Abstract Understory vegetation is an important component in most forest ecosystems. It very for soil and water conservation karst region, study on understory will provide valuable information understanding the interaction mechanism between flora environment. Thirty-two plots were sampled three types along with a restoration gradient (shrubland, forest–shrub transition, mixed-species broadleaf forest) typical mountains Southwest Guangxi, China. Overstory trees, vascular plants, nutrients,...

A 60‐day feeding trial was conducted to evaluate the impact of dietary Antarctic krill meal on reproductive performance and embryo quality Chinese mitten crab, Eriocheir sinensis . Three diets were formulated, incorporating varying levels at 0% (Diet K0), 10% K10), 20% K20), with a control group fed razor clam Sinonovacula constricta Each diet randomly assigned three replicate tanks, each stocked 5 males 10 females. Male female weights 145.38 ± 8.01 102.57 9.73 g, respectively. The results...

The effects of long-term fasting on the oxidative stress and antioxidant defenses in juvenile Chinese sturgeon (Acipenser sinensis) were studied. biomarkers included lysozyme (LSZ), ability inhibiting hydroxyl radicals (AIHR), total capacity (T-AOC). fasted for 24 hours at first. Blood samples taken from fish a 8 times, upon sampling every 6 days during remaining 48-day starvation period. LSZ activity juveniles generally increased as time increased. Furthermore, significant difference...

To explore the effects of temperature on reproductive performance and embryonic development female Eriocheir sinensis broodstock, reproduction experiments broodstock crabs under different temperatures (6, 9, 12, 15, 18, 21°C) were carried out. Each was replicated in three parallel tanks, with 5 male 10 stocked each tank for feeding. The results showed that rising temperature, mating rate increased gradually, spawning rate, amount, fecundity index first then decreased. At 15°C, reached...

Abstract Under the influence of global warming, excessive temperatures may affect adult female Eriocheir sinensis at a sensitive stage, changing reproductive process, which is critical for persistence populations. Thus, effects high temperature on performances and hormone changes E. were analysed. The results showed that mating spawning rates maintained >80% 10–25°C 10–15°C, respectively. However, rate was only 16.67 ± 40.82% 25°C. It inferred behaviour more affected by temperature, 25°C...

Heat stress is an increasingly concerning topic under global warming. can induce organisms to produce excess reactive oxygen species, which will lead cell damage and destroy the antioxidant defense of aquatic animals. Chinese mitten crab, Eriocheir sinensis, sensitive change in water temperature, parent crabs are more vulnerable during breeding stage. In present study, multi-omics responses E. sinensis gills heat (24 h) were determined via transcriptome proteome. The integrative analysis...

"Osmotic and ionic regulation Na+/K+-ATPase, carbonic anhydrase activities in mature Chinese mitten crab, Eriocheir sinensis H. Milne Edwards, 1853 (Decapoda, Brachyura) exposed to different salinities" published on 01 Jan 2012 by Brill.

Mature Chinese mitten crabs, Eriocheir sinensis, were exposed to brackish water or seawater as an obligatory part of their reproductive migration. Physiological and biochemical reorganization needed adapt them this To understand the digestive adjustments sinensis at level during transformation from freshwater seawater, response activity five enzymes (amylase, cellulase, pepsin, trypsin lipase) in hepatopancreas salinities increasing gradually 0 (freshwater) 35 (seawater) was analysed mature...

The hypothesis was tested that cryodamage occurs during the storage of semen at −196°C and cryopreservation has a negative effect on enzyme activity motility in Russian sturgeon, Acipenser gueldenstaedtii. In addition, aim study to determine metabolic enzymes, including adenosintriphosphatase (total ATPase), creatine kinase (CK), succinate dehydrogenase (SDH) lactate (LDH), plus antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) reductase...

Abstract Background The provision of habitat for fishery species in estuaries is highly valued and represents one the most challenging ecosystem service values to quantify. However, quantifying this value due complex relationships between change, ecological processes, environmental variations. This study aims estimate estuarine degradation its impact on reproduction process crab Eriocheir sinensis by characterizing changes breeding investigating Yangtze River Estuary. Methods A distribution...

