Alabama Orb
Alabama Orb
pustulosa kieneriana
The Alabama Orb (Pustulosa kieneriana) is a fascinating and ecologically vital species of freshwater mussel found primarily within the Mobile River basin in the southeastern United States. Belonging to the family Unionidae, this unassuming bivalve plays a monumental role in maintaining the health of its aquatic ecosystem. By continuously drawing in and expelling water, the Alabama Orb acts as a living biological filter, removing harmful particulate matter, algae, and excess nutrients from rivers and streams. This filtering process clarifies the water, benefiting a myriad of other aquatic organisms. Beyond their ecological utility, these mussels have an intricate and fascinating life cycle that relies heavily on local fish populations. The Alabama Orb represents the incredible, hidden biodiversity of North American freshwater systems, reminding us of the delicate balance that sustains underwater habitats.
生息地: Found partially buried in the sand or gravel substrates of clear, flowing freshwater rivers, streams, and shallow shoals.
外見
The Alabama Orb is easily recognized by its robust, thick, and distinctly circular or spherical shell, which gives the species its common name. The outer shell, or periostracum, ranges in color from yellowish-brown in younger individuals to a darker chestnut or blackish-brown in mature adults. True to its genus name, the shell's surface is often adorned with scattered, small bumps or 'pustules' along the posterior ridge, though the extent of this texturing can vary. Inside the bivalve, the nacre (mother-of-pearl) is smooth and typically brilliant white or subtly iridescent, providing a stark contrast to the rough exterior. Adults generally measure between 3 and 6 centimeters in length, making them a moderately sized, easily concealed riverbed inhabitant.
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
スナップ
最初にスナップしよう！
おもしろい事実
A single adult Alabama Orb can filter and clean up to a dozen gallons of river water in a single day.
Mussels like the Alabama Orb grow seasonal rings on their shells, similar to trees, which scientists use to determine their exact age.
Their microscopic larvae possess tiny, trap-jaw-like shells used to clamp onto fish gills without causing serious harm to the host.
特殊能力
能力
Biological Water Filtration
Uses specialized internal gills to continuously pump and filter microscopic particles, actively purifying its surrounding aquatic environment.
能力
Parasitic Larval Hitchhiking
Releases microscopic larvae called glochidia that temporarily clamp onto the gills of specific host fish to complete their development and disperse.
能力
Muscular Benthic Anchoring
Employs a strong, fleshy appendage known as a foot to dig into gravelly substrates and anchor itself securely against turbulent river currents.
サイズと詳細
- 長さ
- 3-6 cm
- 体重
- 0.02-0.08 kg
- 寿命
- 15-40 年
- 一度の産卵数
- 20000-80000
- 抱卵期間
- 14-28 日
食性と食事
As a benthic filter feeder, it siphons a mixture of microscopic plant and animal matter from the water column.
年齢による違い: Larval glochidia absorb nutrients directly from the tissue of a host fish before maturing into free-living, filter-feeding adults.
主な食物
- Phytoplankton
- Zooplankton
- Suspended organic detritus
- Bacteria
採餌方法
- Filtering
生態系とのつながり
host
Channel Catfish
Ictalurus punctatus
Acts as an essential temporary host for the mussel's parasitic glochidia larvae.
eaten by
Muskrat
Ondatra zibethicus
Preys heavily on freshwater mussels by pulling them from the riverbed and cracking their shells.
eats
Green Algae
Chlamydomonas reinhardtii
Consumed as a primary food source by the filter-feeding mussel.
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
テーマが追加されると、このオブジェクトのコレクションがここに表示されます。
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
Alabama Orbを見分けるには？
Alabama Orb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。
Alabama Orbの長さは何ですか？
3-6 cm
Alabama Orbの体重は何ですか？
0.02-0.08 kg
Alabama Orbの寿命は何ですか？
15-40 年
Alabama Orbは何を食べますか？
As a benthic filter feeder, it siphons a mixture of microscopic plant and animal matter from the water column.
Alabama Orbは通常どこに生息していますか？
Found partially buried in the sand or gravel substrates of clear, flowing freshwater rivers, streams, and shallow shoals.
Alabama Orbはどのように狩りをしますか？
Filtering
Alabama Orbの一度の産卵数は何ですか？
20000-80000
スナップマップ
ズームインしてクラスターを分割し、このオブジェクトが撮影された場所を探索しましょう。
マップを読み込み中…
最近のスナップ
新しい観察が追加されると、ここに最近のスナップが表示されます。
観察場所
公園9 件の観察12 種
Alabama, US
Centreville Historic District
ここで見られるかも Alabama Orb, Three-Horn Wartyback と Southern Pocketbook.
ガイドを見る →
公園30 件の観察12 種
Alabama, US
Icehouse Historic District
ここで見られるかも サルオガセモドキ, イエコモリヤモリ と グリーンアノール.
ガイドを見る →
公園30 件の観察12 種
Alabama, US
Water Avenue Historic District
ここで見られるかも サルオガセモドキ, メイプルリーフガイ と イエコモリヤモリ.
ガイドを見る →
