Chronic tributyltin toxicity experiments with the chesapeake bay copepod,Acartia tonsa

Peritrich ciliates are commonly found as epibionts, colonizing living organisms, or attached to non-living substrates in freshwater, estuarine and marine environments. Several species of peritrich epibionts are obligate, which means that they are able to only colonize other organisms, while others are facultative attaching to living or non-living substrates. The peritrich Zoothamnium intermedium is commonly found as epibiont on the copepod species Acartia tonsa and Eurytemora affinis in Chesapeake Bay, USA. Previous studies demonstrated that Z. intermedium is not able to attach to non-living substrates in the laboratory; with free-swimming stages (telotrochs) dying when living substrates are not available for colonization. The present study investigated the ability of Z. intermdium to colonize artificial substrates in the field. Observations were carried out while the peritrich ciliate was colonizing copepods in Rhode River, a tributary of Chesapeake Bay. Results demonstrated that four species of Zoothamnium were recovered from artificial substrates, but none of them was Z. intermedium. At the same time, Z. intermedium was colonizing adults and copepodites of E. affinis and A. tonsa during the whole study period. These results, in addition to laboratory observations, suggest that Z. intermedium is an obligate epibiont.

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Long-term decline in the calanoid copepod Acartia tonsa in central Chesapeake Bay, USA: An indirect effect of eutrophication?

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2012.02.019 ◽

2012 ◽

Vol 101 ◽

pp. 76-85 ◽

Cited By ~ 21

Author(s):

David G. Kimmel ◽

Walter R. Boynton ◽

Michael R. Roman

Keyword(s):

Chesapeake Bay ◽

Indirect Effect ◽

Calanoid Copepod ◽

Acartia Tonsa

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Toxicity of trace metals to Acartia tonsa in the Elizabeth River and southern Chesapeake Bay

Estuarine Coastal and Shelf Science ◽

10.1016/0272-7714(90)90048-v ◽

1990 ◽

Vol 30 (3) ◽

pp. 207-221 ◽

Cited By ~ 31

Author(s):

W.G. Sunda ◽

P.A. Tester ◽

S.A. Huntsman

Keyword(s):

Trace Metals ◽

Chesapeake Bay ◽

Acartia Tonsa ◽

Elizabeth River

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CHRONIC TRIBUTYLTIN TOXICITY EXPERIMENTS WITH THE CHESAPEAKE BAY COPEPOD, ACARTIA TONSA

Environmental Toxicology and Chemistry ◽

10.1897/1552-8618(1990)9[359:cttewt]2.0.co;2 ◽

1990 ◽

Vol 9 (3) ◽

pp. 359 ◽

Cited By ~ 5

Author(s):

Steven J. Bushong ◽

Michael C. Ziegenfuss ◽

Michael A. Unger ◽

Lenwood W. Hall

Keyword(s):

Chesapeake Bay ◽

Acartia Tonsa

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Between ‘Savage Man’ and ‘Most Faithful Englishman’ Manteo and the Early Anglo-Indian Exchange, 1584–1590

Itinerario ◽

10.1017/s0165115300044545 ◽

2000 ◽

Vol 24 (2) ◽

pp. 146-169 ◽

Cited By ~ 1

Author(s):

Michael Leroy Oberg

Keyword(s):

North Carolina ◽

Chesapeake Bay ◽

One Year ◽

Anglo Indian

In August of 1587 Manteo, an Indian from Croatoan Island, joined a group of English settlers in an attack on the native village of Dasemunkepeuc, located on the coast of present-day North Carolina. These colonists, amongst whom Manteo lived, had landed on Roanoke Island less than a month before, dumped there by a pilot more interested in hunting Spanish prize ships than in carrying colonists to their intended place of settlement along the Chesapeake Bay. The colonists had hoped to re-establish peaceful relations with area natives, and for that reason they relied upon Manteo to act as an interpreter, broker, and intercultural diplomat. The legacy of Anglo-Indian bitterness remaining from Ralph Lane's military settlement, however, which had hastily abandoned the island one year before, was too great for Manteo to overcome. The settlers found themselves that summer in the midst of hostile Indians.

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