Marine Ecology Progress Series

Article	Citations
Dynamics and aging of green turtle grazing plots at two Caribbean seagrass meadows	51
Using ocean gliders to characterize baleen whale habitat in the Northwest Atlantic	46
Effects of temperature, salinity, and depth on Symbiodiniaceae lineages hosted by Palythoa tuberculosa near a river mouth	40
Body condition and energy content of shore crab Carcinus maenas in a temperate coastal system: temporal variability	34
Minke whales Balaenoptera acutorostrata avoid a 15 kHz acoustic deterrent device (ADD)	33
Machine learning analysis reveals relationship between pomacentrid calls and environmental cues	32
Stable isotopes track the ontogenetic movement of three commercially important fishes along a coastal Tanzanian seascape	29
Advancing bioenergetics-based modeling to improve climate change projections of marine ecosystems	28
Spatial variation in vital rates and population growth of thick-billed murres in the Atlantic Arctic	28
Cost-effective use of aerial imagery to quantify faunal-habitat associations across multiple spatial scales	27
Trophic position of dolphins tracks recent changes in the pelagic ecosystem of the Macaronesian region (NE Atlantic)	26
A decade of modeled dispersal of Dungeness crab Cancer magister larvae in the California Current	26
Distinguishing West Florida gag (Mycteroperca microlepis) nurseries with otolith stable isotopes	24
Multi-cusped postcanine teeth are associated with zooplankton feeding in phocid seals	24
Wintering strategies of two king penguin populations of the Southern Indian Ocean	24
The sea urchin Diadema antillarum facilitates recruitment of the Critically Endangered Caribbean coral species Acropora palmata	23
Growth of spring- and autumn-spawned larvae of Atlantic herring Clupea harengus: a long-term experiment mimicking seasonal light conditions	23
Water temperature is a key driver of horizontal and vertical movements of an ocean giant, the whale shark Rhincodon typus	23
Changes in DNA methylation in response to heat stress and symbiotic conditions in coral primary polyps	22
Otolith elemental fingerprints reveal source-sink dynamics between two Greenland halibut nurseries in the St. Lawrence Estuary and Gulf	22
Detection of the Diadema antillarum scuticociliatosis Philaster clade on sympatric metazoa, plankton, and abiotic surfaces and assessment for its potential reemergence	22
Migratory behavior and maternal origin of anadromous brown trout in the Baltic Sea	22
Multi-year migrations of four coastal shark species in the southeastern USA: trends in timing and temperature	22
Behavior and inter-island movements of satellite-tagged humpback whales in Hawai’i, USA	21
Carbon budgets of copepod communities in the northern Humboldt Current System off Peru	21

Comparison of video and traps for detecting reef fishes and quantifying species richness in the continental shelf waters of the southeast USA	20
Tracking movements of decapod crustaceans: a review of a half-century of telemetry-based studies	20
Dermal denticle shedding rates vary between two captive shark species	20
Short-finned pilot whales exhibit behavioral plasticity in foraging strategies mediated by their environment	20
Seasonal variation in the phenology of Atlantic tarpon in the Florida Keys: migration, occupancy, repeatability, and management implications	19
Lingering impacts of the 2014-2016 northeast Pacific marine heatwave on seabird demography in Cook Inlet, Alaska (USA)	19
Differential response of seabird species to warm- and cold-water events in a heterogeneous cross-shelf environment in the Gulf of Alaska	19
Lethal and sublethal effects of simulated dredged sediment deposition on overwintering blue crabs Callinectes sapidus	18
Sediment microtopography predicts localised benthic ecosystem functioning and the effect of species interactions	18
Spatial variability of epi- and mesopelagic 38 kHz backscatter from nekton and macrozooplankton across the southeastern US shelf break	18
Priority effects, environmental filtering and neutral coexistence explain large- to small-scale distribution of invasive sun corals in the SW Atlantic	18
Characterising the behaviour of bait-attracted blue sharks Prionace glauca using pelagic drift video	17
Leaf-litter consumption slows crab growth but transforms mangrove food chains	17
Spawning sources of a coastal fishery species inferred from otolith chemistry and microstructure: implications for management	16
Oyster reefs as habitat for aquatic macrofauna in a Gulf of Mexico estuary: biotic complexity at spatial, ecological, and demographic scales	16
