Temporal variability of microplastics in shrimp (Litopenaeus vannamei), feed, water and sediments of coastal and inland culture ponds.

Aquaculture, particularly shrimp farming, is crucial for global food security. However, the increasing presence of microplastics (MPs) in marine environments, shrimp feeds, and atmospheric particles has made MP contamination in shrimp tissues inevitable. This study systematically investigates the abundance, characteristics, and temporal trends (from 15th to the 120th day of culture) of MPs contamination in Litopenaeus vannamei, along with associated feed, water, and sediment across 12 shrimp ponds of two major shrimp-producing regions of India.

Bisphenols in indoor dust: A comprehensive review of global distribution, exposure risks, transformation, and biomonitoring.

Bisphenols (BPs) are pervasive environmental contaminants extensively found in indoor environments worldwide. Despite their ubiquitous presence and potential health risks, there remains a notable gap in the comprehensive reviews focusing on BPs in indoor dust. Existing literature often addresses specific aspects such as exposure pathways, transformation products, or biomonitoring techniques, but lacks a consolidated, in-depth review encompassing all these facets.

Unravelling the ontogeny and tissue-specific expression profiles of immune-related genes in the near-threatened endemic catfish, Clarias dussumieri.

Clarias dussumieri, an air breathing catfish endemic to the Western Ghats in India, is categorized as 'Near Threatened' by the IUCN. This species is of high regional consumer demand and is one of the prioritized candidate species for aquaculture diversification and conservation. Despite its ecological and commercial significance, comprehensive studies on its immune system are lacking.

Microalgae as a potential raw material for plant-based seafood alternatives: A comprehensive review.

Microalgae presents an inducing potential as a primary raw material in crafting plant-based seafood alternatives, revolutionizing the landscape of sustainable food production. These microscopic organisms display a rich nutritional profile, presenting an array of nutrients such as essential amino acids, polyunsaturated fatty acids, vitamins, and minerals comparable to those found in seafood. Their versatile nature allows for the replication of seafood flavors and textures, addressing the sensory aspects crucial to consumer acceptance of substitutes.

Temporal variations in fish diversity, guild dynamics, and their association with environmental variables in a tropical estuary.

Agniyar estuary in Palk Bay on the southeast coast of India, is an important estuary bordering Point Calimere Key Biodiversity Area. Information on the fish diversity and guild dynamics of this typical tropical estuary is lacking. Hence, the present study provided an account of fish diversity and guild dynamics.

A review of exploring the synthesis, properties, and diverse applications of poly lactic acid with a focus on food packaging application.

Polylactic acid (PLA) is an aliphatic polyester, which is primarily synthesized from renewable resources through the polycondensation or ring-opening polymerization of lactic acid (LA)/lactide. LA can be conveniently produced via the fermentation of sugars obtained from renewable sources such as corn and sugar cane. Due to its biodegradable and biocompatible nature, PLA exhibits a vast range of applications.

Oreichthys warjaintia, a new species of cyprinid fish from Meghalaya, India (Cypriniformes: Cyprinidae).

Oreichthys warjaintia, new species, is described from the Pyrngang stream (Surma-Meghna basin), Meghalaya, northeast India. It can be distinguished from all known species within the genus Oreichthys in having the following combination of characters: complete lateral line with 25-27 pored scales, 13 branched pectoral-fin rays, 5-5½ branched anal-fin rays, 14 rows of papillae on suborbital, ½3/1/2½ scale rows in transverse line on body, presence of a black blotch on caudal-fin base, and in the coloration of dorsal, caudal, and anal fins. Oreichthys warjaintia is distinct from all known Oreichthys species for which mitochondrial cox1 sequence data are available by a raw genetic distance ranging from 8.

Ekman revisited: Surface currents to the left of the winds in the Northern Hemisphere.

