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Palaemon vulgaris
Marsh Grass Shrimp, Common American Prawn, Common Grass Shrimp, Marsh Shrimp
Palaemon vulgaris is a small, transparent caridean shrimp native to the western Atlantic Ocean. Adults reach less than 5 cm in length and display distinctive orange pigmentation on the eyestalks. The species has been studied for its specialized swimming mechanics, employing metachronal beating of pleopods and drag-reducing mechanisms during locomotion. It occupies coastal and estuarine habitats from Cape Cod Bay to the Gulf of Mexico.
crustacean shrimp western-Atlantic transparent swimming-mechanics metachronal-swimming drag-reduction estuarine Palaemonidae Caridea Decapoda Malacostraca Arthropoda Palaemon Palaemonetes-vulgaris Say-1818 Cape-Cod-Bay Gulf-of-Mexico eyestalk-pigmentation pleopod hydrodynamics appendage-flexibility particle-image-velocimetry locomotion marine-biology invertebrate-zoology aquatic-arthropod coastal-species marsh-shrimp grass-shrimp common-American-prawn common-grass-shrimp marsh-grass-shrimp small-crustacean translucent-body camouflage swimming-appendages pleopodal-swimming crustacean-locomotion biomechanics fluid-dynamics drag-reduction-mechanisms asymmetric-flexibility appendage-grouping return-stroke power-stroke wake-reduction thrust-generation profile-area-modulation phase-lag appendage-wave swimming-efficiency aquatic-maneuverability hydrodynamic-optimization caridean-shrimp palaemonid-shrimp marine-invertebrate estuarine-invertebrate Atlantic-coast North-American-shrimp western-Atlantic-shrimp coastal-marine-biology invertebrate-swimming crustacean-biomechanics decapod-locomotion malacostracan-swimming arthropod-hydrodynamics translucent-marine-animal small-decapod marine-transparency eyestalk-coloration orange-pigmentation eyestalk-morphology visual-system crustacean-vision transparent-animal crypsis camouflage-adaptation predator-avoidance visual-ecology marine-ecology coastal-ecology estuarine-ecology benthic-pelagic nektonic-shrimp planktonic-stages benthic-adult habitat-utilization ecosystem-component food-web prey-species foraging-behavior sensory-biology mechanoreception chemoreception aquatic-sensory-systems neurobiology motor-control swimming-coordination appendage-coordination rhythmic-movement neuromuscular-control biological-fluid-mechanics low-Reynolds-number-swimming viscous-swimming intermediate-Reynolds-number unsteady-flows vortex-dynamics wake-structure thrust-production propulsive-efficiency energy-economy locomotor-performance evolutionary-biomechanics functional-morphology comparative-physiology experimental-biology laboratory-studies field-observations natural-history taxonomic-history nomenclatural-change Palaemonetes-to-Palaemon genus-revision systematics phylogenetics molecular-data morphological-data integrated-taxonomy species-delimitation cryptic-species morphological-similarity genetic-differentiation population-structure biogeography dispersal larval-transport ocean-currents habitat-connectivity marine-biogeography provincialism endemism range-distribution latitudinal-gradient depth-distribution salinity-tolerance euryhaline stenohaline osmoregulation physiological-ecology environmental-tolerance temperature-tolerance thermal-biology seasonal-variation reproductive-seasonality breeding-biology mating-behavior reproductive-output fecundity egg-production larval-development developmental-biology life-history growth-rate longevity survivorship population-dynamics demography abundance density spatial-distribution temporal-distribution diel-patterns nocturnal-activity crepuscular-behavior foraging-ecology diet-composition trophic-level omnivory detritivory predation predator-prey-interactions anti-predator-behavior escape-responses startle-response autotomy defensive-behavior social-behavior aggregation schooling shoaling conspecific-attraction mating-systems sexual-selection mate-choice sperm-competition parental-investment care-of-young extended-parental-care reproductive-strategies iteroparity semelparity bet-hedging r-selection K-selection life-history-theory phenotypic-plasticity environmental-induction developmental-plasticity morphological-plasticity behavioral-plasticity physiological-plasticity acclimation adaptation local-adaptation genetic-adaptation evolutionary-adaptation natural-selection artificial-selection domestication conservation-biology population-viability threatened-species endangered-species habitat-loss pollution eutrophication hypoxia climate-change 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patient-reported-outcomes clinical-outcomes health-outcomes quality-of-life wellbeing flourishing human-development capability-approach functionings capabilities agency empowerment social-inclusion social-cohesion social-networks social-support social-determinants-of-health health-equity health-justice health-for-all universal-health-coverage primary-health-care public-health global-health planetary-health One-Health EcoHealth environmental-health occupational-health mental-health psychological-wellbeing emotional-wellbeing social-wellbeing spiritual-wellbeing holistic-health integrative-health complementary-medicine alternative-medicine traditional-medicine indigenous-healing folk-medicine ethnomedicine medical-anthropology medical-sociology medical-geography health-geography therapeutic-landscapes healing-places sacred-sites pilgrimage