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Article
Open AccessInteractive responses to temperature and salinity in larvae of the Asian brush-clawed crab Hemigrapsus takanoi: relevance for range expansion into the Baltic Sea, in the context of climate change
We studied the potential of a recently introduced species, the Asian brush-clawed crab (Hemigrapsus takanoi), to expand its distribution range further into the Baltic Sea. H. takanoi has been documented in the so...
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Article
Open AccessQuantifying the portfolio of larval responses to salinity and temperature in a coastal-marine invertebrate: a cross population study along the European coast
Species’ responses to climate change may vary considerably among populations. Various response patterns define the portfolio available for a species to cope with and mitigate effects of climate change. Here, w...
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Article
Open AccessFunctional morphology of the primary olfactory centers in the brain of the hermit crab Coenobita clypeatus (Anomala, Coenobitidae)
Terrestrial hermit crabs of the genus Coenobita display strong behavioral responses to volatile odors and are attracted by chemical cues of various potential food sources. Several aspects of their sense of aerial...
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Protocol
Immunolocalization of Neurotransmitters and Neuromodulators in the Develo** Crayfish Brain
In the field of neurosciences, the crayfish nervous system is an important model for understanding how arthropods process sensory stimuli and generate specific behaviors. Furthermore, crayfish embryos have bee...
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Article
Open AccessThe “amphi”-brains of amphipods: new insights from the neuroanatomy of Parhyale hawaiensis (Dana, 1853)
Over the last years, the amphipod crustacean Parhyale hawaiensis has developed into an attractive marine animal model for evolutionary developmental studies that offers several advantages over existing experiment...
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Article
Unmasking intraspecific variation in offspring responses to multiple environmental drivers
Understanding organismal responses to environmental drivers is relevant to predict species capacities to respond to climate change. However, the scarce information available on intraspecific variation in the r...
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Article
Open AccessAn atlas of larval organogenesis in the European shore crab Carcinus maenas L. (Decapoda, Brachyura, Portunidae)
The life history stages of brachyuran crustaceans include pelagic larvae of the Zoea type which grow by a series of moults from one instar to the next. Zoeae actively feed and possess a wide range of organ sys...
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Article
Brain architecture of the Pacific White Shrimp Penaeus vannamei Boone, 1931 (Malacostraca, Dendrobranchiata): correspondence of brain structure and sensory input?
Penaeus vannamei (Dendrobranchiata, Decapoda) is best known as the “Pacific White Shrimp” and is currently the most important crustacean in commercial aquaculture worldwide. Although the ...
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Article
Open AccessOn the sighted ancestry of blindness – exceptionally preserved eyes of Mesozoic polychelidan lobsters
Modern representatives of Polychelida (Polychelidae) are considered to be entirely blind and have largely reduced eyes, possibly as an adaptation to deep-sea environments. Fossil species of Polychelida, howeve...
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Article
Neuroanatomy of the optic ganglia and central brain of the water flea Daphnia magna (Crustacea, Cladocera)
We reveal the neuroanatomy of the optic ganglia and central brain in the water flea Daphnia magna by use of classical neuroanatomical techniques such as semi-thin sectioning and neuronal backfilling, as well as i...
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Article
Heading which way? Y-maze chemical assays: not all crustaceans are alike
In a world full of chemicals, many crustaceans rely on elaborate olfactory systems to guide behaviors related to finding food or to assess the presence of conspecifics and predators. We analyzed the responses ...
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Chapter
“Crustacea”: Decapoda – Astacida
Thomas Henry Huxley, now often remembered as “Darwin’s bulldog”, wrote an entire book dedicated to crayfish, with no less a goal than showing how the study of crayfish could teach the reader all of zoology: “h...
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Chapter
Chaetognatha
According to palaeontological evidence, the Chaetognatha (arrow worms), a group of small marine predators that are major components of the zooplankton throughout our world oceans, were present already in the E...
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Article
Immunohistochemical and ultrastructural studies on ciliary sense organs of arrow worms (Chaetognatha)
We examined epibenthic and pelagic species of Chaetognatha (Spadellidae and Sagittidae) using immunohistofluorescence and confocal laser scanning microscopy to detect tubulin and cell nuclei in whole-mount pre...
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Article
Open AccessSerotonin-immunoreactive neurons in the ventral nerve cord of Remipedia (Crustacea): support for a sister group relationship of Remipedia and Hexapoda?
Remipedia were initially seen as a primitive taxon within Pancrustacea based on characters considered ancestral, such as the homonomously segmented trunk. Meanwhile, several morphological and molecular studies...
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Chapter
Architectural Principles and Evolution of the Arthropod Central Nervous System
This is an exciting time for arthropod neuroanatomists! A wealth of reviews, special issues, book chapters, and entire book volumes published during the last 10 years shows the unbroken interest in and enthusi...
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Article
Open AccessNeuropeptide complexity in the crustacean central olfactory pathway: immunolocalization of A-type allatostatins and RFamide-like peptides in the brain of a terrestrial hermit crab
In the olfactory system of malacostracan crustaceans, axonal input from olfactory receptor neurons associated with aesthetascs on the animal’s first pair of antennae target primary processing centers in the me...
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Article
Open AccessSerotonin immunoreactive interneurons in the brain of the Remipedia: new insights into the phylogenetic affinities of an enigmatic crustacean taxon
Remipedia, a group of homonomously segmented, cave-dwelling, eyeless arthropods have been regarded as basal crustaceans in most early morphological and taxonomic studies. However, molecular sequence informatio...
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Article
Comparative brain architecture of the European shore crab Carcinus maenas (Brachyura) and the common hermit crab Pagurus bernhardus (Anomura) with notes on other marine hermit crabs
The European shore crab Carcinus maenas and the common hermit crab Pagurus bernhardus are members of the sister taxa Brachyura and Anomura (together forming the taxon Meiura) respectively. Both species share simi...
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Article
Open AccessNeurogenesis in the central olfactory pathway of adult decapod crustaceans: development of the neurogenic niche in the brains of procambarid crayfish
In the decapod crustacean brain, neurogenesis persists throughout the animal's life. After embryogenesis, the central olfactory pathway integrates newborn olfactory local and projection interneurons that repla...
