Crustacea - Science topic

In this work, we report the results of some movies regarding the predation of N. milleri on A. pallipes. It was a useful opportunity to observe some behavioral strategies. Skillful maneuvers by N. milleri, combined with toxic saliva, allow it to attack a large prey in relation to its size.

Portunus trituberculatus holds significant economic value. The spermatogenesis is regulated by numerous signaling pathways. Among them, the TGF-β signaling pathway plays an important role in the development of testes and spermatogenesis. Smad4 is a Co-Smad protein that forms a complex with R-Smad to regulate the expression of target genes. The sper...

During parasitological surveys of marine fishes and zooplankton in localities of the Northwestern Pacific coast of Mexico, 28 Gafftopsail pompano (Trachinotus rhodopus Gill) and 50 mysid crustaceans (Metamysidopsis frankfiersi Hendrickx & Hernández-Payán) we identified to be infected with adults and cystacanths, respectively of an acanthocephalan m...

Neurons depend on two interdependent mechanisms-homeostasis and neuromodulation-to maintain robust and adaptable functionality. Homeostasis stabilizes neuronal activity by adjusting ionic conductances, whereas neuromodulation dynamically modifies ionic properties in response to external signals. Combining these mechanisms in conductance-based model...

The fossil shrimp species Caridina nitida A. Milne-Edwards, 1879 described from the Oligocene lacustrine deposits of Aix-en-Provence was considered to be a nomen dubium. Based on newly discovered specimens at the type locality, we provide an illustrated re-description of this species. The detailed morphological study leads us to place C. nitida wit...

Macrobrachium nipponense is a commercially important freshwater species of prawn that is widely distributed across Asian countries. In order to investigate the molecular mechanisms of growth in M. nipponense, and to provide a foundation for molecular breeding, we used genome-wide association analysis (GWAS) and transcriptomic analysis to screen pol...

Seison nebaliae was discovered in 1859 by Grube, close to Trieste in Italy, on small crustaceans of the genus Nebalia. Since then, Seisonidae have attracted a considerable amount of attention and have been the focus of morphologi cal and phylogenetic investigations. What is it that makes Seisonidae such a particularly interesting object of study am...

Short summary: The list of alien marine faunal species reported along the Apulian coasts until 2010 is updated with data resulting from numerous ad hoc samplings adding several new findings. 70 new species were added, especially among Polychaeta, Mollusca, Crustacea, Ascidiacea, while alien Bryozoa are recorded for the first time. Among the recorde...

The transition to a sustainable bioeconomy requires the development of advanced materials with improved functional properties, in particular bio-based products that could have a low environmental impact. Chitosan, derived from crustacean chitin, is a biodegradable biopolymer with multiple applications in the pharmaceutical, cosmetic and food sector...

The use of abiotic ecological indicators in environmental monitoring does not always reliably reflect the level of anthropogenic impact on aquatic ecosystem. Our study aims to estimate possible differences in abiotic and biotic index-based assessments of the impact of industrial pollution on water quality in the small boreal river located at the ea...

We present the Noisy Ostracods, a noisy dataset for genus and species classification of crustacean ostracods with specialists' annotations. Over the 71466 specimens collected, 5.58% of them are estimated to be noisy (possibly problematic) at genus level. The dataset is created to addressing a real-world challenge: creating a clean fine-grained taxo...

The feeding habits of the invasive alien devil firefish (Pterois miles) and the indigenous scorpaenids Scorpaena porcus, Scorpaena scrofa, and Scorpaena notata in the eastern Mediterranean Sea were investigated based on stomach content analysis. Furthermore, we examined whether these confamiliar species feed upon similar prey. Specimens were captur...

Background: Carotenoids play essential nutritional and physiological roles in aquatic animals. Since aquatic species cannot synthesize carotenoids de novo, they must obtain these compounds from their diet to meet the physiological and adaptive requirements needed in specific aquaculture stages and conditions. Carotenoid supplementation in Artemia r...

An oceanographic cruise from the southern Adriatic to the northern Ionian Sea in May 2013 allowed us to describe the spatial abundance and distribution of decapod crustacean larval assemblages with a multidisciplinary approach. Seventeen locations on the Apulian and Albanian shelves and offshore waters, including the Strait of Otranto, were sampled...

The Galinha dinosaur tracksite (Portugal) was declared a Natural Monument in 1996 and is currently designated as Ourém/Torres Novas Dinosaur Footprints Natural Monu ment. This tracksite yields a completely new and unique morphology of sauropod tracks from the Middle Jurassic (Bajocian-Bathonian). This new morphotype was named Polyonyx by Santos et...