Recent divergent changes in Alaskan pinniped trophic position detected using compound-specific stable isotope analysis	16
Grazer commensalism varies across the species range edge: host chiton size influences epibiont limpet incidence and spatial segregation	16
Investigating growth and reproduction of the Mediterranean swordfish Xiphias gladius through a full life cycle bioenergetics model	16
Responses of a pelagic fish community to reduced fishing pressure in the central Bering Sea	16
Relationship between pumping rate and particle capture efficiency in three species of bivalves	16
Effects of migrating mesopelagic fishes on the biological carbon pump	15
Sea-ice and macrozooplankton distribution as determinants of top predator community structure in Antarctic winter	15
Time-series dynamics in symbiont communities of acroporid corals undergoing cold stress in winter	15
Evidence of shared trends in juvenile fish recruitment to nearshore seagrass habitats of the eastern Gulf of Mexico	15
Failure of bivalve foundation species recruitment related to trophic changes during an extreme heatwave event	15
Time-series models and biotelemetry identify behavioral dynamics within a spawning aggregation of a large marine predator	15
Ecological aspects and hydrodynamics of hitchhiking remoras Remora spp. associated with sicklefin devil rays Mobula tarapacana	15
Spatiotemporal models highlight influence of oceanographic conditions on common dolphin bycatch risk in the Bay of Biscay	15
Size-fractioned zooplankton biomass in the Barents Sea: macroecological patterns across biogeography, climate, and varying ecosystem state (1989-2020)	15
Discovery and dynamics of a cryptic marine copepod-parasite interaction	15
Wave exposure influences kelp morphological and biomechanical phenotypic plasticity	15
Both wind and flying with conspecifics influence the flight dynamics of a seabird	15
Expanding on a marine food web using parasitological data	15
Physiological responses of the symbiotic octocoral Muricea laxa to dynamic thermal conditions	14
Interactions between anchovy fisheries and Peruvian boobies revealed by bird-borne cameras and movement loggers	14
Role of crab holobionts in benthic N cycling in mangroves with different trophic status	14
Spawning migration and larval dispersal of tropical Pacific eels (Anguilla spp.) in the centre of their distribution ranges	14
Trophic ecology, based on stable isotope values, of long-finned pilot whales Globicephala melas stranded on the Icelandic coast	14
Food selectivity, diel feeding, and effect of light intensity on prey consumption, growth and survival of yellowfin tuna Thunnus albacares larvae	14
Tracking the movements of North Atlantic seabirds: steps towards a better understanding of population dynamics and marine ecosystem conservation	14
Using stable isotope chronologies within squid gladii (Doryteuthis gahi) to evaluate dietary differences by fishing region and season	14
Linking ecosystem pressures and marine macroinvertebrate ecosystem services in mangroves and seagrasses	14
Predatory impact on ichthyoplankton by Mnemiopsis leidyi (Ctenophora) is size-dependent: an experimental approach	13
Calcified coralline algae have similar caloric value to uncalcified algae	13
Climate-induced changes in ocean productivity and food-web functioning are projected to markedly affect European fisheries catch	13
Sea cage aquaculture may provide an energetic subsidy to wild juvenile cod in coastal bays of southern Newfoundland, Canada	13
Effects of egg mass and local climate on morphology of East Pacific leatherback turtle Dermochelys coriacea hatchlings in Costa Rica	13
Extreme dietary specialisation in adult male southern elephant seals: determining variation between individual trophic diets	13
Microbiome environmental shifts differ between two co-occurring octocoral hosts	13
Patterns in macrobenthic diversity in the lower shore of northeastern Atlantic macrotidal sandy beaches	13

Effect of sea cage aquaculture on the length, weight, and condition of wild Atlantic cod Gadus morhua	13
Effect of diet composition and temperature on the gastric evacuation rate of European sardine: implication for egg predation estimates	13
Quantifying sponge host and microbial symbiont contribution to dissolved organic matter uptake through cell separation	13
Inshore juvenile lobsters threatened by warming waters and migratory fish predators in southern New England	13
DNA analysis of scats reveals spatial and temporal structure in the diversity of harbour seal diet from local haulouts to oceanographic bioregions	13
Energy allocation trade-offs between life-history traits in the Mediterranean sardine: an ecophysiological approach	13
