The effects of emamectin benzoate or ivermectin spiked sediment on juvenile American lobsters (Homarus americanus)
نویسندگان
چکیده
منابع مشابه
Effect of emamectin benzoate on the molt cycle of ovigerous American lobsters Homarus americanus is influenced by the dosing regimen
Emamectin benzoate, the active ingredient in SLICE®, targets the nervous system of arthropods. Ingestion of high doses causes ovigerous American lobsters Homarus americanus to molt before their eggs hatch. To determine the effect of repeated exposure to doses at or below the noobserved-effect level (NOEL) of a single exposure (NOEL: 0.12 μg g–1), ovigerous lobsters were given either a single do...
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Agonistic behavior of decapod crustaceans occurs in the wild, is highly stereotypical, and is readily quantifiable. Here we explore the persistence of dominance relationships in socially naı̈ve juvenile American lobsters (Homarus americanus) by examining the time frame over which behavior changes as a result of previous fight experience. We paired opponents for three fights: initial; 1 hour late...
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We have used immunocytochemical methods to examine the sequence of appearance of octopamine-immunoreactive neurons during development, and to try to correlate that appearance with the emergence of behavioral or physiological capabilities. The first octopamine neurons express their transmitter phenotype at approximately 43% of embryonic development. The last cells show immunostaining at the 3rd ...
متن کاملBait and the susceptibility of American lobsters Homarus americanus to epizootic shell disease.
Shell disease (SD) has been observed in lobster populations for almost a hundred years, but recently, rates of an epizootic form of shell disease (ESD) have increased in the southern New England (USA) area. A large proportion of fish in the diet of American lobsters Homarus americanus has been linked to increased rates of SD. Therefore, the use of fish as lobster bait may be linked to increased...
متن کاملA noninvasive method for in situ determination of mating success in female American lobsters (Homarus americanus).
Despite being one of the most productive fisheries in the Northwest Atlantic, much remains unknown about the natural reproductive dynamics of American lobsters. Recent work in exploited crustacean populations (crabs and lobsters) suggests that there are circumstances where mature females are unable to achieve their full reproductive potential due to sperm limitation. To examine this possibility...
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ژورنال
عنوان ژورنال: Ecotoxicology and Environmental Safety
سال: 2018
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2018.06.075