A5031410566- Crustacean biology and ecology
- Neurobiology and Insect Physiology Research
- Insect and Arachnid Ecology and Behavior
- Physiological and biochemical adaptations
- Aquaculture Nutrition and Growth
- Marine Ecology and Invasive Species
- Calcium Carbonate Crystallization and Inhibition
- Parasite Biology and Host Interactions
- Reproductive biology and impacts on aquatic species
- Insect Utilization and Effects
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Heat shock proteins research
- Genetics, Aging, and Longevity in Model Organisms
- Environmental Toxicology and Ecotoxicology
- Marine Bivalve and Aquaculture Studies
- Mercury impact and mitigation studies
- Layered Double Hydroxides Synthesis and Applications
- Infant Health and Development
- Protein Hydrolysis and Bioactive Peptides
- Coral and Marine Ecosystems Studies
- Cassava research and cyanide
- School Health and Nursing Education
- Aquatic Invertebrate Ecology and Behavior
- Biocrusts and Microbial Ecology
Weber State University
2001-2024
Southeastern Louisiana University
1997
University of South Alabama
1993
University of California System
1976-1988
Artemia nauplii are important bait or food sources in aquaculture, but the egg shells after incubation always subjected to discarding as natural wastes; therefore, application and utilization of egg-shell wastes will be an issue. Herein, we reported a new hybrid biomaterial by encapsulating nano-Mg(OH)2 onto discarded for phosphate sequestration enhancement. The unique hierarchically 3D-layered structure can endow well-defined morphology efficient adsorption performances. results final...
Of the 14 nominal species that are now or have ever been assigned to genus Paranemertes Coe, 1901, four reported stylets with a spirally fluted braided appearance. Although differentiation in color patterns has documented among species/populations, these nemerteans share similar external characters. Using sequence datasets of mitochondrial cytochrome c oxidase subunit I (COI), 16S rRNA, and nuclear 28S rRNA genes specimens from localities Canada, USA, Russia, Japan, China, we analyzed...
Carcinonemertes epialti had a minimal impact on the egg mortality of lightly infested population commercially important crab host, Cancer anthonyi. The nemertean high prevalence (> 97%) but was found at low intensities (mean intensity = 86.5 worms/pleopod, mean density 0.3 worms/1000 eggs). Egg varied from 0.0–30.5%, and highly correlated with both worm intensity, timing embryogenesis 5.7%). Separate sites within pleopod experienced different causal mechanisms mortality. Mortality base...
The possible presence of egg predators in brood masses portunid crabs from Pacific Central America has not been studied yet. This survey reports the finding a nemertean crab predator on crab, Callinectes arcuatus, Golfo de Nicoya, Costa Rica. Nemerteans were found 26 out 74 for prevalence 35%. intensity (mean number worms/ infected crab) was estimated to be 18 with variance 1–123 worms/infected crab. No nemerteans observed either 19 C. arcuatus Dulce (southern coast) and 10 Portunus asper...
ABSTRACT The effects of eyestalk ablation on integumental growth were examined at the cellular level in larval and adult grass shrimp, Palaemoneles pugio. Eyestalk removal oflarval shrimp resulted molt increments ranging 9-15% compared to 7-10% for intact larvae. Eyestalk-ablated larvae showed a 12―25% lower cell density postmolt control cycle duration did not differ between experimental adults from 6―13% 3-6% controls. Eyestalkless had 12-26% 17-36% shorter adults. Smaller demonstrated...
The adult blue crab Callinectes sapidus Rathbun inhabits the estuaries
Nemerteans can experience fluctuating salinity during exposure to low tides in intertidal mudflats. This study attempted determine if stress proteins (SPs) be induced nemerteans exposed salinities under laboratory conditions. Paranemertes peregrina Coe 1901 were collected from The ribbon worms then acclimated at 34‰ for 3–4 days prior the experiments. For hyperosmotic experiment, 39 and 44‰ selected. Salinities of 24 29‰ used hyposmotic experiment. Both experiments as control. Three sampled...
Summary Ecdysteroids in non-reproductive, reproductive, and post-reproductive specimens of two nemerteans, Paranemertes peregrina Pantinonemertes californiensis, were studied using radioimmunoassay (RIA). Ecdysteroid concentrations increased during the reproductive season females both species. These data suggest possibility that ecdysteroids are involved reproduction. Study ecdysteroid profiles reverse phase high-performance liquid chromatography (RP-HPLC) followed by RIA showed types...
Intertidal ribbon worms in the phylum Nemertea live environments where temperature and salinity can vary widely depending on tidal fluctuations.Heat shock proteins (Hsps) are expressed by cells their physiological responses to these changing abiotic factors.To understand role of Hsps, presence Hsp70 Hsp90 was determined western blotting two nemertean species, Lineus alborostratus Quasitetrastemma stimpsoni after 2-and 4-h thermal stress.Additionally, tissue distributions Hsps were detected...
Tachykinins (TKs) are a family of neurotransmitters that function as signaling molecules for such processes maintaining homeostasis, regulating stress response, and modulating pain. TKs require the expression at least one three receptor subtypes: Neurokinin Receptor-1 (NKR-1), Receptor-2 (NKR-2), or Receptor-3 (NKR-3). We have isolated cloned portion gene coding tachykinin-like from nemertean Paranemertes sp. This 488-bp contains short 101-bp segment shares 85% similarity to mouse...
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