Solar ultraviolet (UV) is among the most important ecological factors shaping the composition of biota on the planet’s surface, including the upper layers of waterbodies. Inhabitants of dark environments recently evolving from surface organisms provide natural opportunities to study the evolutionary losses of UV adaptation mechanisms and better und...

A new species of Oniscidea, Trachelipus razzauti, and a new species of Diplopoda, Typhloiulus serborum, are recorded first time for the Romanian fauna. Both species have been "discovered" in the collection of the "Emil Racoviţă" Institute of Speleology.

This study describes some morphometric and molecular aspects of four species of hermit crabs (Clibanarius clibanarius, Clibanarius padavensis, Clibanarius infraspinatus, and Diogenes rectimanus) reported for the first time from Bangladesh. A total of 15 COI sequences were generated for these four species. The average genetic distances found withi...

Aim i) to characterize the composition of the Cladocera species hatched from the resting eggs of permanently hydrated and temporarily dehydrated sediments; ii) to test whether periodic dehydration reduces the hatching of the resting eggs. Methods Cladocera resting eggs were collected from the sediment of Tupé lake, Amazonas, Brazil. Sampling was pe...

The tapeworm Ligula intestinalis (Linnaeus, 1758) is a broadly distributed parasite with high epidemiological significance. Its first intermediate hosts are crustaceans, its second intermediate hosts are fish, while the definitive hosts are various fish-eating birds and, as recently shown, ringed seals. The stages of Ligula intestinalis in fish are...

Crabs are the most widely studied marine crustaceans due to their high economic value, ecological significance, and worldwide range in the subtropics and tropics zones. In this study, we adopted a molecular barcoding approach for rapid identification of blue crab species by sequencing the mitochondrial cytochrome c oxidase subunit I gene (COI), whi...

Contaminants are transported into estuaries during rainfall events, impacting the physiology of harvested species, and thereby threatening fisheries sustainability. Decapods are among the most economically important groups harvested from estuaries, but are at high risk of contaminant exposure. We conducted a systematic review and meta-analysis eval...

The Taraba Sound is situated north of the Strait of Magellan within the Chilean fjord and channel system. In this inlet, samples were collected at three beach levels (supralittoral, mesolittoral and infralittoral) along four transects perpendicular to the coastline. A total of 2,754 specimens were collected and identified, representing seven phyla...

The conserved role of juvenile hormone (JH) signals in preventing larvae from precocious metamorphosis has been confirmed in insects. Crustaceans have different metamorphosis types from insects; we previously proved that methyl farnesoate (MF) can prohibit larvae metamorphosis in mud crabs, but the molecular signal of this process still needs to be...

Coastal ecosystems are affected by numerous direct anthropogenic pressures (urbanization, fisheries, etc.) and global changes (climate change, biological invasions, etc.). Long-term monitoring of their biodiversity is crucial for (1) diagnosing disturbances as early as possible, (2) evaluating conservation (Marine Protected Areas) and restoration a...

Sex differentiation in crustaceans is a complex process influenced by various factors, including the androgenic gland and sex-related genes. This study characterized the role of the Mn-DHCR24 gene in the oriental river prawn (Macrobrachium nipponense). We used bioinformatics to analyze sequence features and phylogenetic relationships of a single Mn...

Through detailed investigations, three sequences of marine and associated deposits in the south-west Baltic area are shown to represent the Eemian interglacial transgression. Pollen analyses and foraminiferal and ostracod analyses are combined to provide the evolution of relative sea-level change. An independent chronology is established by correla...

Predicting which non-indigenous species (NISs) will establish persistent invasive populations and cause significant ecosystem changes remains an important environmental challenge. We analyzed the spatial and temporal dynamics of the entire zoobenthos and the biomass of Marenzelleria spp., one of the most successful invaders in the Baltic Sea, in th...

Decapod crustaceans, commonly utilised for pure or applied scientific research and commercial food production, have generally remained outside ethical debate. However, in the last decade many parts of the world have seen an increase in public interest in the welfare of decapod crustaceans and statutory legal protection has been introduced in severa...

Recent findings have highlighted significant changes in coastal zooplankton at a long-term monitoring station in the Gulf of Naples (LTER-Marechiara site, Tyrrhenian Sea, Western Mediterranean). In particular, after 2010 a relative increase of crustacean and gelatinous filter feeders (cladocerans, appendicularians and thaliaceans) and overall decre...

