Species Tally
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False Black Widows and Other Household Spiders
False Black Widows and Other Household Spiders Spiders can quite unnecessarily evoke all kinds of dread and fear. The Press does not help by publishing inaccurate and often alarmist stories about them. Spiders are in fact one of our very important beneficial creatures. Spiders in the UK devour a weight of insect 'pests' equivalent to that of the nation's human population! During the mid-late summer, many spiders mature and as a result become more obvious as they have then grown to their full size. One of these species is Steatoda nobilis. It came from the Canary and Madeiran Islands into Devon over a 100 years ago, being first recorded in Britain near Torquay in 1879! However it was not described from Britain until 1993, when it was known to have occurred since at least 1986 and 1989 as flourishing populations in Portsmouth (Hampshire) and Swanage (Dorset). There was also a population in Westcliff-on-Sea (Essex) recorded in 1990, and another in Littlehampton and Worthing (West Sussex). Its distribution is spreading more widely along the coast in the south and also inland, with confirmed records from South Devon, East Sussex, Kent, Surrey and Warwick. The large, grape-like individuals are the females and the smaller, more elongate ones, the males. These spiders are have become known as False Widows and, because of their colour, shape and size, are frequently mistaken for the Black Widow Spider that are found in warmer climes, but not in Britain (although some occasionally come into the country in packaged fruit and flowers). Black Widow Spiders belong to the world-wide genus Latrodectus. -
Skipjack Tuna, Yellowfin Tuna, Swordfish Western and Central
Skipjack tuna, Yellowfin tuna, Swordfish Katsuwonus pelamis, Thunnus albacares, Xiphias gladius ©Monterey Bay Aquarium Western and Central Pacific Troll/Pole, Handlines July 11, 2017 (updated January 8, 2018) Seafood Watch Consulting Researcher Disclaimer Seafood Watch® strives to have all Seafood Reports reviewed for accuracy and completeness by external scientists with expertise in ecology, fisheries science and aquaculture. Scientific review, however, does not constitute an endorsement of the Seafood Watch® program or its recommendations on the part of the reviewing scientists. Seafood Watch® is solely responsible for the conclusions reached in this report. Seafood Watch Standard used in this assessment: Standard for Fisheries vF2 Table of Contents About. Seafood. .Watch . 3. Guiding. .Principles . 4. Summary. 5. Final. Seafood. .Recommendations . 6. Introduction. 8. Assessment. 12. Criterion. 1:. .Impacts . on. the. species. .under . .assessment . .12 . Criterion. 2:. .Impacts . on. other. .species . .18 . Criterion. 3:. .Management . Effectiveness. .23 . Criterion. 4:. .Impacts . on. the. habitat. and. .ecosystem . .29 . Acknowledgements. 32. References. 33. Appendix. A:. Updated. January. 8,. .2017 . 36. 2 About Seafood Watch Monterey Bay Aquarium’s Seafood Watch® program evaluates the ecological sustainability of wild-caught and farmed seafood commonly found in the United States marketplace. Seafood Watch® defines sustainable seafood as originating from sources, whether wild-caught or farmed, which can maintain or increase production in the long-term without jeopardizing the structure or function of affected ecosystems. Seafood Watch® makes its science-based recommendations available to the public in the form of regional pocket guides that can be downloaded from www.seafoodwatch.org. The program’s goals are to raise awareness of important ocean conservation issues and empower seafood consumers and businesses to make choices for healthy oceans. -
Fish for Your Health™ Advice for Pregnant Or Nursing Women, Women That Will Become Pregnant, and Children Under 6 Years of Age
