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Dietary Shifts Among the Developmental Stages of the Ectoparasite, <i>Argulus japonicus</i> (Crustacea; Branchiura), Mirror Ontogeny as Shown Through Differences in Stable Isotope Ratios of Carbon (δ¹³C) and Nitrogen (δ¹⁵N). [PDF]

Ecol Evol
Stable isotope fractionation serves as a fingerprint of nutrients assimilated by organisms. This study aimed to compare fractionation patterns of stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) among various life stages of A. japonicus infecting goldfish hosts (Carassius auratus).
Gilbert BM, Nachev M, Sures B, Avenant-Oldewage A.   +3 more
europepmc   +2 more sources

Non-gonadal expression of piRNAs is widespread across Arthropoda. [PDF]

FEBS Lett
PIWI‐interacting RNAs (piRNAs) are known to protect the germline genome from transposable elements. Recently, evidence for their non‐gonadal expression has begun to emerge in some species. In this Perspective article, we combine an extensive literature review with a large analysis of transcriptomic data across arthropod species to investigate non ...
Yamashita T, Komenda K, Miłodrowski R, Robak D, Szrajer S, Gaczorek T, Ylla G.   +6 more
europepmc   +2 more sources

Macrostylis metallicola spec. nov.—an isopod with geographically clustered genetic variability from a polymetallic-nodule area in the Clarion-Clipperton Fracture Zone [PDF]

PeerJ, 2020
Background The Clarion-Clipperton Fracture Zone (CCFZ) in the Northeast Central Pacific Ocean is a region of heightened scientific and public interest because of its wealth in manganese nodules.
Torben Riehl, Bart De Smet
doaj   +2 more sources

Are standard aquatic test species and methods adequate surrogates for use in environmental risk assessment of pesticides in tropical environments?

Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 202-212, January 2023., 2023
Abstract In regulatory risk assessment, surrogate species of fish, aquatic invertebrates, and primary producers are tested to assess toxicity and subsequently the risk of pesticides to freshwater biota. This study evaluates whether the standard, surrogate test species (mostly temperate in latitudinal distribution) used in many parts of the world are ...
Gustavo S. Santos, Mick Hamer, Alexandra Tscheschke, Eric Bruns, Lucilene Murakami, Gerhard P. Dohmen   +5 more
wiley   +1 more source

Novel RNA viruses in oysters revealed by virome

iMeta, Volume 1, Issue 4, December 2022., 2022
Eighteen novel RNA viruses were found in Crassostrea hongkongensis. Phylogenic analysis shows evidence of recombination between major genes of viruses. Picobirnaviruses are ubiquitous and abundant in oysters.
Peng Zhu, Guang‐Feng Liu, Chang Liu, Li‐Ling Yang, Min Liu, Ke‐Ming Xie, Shao‐Kun Shi, Mang Shi, Jing‐Zhe Jiang   +8 more
wiley   +1 more source

Imaging Parhyale hawaiensis embryogenesis with frequency domain photoacoustic microscopy: A novel tool in developmental biology

Journal of Biophotonics, Volume 15, Issue 12, December 2022., 2022
We introduce a novel, low‐cost photoacoustic microscope, which is capable of listening to the laser light interactions with developing embryos of Parhyale hawaiensis emerging model organism. The presented label‐free imaging approach delineates the morphological features of the specimens with high resolution and contrast specificity, shedding light on ...
George J. Tserevelakis, Sofia Velentza, Ioannis Liaskas, Themis Archontidis, Anastasios Pavlopoulos, Giannis Zacharakis   +5 more
wiley   +1 more source

Guía ilustrada para identificar los eufausiáceos (Crustacea: Malacostraca) recolectados en Cuba

Novitates Caribaea, 2022
Los crustáceos eufausiáceos constituyen un grupo de 86 especies, conocidas como krill, que en general presentan una distribución muy amplia en todos los océanos, desde las aguas superficiales hasta los grandes abismos marinos.
Manuel Ortiz
doaj   +1 more source

Non‐lethal sampling does not misrepresent trophic level or dietary sources for Sagmariasus verreauxi (eastern rock lobster)

Rapid Communications in Mass Spectrometry, Volume 37, Issue 4, 28 February 2023., 2023
Rationale Isotope analysis can be used to investigate the diets of predators based on assimilation of nitrogen and carbon isotopes from prey. Recent work has shown that tissues taken from legs, antennae or abdomen of lobsters can give different indications of diet, but this has never been evaluated for Sagmariasus verreauxi (eastern rock lobster). Work
Jeremy Karl Day, Nathan Aaron Knott, Daniel Swadling, David Ayre, Megan Huggett, Troy Gaston   +5 more
wiley   +1 more source

Zooplankton act as cruise ships promoting the survival and pathogenicity of pathogenic bacteria

Microbiology and Immunology, Volume 66, Issue 12, Page 564-578, December 2022., 2022
Abstract Bacteria in general interact with zooplankton in aquatic ecosystems. These zooplankton–bacterial interactions help to shape the bacterial community by regulating bacterial abundances. Such interactions are even more significant and crucially in need of investigation in the case of pathogenic bacteria, which cause severe diseases in humans and ...
Ishara U. Perera, So Fujiyoshi, Yukiko Nishiuchi, Toshihiro Nakai, Fumito Maruyama   +4 more
wiley   +1 more source

Quantitative indicators and trophic structure of zooplankton in different types of shallow water zone in Meshinsky Bay (Kuibyshev Reservoir)

Трансформация экосистем, 2021
The trophic structure and quantitative characteristics of zooplankton in four shallow water areas of Meshinsky Bay of Kuibyshev Reservoir were studied in the summer and autumn seasons.
Margarita A. Gvozdareva
doaj   +1 more source