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The Effects Of Female Size On Fecundity In A Large Marine Gastropod Rapana Venosa (Muricidae), Juliana M. Harding, Roger L. Mann, Catherine W. Kilduff
The Effects Of Female Size On Fecundity In A Large Marine Gastropod Rapana Venosa (Muricidae), Juliana M. Harding, Roger L. Mann, Catherine W. Kilduff
VIMS Articles
The life history strategy of the veined rapa whelk Rapana venosa, a temperate marine gastropod, includes generation times of 1 y, individual longevity of > 10 y, annual production of egg cases, and an adult size range of 40 to > 160 mm shell length (SL). This life history combined with the animal's generalist ecological preferences and broad physiological tolerances makes rapa whelks well suited for ecological success along a gradient of habitat and community types. Ballast water transport of veliger larvae across traditional zoogeographic boundaries has resulted in the establishment of invasive rapa whelk populations in Chesapeake Bay, USA, as well …
Activity In The Pallial Nerve Of Knobbed (Busycon Carica) And Channeled (Busycotypus Canaliculatum) Whelks Recorded During Exposure Of The Osphradiurn To Odorant Solutions, Christopher Magel, Kristin Wakefield, Nancy Targett, Richard Brill
Activity In The Pallial Nerve Of Knobbed (Busycon Carica) And Channeled (Busycotypus Canaliculatum) Whelks Recorded During Exposure Of The Osphradiurn To Odorant Solutions, Christopher Magel, Kristin Wakefield, Nancy Targett, Richard Brill
VIMS Articles
Adult horseshoe crabs (Limulus polyphemus) are the preferred bait in the U.S. east coast whelk pot fishery, but their harvest is being restricted because of severe population declines in the Chesapeake and Delaware bays. To identify other baits, the activity in the pallial nerve of whelks was determined during exposure of the osphradium to odorant solutions prepared from horseshoe crab eggs, horseshoe crab hemolymph, and hard clam (Mercenaria mercenaria) tissue. All three elicited significant responses; bait based on them may provide an alternative to the use of adult horseshoe crabs, although extensive behavioral testing remains to be done. Channeled whelk …