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Books > Sport & Leisure > Natural history, country life & pets > Wild animals > Aquatic creatures
This report presents a summary of the forest condition data
collected in 2007 by the National Capital Region Network Inventory
and Monitoring Program. Forest condition was monitored on 100
forest plots randomly located throughout the National Capital
Region. This data is part of a long term forest monitoring effort
that will include 400 forest plots. One hundred plots will be
monitored each year, and any particular plot will be monitored once
every four years. As this is the first time that these plots are
monitored only status data but not trend data is available.
In 2000, the National Capital Region Inventory and Monitoring
Network (NCRN) initiated a deer monitoring program to collect
information on deer densities. The program is carried out through
fall spotlight surveys in Antietam National Battlefield, Catoctin
Mountain Park, Chesapeake and Ohio Canal National Historic Park-
Gold Mine Tract, George Washington Memorial Parkway - Great Falls
Park, Manassas National Battlefield Park, Monocacy National Park,
National Capital Parks - East (Greenbelt and Piscataway units),
Prince William Forest Park, and Rock Creek Park. Pellet-group
counts are used in Harpers Ferry National Historic Park because of
the lack of a road network. This report summarizes and analyzes the
fall 2007 spotlight surveys and the 2007 fall-winter pellet-group
count.
Consider that out there, somewhere, amongst the vastness of the
seas, lives a single shark who swims, hunts, sleeps, thinks, and
dreams...who may be dong any one of these activities at the same
time you yourself are swimming, hunting, sleeping, thinking, and
dreaming. Curious, isn't it? That both can share the same earth and
do the same thing at the same time? We have some interesting
commonalities. The first book by Dr. Jaws is Carcharhinus obscurus.
Did you ever hear of a fish that can whistle? Or a fish that can
move a boulder? You can read about them in I Like the Fish, second
in a series of picture books for 4- to 8-year-olds that explores
the whimsical side of nature, with colorful pictures and clever
text, portraying fish and their idiosyncrasies.
Artificial reefs are human-made structures that are either
deliberately or unintentionally submerged underwater, commonly with
the result of mimicking some characteristics of a natural reef.
Artificial reefs alter local habitat by providing hard substrate
and complex vertical relief where typically none previously existed
(Bohnsack and Sutherland 1985, Sheehy and Vik 1992, Sheehy and Vik
2010). They may be created from a variety of sources and materials
including the intentional sinking of ships and barges, rubble,
concrete, rocks, stone, boulders, steel, and metal, etc. (Baine
2001). They may also be created through unintentional means (e.g.,
shipwrecks that can become historical in nature) and through
structures built for other purposes (e.g., decommissioned oil and
gas platforms, breakwaters1, jetties, bridges, offshore
lighthouses, air force towers, navigational aids, marine data
buoys, etc.). These various materials have benefits and drawbacks
when used in artificial reef construction.
The authors detail why monitoring the current status and population
trends of fish communities and their habitats is an important tool
for preserving and conserving aquatic resources in the national
parks. The framework for monitoring small streams located in HTLN
parks is directed towards maintaining their ecological integrity,
which will be assessed through periodic monitoring of fish
communities, physical habitat, and water quality. The authors
describe the protocol which has been designed to incorporate the
spatial relationship of biotic indicators with chemical
constituents and physical habitat.
Our story highlights one of Clay Pond's enemies. But like a prism,
there are many ways to view things. It's easy just to write off all
of your enemies. Some we will see here in our story have a deeper
purpose. Even a dark cloud could have its silver lining. Big Black
is just one of many visitors who have become permanent residents
here. Be sure and share these Clay Pond stories with friends or
even your teachers.
This research is part of the Socioeconomic Research &
Monitoring Program for the NOAA Office of National Marine
Sanctuaries. In 2010, a baseline study of users and non-users of
Gray's Reef National Marine Sanctuary (GRNMS) was initiated. Mail
surveys were designed in 2010 and implemented in 2011 and 2012. The
study provides baseline data on the knowledge, attitudes and
perceptions of users and non-users of GRNMS in regard to management
strategies and regulations. It also provides information on
socioeconomic/demographic profiles, activity participation and use
of coastal and ocean waters off the Georgia coast both inside and
outside GRNMS. The surveys collected data on sources of public
information on GRNMS used and the amount of trust in sources used,
familiarity with GRNMS rules and regulations, and attitudes about
selected management strategies for coastal and ocean resources both
inside and outside GRNMS. For users of GRNMS, perceptions of
resource conditions were also addressed.
The seagrass meadows of the Northeast Coast of Brazil have the
greatest area, biomass, biometrics and diversity of the Brazilian
Coast. In this region, the seagrass diversity and plasticity may
vary due to differences in environmental factors. Some natural
aspects of the coastal environment or that which affect the coastal
zone, mainly climatic (seasons of rains and winds) and
geomorphological (bathymetry and substrate type), cause variations
in seasonality and plasticity of the species, respectively. Chapter
One in this book on aquatic ecosystems summarises the available
information concerning how seagrass vary along the Northeast Coast
of Brazil, as well as other ecological information. Chapter Two
presents a brief historical overview of biological indicators,
considering the assessment of water quality through microalgae from
an environmental perspective and their role as natural
bioindicators of the effects of eutrophication. Chapter Three
provides a mixing zone analysis of surface brine discharges in
coastal waters. Chapter Four studies the effect of low salinity on
intertidal blue mussels from the White Sea.
The billfish is fixed at the apex of the oceanic food chain.
Composed of sailfish, marlin, spearfish, and swordfish, they roam
the pelagic waters of the Atlantic and are easily recognized by
their long, spear-like beaks. Noted for their speed, size, and
acrobatic jumps, billfish have for centuries inspired a broad
spectrum of society. Even in antiquity, Aristotle, who assiduously
studied the swordfish, named this gladiator of the sea xiphias -
the sword. The Billfish Story tells the saga of this unique group
of fish and those who have formed bonds with them - relationships
forged by anglers, biologists, charter-boat captains, and
conservationists through their pursuit, study, and protection of
these species. More than simply reciting important discoveries,
Stan Ulanski argues passionately that billfish occupy a position of
unique importance in our culture as a nexus linking natural and
human history. Ulanski, both a scientist and an angler, brings a
rich background to the subject in a multifaceted approach that will
enrich not only readers appreciation of billfish but the whole of
the natural world.
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