Anthropogenic activities, such as the introduction of non-native aquaculture species, have significantly altered trophic interactions in marine ecosystems. The hybrid grouper (TGGG), an aquaculture product originating from an artificial F1 crossbreed between Epinephelus fuscoguttatus and E. lanceolatus, has been released into the wild through relig...

Our brain’s neural network is complex. For studying the physiology of complex brain, sophisticated methods such as imaging and multielectrode recordings seem to be required. However, single-neuron level study is critical to understand the network functioning. While we conduct glass microelectrode experiments on the crustacean stretch receptor neuro...

Argulosis, a serious fish disease caused by the crustacean ectoparasite Argulus, results in considerable losses to the global aquaculture industry. This study evaluated the in vitro anti-parasitic efficacy (AE%) of synthesized silver nanoparticles (AgNPs) using an aqueous leaf extract of Azadirachta indica (neem) against the adult and copepodid sta...

Spiny lobster is one of the potential commodities in Indonesia. On the other hand, there is still a problem to fulfill the export-ready stock of spiny lobster. Production engineering can be utilized as one way to overcome the existing problems. Laserpuncture is a new method of production engineering by utilizing low wavelength helium-neon light tha...

Mutualisms are common interactions that involve a diverse array of taxa. An important aspect in the study of mutualisms is determining the mechanisms that underlie benefits in survival, growth and reproduction of the partner species involved. Crayfish are engaged in mutualisms with ectosymbiotic worms called branchiobdellidans. These worms benefit...

Relatamos a primeira ocorrência documentada mundialmente da craca de ganso Lepas (Lepas) anatifera Linnaeus, 1758 como epibionte no caranguejo-aranha Stenocionops furcatus. Um caranguejo-aranha macho foi coletado a uma profundidade de 100 metros na costa de Pernambuco, Brasil. Observamos cinco indivíduos de L. (Lepas) anatifera presos ao caranguejo...

The growing view that consciousness is widespread, multimodal, and evolutionarily non-linear in complexity across the animal kingdom has given rise recently to a variety of strategies for representing the heterogeneous nature of animal phenomenology. While based on markers clearly associated with consciousness in humans, most of these strategies ar...

Technological advances have boosted the ability to obtain large and high-quality ecological data. These new technological tools have the potential to rapidly develop knowledge on how species behave and interact in ecosystems at relevant spatial and temporal scales. Comprehensive time-series datasets on the in situ behaviour and dispersal of wild or...

Fairy shrimps are zooplankton, a small crustacean with high nutritional value and carotenoids. Fairy shrimps are aquatic animals that feed on both living and non-living food by filtering. In Thailand, there are 3 species of fairy shrimps, namely Streptocephalus sirindhornae, Branchinella thailandensis, and Streptocephalus siamenesis. The three spec...

This guideline can be used in the event of a disease outbreak in aquatic animals including finfish, molluscs and crustacea.

Organisms occupy diverse ecological niches worldwide, each with characteristics finely evolved for their environments. Crustaceans residing in deep-sea hydrothermal vents, recognized as one of Earth’s extreme environments, may have adapted to withstand severe conditions, including elevated temperatures and pressure. This study compares the exoskele...

Due to its social, economic, and ecological importance and because it is an area of intense human interaction, this study sought to assess the Crustacea, Decapoda fauna of the urban beach of Boa Viagem, Recife, Pernambuco, Brazil, and, consequently, to understand the anthropogenic interaction of this fauna. From August 2016 to July 2017, monthly tr...

Metachronal rowing of multiple propulsors (paddles) is a swimming strategy used by numerous organisms across various phyla, with body sizes ranging from 0.01 mm to 100 mm. This size range corresponds to a huge variation in flow regimes characterized by Reynolds number ( Re ) ranging on the orders of 10 ⁻² (viscosity dominated) to 10 ⁴ (inertially d...

A central goal of molecular studies on ancient lake faunas is to resolve the origin and phylogeny of their strikingly diverse endemic species flocks. Another equally intriguing goal is to understand the integrity of individual morphologically diagnosed species, which should help to perceive the nature and speed of the speciation process, and the tr...

