Eastern Mudsnail
Eastern Mudsnail
ilyanassa obsoleta
The Eastern Mudsnail is a small, ubiquitous marine gastropod that plays an incredibly vital role in coastal ecosystems. Found blanketing mudflats and estuaries, these highly social snails gather in dense herds to scavenge and feed, serving as nature's tiny clean-up crew. Their collective feeding action helps aerate the mud and recycle organic nutrients back into the ecosystem, supporting a wide range of marine life. Though they may seem simple, these resilient snails possess sophisticated chemical sensors that help them navigate their muddy habitats. They are also known for their complex relationship with parasites, acting as hosts to several species of flatworms that eventually infect shorebirds, making them a fascinating subject for ecological study.
生息地: Found in sheltered intertidal mudflats, estuaries, and salt marshes, often where organic debris is abundant.
外見
Measuring up to 3 centimeters in length, the Eastern Mudsnail has a dark brown to nearly black, conical shell adorned with fine spiral lines. The tip or apex of the shell is frequently eroded, revealing a contrasting chalky white or gray underlying layer. When active, the snail extends a soft, grayish-mottled foot and two long, slender tentacles used to probe its surroundings.
界Animalia門Mollusca綱Gastropoda目Neogastropoda科Nassariidae属Ilyanassa
カテゴリ
Invertebrateレア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
Eastern mudsnails can gather in massive densities, sometimes exceeding 10,000 snails in a single square meter of mud.
Their shells are frequently colonized by other organisms, such as tiny sea anemones or algae, turning them into walking mini-ecosystems.
When the tide rises, they often burrow completely into the mud, reappearing in massive numbers as soon as the water recedes.
特殊能力
能力
Chemical Alarm System
When injured, the snail releases a chemical alarm pheromone that warns nearby mudsnails, triggering them to burrow rapidly into the sediment for safety.
能力
Mucus Trail Tracking
It uses specialized chemoreceptors to detect and follow the slimy trails left by other mudsnails, allowing them to gather in large groups for feeding or mating.
能力
Erosion Tolerance
Despite living in acidic, abrasive mud that wears away the outer protective layer of its shell, the snail maintains a thick, durable inner shell structure.
サイズと詳細
- 長さ
- 1-3 cm
- 体重
- 0.001-0.005 kg
- 寿命
- 3-10 年
- 一度の産卵数
- 20-200
- 抱卵期間
- 7-15 日
食性と食事
The Eastern Mudsnail is primarily a scavenger and detritivore, vacuuming up benthic microalgae, organic debris, and decaying animal matter.
年齢による違い: Juveniles rely heavily on microscopic algae coating the mud, while mature adults consume more diverse animal detritus and decaying organic material.
主な食物
- Benthic microalgae
- Organic detritus
- Carrion
- Bacterial biofilms
採餌方法
- Foraging
生態系とのつながり
eaten by
Blue Crab
Callinectes sapidus
Preys heavily on mudsnails, cracking open their shells.
parasite
Trematode Flatworm
Gynaecotyla adunca
Uses the mudsnail as an intermediate host in its complex life cycle.
特徴
このオブジェクトにはまだ特徴バッジが割り当てられていません。
別名
まだ別名はありません。
コレクション
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安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Eastern Mudsnailを見分けるには？
Eastern Mudsnailを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Eastern Mudsnailの長さは何ですか？
1-3 cm
Eastern Mudsnailの体重は何ですか？
0.001-0.005 kg
Eastern Mudsnailの寿命は何ですか？
3-10 年
Eastern Mudsnailは何を食べますか？
The Eastern Mudsnail is primarily a scavenger and detritivore, vacuuming up benthic microalgae, organic debris, and decaying animal matter.
Eastern Mudsnailは通常どこに生息していますか？
Found in sheltered intertidal mudflats, estuaries, and salt marshes, often where organic debris is abundant.
Eastern Mudsnailはどのように狩りをしますか？
Foraging
Eastern Mudsnailの一度の産卵数は何ですか？
20-200
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