keyword
MENU ▼
Read by QxMD icon Read
search

Gulf of mexico

keyword
https://www.readbyqxmd.com/read/28088368/pollutants-and-biomarker-responses-in-two-reef-fish-species-haemulon-aurolineatum-and-ocyurus-chrysurus-in-the-southern-gulf-of-mexico
#1
Gerardo Gold-Bouchot, J Rubio-Piña, J Montero-Muñoz, N Ramirez-Miss, A Echeverría-García, V Patiño-Suarez, C A Puch-Hau, O Zapata-Pérez
The environmental quality differences between two groups of reefs in the Veracruz Reef System were evaluated. The North group of reefs is very close to Veracruz, an urban and port zone, whereas the South group is more isolated, with minor anthropogenic disturbances. To prove the hypothesis that the North group is more affected by anthropogenic activities, the concentrations of hydrocarbons in liver, metals and metalloids such as Se, As, Ba, Cd, Hg and V in muscle, and PAH metabolites in bile were evaluated, and related to biomarkers (transcript abundance of cytochrome P4501A, Vitellogenin, and Glutathione-S-transferase) in two species of fish: Haemulon aurolineatum and Ocyurus chysurus...
January 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28073547/morphology-molecular-phylogeny-and-azaspiracid-profile-of-azadinium-poporum-dinophyceae-from-the-gulf-of-mexico
#2
REVIEW
Zhaohe Luo, Bernd Krock, Kenneth Neil Mertens, Andrea Michelle Price, Robert Eugene Turner, Nancy N Rabalais, Haifeng Gu
Azadinium poporum produces a variety of azaspiracids and consists of several ribotypes, but information on its biogeography is limited. A strain of A. poporum (GM29) was incubated from a Gulf of Mexico sediment sample. Strain GM29 was characterized by a plate pattern of po, cp, x, 4', 3a, 6″, 6C, 5S, 6‴, 2⁗, a distinct ventral pore at the junction of po and the first two apical plates, and a lack of an antapical spine, thus fitting the original description of A. poporum. The genus Azadinium has not been reported in waters of the United States of America before this study...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073459/vertical-migration-of-karenia-brevis-in-the-northeastern-gulf-of-mexico-observed-from-glider-measurements
#3
Chuanmin Hu, Brian B Barnes, Lin Qi, Chad Lembke, David English
The toxic marine dinoflagellate, Karenia brevis (the species responsible for most of red tides or harmful algal blooms in the Gulf of Mexico), is known to be able to swim vertically to adapt to the light and nutrient environments, nearly all such observations have been made through controlled experiments using cultures. Here, using continuous 3-dimensional measurements by an ocean glider across a K. brevis bloom in the northeastern Gulf of Mexico between 1 and 8 August 2014, we show the vertical migration behavior of K...
September 2016: Harmful Algae
https://www.readbyqxmd.com/read/28043007/molecular-and-morphological-investigations-of-the-stauros-bearing-raphid-pennate-diatoms-bacillariophyceae-craspedostauros-e-j-cox-and-staurotropis-t-b-b-paddock-and-their-relationship-to-the-rest-of-the-mastogloiales
#4
Matt P Ashworth, Christopher S Lobban, Andrzej Witkowski, Edward C Theriot, Meeshal J Sabir, Mohammad N Baeshen, Nahid H Hajarah, Nabih A Baeshen, Jamal S Sabir, Robert K Jansen
Several lineages of raphe-bearing diatoms possess a "stauros," which is a transverse, usually thickened area free of pores across the center of the valve. It has been suggested that this structure has evolved several times across the raphid diatoms, but we have noticed similarities beyond the stauros between two marine genera-Craspedostauros and Staurotropis-in the structure of their pore occlusions. We have isolated, cultured and extracted DNA from several strains of both genera to infer the phylogenetic relationship between these taxa, as well as test the suggested relationship of Craspedostauros to Achnanthes and Mastogloia based on plastid morphology...
