PDF-Freshwater Spiny Crayfish in North

East NSW November 2013 Primefact 1327 first edition Fisheries Ecosystems Unit Port Stephens Fisheries Institute I ntroduction North e ast NSW is home to several species of freshwater crayfish. Manual calipers are used by sliding the movable arm so the jaws of the ca lipers fit around the carapace The main reading 1 mm is read by finding the closest value above the 582065834858207573475772557718573475775457690576305734757717577255779257602 J. Lindgren, Minnesota DNR Dr. I. A. Grigorovich, University of Windsor Spiny Water Flea or BythotrepheBoth water fleas are in the family Cercopagidida Description: The spiny waterflea is not an insect but a small crustacean. It is about a 1/2 inch long with a long, sharp, barbed tail spine. Distribution: It is native to Great Britain, and its h NADYA T. VINOGRADOVA. 1. RUI M. PONTE. 1. MARTHA W. BUCKLEY. 2. 1. Atmospheric . and Environmental Research (AER. ), USA. 2. George Mason University (GMU), USA . Aquarius/SAC-D Science Team Meeting, Seattle, WA. DISSECTION. . Animal Groups. Image from: http://ology.amnh.org/biodiversity/treeoflife/pages/graph.html. ARTHROPODA. “Arthro” = jointed. “pod” = foot. Arthropods. Structures. to identify in lab. Crayfish Study. Scenario:. We are Biological Technicians for National Park Service at Lake Roosevelt National Recreation Area. Part of our job is to help with the Crayfish Inventory and Monitoring Program. For this study our duties will be to set and take in the crayfish traps as well as collecting and analyzing the data.. Prelab. 2010. United streaming: crayfish 10:44.  . Youtube. - crayfish external anatomy. http://www.youtube.com/watch?v=rZ-7LF5AkGs. 6.21.  . internal. http://www.youtube.com/watch?v=rpkiNLhCBMU&feature=related. Unit One. What is a freshwater ecosystem?. Only 3% of the world’s water is fresh.. Freshwater is either frozen in glaciers and pack ice or is buried in aquifers.. The remainder of the water is found in lakes, ponds, streams, and rivers.. Aleurocanthus. . spiniferus. Image Credit: Francesco Porcelli, . DiBCA sez Entomologia e Zoologia , . University of Bari, EPPO website - http://photos.eppo.org/index.php/image/2602-alecsn-08 . Orange Spiny Whitefly . Video: . https://www.youtube.com/watch?v=3vENk9QPp4M. Crustaceans. All Arthropods have:. Exoskeleton. Jointed legs. Source: https://www.thoughtco.com/subphylum-crustacea-crustaceans-1968439. Crustaceans Basics. Saltwater . Makes up 97% of the Earth’s supply of water.. Comes from the ocean.. Undrinkable.. Makes up 3% of the Earth’s supply of water.. Some of it is frozen while some is in the ground (groundwater) and the rest is in rivers and lakes.. Question 1.. Which of the following is not a freshwater source? . Ditch. Ocean . Canal . Lake . Question 2. .. Roughly how much of the Earth’s surface is covered by freshwater?. Half . Two thirds . A. FRESHWATER ON EARTH. 70% of Earth is covered in water.. 3% of Earth’s water is freshwater (97% saltwater). FRESHWATER CONTAINS LESS THAN 1% SALT. 68.7% of FRESHWATER is frozen in glaciers and icecaps.  . QUESTION. When heated to about 370 degrees . celsius. will saltwater or freshwater hold heat the longest? . RESEARCH.      Table salt nutrition facts can be found at the back of the packaging. Every 1 tablespoon (18 grams) of table salt you gain 0 calories, there is 0% total fat so there is no saturated fat, polyunsaturated fat and monounsaturated fat. Along with no saturated fats there is also no cholesterol or any carbohydrates as well as no sugars or protein. Salt may not be a good source of vitamins A,D,B-12,C and B-6 since there is no trace of them in table salt, including calcium, iron, magnesium. But  there is 590mg of sodium in salt. There is also 1mg of potassium. .