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Hatchery Practices and Flock Health Overview

Hatchet Vocabulary 16-17

Hatchery Management and Chick Production

hatchery management

The Hatchery

Hatchery Management

Hatchet Flashcards 16-17

Hatchet Flashcards 14-15

Aldabra Giant Tortoise Geochelone gigantea Description: Reaching up to 4 ft and over 700 lbs in size. Their shells range between light to dark brown with a visible neck plate that is not often found in other species of giant tortoises. Their necks are long and leathery to help adapt them to heat. Range: Seychelles (Aldabra Island) Habitat: Atoll islands-mangrove swamps, grasslands, and coastal dunes Diet: Largely herbivores, but may occasionally eat carrion or eggs if vegetable matter is not available. Weight: Males- 560 lbs; Females- 350 lbs Body Length: Second largest species of tortoise. Females can get up to 3 feet long, Males can be 4 feet long. Lifespan: Up to 100+ years Status: Vulnerable Predators: Giant Crab, Rats, Dogs, and Cats all prey on young tortoises, as well as compete for food. Threats: Habitat loss due to development, the introduction of nonnative predators (dogs, cats, rats) and livestock that compete for food (goats), and climate change, which leads to heightened sea levels and severe droughts. Relatives: They are a part of the Aldabrachelys genus, which is the taxonomic home of three giant tortoise species, two extinct species, and the extant Aldabra species. Breeding: Breeding season is from February to May. In courting, the male batters his shell against a female a dozen or more times and makes a deep, trumpeting call. The female buries 9 to 25 tennis-ball-sized eggs which incubate from 110 to 250 days. Reach sexual maturity between 20 to 30 years. Quick Facts: The GSC is home to two male Aldabra tortoises, Traveler and Jack. They may look a little different but that is because they have different shell morphotypes. This means that these two types of shells are adapted to a specific habitat. Aldabra tortoises with domed shells like Traveler are found in humid, cooler, and higher elevation habitats while saddlebacks like Jack are found in drier areas at a lower elevation. There are 3 extant subspecies of the Aldabra Tortoise: Aldabra giant tortoise (ours), Arnold’s giant tortoise, and the Seychelles giant tortoise. Daudin’s giant tortoise was the fourth subspecies but has been declared extinct. There are estimated to be over 150,000-200,000 individuals scattered about the Seychelles islands. It is believed that the oldest living giant tortoise is Jonathon, a 190-year-old Seychelle Giant Tortoise who was hatched around 1832 and resides on the Island of St. Helena in the British Overseas Territory. These tortoises can drink water through their nose, an adaptation that is useful in a mangrove environment. Despite their weight, these tortoises are able to stay afloat in water thanks to hollow honeycomb structures within their shell. In December of 2004, an Aldabra that had been washed away from the Seychelles made the 460-mile journey to the East African Shoreline (Tanzania). Aldabra tortoises are a keystone species that shape their habitat through seed dispersal. The closest relatives of the Aldabra tortoise are the tortoises of Madagascar. Scientists at the Galapagos Conservancy speculate that the ancestors of giant tortoises accidentally reached isolated islands by riding on rafts of plant matter. Conservation: Different species of giant tortoises were once found on a variety of equatorial islands. Unfortunately, over-collection for food by humans and the introduction of invasive species such as rats (which raid nests) and goats (which compete for food) drove all but 10 subspecies of Galapagos tortoises and 3 subspecies of Aldabra tortoises to extinction. It is important that these island ecosystems are carefully preserved as many are home to animals found nowhere else on Earth. Furthermore, Aldabra tortoises are helping to restore island ecosystems by being introduced to islands that have lost their native giant tortoise species. GSC Residents: Name: Traveler Date of Birth: ~December 2000 to December 2001 Sex: Male Origin: Donated from private owner October 13, 2005 Favorite Foods: Strawberries, tomatoes, bananas, watermelon Favorite Enrichment: shell scrubs Trained Behaviors: Target, scale, blood draw From the Keeper: He has a dome shell. This keeps Traveler from having the ability to reach up high like Jack can. Name: Jack Date of Birth: ~December 1989 to December 1990 Sex: Male Origin: Donated from private owner August 17, 2005 Favorite Foods: Tomatoes, strawberries, bananas, watermelon Favorite Enrichment: Shell scrubs Trained Behaviors: Target, scale, blood draw, station, color discrimination From the Keeper: He has a saddleback shell, which allows him to reach up farther for leaves and food. They can feel through the shells which are made up of keratin and bone. He is often mistaken for a rock or a statue for how still he stands at times. Facts about GSC Residents: Daily Schedule Fed main diet 3x a week, Monday, Wednesday, and Saturday. Fed browse every day. More active during the warmer weather. Will sleep, and browse throughout the day. Training Behaviors​ Due to the tortoises' immense size, we utilize several training behaviors to minimize stress on the animals and keepers. Our tortoises are target-trained, allowing us to direct them where we need them to go. Similarly, we are working with the tortoises on the Scale behavior, so that they will voluntarily walk up onto our scale for weighing. They are also working on foot/neck/poke behaviors. The foot behavior allows us to pick up their feet to see if they have any problems. The neck/poke behavior is for when we start drawing blood from their neck for health and wellness checks. Health History Sometimes get runny eyes due to dust, so we spray the ground with the hose to reduce dust. Favorite Story Jack is very sociable and loves to be scratched and rubbed. When we walk away, he will follow us wanting more