Fish for Your Health™ Advice for pregnant or nursing women, women that will become pregnant, and children under 6 years of age 1. Eat fish – Health experts recommend that women eat 8-12 ounces/week (weight before cooking) of fish. Children, ages 2-6, should eat at least 2 ounces/week. As a reference, 3 ounces of fish is about the size of a deck of cards. Women that eat fish which contains omega-3 fatty acids (EPA & DHA) will pass these nutrients to their babies and support healthy brain and eye development. Best Choices: Eating six ounces/week of the following fish provides the recommended amounts of healthy fats and will minimize your baby’s exposure to pollutants: salmon (wild or farm-raised), rainbow trout (farm-raised), herring, mackerel (Atlantic, Jack, chub), sardine, shad (American), whitefish. 2. Before eating recreationally-caught fish, check our Fish4Health website below for your State’s fish consumption advisory and avoid eating fish that is heavily contaminated with pollutants. If a fish that you caught is not listed in the advisory, then eat no more than 1 meal per month. If you are unsure about the safety of the fish that you caught, be safe - ‘catch-and-release’. 3. Minimize your exposure to pollutants in commercial fish - follow the advice given below. (Ex: If you eat 4 ounces of albacore tuna, then don’t eat any other fish from this category until the following week.) Level of Maximum Mercury Amount for Commercial Fish Species or PCBs** Adults to Eat anchovy, butterfish, catfish (farm-raised), clam, cod, crab (Blue, King -
Common Kansas Spiders
A Pocket Guide to Common Kansas Spiders By Hank Guarisco Photos by Hank Guarisco Funded by Westar Energy Green Team, American Arachnological Society and the Chickadee Checkoff Published by the Friends of the Great Plains Nature Center i Table of Contents Introduction • 2 Arachnophobia • 3 Spider Anatomy • 4 House Spiders • 5 Hunting Spiders • 5 Venomous Spiders • 6-7 Spider Webs • 8-9 Other Arachnids • 9-12 Species accounts • 13 Texas Brown Tarantula • 14 Brown Recluse • 15 Northern Black Widow • 16 Southern & Western Black Widows • 17-18 Woodlouse Spider • 19 Truncated Cellar Spider • 20 Elongated Cellar Spider • 21 Common Cellar Spider • 22 Checkered Cobweb Weaver • 23 Quasi-social Cobweb Spider • 24 Carolina Wolf Spider • 25 Striped Wolf Spider • 26 Dotted Wolf Spider • 27 Western Lance Spider • 28 Common Nurseryweb Spider • 29 Tufted Nurseryweb Spider • 30 Giant Fishing Spider • 31 Six-spotted Fishing Spider • 32 Garden Ghost Spider Cover Photo: Cherokee Star-bellied Orbweaver ii Eastern Funnelweb Spider • 33 Eastern and Western Parson Spiders • 34 Garden Ghost Spider • 35 Bark Crab Spider • 36 Prairie Crab Spider • 37 Texas Crab Spider • 38 Black-banded Crab Spider • 39 Ridge-faced Flower Spider • 40 Striped Lynx Spider • 41 Black-banded Common and Convict Zebra Spiders • 42 Crab Spider Dimorphic Jumping Spider • 43 Bold Jumping Spider • 44 Apache Jumping Spider • 45 Prairie Jumping Spider • 46 Emerald Jumping Spider • 47 Bark Jumping Spider • 48 Puritan Pirate Spider • 49 Eastern and Four-lined Pirate Spiders • 50 Orchard Spider • 51 Castleback Orbweaver • 52 Triangulate Orbweaver • 53 Common & Cherokee Star-bellied Orbweavers • 54 Black & Yellow Garden Spider • 55 Banded Garden Spider • 56 Marbled Orbweaver • 57 Eastern Arboreal Orbweaver • 58 Western Arboreal Orbweaver • 59 Furrow Orbweaver • 60 Eastern Labyrinth Orbweaver • 61 Giant Long-jawed Orbweaver • 62 Silver Long-jawed Orbweaver • 63 Bowl and Doily Spider • 64 Filmy Dome Spider • 66 References • 67 Pocket Guides • 68-69 1 Introduction This is a guide to the most common spiders found in Kansas. -
THE SPIDER GENERA STEATODA and ENOPLOGNATHA in AMERICA* (ARANEAE, THERIDIIDAE) by Herbert2" W
THE SPIDER GENERA STEATODA AND ENOPLOGNATHA IN AMERICA* (ARANEAE, THERIDIIDAE) BY HERBErt2" W. Lvr Museum of Comparative Zoology, Harvard University The previous revisions (Levi, 957a, 957b) of the. two genera Enoploynatha and Steatoda considered only the North American species. Since the revisions were published, large South American collections have become available and the types of South American species could be consulted. The majority of species of both genera are found in the north temperate zone and are fairly well known. The additional species described here from the neotropical area are sometimes intermediate between the. two genera. Enoploynatha peruviana may lack the tooth on the posterior margin of the chelicerae as in Steatoda species. The. males