Purple Pigtoe
Purple Pigtoe
pustulosa succissa
The Purple Pigtoe is a remarkable freshwater mussel native to the pristine rivers and streams of the southeastern United States. Like other unionid mussels, it plays a vital role as an environmental biofilter, actively cleaning the water in its river ecosystems. These unassuming bivalves spend most of their long lives partially buried in sandy or gravelly riverbeds, quietly performing the essential task of maintaining aquatic health. Their fascinating reproductive cycle relies on a clever parasitic stage where microscopic larvae hitch a ride on the gills of specific host fish. This intricate connection makes them highly sensitive indicators of overall river health; finding a healthy population of Purple Pigtoe mussels is a strong sign of a clean, stable, and ecologically diverse river system.
生息地: Found in medium to large rivers with moderate currents, typically resting in substrates of sand, gravel, or muddy sand.
外見
This medium-sized freshwater mussel features a solid, somewhat rounded or subquadrate shell, typically reaching about 5 to 9 centimeters in length. The shell's exterior is yellowish-brown to dark brown, often adorned with characteristic pustules or bumps on the surface. Its most defining and beautiful feature is its striking nacre—the inner lining of the shell—which displays a deep purple, lavender, or iridescent violet hue, giving the species its evocative common name.
界Animalia門Mollusca綱Bivalvia目Unionida科Unionidae属Pustulosa
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
The interior of the Purple Pigtoe's shell has a stunning, deep purple iridescent shine, which historically made it highly sought after for the pearl button industry.
These freshwater mussels can live for up to half a century, recording environmental and water quality changes within the growth rings of their shells.
To successfully reproduce, their microscopic larvae must attach to the gills of specific host fish to transform into juvenile mussels without harming the fish.
特殊能力
能力
Benthic Anchoring
Uses a powerful, muscular foot to burrow deep into the riverbed, anchoring itself securely against swift currents and hiding from predators.
能力
Biological Filtration
Possesses highly efficient siphon filtration, allowing it to process and clean several liters of river water every day.
能力
Fish Hitchhiking
Produces specialized larval glochidia that temporarily cling to host fish gills to disperse upstream before settling to the riverbed.
サイズと詳細
- 長さ
- 5-9 cm
- 体重
- 0.05-0.25 kg
- 寿命
- 20-50 年
- 一度の産卵数
- 10000-90000
- 抱卵期間
- 30-90 日
食性と食事
Filters organic matter, bacteria, and microscopic algae directly from the water column through its siphons.
年齢による違い: Larvae absorb nutrients from host fish tissue, while adults filter feed on organic particles.
主な食物
- Phytoplankton
- Microscopic bacteria
- Organic detritus
- Unicellular algae
採餌方法
- Filtering
生態系とのつながり
parasite
Blackbanded Darter
Percina nigrofasciata
Serves as a host fish for the mussel's larval stage (glochidia), enabling dispersal upstream.
eaten by
Muskrat
Ondatra zibethicus
Preys upon the adult mussels by crushing their shells to eat the soft inner body.
hunts
Green Algae
Chlamydomonas reinhardtii
Primary microscopic food source filtered from the water column.
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
Purple Pigtoeを見分けるには？
Purple Pigtoe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。
Purple Pigtoeの長さは何ですか？
5-9 cm
Purple Pigtoeの体重は何ですか？
0.05-0.25 kg
Purple Pigtoeの寿命は何ですか？
20-50 年
Purple Pigtoeは何を食べますか？
Filters organic matter, bacteria, and microscopic algae directly from the water column through its siphons.
Purple Pigtoeは通常どこに生息していますか？
Found in medium to large rivers with moderate currents, typically resting in substrates of sand, gravel, or muddy sand.
Purple Pigtoeはどのように狩りをしますか？
Filtering
Purple Pigtoeの一度の産卵数は何ですか？
10000-90000
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