Divergent learning responses to a spatially consistent olfactory stimulus in two reef shark species	13
Blue mussels in western Norway have vanished where in reach of crawling predators	13
Prevalence of microplastics and anthropogenic debris within a deep-sea food web	13
Predation refuge values of marsh and mangrove vegetation for the marsh periwinkle Littoraria irrorata	13
Larvae from three Caribbean corals settle differently in response to crustose coralline algae and their bacterial communities	13
Distinct natal origins based on vertebral ring analysis corroborate the migration pattern of Pacific bluefin tuna in the North Pacific Ocean	13
Migration timing affects the foraging ecology of Fraser River sockeye salmon stocks in coastal waters of British Columbia, Canada	12
Impact of ocean carbonation on long-term regulation of light harvesting in eelgrass Zostera marina	12
High incidence of partial colony mortality constrains realized growth for three coral species in southeast Florida	12
From fringe to basin: unravelling the survival strategies of Calanus hyperboreus and C. glacialis in the Arctic Ocean	12
Examining the accuracy of ROV-based biodiversity surveys in remote, shallow coral reef habitats	12
Timing mussel deployments to improve reintroduction success and restoration efficiency	12
Ecological mechanisms generating variable first-year growth in Paralichthys lethostigma, a coastal flatfish	12
Ocean acidification reduces the growth of two Southern Ocean phytoplankton	12
Impacts of thermal effluent on Posidonia oceanica and associated macrofauna	12
Combined impacts of natural recruitment and active propagation for coral population recovery on the Great Barrier Reef	12
Migration, aggregation, and philopatry of two nearshore elasmobranch species in the Southern California Bight	12
Antarctic krill Euphausia superba: spatial distribution, abundance, and management of fisheries in a changing climate	12
Bycatch in the West Greenland lumpfish fishery, with particular focus on the common eider population	12
Trophic ecology of Carolina Sphyrna gilberti and scalloped S. lewini hammerheads in the southeastern USA	12
Direct and indirect pathways for environmental drivers of hatching success in the loggerhead sea turtle	12
Seasonal changes in facilitation between an ascidian and a kelp in Patagonia	12
Environmental predictors of sediment denitrification rates within restored green-lipped mussel Perna canaliculus beds	12
The diversity of demersal assemblages of the western English Channel and the Celtic Sea	11
CORRECTION: A generic approach to develop a trait-based indicator of trawling-induced disturbance	11
Phytoplankton size structures and their interactive effects with nutrient conditions on sinking rates in a mariculture system	11
Microbial respiration in the asteroid diffusive boundary layer influenced sea star wasting disease during the 2013-2014 northeast Pacific Ocean mass mortality event	11
Within- and among-colony variation in non-breeding dispersion of Magellanic penguins breeding along the coast of Argentina	11
Thermal tolerance differs between co-occurring congeneric beetle species in marine supratidal rockpools	11
Intra- and inter-annual shifts in foraging tactics by parental northern gannets Morus bassanus indicate changing prey fields	11
Sentinels of change: divergence in trophic niche of New Zealand sea lions and fur seals from first human contact to today	11
Assessing the demographic connectivity of common cockles in a shallow estuary as a basis for fisheries management and stock protection efforts	11
CORRIGENDUM: Stock structure and effective population size of the commercially exploited gummy shark Mustelus antarcticus	11
Migration and space use by porbeagle sharks Lamna nasus in the northeast Atlantic	11
Hotspot areas of marine introduced species in the Southwestern Atlantic	11
Similar breeding performance despite inter-annual differences in diet composition of seabirds inhabiting a tropical environment	11
Zooplankton trophic structure and ecosystem productivity	11
Functional thermal limits are determined by rate of warming during simulated marine heatwaves	11
Habitat-based density models of pack-ice seal distribution in the southern Weddell Sea, Antarctica	11
Bentho-pelagic mismatches in intertidal sandflats in relation to seasonal upwelling: the role of endobenthic ecosystem engineering	11
Correction: Behavior and inter-island movements of satellite-tagged humpback whales in Hawai’i, USA	11
Microbial structural shifts and enhanced carbon metabolism following coral restoration on Wuzhizhou Island: insights from seawater and sediment microbiomes	11
