To better understand growth and age-pigment (lipofuscin) accumulation rates of the blue crab Callinectes sapidus under natural conditions, juveniles (33 to 94 mm carapace width) were reared in outdoor ponds for over 1 yr. Growth rates, measured by carapace width, during summer and fall exceeded all those reported in the literature; the initial carapace width of 59 ± 14 mm (mean ± SD) increased ...

studies on the biometric parameters of a species to have an important role in its population or stock management and conservation. present study investigated the morphometric, meristic, length-weight relation (lwrs), length-length relation (llrs) and growth status (k and kn) of the redline torpedo barb, p. denisonii collected during august 2012 to july 2013 from river valapattanam, kerala. the ...

Fiber size is an important factor in the tumorigenicity of various mineral fibers and asbestos fibers in animal experiments. We examined the time course of the ability to induce lucigenin-dependent chemiluminescence (CL) from human monocyte-derived macrophages exposed to Japan Fibrous Material standard reference samples (glass wool, rock wool, micro glass fiber, two types of refractory ceramic ...

to determine the relationship between yield and components of it and identify the effective traits on yield, 97 tomato landraces from west azarbaijan in iran (83 landraces) and iğdır in turkey (14 landraces) along with three commercial cultivars were studied using an alpha lattice design with two replications. the experiment was carried out at the agriculture and natural resources research cent...

a set of 29 persimmon genotypes were characterized using morphological characters and rapd markers. some fruit traits of: fresh weight, fruit length and diameter, firmness, fruit juice ph, ta, tss, flavor index, fruit skin and flesh color, seededness, leaf length and width were evaluated. analysis of variance for the investigated characters showed that genotypes were significantly different. re...

during conduction a survey of entomopathogenic nematodes throughout arasbaran forests and rangelands, north west of iran in 2007-2008, an entomopathogenic nematode was isolated using galleria baiting method from soil samples collected from rangelands, near chichakloo, varzeghan, east azarbaijan. it was identified as steinernema kraussei (steiner, 1923) travassos, 1927 based on morphology and mo...

A morphometric comparison of seven hypotriploid populations with five pooled triploid populations of Meloidogyne arenaria was made using standard descriptive statistics, stepwise discriminant analysis (SDA), and cluster analysis. Six morphometric characters of females, 14 of second-stage juveniles (J2), and 18 of males were measured for each population. Useful differentiating characters include...

Intertidal reefs comprised of the eastern oyster (Crassostrea virginica) have long experienced habitat loss, altering patch characteristics size and distance from edge to interior, potentially influencing spatial dynamics host-parasite relationships. Using two parasitic relationships, one between host pea crab (Zaops ostreum) other a xanthid (Eurypanopeus depressus) rhizocephalan barnacle (Loxo...

Current models for oak species could not accurately estimate biomass in northeastern China, since they are usually restricted to Mongolian (Quercus mongolica Fisch. ex Ledeb.) on local sites, and specifically, no available Liaodong (Quercuswutaishanica Mayr). The goal of this study was, therefore, develop generic both a large scale evaluate the allocation patterns within tree components. A tota...

Juvenile blue crabs Callinectes sapidus use seagrass and other structured habitats as refuges from predation. Oyster reef provide structural complexity that may offer refuge, but the value of these for juvenile has not been examined. We quantified survival C. in oyster habitat versus unstructured soft-bottom habitat. In a field tethering experiment York River, lower Chesapeake Bay (USA), (10-50...