Ekman's theory of wind-driven ocean currents on a rotating planet is central to our understanding of why surface currents are deflected to the right of the winds in the Northern Hemisphere and to the left of the winds in the Southern Hemisphere. The theory admits solutions for currents deflected in the opposite direction at periods shorter than the local inertial period, but Ekman did not mention these currents, and they have only rarely been observed. Here, we describe a prominent example of surface flow in the Bay of Bengal directed to the left of clockwise-rotating land breeze wind forcing using multiple years of data from a long-term deepwater surface moored buoy.

Kinetics of viral hemorrhagic septicemia virus (VHSV) and immune response in olive flounder (Paralichthys olivaceus) at altered temperature.

Viral hemorrhagic septicemia virus (VHSV) is a pathogen that causes hemorrhagic septicemia in olive flounder at water temperatures below 15 °C, leading to symptoms such as abdominal swelling due to ascites and muscle hemorrhaging, and in severe cases, mortality. In this study, we investigated the proliferation of NCCs, the transcriptional analysis of CD4 and CD8, and the expression of pro-inflammatory cytokines (IL-1β, IL6, TNFα) and the cytokines (IL12, IL15, IFN-1β, IFNγ) involved in cytotoxic cell activation in the kidney of olive flounder during VHSV infection at suboptimal temperature (17 °C) and following a shift to optimal temperature (10 °C). Following viral infection, the population of NCCs and CD8 gene expression steadily increased.

Transcriptomic analysis of CNTF-treated mouse subventricular zone-derived neurosphere culture reveals key transcription factor genes related to adult neurogenesis.

Neural Stem Progenitor Cells (NSPCs) maintenance and neuronal cell differentiation are the two key aspects of sustained neurogenesis in the adult mammalian brain. Transcription factors (TFs) are known to regulate these biological processes under the influence of various neurotrophic factors. Understanding the role of key TF genes in regulating adult neurogenesis is essential for determining the functional complexity and neuronal diversity seen in the adult mammalian brain.

Optimization of vacuum impregnated nutmeg rind candy using RSM modeling: effect on functional and nutritional properties.

Vacuum impregnation (VI) stands as an innovative technique, used to create novel food formulations by impregnating vital nutritive compounds into natural food matrices. Process variables were syrup temperature ranging from (50 to 70 °C), syrup concentration (60° to 80° Brix), and VI duration (10 to 20 min). The optimal conditions emerged at 66.

Multifaceted bioactivity of marine fungal derived secondary metabolite, xyloketal B -a review.

Background: A growing number of findings have focused on the distinctive physiochemical characteristics that marine microorganisms have acquired as a result of their adaptation to the challenging conditions inherent in the marine environment. It has been established that the marine environment is a very rich source of bioactive substances with a variety of biological effects and structural diversity. A major discovery was the extraction of xyloketals from sp.

Embryonic development of the world's smallest puffer fish, - a threatened freshwater fish of the Western Ghats Biodiversity Hotspot.

The Malabar dwarf puffer, is the smallest known pufferfish (family Tetraodontidae) and one of the smallest freshwater fishes of the Indian subcontinent. Due to their miniature size, wacky behaviour and appearance, they are much preferred in the international aquarium fish trade, although little is known regarding their breeding activity in captivity and their embryonic development. The purpose of this study was to fill these knowledge gaps.

Turbulent characteristics of momentum flux in the marine atmospheric boundary layer of North Bay of Bengal.

We use a 16-month-long, 20 Hz wind data from a mooring deployed in the Bay of Bengal (BoB) to study the characteristics of turbulent wind stress ( events in the marine atmospheric boundary layer (MABL). Quadrant analysis of the motion-corrected and suggests that sweep and ejections, representing downward stress transfer into the ocean, dominate the (~ 140%). In comparison, outward and inward interactions representing an upward stress transfer into the atmosphere provide the counter-contribution (~ 40%).

Pesticides under the category of persistent organic pollutants and emerging contaminants in surface sediments of an Arctic Fjord and nearby lakes.

