ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
A new class of small, hand-deployable underwater vehicles is playing an increasingly important role in oceanographic science. Due to the small nature of these vehicles, traditional incorporation of oceanographic instrumentation into a vehicle's body can result in a device too massive or cumbersome to ...
This paper will present research results from the Adaptive Autonomous Ocean Sampling Networks (AAOSN) project; a £1.5million project funded by NERC, Dstl and the Technology Strategy Board, to develop new technology solutions for coordinating a suite of marine autonomous systems (MAS). The SeeByte consortium, ...
California implemented the State's first network of Marine Protected Areas (MPAs) within the nearshore waters of the northern Channel Islands in 2003. These protections serve as a tool to help ensure the long-term sustainability of marine populations and act as a living laboratory to better understand ...
The Middle Atlantic Bight (MAB) exhibits one of the largest seasonal cycles of temperature in the global ocean. During the summer, the water column is strongly stratified with warm surface waters separated from much colder bottom waters by a strong, shallow thermocline. The bottom water that remains ...
Since January 2015, Japan has restricted harvesting of tuna weighing less than 30 kg (juvenile tuna), in accordance with Western & Central Pacific Fisheries Commission agreements. With the goal of re-attaining historical intermediate values of 43,000 tons of tuna resources by 2024, there is now an upper ...
Surplus-Production Models are computer tools for describing and simulating biomass dynamics of fish stocks. In this work, we propose a new modeling design based on coupling two well-known paradigms in spatial computer modeling simulation (M&S): Cellular Automata Model (CAM) and Multi-Agent Systems (...
Fishing activity detection is important for fishery management to maintain abundant oceans. This paper presents a novel approach to identifying fishing activities from Automatic Identification System (AIS) data using Conditional Random Fields (CRFs). CRFs are popular for solving structured prediction ...
Marine spatial planning efforts require spatial information on human uses and biophysical components of the ocean. Currently available spatial use information on the for-hire fishing industry is insufficient for planning purposes, lacking spatial resolution and confidence by the industry. In 2015, through ...
Unused or unmanaged catch represents more than 40 % of the global marine catches. Autonomous systems for search and detection may reduce the environmental footprint of commercial fisheries by improving the targeting accuracy and also reduce the amount of fossil fuels that today are consummated by conventional ...
Conventional tagging methods using plastic streamer tags have been the most widely used tool for elucidating fish movements in the last half century. With a very high failure rate, these methods for fish tagging and tracking are unreliable and prohibitively expensive for tracking global fish populations. ...
SUMMARY Three‐dimensional analyses of the early Ediacaran microfossils from the Weng'an biota (Doushantuo Formation) have focused predominantly on multicellular forms that have been interpreted as embryos, and yet they have defied phylogenetic interpretation principally because of absence of evidence ...
The present study characterized Argulus spp. infecting the cultured carps using 18S rRNA gene sequences, estimated the genetic similarity among Argulus spp. and established their phylogenetic relationship. Of the 320 fish samples screened, 34 fish (10.6%) had Argulus infection. The parasitic frequency ...
Global translocation of plants and animals is a well-recognized mechanism for introduction of pathogens into new regions. To mitigate this risk, various tools such as preshipment health certificates, quarantines, screening for specific disease agents and outright bans have been implemented. However, ...
Nitrogen stress is a common strategy employed to stimulate lipid accumulation in microalgae, a biofuel feedstock of topical interest. Although widely investigated, the underlying mechanism of this strategy is still poorly understood. We examined the proteome response of lipid accumulation in the model ...
Ecological dynamics can produce a variety of striking patterns. On ecological time scales, pattern formation has been hypothesized to be due to the interaction between a species and its local environment. On longer time scales, evolutionary factors must be taken into account. To examine the evolutionary ...
The physiology and behaviour of ectotherms are strongly influenced by environmental temperature. A general hypothesis is that for performance traits, such as those related to growth, metabolism or locomotion, species face a trade-off between being a thermal specialist or a thermal generalist, implying ...
Characterizing labile metal distribution and biogeochemical behavior in sediments is crucial for understanding their contamination characteristics in lakes, for which in situ, high-resolution data is scare. The diffusive gradient in thin films (DGT) technique was used in-situ at five sites across Lake ...
Abstract Trophoniella hephaistossp. n. was collected from a tank irrigated with seawater pumped directly from Nabeta Bay, Japan. This species is discriminated from other Trophoniella by having dorsal tubercles, a tongue-shaped branchial plate, a tunic covered with large sediment grains dorsally and ...
Microalgae and cyanobacteria are some of nature's finest examples of solar energy conversion systems, effortlessly transforming inorganic carbon into complex molecules through photosynthesis. The efficiency of energy-dense hydrocarbon production by photosynthetic organisms is determined in part by the ...