Results 51 to 60 of about 40,545 (287)

Continuous determination of dissolved inorganic carbon fluxes from pumping suspension feeders

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Suspension‐feeding organisms play a pivotal role in the cycling of carbon in the oceans. They filter large amounts of water, filter out organic matter, remineralize it, and release respiratory CO2 back into the water column. Measuring emissions of respiratory CO2 in situ from suspension feeders poses the challenge of detecting small changes in
Neomie Diga Darmon   +8 more
wiley   +1 more source

A semi‐analytical Bayesian estimate retrieval algorithm for the inversion of remote‐sensing reflectance in optically deep and shallow waters

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract The inverse problem in remote sensing of aquatic environment consists in retrieving optically significant constituents (OSCs) from a spectral measurement of the remote sensing reflectance (Rrs$$ {R}_{\mathrm{rs}} $$).Optically significant constituent includes chlorophyll a concentration (Chl a$$ Chl\ a $$), a proxy of phytoplankton biomass ...
Soham Mukherjee   +2 more
wiley   +1 more source

Facial Baroparesis Caused by Scuba Diving

open access: yesCase Reports in Otolaryngology, 2012
Middle ear barotrauma is one of the common complications of SCUBA diving representing acute otalgia, hearing loss, and bleeding. But occurrence of facial palsy is rare. Here we report a case of a 30-year-old navy diver suffered middle ear barotrauma with
Daisuke Kamide   +2 more
doaj   +1 more source

Is Acropora Palmata recovering? A case study in Los Roques National Park, Venezuela [PDF]

open access: yes, 2016
Eight years ago (2007), the distribution and status of Acropora palmata was quantified throughout Los Roques archipelago in Venezuela. The aim was to produce a baseline study for this species which combined population genetics with demographic data.
Acropora Biological Review Team   +84 more
core   +3 more sources

Revealing growth increments in fossil and modern otoliths with backscattered electron imaging

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Otoliths, the functional earstones of teleost fishes, record growth in the form of microscopic increments, making them key archives of individual life histories. While increment analysis is commonly applied to modern otoliths, studies of fossil (Holocene) otoliths remain limited.
Isabella Leonhard   +4 more
wiley   +1 more source

A Single-armed Manta-board as a New Diver-controlled Planing Board and Its Use for Underwater Surveys [PDF]

open access: yes, 1994
Due to inadequacies of previous underwater towing techniques and the special needs of a recent underwater survey, a modified mania-board technique was developed.
Burton, Thomas E., Zimmerman, Kenneth D.
core  

Intraspecific trait variability is a key feature underlying the association between community‐weighted mean and abiotic gradients

open access: yesOikos, EarlyView.
Functional plant traits that influence fitness or performance provide a powerful tool for understanding and predicting how plants interact with their environment, respond to ecological changes, and contribute to ecosystem processes. To this day, most trait‐based ecological studies in both terrestrial and aquatic ecosystems have assumed that species ...
Roel Lammerant   +7 more
wiley   +1 more source

Construction and Operation of a Two-place Diver's Sled [PDF]

open access: yes, 1991
Fisheries gear researchers have employed scuba diver-operated sleds to evaluate towed fishing systems since the early 1950's. One of the earliest sled designs was a converted Stokes litter in which two divers sat tandem with the forward diver operating ...
Watson, John W., Workman, Ian K.
core  

A social license to operate theory for lethal control of crown‐of‐thorns starfish on the Great Barrier Reef

open access: yesPeople and Nature, EarlyView.
Abstract Outbreaks of crown‐of‐thorns starfish (COTS) have been recorded on the Great Barrier Reef (GBR) since 1962 and have considerable ecological and economic impact. Monitoring and control of COTS to predict, prevent and mitigate outbreaks is an important part of the ongoing protection of the GBR.
Henry A. Bartelet   +4 more
wiley   +1 more source

The relationship between diver experience levels and perceptions of attractiveness of artificial reefs - examination of a potential management tool. [PDF]

open access: yesPLoS ONE, 2013
Artificial reefs are increasingly used worldwide as a method for managing recreational diving since they have the potential to satisfy both conservation goals and economic interests.
Anne E Kirkbride-Smith   +2 more
doaj   +1 more source

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