This study focuses on the distribution of some selected organochlorine pesticides and emerging contaminants within the surface sediments of an Arctic fjord, Kongsfjorden and nearby lakes. Organochlorine pesticides (OCPs) such as dicloran, p,p'-DDT, p,p'-DDE, p,p'-DDD were studied along with five emerging contaminants namely diuron, chlorpyrifos, dicofol, pendimethalin and bifenthrin. The highest values of OCPs recorded among the fjord and lake environments during the time of study was 0.

Viral reprogramming by nervous necrosis virus alters key metabolites and its pathways in sevenband grouper (Hyporthodus septemfasciatus) gills.

Nervous necrosis virus (NNV) which mainly infects sevenband grouper (Hyporthodus Septemfasciatus) is considered a potential threat to the grouper aquaculture industry. The gills being one of the portal of entry and an active site of replication of fish viruses emphasises its role as a key region to study the metabolomic changes caused by viral reprograming and hijacking of metabolic pathways associated with immunity of the host. In the present study, liquid chromatography mass spectrometry (LC-MS) was used to detect changes of endogenous compounds of the grouper after NNV infection.

Early life-history stages of the olive barb, Systomus sarana (Hamilton), and a key ontogenetic systematic character of Smiliogastrinae.

The current study aims to uncover the early life-history stages of Systomus sarana, a medium-sized smiliogastrin cyprinid important for aquaculture in South Asia. The fish were effectively bred in captivity by administering 0.25 mL of breeding hormone per kilogram of fish.

Pulsed light processing of sugarcane juice: quality evaluation and microbial load assessment.

Background: Freshly extracted sugarcane juice is an ideal substrate for microbial fermentation and browning reactions. The present study is the first report on the potential of pulsed light (PL) processing in improving microbial stability with the retention of major bioactive. PL processing at different levels of voltage (2.

Co-infection of Lactococcus garvieae and Aeromonas hydrophila in cultured Nile Tilapia in Kerala, India.

Co-infection of Lactococcus garvieae and Aeromonas hydrophila, has been confirmed from diseased Nile Tilapia (Oreochromis niloticus), Chithralada strain cultured in a freshwater rearing pond of Alappuzha district of Kerala, India. The aetiological agents behind the disease outbreak were bacteriologically proven and confirmed by 16SrRNA sequencing and phylogenetic analysis. PCR detection of the virulent genes, showed existence of adhesin and hemolysin in L.

Influence of chitosan properties and operating parameters on the flocculation efficiency and harvesting of microalgae (Scenedesmus sp.).

Physicochemical and structural characteristics of chitosan prepared from Deep-sea shrimp (DCs), including degree of deacetylation (DD), molecular weight (Mw), viscosity, crystallinity index (CrI) and surface morphology were compared with a commercial chitosan (CCs). The DCs had a higher DD of 81.33 ± 0.

Resolving fusilier puzzles: The identity of Squamosicaesio marri and Pterocaesio flavifasciata, and a new record of Flavicaesio suevica from the Western Indian Ocean.

A phylogenetic analysis incorporating mitochondrial cox1 gene sequences of members of the family Caesionidae revealed the conspecificity of Pterocaesio flavifasciata and Squamosicaesio marri, which was also supported by the absence of any clear morphological diagnostic characters and meristic counts to separate the two species. Additionally, we provide the first record of the Suez fusilier, Flavicaesio suevica, from outside the Red Sea, based on specimens collected from the Laccadive archipelago, Western Indian Ocean. Together, these results show that the taxonomy, diversity, and distribution of members of the family Caesionidae continue to be poorly known, necessitating a comprehensive range-wide study.

Evidence of microplastics in the polychaete worm (capitellids-Capitella capitata) (Fabricicus, 1780) along Thoothukudi region.

Research on the occurrence of microplastics in invertebrates of the Thoothukudi region is limited. Capitellids are non-selective suspension feeders and are usually used as bioindicator of water pollution. Hence, an investigation was carried out to identify the microplastic occurrence in the capitellids (Capitella capitata) (Fabricius, 1780) collected from the Vellapatti and Spic Nagar sites of the Thoothukudi region.