November 17, 2016: Protist
https://www.readbyqxmd.com/read/28025743/relationship-between-organochlorine-pesticides-and-stress-indicators-in-hawksbill-sea-turtle-eretmochelys-imbricata-nesting-at-punta-xen-campeche-southern-gulf-of-mexico
#5
Nelly Tremblay, Alejandro Ortíz Arana, Mauricio González Jáuregui, Jaime Rendón-von Osten
Data on the impact of environmental pollution on the homeostasis of sea turtles remains scarce, particularly in the Southern Gulf of Mexico. As many municipalities along the coastline of the Yucatan Peninsula do not rely on a waste treatment plant, these organisms could be particularly vulnerable. We searched for relationships between the presence of organochlorine pesticides (OCP) and the level of several oxidative and pollutant stress indicators of the hawksbill sea turtle (Eretmochelys imbricata) during the 2010 nesting season at Punta Xen (Campeche, Mexico)...
December 26, 2016: Ecotoxicology
https://www.readbyqxmd.com/read/28024843/comparison-of-organochlorine-and-pahs-residues-in-terns-eggs-from-two-natural-protected-areas-in-the-gulf-of-mexico
#6
Adriana Vallarino, Jaime Rendon von Osten
Persistent organic pollutants (POPs) are dispersed all over the world while polycyclic aromatic hydrocarbons (PAHs) are released into the environment from pyrogenic and petrogenic sources and are not very mobile or persistent. The aim of this study was to identify POPs and PAHs from eggs of Least and Sooty Terns nesting in two protected marine areas with different anthropogenic impacts in the southern Gulf of Mexico. ΣHCHs were higher in Terminos in 2010 and higher in Alacranes in 2011. ΣDienes and ΣDDTs were higher in 2011 in both study sites...
December 23, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27994146/persistence-and-biodegradation-of-oil-at-the-ocean-floor-following-deepwater-horizon
#7
Sarah C Bagby, Christopher M Reddy, Christoph Aeppli, G Burch Fisher, David L Valentine
The 2010 Deepwater Horizon disaster introduced an unprecedented discharge of oil into the deep Gulf of Mexico. Considerable uncertainty has persisted regarding the oil's fate and effects in the deep ocean. In this work we assess the compound-specific rates of biodegradation for 125 aliphatic, aromatic, and biomarker petroleum hydrocarbons that settled to the deep ocean floor following release from the damaged Macondo Well. Based on a dataset comprising measurements of up to 168 distinct hydrocarbon analytes in 2,980 sediment samples collected within 4 y of the spill, we develop a Macondo oil "fingerprint" and conservatively identify a subset of 312 surficial samples consistent with contamination by Macondo oil...
January 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27988743/a-description-of-two-new-species-of-the-genus-i-erenna-i-siphonophora-%C3%A2-physonectae-erennidae-with-notes-on-recently-collected-specimens-of-other-i-erenna-i-species
#8
P R Pugh, S H D Haddock
Two new Erenna species, E. insidiator sp. nov. and E. sirena sp. nov., are described from specimens collected in the vicinity of Monterey Bay, California, and also, for E. sirena at the southern end of the Gulf of California, Mexico. Further information on the three extant Erenna species is given, based on specimens collected in the same areas. These have enabled, for instance, the identification of three types of tentilla on the tentacles of E. cornuta Pugh, 2001, rather than the two noted on the single previously known specimen...
November 10, 2016: Zootaxa
https://www.readbyqxmd.com/read/27988661/lucinid-bivalves-of-guadeloupe-diversity-and-systematics-in-the-context-of-the-tropical-western-atlantic-mollusca-bivalvia-lucinidae
#9
Ohn D Taylor, Emily A Glover
Intensive sampling of molluscs from the intertidal to depths of 800 m around the islands of Guadeloupe in the Lesser Antilles (KARUBENTHOS 2012, 2015) recovered 25 species of Lucinidae. All the Guadeloupe species are described and illustrated including details of larval shells and the taxonomy revised within the context of the wider western Atlantic fauna and recent classifications. Concurrent molecular analysis has helped separate frequently confounded species. 'Myrtea' pristiphora is placed in the Leucosphaerine genus Myrtina previously known from the Indo-West Pacific...
November 23, 2016: Zootaxa
https://www.readbyqxmd.com/read/27942769/sublethal-toxicity-of-crude-oil-exposure-in-the-blue-crab-callinectes-sapidus-at-two-life-history-stages
#10
Sarah M Giltz, Caz M Taylor
The 2010 Deepwater Horizon oil spill occurred during peak spawning season for many Gulf of Mexico fish and invertebrates. Early life stages of important fishery species were at risk to encounter crude oil. In this study, we investigated the effect of crude oil exposure on two life stages of the blue crab (Callinectes sapidus). We tested the effects of oil exposure on the survival and growth of larval (pelagic) and juvenile (estuarine) blue crabs as well as the effects of oil on the molt frequency of juveniles...