Oceanic migration routes and behaviour of the New Zealand longfin eel Anguilla dieffenbachii	11
Gannets wintering in the Canary Current and Iberian Coast feed primarily on pelagic fishes and co-occur with trawl and fixed gear fisheries	11
Atlantic inflow is the primary driver of remotely sensed autumn blooms in the Barents Sea	11
Movements of the endangered sei whale (Balaenoptera borealis) in the southwestern Atlantic Ocean	10
CORRECTION: Compound-specific isotope analysis of amino acids reveals dependency on grazing rather than detritivory in mangrove food webs	10
Shifting temperature-abundance relationship for Bering Sea walleye pollock consistent with northward expansion during exceptionally warm conditions	10
Changes in fish assemblages after marine heatwave events in West Hawai‘i Island	10
Historic dispersal barriers determine genetic structure and connectivity in a supratidal sandy-beach brooder	10
Evaluating the time to detect biological effects of ocean acidification and warming: an example using simulations of purple sea urchin settlement	10
Assessing the effectiveness of DNA barcoding for exploring hidden genetic diversity in deep-sea fishes	10
Assessing marine ecosystem complexity: isotopic integration of the trophic structure of seabird communities from the Southern Ocean	10
Trophic structure and resource utilization of the coastal fish community in the western Wadden Sea: evidence from stable isotope data analysis	10
Diet and feeding strategies of myctophids in the Northeast Atlantic	10
Nutrient enrichment can increase the thermal performance of Galápagos seaweeds	10
Antipredatory strategies of leatherback sea turtles during internesting intervals on St. Croix, US Virgin Islands	10
Offshore behavioral contingent of an estuarine fish population, common snook Centropomus undecimalis	10
Drivers of coral mortality in non-acute disturbance periods	10
Macrocystis pyrifera forest development shapes the physical environment through current velocity reduction	10
Three centuries of biogeochemical change in a temperate embayment as revealed by sediment core stable isotopes, radiometric dating, and historical ecology	10
Effect of tidal resuspension with oyster biodeposits on nutrient and oxygen dynamics	10
Six pelagic seabird species of the North Atlantic engage in a fly-and-forage strategy during their migratory movements	10
Origins of natural and anthropogenic sounds in a coastal, seasonally ice-covered, Antarctic marine soundscape	10
CORRECTION: American lobster Homarus americanus responses to construction and operation of an offshore wind farm in southern New England	10
Spatio-temporal variability in the deposition of beach-cast kelp (wrack) and inter-specific differences in degradation rates	10
Shy albatross Thalassarche cauta chick mortality and heat stress in a temperate climate	10
Long-term data reveal greater intertidal oyster biomass in predicted suitable habitat	10
Characterization and spatial variation of the deep-sea fish assemblages on Pioneer Bank, Northwestern Hawaiian Islands	10
Spatial and temporal variability of green turtle and dugong herbivory in seagrass meadows of the southern Great Barrier Reef (GBR)	10
Using functional diversity to assess fish community susceptibility to multi-species coastal gillnetting in the East and South Brazilian Shelves	10
Blue carbon stocks and cycling in tropical tidal marshes facing grazing pressure	10
Variability in Zostera marina wrack greenhouse gas emissions on a temperate sandy beach	10
Effects of wind on the movement, behavior, energetics, and life history of seabirds	9

Inducible defenses in an estuarine bivalve do not alter predator handling times and are not affected by climate change	9
Autumn coral bleaching in Hawai‘i	9
Patterns, efficiency and ecosystem effects when fishing Calanus finmarchicus in the Norwegian Sea—using an individual-based model	9
Effects of increasing temperature on the photosynthetic activity and oxygen balance of sheath-covered seagrass Zostera marina seeds	9
Year-to-year density fluctuations in clams Ruditapes philippinarum linked to wind-induced disturbance during juvenile to subadult stages	9
Bottom temperature warming and its impact on demersal fish off the Pacific coast of northeastern Japan	9
Daylength influences reproductive success and sporophyte growth in the Arctic kelp species Alaria esculenta	9
Simulating fish population responses to elevated CO2: a case study using winter flounder	9
Diverse stability responses of a sub-Antarctic invertebrate understorey community to experimental giant kelp removal	9
Phoretic sharksuckers Echeneis naucrates associated with an elasmobranch host occupy higher relative trophic positions	9