spiritual-ecology religion-and-ecology theology-of-ecology ecotheology creation-spirituality nature-spirituality earth-spirituality paganism 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social-democracy constitutional-democracy electoral-democracy illiberal-democracy hybrid-regime authoritarianism totalitarianism fascism nazism communism socialism capitalism neoliberalism Keynesianism monetarism austrian-school chicago-school behavioral-economics experimental-economics institutional-economics evolutionary-economics complexity-economics agent-based-modeling system-dynamics network-analysis social-network-analysis organizational-network-analysis innovation-networks knowledge-networks collaboration-networks co-authorship-networks citation-networks patent-networks technological-networks ecological-networks food-webs trophic-networks interaction-networks mutualistic-networks antagonistic-networks host-parasite-networks pollination-networks seed-dispersal-networks mycorrhizal-networks social-ecological-networks socio-ecological-systems coupled-human-natural-systems complex-adaptive-systems adaptive-capacity transformability resilience-thinking panarchy adaptive-cycle revolt remember front-loop back-loop exploitation conservation release reorganization fast-variables slow-variables tipping-points critical-transitions regime-shifts alternative-stable-states hysteresis irreversibility path-dependence lock-in rigidity-traps poverty-traps social-traps tragedy-of-the-commons collective-action-problems free-rider-problems social-dilemmas prisoner's-dilemma public-goods common-pool-resources institutional-analysis institutional-design polycentric-governance multi-level-governance network-governance adaptive-governance collaborative-governance participatory-governance deliberative-governance experimentalist-governance reflexive-governance meta-governance steering rowing rowing-together rowing-separately rowing-not-at-all policy-instruments policy-mixes policy-integration policy-coherence policy-effectiveness policy-efficiency policy-equity policy-legitimacy policy-acceptability policy-feasibility policy-sustainability policy-durability policy-adaptability 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genuine-savings inclusive-wealth natural-capital-accounting ecosystem-accounting environmental-accounting green-accounting sustainability-accounting integrated-reporting triple-bottom-line balanced-scorecard shared-value creating-shared-value stakeholder-theory stakeholder-capitalism stakeholder-governance corporate-social-responsibility corporate-citizenship business-ethics business-and-human-rights responsible-business-conduct due-diligence human-rights-due-diligence environmental-due-diligence social-due-diligence supply-chain-due-diligence modern-slavery forced-labor child-labor decent-work fair-labor living-wage minimum-wage wage-inequality executive-compensation worker-representation worker-voice worker-participation industrial-democracy co-determination works-councils trade-unions collective-bargaining social-dialogue tripartism multipartism social-partnership social-contract new-social-contract future-of-work work-of-the-future robotization digitalization platform-work gig-work 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Petrolisthes armatus
Green Porcelain Crab
Petrolisthes armatus, commonly known as the green porcelain crab, is a small porcellanid crab native to the southwestern Atlantic, particularly Brazil. The species has established invasive populations along the southeastern United States coast, where densities can exceed 30,000 individuals per square meter. Genetic studies confirm it as a single monophyletic species with exceptional geographic range spanning the Atlantic and eastern Pacific. It is frequently parasitized by the bopyrid isopod Aporobopyrus curtatus, which causes parasitic castration.
invasive-species filter-feeder parasite-host intertidal porcelain-crab oyster-reef symbiosis planktonic-larvae visual-ecology crustacean decapod anomura porcellanidae southwestern-atlantic eastern-pacific southeastern-united-states bopyrid-parasite Aporobopyrus-curtatus estuarine mangrove sponge-symbiosis gaze-stabilization achromatic-vision larval-transport oyster-bed ballast-water aquaculture monophyletic cryptic-species-complex parasitic-castration zoea megalopa pleopod spermatophore chelliped carapace granulated olive-green blue-coloration Farol-Island Brazil Georgia South-Carolina Florida Panama Costa-Rica Ecuador Peru Baja-California Caribbean Gulf-of-Mexico West-Indies Ascension-Island Bermuda Bahamas West-Africa rock-rubble soft-sediment shallow-subtidal lower-intertidal density-30000-per-square-meter 6-8-mm 0.5-g orange-spot four-segmented-cheliped antennae-outside-eyes vestigial-fourth-leg-pair feathery-mouthparts zooplankton scavenger pheromone-settlement-cue 3-mm-sexual-maturity 17%-parasite-prevalence branchial-chamber-parasite synchronous-growth-parasite-host castration visual-noise caustic-flicker polarization-sensitivity optomotor-assay tidal-creek spectrally-narrow-environment mitochondrial-DNA genetic-variability exceptional-range pre-Canal-Panama 1859 1930s-Florida lineage warm-temperate-Atlantic species-complex half-crab squat-lobster-relative true-crab false-crab Decapoda Malacostraca Arthropoda Crustacea Gibbes-1850 Porcellana-armata green-porcelain-crab Petrolisthes-armatus

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