super Glue Anchor

Pacific Acorn Barnacle can make an incredibly strong natural cement because of specialized glands that helps them stick to rocks forever.

能力

Feathery Food Sweeper

Pacific Acorn Barnacle has feathery 'cirri' legs that helps them sweep tiny food particles from the ocean water.

能力

Shell Fortress

Pacific Acorn Barnacle can close its shell plates because of strong muscles that helps them stay safe and moist during low tide.

能力

Double Trouble

Pacific Acorn Barnacle has both male and female parts that helps them reproduce even when neighbors are scarce.

サイズと詳細

長さ
1.5 cm
体重
0.5 g
寿命
10 年
Appendage Count
12
コロニーの大きさ
hundreds_to_thousands
Shell Hardness
3 Mohs

食性と食事

They sweep tiny ocean critters and plant bits from the water using their feathery legs.

主な食物

  • plankton
  • algae spores
  • detritus
  • larval invertebrates

採餌方法

  • Filter Feeding

生態系とのつながり

eaten by

Ochre Sea Star

Pisaster ochraceus

Pries open shells to eat the soft body.

eaten by

Emarginate Dogwinkle

Nucella emarginata

Drills a tiny hole through the shell.

eaten by

Tidepool Sculpin

Oligocottus maculosus

Nips at the feathery feeding legs.

特徴

別名

Common BarnacleRock Barnacle

コレクション

安全性

危険度

0/5 · 危険なし

まだ特別な安全上の注意はありません。

よくある質問

Pacific Acorn Barnacleの長さは何ですか?

1.5 cm

Pacific Acorn Barnacleの体重は何ですか?

0.5 g

Pacific Acorn Barnacleの寿命は何ですか?

10 年

Pacific Acorn Barnacleは何を食べますか?

They sweep tiny ocean critters and plant bits from the water using their feathery legs.

Pacific Acorn Barnacleは通常どこに生息していますか?

Rocky shores and tidal pools along the Pacific coast.

Pacific Acorn Barnacleはどのように狩りをしますか?

Filter Feeding

Pacific Acorn Barnacleのappendage Countは何ですか?

12

Pacific Acorn Barnacleのコロニーの大きさは何ですか?

hundreds_to_thousands

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