December 10, 2016: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/27936184/freshwater-detention-by-oyster-reefs-quantifying-a-keystone-ecosystem-service
#11
David A Kaplan, Maitane Olabarrieta, Peter Frederick, Arnoldo Valle-Levinson
Oyster reefs provide myriad ecosystem services, including water quality improvement, fisheries and other faunal support, shoreline protection from erosion and storm surge, and economic productivity. However, their role in directing flow during non-storm conditions has been largely neglected. In regions where oyster reefs form near the mouth of estuarine rivers, they likely alter ocean-estuary exchange by acting as fresh water "dams". We hypothesize that these reefs have the potential to detain fresh water and influence salinity over extensive areas, thus providing a "keystone" ecosystem service by supporting estuarine functions that rely on the maintenance of estuarine (i...
2016: PloS One
https://www.readbyqxmd.com/read/27931389/effects-of-pollution-on-marine-organisms
#12
Alan J Mearns, Donald J Reish, Philip S Oshida, Ann Michelle Morrison, Mary Ann Rempel-Hester, Courtney Arthur, Nicolle Rutherford, Rachel Pryor
This review covers selected 2015 articles on the biological effects of pollutants and human physical disturbances on marine and estuarine plants, animals, ecosystems and habitats. The review, based largely on journal articles, covers field and laboratory measurement activities (bioaccumulation of contaminants, field assessment surveys, toxicity testing and biomarkers) as well as pollution issues of current interest including endocrine disrupters, emerging contaminants, wastewater discharges, dredging and disposal, etc...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27920953/age-growth-and-population-structure-of-invasive-lionfish-pterois-volitans-miles-in-northeast-florida-using-a-length-based-age-structured-population-model
#13
Eric G Johnson, Mary Katherine Swenarton
The effective management of invasive species requires detailed understanding of the invader's life history. This information is essential for modeling population growth and predicting rates of expansion, quantifying ecological impacts and assessing the efficacy of removal and control strategies. Indo-Pacific lionfish (Pterois volitans/miles) have rapidly invaded the western Atlantic, Gulf of Mexico and Caribbean Sea with documented negative impacts on native ecosystems. To better understand the life history of this species, we developed and validated a length-based, age-structured model to investigate age, growth and population structure in northeast Florida...
2016: PeerJ
https://www.readbyqxmd.com/read/27914405/delphinid-echolocation-click-detection-probability-on-near-seafloor-sensors
#14
Kaitlin E Frasier, Sean M Wiggins, Danielle Harris, Tiago A Marques, Len Thomas, John A Hildebrand
The probability of detecting echolocating delphinids on a near-seafloor sensor was estimated using two Monte Carlo simulation methods. One method estimated the probability of detecting a single click (cue counting); the other estimated the probability of detecting a group of delphinids (group counting). Echolocation click beam pattern and source level assumptions strongly influenced detectability predictions by the cue counting model. Group detectability was also influenced by assumptions about group behaviors...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27905559/sailfish-migrations-connect-productive-coastal-areas-in-the-west-atlantic-ocean
#15
Chi Hin Lam, Benjamin Galuardi, Anthony Mendillo, Emily Chandler, Molly E Lutcavage
Isla Mujeres, Mexico is home to one of the most well-known aggregations of sailfish. Despite its fisheries prominence, little is known about this sailfish assemblage, or its relationship to other aggregation sites in the western Atlantic. In January 2012, April 2013 and 2014, we deployed 34 popup satellite archival tags on sailfish in order to study their behavior, population connectivity and biophysical interactions. Sailfish were monitored for up to one year, and displayed (1) predominantly shelf associated activity (2) occupancy of the Yucatán Current near Isla Mujeres for up to five months and (3) subsequent dispersals from the Yucatán to productive coastal areas in the Gulf of Mexico, the Caribbean Sea and along the South American coast...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898726/using-proxy-records-to-document-gulf-of-mexico-tropical-cyclones-from-1820-1915
#16
Jordan V Pino, Robert V Rohli, Kristine L DeLong, Grant L Harley, Jill C Trepanier
Observations of pre-1950 tropical cyclones are sparse due to observational limitations; therefore, the hurricane database HURDAT2 (1851-present) maintained by the National Oceanic and Atmospheric Administration may be incomplete. Here we provide additional documentation for HURDAT2 from historical United States Army fort records (1820-1915) and other archived documents for 28 landfalling tropical cyclones, 20 of which are included in HURDAT2, along the northern Gulf of Mexico coast. One event that occurred in May 1863 is not currently documented in the HURDAT2 database but has been noted in other studies...