of several Steatoda (e.g.S. andina) have the chelicerae enlarged as is characteristic of Enoplognatha. South American E.noplognatha species are found only in southern Peru and northern Chile (Map ). The genus has no representatives in Central America or the West Indies. Steatoda species are found in all parts of South America, with several endemic species, and several that are widespread (S. ancorata, 8. grossa, S. moesta). Unlike Anelosimus species (Levi, in press) Steatoda species cross the desert or mountain barrier into Chile (Map 2). The types of species could be exam/ned through the hospitality and cooperation of Dr. G. Owen Evans and Mr. D. Clark of the British Museum (Natural History) Prof. G. C. Varley of the Hope Depart- ment of Entomology, Oxford; Dr. L. Brundin of the Natural History Museum, Stockholm; Prof. M. Birab4n of the Museo de la Plata; Prof. -
Safe Weekly Amounts of Mercury in Fish
Safe weekly amounts of mercury in fish Florida testing for mercury in a variety of fish is helpful for calculating the amount of seafood a person can eat, and still stay within the EPA Reference Dose for mercury – the amount of mercury a person can consume on a continuing basis without fear of ill effects. Safe amounts of fish are calculated by weekly doses. Amounts are cumulative; each meal must be counted against the weekly reference dose. Mercury amounts vary from fish to fish, and the averages below should serve only as guidelines. How to use the chart When calculating weekly allowances of fish, refer to the box closest to your weight and see the safe amount in ounces (a typical serving of fish is about 6 ounces). For instance, if you weigh 150 pounds you should limit yourself to 4.6 ounces per week of Red Grouper. For Snook you could eat no more than 4.2 ounces per week. To eat more than one kind of fish or more than one fish meal per week, you would want to select species with high allowances, such as mullet (72.4 ounces per week) or sand bream (22.4 ounces). PPM WEIGHT OF INDIVIDUAL COMMON NAME MERCURY 50 LBS 100 LBS 150 LBS 200 LBS 250 LBS Smoked Salmon (unspecified species) 0.039 14.8 oz 29.6 44.4 59.2 73.0 Salmon (unspecified species) 0.04 14.3 28.6 42.9 57.1 70.5 Vermillion Snapper 0.051 11.2 22.4 33.6 44.8 55.3 Crabmeat (lump) 0.066 8.7 17.3 26.0 34.6 42.7 Yellowtail Snapper 0.078 7.3 14.7 22.0 29.4 36.3 Crabmeat (claw) 0.092 6.2 12.4 18.6 24.8 30.7 Lane Snapper 0.182 3.1 6.3 9.4 12.6 15.5 Canned Tuna (light) 0.205 2.8 5.6 -
Florida Recreational Saltwater Fishing Regulations
Florida Recreational Issued: July 2020 New regulations are highlighted in red Saltwater Fishing Regulations (please visit: MyFWC.com/Fishing/Saltwater/Recreational Regulations apply to state waters of the Gulf and Atlantic for the most current regulations) All art: © Diane Rome Peebles, except snowy grouper (Duane Raver) Reef Fish Snapper General Snapper Regulations: • Snapper Aggregate Bag Limit - Within state waters ul of the Atlantic and Gulf, Snapper, Cubera u l Snapper, Red u l X Snapper, Vermilion X Snapper, Lane u l all species of snapper are Minimum Size Limits: Minimum Size Limits: Minimum Size Limits: Minimum Size Limits: included in a 10 fish per • Atlantic and Gulf - 12" (see below) • Atlantic - 20" • Atlantic - 12" • Atlantic and Gulf - 8" harvester per day aggregate • Gulf - 16" • Gulf - 10" bag limit in any combination Daily Recreational Bag Limit: Daily Recreational Bag Limit: of snapper species, unless • Atlantic and Gulf - 10 per harvester Season: Daily Recreational Bag Limit: • Atlantic - 10 per harvester stated otherwise. under 30", included within snapper • Atlantic - Open year-round • Atlantic - 5 per harvester not included • Gulf - 100 pounds per harvester, not • Seasons – If no seasonal aggregate bag limit • Gulf - Open June 11–July 25 within snapper aggregate bag limit included within snapper aggregate • May additionally harvest up to 2 over • Gulf - 10 per harvester not included bag limit information is provided, the Daily Recreational Bag Limit: species is open year-round. 30" per harvester or vessel-whichever within snapper aggregate bag limit is less-, and these 2 fish over 30" are • Atlantic and Gulf - 2 per harvester not included within snapper aggregate • Gulf - Zero daily bag and possession limit bag limit for captain and crew on for-hire vessels. -