Two specimens of Mobula thurstoni (Lloyd, 1908) were obtained from fishermen of Karangasem, Indonesia, and studied for trypanorhynch cestodes. Archaenybelina gen. nov., including two new species A. pseudotetrabothrialis sp. nov. and A. mimicricestus sp. nov., were recorded from the stomach and spiral valve and analysed for details of scolex and seg...

The African Cladocera fauna is recognized by high endemism. Several studies have helped to understand the diversity and geographic distribution of some groups of Chydoridae on the continent. However, the literature indicates the presence of species whose natural distribution is presumed to be in other continents, suggesting that the diversity and e...

Introduction In the Southern Ocean, myctophids are the most successful pelagic fish group in terms of diversity, biomass, and abundance. They play a crucial role in linking primary consumers and coupling carbon flux between surface and mesopelagic depths. Understanding their trophodynamics is key to assessing pelagic ecosystem resilience under envi...

Context Urbanisation is pervasive across landscapes and seascapes and leads to the loss, degradation and fragmentation of many natural ecosystems and this has widespread consequences for animals and the ecological functions they support. While the impacts of urbanisation are understood for many individual coastal ecosystems in isolation, it is uncl...

Edible insects may solve the current problem of the greater demand for food for the world’s growing human population. This work aimed to examine the impact of blanching (BL) and ultrasound (US) at 20 and 50 °C as a pretreatment method on the chemical composition, mineral composition, FTIR spectra, presence of allergens and microorganisms, and prope...

SIFamide is an amidated neuropeptide with a conserved Ser-Ile-Phe structure at its C-terminal, which is crucial in insect courtship, sleep and feeding in insects. However, little information exists regarding its function in crustaceans. This study aimed to identify the cDNA of Sp-SIFa and its two putative receptors (Sp-SIFaR1 and Sp-SIFaR2) in the...

The Chinese mitten crab (Eriocheir sinensis) is an economically important crustacean. With the development of the E. sisnensis industry, precocity has become a significant challenge in juvenile crab culturing. In this study, the eyestalks of female E. sinensis from precocious (PE) and normal juvenile (NE) groups were used for proteome and metabolom...

Oogenesis is crucial for sexual reproduction and provides the material basis for population continuation. Nonetheless, the identity of the cells involved, the nature of transformation, and underlying regulators of oogenesis in crustaceans remain elusive. Here, an atlas of the ovary is plotted via single‐nuclei RNA sequencing (snRNA‐seq) in the mud...

Antarctic krill oil has been proven to be able to promote the ovarian development of crustaceans, but its optimal application dose and potential regulatory mechanism in Macrobrachium rosenbergii are still unclear. In this study, five isonitrogenous and isolipidic diets with gradient additions of Antarctic krill oil (0%, 1.5%, 3%, 4.5%, and 6%) were...

This study compares the nutritional composition of two commercially important crustaceans, Farfantepenaeus notialis and Macrobrachium vollenhovenii, to assess their dietary suitability. Proximate and mineral analyses were performed on dried samples of each species, evaluating fat, protein, ash, moisture, and mineral concentrations. Results reveal s...

Understanding the diet variability of the White Sea wolffish, Anarhichas lupus marisalbi Barsukov, 1956, is essential for explaining its population dynamics and variations in its life cycle. This study examined the food spectrum of wolffish from the coastal waters of Chupa Inlet (Kandalaksha Bay, White Sea) and analyzed interannual and seasonal cha...

This study focuses on sedimentation patterns and paleoecological conditions during the Upper Miocene in Southeast Iran, specifically analyzing the Rudig section. The sedimentation was predominantly terrigenous and occurred in marine conditions, forming multiple shallowing upwards sequences comprising silty marl, siltstone, and sandstone. The analys...

Deep eutectic solvents (DES) represent an innovative and environmentally friendly approach for chitin isolation. Chitin is a natural nitrogenous polysaccharide, characterized by its abundance of amino and hydroxyl groups. The hydrogen bond network in DES can disrupt the crystalline structure of chitin, facilitating its isolation from bioresources b...

With the rising global demand for seafood and the challenges posed by overfishing and climate change, the aquaculture sector has become increasingly important in providing high-quality protein for human consumption. Although traditional selection breeding programs have made great strides in genetic improvement of aquaculture species over the past d...

Contamination of host DNA is a severe problem in molecular experiments on parasites. In this study, we examined a method for removing host DNA from the surface of samples using the DNA decontamination reagent DNA AWAY for DNA analysis of parasitic crustaceans, using Mothocya parvostis (Crustacea: Isopoda: Cymothoidae), and its host the Japanese hal...