Increased temperature reduces the positive effect of sulfide-detoxification mutualism on Zostera noltii nutrient uptake and growth	9
Clear-cut wave height thresholds reveal dominance shifts in assemblage patterns on rocky shores	9
Distributions of threatened skates and commercial fisheries inform conservation hotspots	9
Thermally insensitive physiological performance allows neonatal sharks to use coastal habitats as nursery areas	9
Stable isotope record from a resident New Zealand seabird community suggests changes in distribution but not trophic position since 1878	9
Trade-offs in prey quantity and quality in gray whale foraging	9
Seasonal and interannual changes in a coastal Antarctic zooplankton community	9
Contrasting ontogenetic shifts in habitat and metabolism of three sympatric key deep-sea fishes	9
Evidence of shifts in habitat use of two snappers (Lutjanidae) in a tropical estuarine bay subjected to seasonal upwelling	9
Northwest range shifts and shorter wintering period of an Arctic seabird in response to four decades of changing ocean climate	9
Spatial assessment of albatrosses, commercial fisheries, and bycatch incidents on Canada’s Pacific coast	9
Seabird responses to ecosystem changes driven by marine heatwaves in a warming Arctic	9
Searching on the edge: dynamic oceanographic features increase foraging opportunities in a small pelagic seabird	9
Luck and tactics in foraging success: the case of the imperial shag	9
Brood-grooming behavior of American lobsters Homarus americanus in conditions of ocean warming and acidification	9
Maintenance of long-term equilibrium in a perturbed metacommunity of sub-arctic marine fishes	9
The neglected role of omnivore fish in the overgrazing of Mediterranean rocky reefs	9
Landscape-scale variation in a sulfur-based sediment stress indicator for the seagrass Thalassia testudinum in Florida Bay, USA	9
A systematic review of the current state of marine functional connectivity research	9
Different resiliencies in coral communities over ecological and geological time scales in American Samoa	9
Greater exposure of nearshore habitats in the Bering Sea makes fish early life stages vulnerable to climate change	9
Associations between timing and magnitude of spring blooms and zooplankton dynamics in the southwestern Barents Sea	9
Intraspecific variation in seagrass anti-herbivore defenses along a natural gradient in phosphorus availability impacts herbivore feeding decisions	9
Genetic population structure and demographic history of the sailfin sandfish Arctoscopus japonicus associated with sea level changes during the Last Glacial Maximum	9
Subantarctic front variability: a potential driver of Patagonian scallop (Zygochlamys patagonica) recruitment fluctuations	8
Non-trophic interactions amplify kelp harvest-induced biomass oscillations and biomass changes in a kelp forest ecological network model	8
Benthic modification and biotic associations at natural and artificial habitats excavated by Epinephelus morio and Lutjanus campechanus	8
Potential climate-driven changes to seabird demography: implications for assessments of marine renewable energy development	8
Marine bird mass mortality events as an indicator of the impacts of ocean warming	8
Urban sharks: residency patterns of marine top predators in relation to a coastal metropolis	8
Influences of environmental and individual-level covariates on movement behaviour in American lobster Homarus americanus	8
Effects of sea ice cover, temperature and predation on the stock dynamics of the key Arctic fish species polar cod Boreogadus saida	8
Phenotypic plasticity expands oyster survival and realized niche space across tidal elevations	8
Lipid markers and compound-specific carbon isotopes as diet and biosynthesis reflectors in the northern Neptune whelk Neptunea heros	8
Influence of extreme cold and warm oceanographic events on larval fish assemblages in the southern region of the California Current	8
Photosynthetic pigments of co-occurring Northeast Atlantic Laminaria spp. are unaffected by decomposition	8
Effects of food supply on northern bay scallops Argopecten irradians reared under two pCO2 conditions	8
Advancing research in marine functional connectivity for improved policy and management	8
Depth and substrate type influence community structure and diversity of wood and whale-bone habitats on the deep NE Pacific margin	8
Fat dynamics at the onset of sexual maturation in Atlantic herring Clupea harengus: the dual-fuel powering used by “maatjes” herring	8
Freshening of Great Barrier Reef waters is deleterious for larval crown-of-thorns starfish, counter to the terrestrial runoff hypothesis	8