Hatchet 9-12 vocab

1.2 Sections and Hatching

hatchet

Lines, Symbols, & Hatches

BIOL 316 Lecture 7 - Aquacultures + Lecture 8 Hatcheries & stocking

Hatchet Figurative Language 1-4

Hatchet Vocab 1-4

Resistant: Trait to render Pesticides useless. Can be passed down generations. FIFO: "First in first out" for storing food - old to new. Eradication: Complete Elimination of a Pest Exclusion: Preventing entry for pest Chemical Name: Scientific name of active ingredient Common Name: EPA approved name Inorganic Pesticide: Lacks Carbon Organic Pesticide: Contains Carbon Persistent Pesticide: Remains Present (Residual) Trade Name: Brand name designated by Manufacturer Barrier Treatment: Treating exterior perimeter Space Treatment: Treatment for Air (Fog, etc) Micron: 1/25,000 of an Inch (Measures size of spray droplet) Abdomen: Rear body Section of Arthropod Arachnid: A Class of Arthopod that has the head and thorax joined to form a Cephalothorax. Arthropod: An animal with jointed legs and a Segmented, Jointed exoskeleton. Exoskeleton: The hard, flexible outer covering of an arthropod Insect: An arthropod with 3 body regions, 6 legs and winged adults Instar: The Insect as it appears between molts Larva: An Immature Stage in the life Cycle of an insect with Complete metamorphosis, Active Feeding Stage. Nymph: The developmental Stage of an insect with gradual metamorphosis. Hatch from eggs and gradually develop into adult Thorax: The second of 3 body sections of an Insect. Legs and Wings are attached to the thorax Population: Same species occupying the same area Okay, here's the formatted text for your second set of notes, using Option 1: Abdomen: Rear body section of arthropod Aggregation: Group or cluster of Cockroaches. Egg Case/Capsule: "ooth eca" Molt: To shed exoskeleton Pronotum: Shield like top plate on front of thorax, In Same Insects, it covers the head (Cockroaches) Alates: Insects with wings Brood: The larvae and pupae of Social Insects Node: Narrow segments that connect the abdomen and thorax, most ants have one or two nodes Pedicel: The Constricted area between the thorax and abdomen Social Insect: Colony that divides labor Swarm: winged male and female insects produced to mate and form new colonies Cephalothorax: Front part of body where head and thorax are joined to make one head body combination. Exuviae: The Sheds/"Skins" of Past insects Seed Ticks: The larval stage of a tick Vector: An animal that can transmit disease causing organisms from one host to another Complete Metamorphosis: Insect development involving four different body forms and life cycles Clubbed Antennae: Antennae with enlarged section at the terminal Keratin: External Feeding: Stored product pests that feed from the outside of the grain Internal Feeding Pest: larvae of stored product pest that feed entirely from within the grain Okay, here's the formatted text for your third set of notes, using Option 1: Vertebrates: Animals with a back bone Burrow: Underground passageway that forms the nest Commensal: Residing/occupying the same area as people Ectoparasites: Animals that get all their food while remaining on the outside surface of another animal Avicide: A Pesticide specifically used to control birds Cambium Layer: Layer between inner bark and sapwood. Active cell growth Fiber Saturation Point: Percent of moisture in wood when all free water has evaporated leaving only bound water Hardwood Trees: Trees that produce seeds enclosed in a fruit or nut and usually lose their leaves in the fall Softwood Trees: Trees that produce seeds NOT enclosed in a fruit or nut, usually needles or scale like leaves that hold year round Sapwood: The outer, light colored wood on a tree stem that contains living cells and conducts water up the tree Heartwood: Inner portion of a woody stem, non-living cells, usually darker than the sapwood Phloem Cells: Inner bark of a tree between the cambium and the bark. These cells conduct nutrients up and down the tree Castes: Groups where individuals all serve the same function Cellulose: Primary component of wood and wood by product Desiccation: Drying out Primary Reproductives: AKA Swarmers or alates Secondary Reproductives: Wingless or nearly wingless termites that do not leave the colony

Incubation and hatching

Hatchet 1-6

Hatchet 5 voab