The distribution of the ribbon leech, NepMlopsis obscwra, was examined in the Central Lowland and Missouri Coteau regions of North Dakota. The leech was found in 12 of3S ponds sampled during a two-year period. Leeches were trapped with throated metal cans and burlap sacks baited with frozen fish parts. Leech ocamence was positively correlated with maximum depth, mean conductivity, and percent l...

mpulsive Echo Ranging systems are air-deployed, active, multistatic sonar systems designed to operate in both littoral and open-ocean areas. Sources ensonify a target, and multiple receivers detect resulting short-duration echo signals. Because the source illuminates ocean bottom features, particularly in shallow littoral waters, and the ocean is rich in independently generated transients, the ...

Tests of hypotheses about the biogeographical consequences of long-distance dispersal have long eluded biologists, largely because of the rarity and presumed unpredictability of such events. Here, we examine data for terrestrial (including littoral) organisms in the Pacific to show that knowledge of dispersal by wind, birds and oceanic drift or rafting, coupled with information about the natura...

a case of isospora hominis infection was revealed by stool examination using formol- ether concentration technique. the patient was a 26 year-old female from rural area of babol, caspian sea littoral, with complaints of abdominal discomfort.

The effects of tides on littoral marine habitats are so ubiquitous that shorelines are commonly described as 'intertidal', whereas waves are considered a secondary factor that simply modifies the intertidal habitat. However mean significant wave height exceeds tidal range at many locations worldwide. Here we construct a simple sinusoidal model of coastal water level based on both tidal range an...

Population of aerobic and anaerobic bacteria along the different tidal zones of Sundarban Mangrove forest sediment was studied to determine their distribution with the availability of different nutrients and other physicochemical parameters. Lower littoral zone (LLZ) along the shore which remains inundated by sea water showed more population of anaerobic bacteria (212 x 10 CFUg) than that of mi...

We used a longline tethering method to examine the relationship between prey refugia, prey body morphology and the location and magnitude of predation mortality within an individual lake and among three lakes that differed in coarse woody habitat (CWH) and aquatic macrophyte abundances. Predation events were lowest in the macrophyte and/or CWH refuges, peaked at or just beyond the refuge edge a...

Hybridization among littoral cichlid species in Lake Tanganyika was inferred in several molecular phylogenetic studies. The phenomenon is generally attributed to the lake level-induced shoreline and habitat changes. These allow for allopatric divergence of geographically fragmented populations alternating with locally restricted secondary contact and introgression between incompletely isolated ...

At coasts, sandy beach-dune systems act as natural barriers to environmental forcing, preventing coastal flooding and protecting communities. In the context of studies, it is fundamental identify sectors exposed wave impact support management suggest soft engineering interventions. This work examines morphodynamics Mira system on northern-central littoral Portugal over winter 2016-2017. Couplin...