Crustacea by ZOO2A Tutorials https://padlet.com/zoology2a/azt8xf9gh7w en-us 2018-05-07 12:53:03 UTC 2026-03-14 10:44:21 UTC hello@padlet.com General morphology zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258693538 2018-05-07 19:41:26 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258693538 Fill in the blanks zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258694699 2018-05-07 19:44:17 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258694699 Copepoda zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258696491
  • Modification in parasitic life style:
  • Reduction in locomotion appendages
  • Develop attachment structures
  • Increase size and proportions of reproductive structures
  • Fusion of body somites
  • Reduction of sense organs
  • Reduction in number of instars that are free living
    •  Why do these modifications take place? Explain a reason for each.
    Use the given modifications and apply it to the description of a species of Copepoda



    ]]>     2018-05-07 19:49:25 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258696491     Lernaea cyprinacea zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258698175 Fill in the gaps:
    These organisms parasitize freshwater _____ and_______. Are they of economic importance? Why? The ________ of the parasite anchors to the hosts ____. Therefore they damage the scales on the hosts body and also causes _______, ulceration,_______ and fungal infections. Small fish can die due to heavy infestations, they are especially a threat in hatcheries.]]>     2018-05-07 19:55:21 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258698175     Life cycle zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258700399 Please describe the lifecycle of Lernaea cyprinacea in detail]]> 2018-05-07 20:03:04 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258700399 Diagnosis and treatment zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258701261
  • Visually identify the female on the host organism
  • Effect on feeding of the fish due to buccal cavity infection
  • Use organophosphate as a control method
  • A dip in potassium permaganate can also kill the females
    • ]]>     2018-05-07 20:06:06 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258701261     Ergasilus species zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258702003 Most common copepods that infect fish. They have primarily freshwater hosts but can parasitize marine species as well. Only the females are parasitic. Sensory organs= antennules and antennae. Females usually attach to gills of the fish host using their antennae. Describe how these antennae are modified.]]> 2018-05-07 20:08:37 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258702003 zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258704360 2018-05-07 20:17:26 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258704360 Argasilus life cycle zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258705408 Please describe Argasilus's life cycle in detail according to the figure below]]> 2018-05-07 20:21:49 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258705408 Pathology zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258705786 What do infestations of Argasilus on the gills of fish cause? Do epozootics occur?

    ]]>     2018-05-07 20:23:26 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258705786     Caligus species zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258706369 No freeliving life stages. Larger is size than free-living groups. Can attach to various areas of the host. Please name these areas.]]> 2018-05-07 20:25:36 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258706369 Morphology zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258707581 2018-05-07 20:30:23 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258707581 Life cycle zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258707717 Please describe their life cycle in detail]]> 2018-05-07 20:30:56 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258707717 Argulus japonicus zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258708148 Fill in the gaps:
    common genus. Adults are able to swim. Dorso-venterally flattened. They have ____ pairs of antennae._________ are used to maintain position of the host and clean other appendages. The number of thoracic segments are _____. They also have _______ pairs of swimming legs. _______ form, with flagellum on firts two pairs.]]>     2018-05-07 20:32:49 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258708148     Morphology zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258709588 2018-05-07 20:39:26 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258709588 Distinguish between the following zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710140 2018-05-07 20:42:16 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710140 Argulus japonicus life cycle zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710325
  • Not host specific
  • Mating takes place on host
  • Females deposit eggs on other substrate than the host
  • No ovisacs
  • Eggs hatch releasing larvae
  • Larvae then fins a host organism and undergo multiple molts before becoming an adult
  • Increased temperatures make eggs hatch faster
    • ]]>     2018-05-07 20:43:12 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710325     Sacculina species zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710851 Morphology:
    Parasites of decapods (crabs). Adults do not resemble arthropods, they have no appendages. Nutriets obtained from root-like processes ramifying through the tissues of the crab host]]>     2018-05-07 20:46:01 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258710851     zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258711667 2018-05-07 20:49:43 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258711667 zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258711831 2018-05-07 20:50:37 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258711831 Life cycle zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712089 Please describe the life cycle in detail]]> 2018-05-07 20:51:54 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712089 Effect on the host zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712316 Describe why these parasites are economically important. How do they alter their host organisms?]]> 2018-05-07 20:52:56 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712316 Free living vs parasitic zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712759 2018-05-07 20:54:52 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712759 Malacostraca class zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712928 Order: Isopoda
    Morphology:
    Fill in the gaps    :
    They are divided into three main regions: head, _______ and________. They also have a ________thorax. They have _____ pairs of antennae,_____ thoracic segments each with a pair of limbs,______segmented abdomen, first _____ with pleopods. What are pleopods?Dorsally overlapping plates are present.]]>     2018-05-07 20:55:39 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258712928     Lironeca species zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258713639 Parasites of fish
    Burrow under the scale of the fish host. Skin stretches to accommodate the growing Isopod. Communicates to the exterior through a small hole.]]>     2018-05-07 20:59:33 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258713639     zoology2a https://padlet.com/zoology2a/azt8xf9gh7w/wish/258714438 What are the effects on their fish host?]]> 2018-05-07 21:03:29 UTC https://padlet.com/zoology2a/azt8xf9gh7w/wish/258714438