Living with Spiders Regional Park District
where they’re likely to live. Teach them CONTROL OF UNWANTED QUESTIONS: to respect all spiders, not to tease them, SPIDERS IN THE HOME If you have any questions about spiders or Living With and to keep their fingers out of dark other wildlife in the East Bay, call or email a Basic Spider Control: To remove a corners without looking first. Park District naturalist at one of the Visitor Spiders spider from your home, vacuum it up Centers listed below. and freeze the bag, trap it in a large jar WHAT TO DO IF BITTEN ARDENWOOD HISTORIC FARM and carry it outside, or chase it out Fremont 510-544-2797, [email protected] Do your best to capture the spider and the door with a broom if it’s too fast save it for identification. If you have any BLACK DIAMOND MINES or big to catch. concern about infection, allergic reac- Antioch 510-544-2750, [email protected] East Bay Control of Black Widows: As with tion, or the condition of the bite, seek BOTANIC GARDEN Regional Park District any living thing, the key to removal is prompt medical attention. Berkeley 510-544-3169, www.nativeplants.org to eliminate its habitat. Look for black Otherwise take these steps: COYOTE HILLS REGIONAL PARK widows beneath outdoor furniture, Fremont 510-544-3220, [email protected] 1. Stay calm and wash the bite with soap around wood piles, in cracks in foun- CRAB COVE at CROWN BEACH and water to prevent infection. dations, and the corners of outbuild- Alameda 510-544-3187, [email protected] 2. -
Mercury in Fish Depends on How Long the Fish Lives and What It Eats
FSANZ ADVICE ON FISH CONSUMPTION There are many nutritional benefits from eating fish.Fish is low in saturated fat and is an excellent source of protein, essential omega- 3 fatty acids, iodine, and some vitamins. Australian Dietary Guidelines recommend eating a variety of protein-rich foods including meats, poultry, fish, eggs, nuts and legumes. In deciding how much and what types of fish to eat, be aware that all fish contain a small amount of mercury, with some types of fish having higher levels than others. Eating too much of those fish with high mercury levels, or eating them every day, could have harmful effects. The table provides guidance on the number of serves of different types of fish that are safe to eat for different population groups. This advice is particularly important for pregnant women and those women intending to become pregnant because the unborn baby is more vulnerable than others to the harmful effects of mercury. Young children are also included in this advice because they are growing rapidly and eat more food per kilogram of body weight than adults or older children. Their exposure to mercury may therefore be higher than adults. Food Standards Australia New Zealand has prepared the ‘Advice on Fish Consumption’ based on the latest scientific information. The advice has been specifically developed for the Australian population and reflects local knowledge of our diets, the fish we eat and their mercury content. The details of the advice given for other countries may vary because the risk of mercury exposure from the diet depends on the environment in that country, the type of fish commonly caught and eaten, the patterns of fish consumption and the consumption of other foods that may also contain mercury. -
Fish Overview
The Toledo Zoo/ThinkingWorks Teacher Overview for the Fish Lessons Ó2003 Teacher Overview: Fish Fish have many traits that are unique to this particular class of animals. Below is a list of general fish traits to help you and your students complete the ThinkingWorks menu. This lesson focuses on typical fish that most people are familiar with, not on atypical fish such as seahorses. Fish are divided into three groups or classes, each with its own set of features. These classes include the bony fish (e.g., tuna and bass), cartilaginous fish (e.g., sharks and rays) and jawless fish (e.g., lampreys). We have included a list of the different fish found at The Toledo Zoo. Most of the fish are found in the Aquarium but there are also