Multiple Ovipositions from Single Matings in the Mud Crab Rhithropanopeus harrisii
نویسندگان
چکیده
منابع مشابه
The Iraqi crab, Elamenopsis kempi in the Panama Canal: distribution, abundance and interactions with the exotic North American crab, Rhithropanopeus harrisii
We report on the distribution and abundance of the Iraqi crab Elamenopsis kempi in the Panama Canal and investigate possible interactions of this species with another invader, the North American mud crab, Rhithropanopeus harrisii. While more widespread than R. harrisii, E. kempi is currently limited to four locations within the Canal area: the Miraflores Lake, the Miraflores Spillway, the South...
متن کاملThe ontogeny of osmoregulation and its neurosecretory control in the decapod crustacean, Rhithropanopeus harrisii (Gould).
SYNOPSIS. Laboratory-hatched larvae of this estuarine crab were reared at 25°C in seawater of 25%,, salinity for 18 days covering zoeal Stages I to IV and a megalops. Three-day per.iods between zoeal stages represent intermolt stages of circadean metecdysis, diecdysis, and proecdysis. Larvae were exposed to either a series of seawater salinities from 5-40%0 in 5%0 increments or of 10-40%,, in 1...
متن کاملThe effects of parasitism by the barnacle Loxothylacus panopaei (Gissler) (Cirripedia: Rhizocephala) on growth and survival of the host crab Rhithropanopeus harrisii (Gould) (Brachyura: Xanthidae)
The crab Rhithropanopeus harrisii (Gould) (Brachyura; Xanthidae) was infected in the laboratory with the parasitic barnacle Loxothylacus panopaei (Gissler) (Cirripedia; Rhizocephala). Crabs and barnacles were collected in the Rhode River in the Chesapeake Bay, MD. Forty-three out of 153 R. harrisii, including stages from megalopa «1 mm of carapace width) to crab 8 stage (:±:8 mm of carapace wid...
متن کاملThe embryonic development of orange mud crab, Scylla olivacea (Herbst, 1796) held in the captivity
This study attempts to observe and record early embryonic developments of the orange mud crab, Scylla olivacea. The period taken by the eggs to hatch was 8 days and the colour of the eggs gradually changed from yellow to brown, gray and dark gray. During the embryonic development, the developing embryos reached the blastula stage within 24 hours with a mean egg diameter of 329.91 µm ± 6.62. The...
متن کاملThe embryonic development of orange mud crab, Scylla olivacea (Herbst, 1796) held in the captivity
This study attempts to observe and record early embryonic developments of the orange mud crab, Scylla olivacea. The period taken by the eggs to hatch was 8 days and the colour of the eggs gradually changed from yellow to brown, gray and dark gray. During the embryonic development, the developing embryos reached the blastula stage within 24 hours with a mean egg diameter of 329.91 µm ± 6.62. The...
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ژورنال
عنوان ژورنال: Journal of Crustacean Biology
سال: 1983
ISSN: 0278-0372
DOI: 10.2307/1547949