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- Veined rapa whelk -- Chesapeake Bay (Md. and Va.) -- Study and teaching; Northern quahog -- Predators of -- Chesapeake Bay (Md. and Va.) -- Study and teaching; Predation (Biology); Mercenaria; Rapana (1)
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Articles 1 - 2 of 2
Full-Text Articles in Ecology and Evolutionary Biology
Salinity Tolerance Of Larval Rapana Venosa: Implications For Dispersal And Establishment Of An Invading Predatory Gastropod On The North American Atlantic Coast, Roger L. Mann, Juliana M. Harding
Salinity Tolerance Of Larval Rapana Venosa: Implications For Dispersal And Establishment Of An Invading Predatory Gastropod On The North American Atlantic Coast, Roger L. Mann, Juliana M. Harding
VIMS Articles
The lack of quantitative data on the environmental tolerances of the early life-history stages of invading species hinders estimation of their dispersal rates and establishment ranges in receptor environments. We present data on salinity tolerance for all stages of the ontogenetic larval development of the invading predatory gastropod Rapana venosa, and we propose that salinity tolerance is the dominant response controlling the potential dispersal ( = invasion) range of the species into the estuaries of the Atlantic coast of the United States from the current invading epicenter in the southern Chesapeake Bay. All larval stages exhibit 48-h tolerance to salinities …
Predators In Action : Rapa Whelks Vs. Hard Clams, Juliana M. Harding, Vicki P. Clark, Roger L. Mann
Predators In Action : Rapa Whelks Vs. Hard Clams, Juliana M. Harding, Vicki P. Clark, Roger L. Mann
Reports
This booklet gives information and data-based exercises describing ecological and economic connections between introduced rapa whelk Rapana venosa predators and local hard clams Mercenaria mercenaria in the lower Chesapeake Bay. The information is focused to answer the question: "How many hard clams could a rapa whelk eat in one year?