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Books > Sport & Leisure > Natural history, country life & pets > Wild animals > Aquatic creatures > General
A wonderfully illustrated book filled with everything you would
ever need to know about blue whales.... and Billy of course. This
book is designed to make children's eyes light up with interest.
Enjoy
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Arowana
- The Complete Owner's Guide for the Most Expensive Fish in the World: Arowana Fish Tank, Types, Care, Food, Habitat, Breeding, Mythology - Includes Silver, Platinum, Red, Jardini, Black, Golden, Green
(Paperback)
Kyle Faber
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R332
R308
Discovery Miles 3 080
Save R24 (7%)
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Ships in 18 - 22 working days
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The National Institute of Standards and Technology (NIST), in
support of the National Oceanic and Atmospheric Administration s
Marine Mammal Health and Stranding Response Program (NOAA/MMHSRP)
conducts annual interlaboratory comparison exercises for the
determination of chlorinated pesticides, polychlorinated biphenyl
congeners, and trace elements in marine mammal tissues. These
exercises provide one mechanism for laboratories to evaluate their
measurement quality and comparability for these constituents in
marine mammal tissues. In the 2003 exercise, 24 laboratories
participated in determining the concentrations of selected
polychlorinated biphenyl congeners (PCBs) and organochlorine
pesticides in a homogenized blubber control material Marine Mammal
Quality Assurance Exercise Homogenate VI (Homogenate VI) and
Standard Reference Material (SRM) 1945 Organics in Whale Blubber.
This report includes the results reported by the participating
laboratories, combined consensus data results, and summary
statistics for each analyte in the samples. The numerical indices
used to assess laboratory performance are also discussed.
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.
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.
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.
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