Carcinus maenas (Green Crab) is an invasive crab species on the east and west coasts of the United States dating back to 1817. The introduction of another invasive species in 1988, Hemigrapsus sanguineus (Asian Shore Crab), has created competitive interactions between the crabs. A demographic study was conducted to compare crab populations. A total of 155 crabs were collected, 25 of which were ...

• Abstract: The tidal circulation in Paranagua Bay (Parana State, Southern Brazil) was studied based on the Princeton Ocean Model. The model domain covered the near shore region and the estuarine area, with about 1 km grid resolution in cross-shore and along-shore directions. Homogeneous and diagnostic distributions for temperature and salinity were used and 12 tidal constituents were considere...

EeFarm-II is used to evaluate 13 different electrical systems for a 200 MW wind farm with a 100 km connection to shore. The evaluation is based on component manufacturer data of 2009. AC systems are compared to systems with DC connections inside the wind farm and DC connection to shore. Two options have the best performance for this wind farm size and distance: the AC system and the system with...

Citation: Otaño-Cruz A, Montañez-Acuña AA, Torres-López V, Hernández-Figueroa EM and Hernández-Delgado EA (2017) Effects of Changing Weather, Oceanographic Conditions, and Land Uses on Spatio-Temporal Variation of Sedimentation Dynamics along Near-Shore Coral Reefs. Front. Mar. Sci. 4:249. doi: 10.3389/fmars.2017.00249 Effects of Changing Weather, Oceanographic Conditions, and Land Uses on Spat...

We describe situations in which chains of N degenerate quantum energy levels, coupled by time-dependent external fields, can be replaced by independent sets of chains of length N, N−1, . . . ,2 and sets of uncoupled single states. The transformation is a generalization of the two-level Morris-Shore transformation J.R. Morris and B.W. Shore, Phys. Rev. A 27, 906 1983 . We illustrate the procedur...

A swimmer falls overboard in an equilateral triangle lake in a fog. If the edge length of the triangle is 1, what is the shortest length swimming path that ensures the swimmer will reach the shore? Swimming one unit straight in any direction certainly reaches the shore. The problem was originally posed in 1963. Besicovitch showed shortly afterward that a 3-link chain of length 3 √ 21/14 = 0.981...

The effects of offshore aquaculture on SBT health (particularly parasitic infections and haematology) and performance were the main aim of this study. Two cohorts of ranched Southern Bluefin tuna (SBT) (Thunnus maccoyii) were monitored throughout the commercial season, one maintained in the traditional near shore tuna farming zone and one maintained further offshore. SBT maintained offshore had...

Habitat fragmentation has been suggested to be responsible for major genetic differentiations in a range of marine organisms. In this study, we combined genetic data and environmental information to unravel the relative role of geography and habitat heterogeneity on patterns of genetic population structure of corkwing wrasse (Symphodus melops), a rocky shore species at the northern limit of its...

Shoreline change was identified as a vital sign for the Southwest Alaska Monitoring Network because land loss or gain at the marine edge has important ecological and jurisdictional implications to resource managers of coastal National Parks. To evaluate the type of shoreline changes occurring along the 82 km coastline of Lake Clark National Park and Preserve, 7 of 10 cross-shore beach profiles ...

Identifying locations for secure sequestration of CO(2) in geological formations is one of our most pressing global scientific problems. Injection into basalt formations provides unique and significant advantages over other potential geological storage options, including large potential storage volumes and permanent fixation of carbon by mineralization. The Central Atlantic Magmatic Province ba...