In order to find out the effects of salinity on reproductive characteristics and embryo quality female E. sinensis broodstock, mating spawning experiments broodstock under different salinities (3, 6, 9, 12, 15, 18, 21 ppt) were conducted, each treatment had three replicate tanks with five males 10 females stocked in tank. The such as rate, egg production, index fecundity, diameter, weight, biochemical composition fatty acid embryos analysed. results showed that crabs can mate but did not...

Background Quit smoking, moderate drinking, exercise, and healthy eating habits are all known to decrease the risk of stroke. As a result, understanding health behaviors high groups for stroke is crucial. Health behavior influenced by knowledge, social environment, beliefs. However, little research has been done on these relationships. For better grasp relationships mentioned above, consider using COM-B model (capability, opportunity, motivation, behavior). The purpose this study was...

Hypophthalmichthys nobilis are widely distributed in the Yangtze River basin and its related lakes. They an important economic fish species a famous cultured known as "Four Famous Domestic Fishes" China. Currently, with fishing ban basin, for H. natural water bodies of has been completely prohibited. In order to identify sources appearing market, further control accountability, it is necessary trace bodies. Therefore, this study identified traced different through muscle element fingerprint...

A shelter is a good habitat for aquatic organisms, which could aid in avoiding cannibalism and facilitate predation. Chinese Mitten Crab (Eriocheir sinensis) an important aquaculture species with troglodytism nocturnal habit. To clarify the preference shelters at different developmental stages of E. sinensis, (mud, sand, grass rocks) were selected comparison. These results indicated that juvenile crabs had significant grass; button-sized preferred to hide mud; favorite parent rocks, followed...

庞世龙 1,2,3 何琴飞 黄小荣 何 峰 1 (广西壮族自治区林业科学研究院, 南宁 530002) 2 (广西优良用材林资源培育重点实验室, 3 (广西漓江源森林生态系统国家定位观测研究站, 广西桂林 541316) 4 (广西壮族自治区林业局退耕还林办公室, 530028) 摘要: 探索林下植被分布格局及其影响因素, 对于天然林保护和森林生物多样性维持机制研究具有重要意义。本 文以桂西南喀斯特地区不同蚬木(Excentrodendron tonkinense)天然成熟林为研究对象, 采用植物群落样方调查、单 因素方差分析、 Pearson相关分析和冗余分析(RDA)等方法, 研究了8个县市蚬木天然成熟林林下植被物种多样性的 变异及其对土壤、地形和光照等环境因子的响应。结果表明, 林下植被中灌木层优势种主要有越南槐(Sophora tonkinensis)、鹅掌柴(Schefflera heptaphylla)、毛果翼核果(Ventilago calyculata), 以及乔木层幼苗如蚬木、广西澄广 花(Orophea anceps)、岩樟(Cinnamomum...

We have examined the effects in vitro of ionic composition, pH and temperature on motility by spermatozoa Japanese eel (Anguilla japonica). Milt was obtained from 10 males that had been artificially matured repeated injections hCG. Sperm monitored with a VHS video recorder camera connected to microscope. The results showed most sperm were highly motile 250-700 mM NaCl, 250-650 KCl 350-550 CaCl2 solution. longest duration recorded 500 250 350 not when suspended at 2, observed 3, there...

The world's population is getting older. This issue accompanied by a rise in the number of older people suffering from dementia and disability, for whom oral hygiene care challenging. Nurses' attitudes toward providing (POC) are critical elderly, while few studies have investigated determinant factors nurses' identifying current work pressure, resilience self-efficacy geriatric facilities (GCFs). It great significance to explore POC associated influencing related psychological aspects...

[The response of embryos the Chinese mitten crab ( Eriocheir sinensis ) in terms survival to cryoprotectants was investigated for basic knowledge enhance cryopreservation success E. embryos. Five stages embryonic development (cleavage, blastula, gastrula, eyed stage, and heart-beating stage corresponding 7, 14, 20, 26, 31 days post-spawning) were chosen exposed various cryoprotectants, namely methanol (MeOH), propylene glycol (PG), dimethyl sulfoxide (DMSO), dimethylformamide (DMF), at three...