2016: PloS One
https://www.readbyqxmd.com/read/27876372/interannual-variability-of-soft-bottom-macrobenthic-communities-of-the-nw-gulf-of-mexico-in-relationship-to-the-deepwater-horizon-oil-spill
#17
Diana L Salcedo, Luis A Soto, Alejandro Estradas-Romero, Alfonso V Botello
A 3-year research program was undertaken to assess potential environmental disturbance caused by the Deepwater Horizon oil spill to the soft-bottom macrobenthic communities within Mexican waters of the northwestern Gulf of Mexico. Community properties and temporal/spatial variability were analyzed besides toxicant parameters such as hydrocarbons and trace-metals. Overall infaunal density increased, taxa proportion changed, and small-size opportunistic organisms prevailed throughout the study. Annual abundance-biomass comparison (ABC) curves revealed progressive stress scenarios from moderate to severe...
November 19, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27868239/co-exposure-to-sunlight-enhances-the-toxicity-of-naturally-weathered-deepwater-horizon-oil-to-early-lifestage-red-drum-sciaenops-ocellatus-and-speckled-seatrout-cynoscion-nebulosus
#18
Matthew Alloy, Thomas Ross Garner, Kristin Bridges, Charles Mansfield, Michael Carney, Heather Forth, Michelle Krasnec, Claire Lay, Ryan Takeshita, Jeffrey Morris, Shane Bonnot, James Oris, Aaron Roberts
The 2010 Deepwater Horizon oil spill resulted in the accidental release of millions of barrels of crude oil into the Gulf of Mexico. Photo-induced toxicity following co-exposure to ultraviolet (UV) radiation is 1 mechanism by which polycyclic aromatic hydrocarbons (PAHs) from oil spills may exert toxicity. Red drum and speckled seatrout are both important fishery resources in the Gulf of Mexico. They spawn near-shore and produce positively buoyant embryos that hatch into larvae in approximately 24 h. The goal of the present study was to determine whether exposure to UV as natural sunlight enhances the toxicity of crude oil to early lifestage red drum and speckled seatrout...
November 21, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27859534/exposure-to-ultraviolet-radiation-late-in-development-increases-the-toxicity-of-oil-to-mahi-mahi-coryphaena-hippurus-embryos
#19
Lauren E Sweet, Jason Magnuson, T Ross Garner, Matthew M Alloy, John D Stieglitz, Daniel Benetti, Martin Grosell, Aaron P Roberts
The Deepwater Horizon oil spill in 2010 overlapped with the spawning of many pelagic fish species in the Gulf of Mexico, including mahi-mahi (Coryphaena hippurus). Polycyclic aromatic hydrocarbons (PAHs) released during the spill have been shown to cause photo-induced toxicity under ultraviolet (UV) radiation. In the present study, mahi-mahi embryos were exposed to high-energy water accommodated fractions of source and naturally weathered oils for up to 48 h. The timing of co-exposure with UV radiation varied between an early development exposure for 8 h or a late development exposure for 8 h...
November 16, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27859230/genetic-identification-of-istiophorid-larvae-from-the-gulf-of-mexico-based-on-the-analysis-of-mitochondrial-dna-control-region-sequences
#20
J L McKenzie, J R Alvarado Bremer
Assigning relative importance of spawning and nursery habitats for threatened and endangered teleosts, such as those seen in the Gulf of Mexico (GoM), relies on the proper identification of the early life-history stages of the species of concern. Here, sequencing a portion of the mitochondrial DNA (mtDNA) control region (CR) I as barcodes is recommended to identify istiophorid (billfish) larvae in the Atlantic Ocean because of its high resolution and the intrinsic value of the levels of genetic variation that can be extracted from these data...
November 16, 2016: Journal of Fish Biology
keyword
keyword
66109
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"