fish in the Diversity of Life. Note that animals move constantly in and out of the Zoo so the list below may be inaccurate. Please call the Zoo for a current list of fish that are on exhibit and their locations. Typical Fish Traits Lightweight, strong scales Lateral line for detecting for protection changes in turbulence along a fish as well as changes in water pressure Gas bladder for buoyancy, stability (internal) Symmetrical tail for Most fish have a well powerful swimming developed eye for locating prey, detecting predators and finding a mate. Flexible “lips” for picking up food Gills for extracting oxygen from the water Maneuverable, paired fins for Lightweight, strong moving forward and controlling skeleton for support roll, pitch and yaw q Fish are cold-blooded, obtaining heat from the surrounding water. -
Triangulate Cobweb Spider
Colorado Arthropod of Interest Triangulate Cobweb Spider Scientific Name: Steatoda triangulosa Order: Araneae (Spiders) Family: Theridiidae (Combfooted or Cobweb Spiders) Identification and Descriptive Features: The triangulate cobweb spider is a fairly small species, with a body ranging from 4-6mm. The abdomen is brown and marked with white and yellow roughly triangular spots on the top. Irregular markings occur along the sides of the abdomen, which is covered with fine hairs. The cephalothorax is brownish orange and legs are yellow, darkening at the ends. Occurrence in and around Homes: The triangulate cobweb spider is often the most common cobweb making species in Colorado homes, although easily overlooked because of its small size. The cobwebs it produces are usually located in dark corners of houses, basements, and outbuildings. Indoor breeding may occur and it can be found year-round in homes. Life History and Habits: Like other members of the family, the triangulate cobweb spider produces Figures 1, 2. A triangulate cobweb spider a tangled, irregularly constructed web. The spider female (top) and adult male (bottom, next to a is almost always found suspended within the web penny). The top photograph is courtesy of or at the edges of it. Flying insect prey snared by Joseph Berger and BugWood.org the webs are swathed in sticky silk. Mating and production of the egg sacs takes place from late spring through early fall. The egg sacs are made of loosely woven white silk, and about 30 eggs are visible inside each sac. Medical Importance: This species is harmless to humans. No cases of adverse reactions from the bite of this species have ever been recorded. -
Contaminated Fish, Moderate and How Much Can Safely Be Eaten Each Month (Assuming No Other Contaminated Fish Is Consumed)
CONTAMINATEDCONTAMINATED FFISHISH HOW MANY MEALS ARE SAFE PER MONTH? The ecological concerns with how 1 4 3 2 1 ⁄2 0 these fish are caught or farmed are: Considerable Fish is generally healthy to eat, but you should eat some types infrequently, if at all. This chart lists the most contaminated fish, Moderate and how much can safely be eaten each month (assuming no other contaminated fish is consumed). The advice is based on guidance from Minimal the Environmental Protection Agency and the latest mercury and PCB data. See the green sections below for safer seafood options. Variable Older Younger Women Men FISH children children Reason for advisory American and European eel• 0 0 0 0 PCBs, mercury Striped bass (wild)• 0 0 0 0 PCBs, mercury Alewife and shad• 0 0 0 0 PCBs Bluefish• 0 0 0 0 PCBs, mercury Sturgeon (wild)• 0 0 0 0 PCBs, mercury Weakfish• 0 0 0 0 PCBs, mercury Bluefin tuna• 0 0 0 0 PCBs, mercury 1 King mackerel• 0 ⁄2 0 0 Mercury Marlin• 0 1 0 0 Mercury Swordfish• 0 1 0 0 Mercury Shark• 0 1 0 0 Mercury 1 1 Croaker• ⁄2 ⁄2 0 0 PCBs 1 1 Summer and winter flounder• 1 1 ⁄2 ⁄2 PCBs 1 Salmon (wild-Washington)• 1 1 1 ⁄2 PCBs 1 Opah/moonfish• 1 1 1 ⁄2 Mercury 1 Atlantic or farmed salmon• 1 1 1 ⁄2 PCBs 1 Bigeye tuna• 1 1 1 ⁄2 Mercury 1 Orange roughy• 2 1 1 ⁄2 Mercury Spotted seatrout• 2 2 1 1 PCBs, mercury Spanish mackerel• 2 2 1 1 Mercury Pacific rockfish• 2 2 1 1 PCBs, mercury Blue crab• 2 2 1 1 PCBs, mercury Chilean seabass• 2 2 1 1 Mercury Lingcod• 2 2 1 1 Mercury Wahoo• 3 2 2 1 Mercury Grouper• 3 2 2 1 Mercury Eastern/American oyster