Juvenile growth deficit as an early alert of cockle Cerastoderma edule mortality	8
Laysan albatross exhibit complex behavioral plasticity in the subtropical and subarctic North Pacific Ocean	8
Habitat use of adult Pacific bluefin tuna Thunnus orientalis during the spawning season in the Sea of Japan: evidence for a trade-off between thermal preference and reproductive activity	8
Fish size spectra from imaging sonar reveal variation in habitat use across nearshore coastal ecosystems	8
Mangrove-driven acidification and shell dissolution on intertidal oyster reefs in a subtropical estuary	8
Subtidal temperate reefs in marginal seas enhance biodiversity, food web complexity, and ecosystem stability	8
Microbial-driven impact on aquatic phosphate fluxes in a coastal peatland	8
Fatty acid profiles of mackerel icefish Champsocephalus gunnari reflect diet variability of its main prey, Antarctic krill Euphausia superba	8
Sub-lethal and lethal effects of chronic and extreme multiple stressors on a critical New Zealand bivalve under hypoxia	8
Nearshore fish abundance in an urban estuary is weakly associated with shoreline conditions across spatial scales	8
Testing macroecological hypotheses in sandy beach populations: the wedge clam Donax hanleyanus in South America	7
Use and prevalence of novel bubble-net foraging strategy in Western Antarctic humpback whales	7
CORRIGENDUM: Impacts of overfishing and sedimentation on the feeding behavior and ecological function of herbivorous fishes in coral reefs	7
Bioenergetic model and specific growth rates of jellyfish Aurelia spp	7
Sensitivity of the fish community to different prey fields and importance of spatial-seasonal patterns	7
ERRATUM: Maternal foraging trip duration as a population-level index of foraging and reproductive success for the northern fur seal	7
Growth and survival dynamics of mesophotic coral juveniles in shallow reefs	7
Low light exacerbates effects of marine heatwaves on seaweeds	7
Pre-industrial ecology and foraging behavior of swordfish Xiphias gladius in the eastern North Pacific	7
Diel fish migration facilitates functional connectivity of coral reef and seagrass habitats via transport of ectoparasites	7
Resilience of coastal marine metacommunities to increasing hydraulic connectivity	7
Subcuticular and biofilm microbiomes in Holothuria tubulosa and their potential for denitrification	7
Glimpsing the 2020 spring bloom in the Strait of Georgia (Canada) with autonomous ferry-based sensors	7
Trophic ecology of juvenile green turtles in the Southwestern Atlantic Ocean: insights from stable isotope analysis and niche modelling	7
CORRIGENDUM: Trophic position of dolphins tracks recent changes in the pelagic ecosystem of the Macaronesian region (NE Atlantic)	7
Trophic ecology of an abundant kelp forest echinoderm, the bat star Patiria miniata	7
Shark depredation in a commercial trolling fishery in sub-tropical Australia	7
Long-term monitoring of benthic communities reveals spatial determinants of disturbance and recovery dynamics on coral reefs	7
Trophic stability and change across a sea ice cover gradient on the western Antarctic Peninsula	7
Evidence of likely foraging by pygmy blue whales in the Timor Trough during the late austral winter and early austral spring	7
Acoustic characterization of juvenile Pacific salmon distributions along an eco-engineered seawall	7
Validating the use of bulk tissue stable isotope and amino acid δ15N values measured in molted hair and epidermis of elephant seals to assess temporal foraging niche specialization	7
Invertebrate communities on shipwrecks in Stellwagen Bank National Marine Sanctuary	7
Integrated population model reveals human and environment driven changes in Baltic ringed seal Pusa hispida botnica demography and behavior	7
Growth and mortality rates of picophytoplankton in the Baltic Sea Proper	7
Tidal water exchange drives fish and crustacean abundances in salt marshes	7
High CO2 inhibits substratum exploration and settlement of coral larvae	7
Survival of Atlantic salmon and sea trout smolts in transitional waters	7
Benthic fauna along sandy beaches enriched by metals after mining disaster	7
Hyperdominance and habitat composition drive reef fish foraging at Atlantic oceanic islands	7
CORRECTION: Larval connectivity for European green crab management in the Salish Sea and surrounding waters	7
Visual habitat selection by juvenile fish in response to seagrass with different structural complexity	7
Land-dependent marine species face climate-driven impacts on land and at sea	7
Lipids in meso- and bathypelagic fishes from the North Atlantic Ocean: dietary inputs suggested from fatty acid trophic markers	7