User:Icedburg824/Spiny Dogfish
Group Work - Team Dogfish
Squalidae
Intro.
- "no anal fin," yet picture of spiny dogfish depicts clear pelvic fins (plural, as in ventral pair similar to pectoral fins, but smaller in size and located towards caudal end). Although internal wiki (see Fish fin page) does elaborate on different kinds of fins, personally I think further clarification concerning difference between pelvic and anal fins should be included in the intro to avoid confusion between the two as said image may be partially misleading.
- remove "tend to have" slender bodies - all dogfish species have streamlined body morphology
- remove "known to be" - In comparison to other shark species, dogfish are smaller and more compact in size
- Squaliform order comprised of 7 families (see List of sharks page), including Squalidae. Squalidae family itself contains only two major genus: Cirrhigaleus (3 species) and Squalus (28 species)
- "Dogfish sharks earned their name... dog-like packs" should probably be moved into beginning of intro as somewhat informal / less important information (^ after "119 species" and before "they have two dorsal fins...")
Body
Create section: "Taxonomy"
breakdown of scientific classification including...
- all families & descriptions of each
- all genus of each family & descriptions
- potential color-coded chart?
Create section: "Phylogeny"
- Common ancestors?
- Closest living relative?
- phylogenetic map
Create section: "Characteristics"
Variations in....
- anatomy / morphology
Want to add: section on pregnancy and the urogenital system, how the structures look when the shark is pregnant and include images of the eggs and pups from our own dissection. Currently have three sources that go over the physical changes that a dogfish experiences when pregnant as well as developmental stages that are prominent. Also mentions the pups and how they survive being birthed live. I will also be basing a lot of my information on the textbook used during lab, making sure the information I find is correct by having multiple sources with similar information.
External Sources:
Oceana - Spiny Dogfish https://oceana.org/marine-life/spiny
NOAA Fisheries https://www.fisheries.noaa.gov/species/pacific-spiny-dogfish
- sexual dimorphism & reproduction
- behavior
- diet
- habitat
- sociability
Areas of interest include Gills and Spiracles - looking more broadly.
Sources
- "Branchial mitochondria-rich cells in the dogfish Squalus acanthias"[1]
- "The The Development of the Spiracular Cartilages of the Spiny Dogfish, Acanthias vulgaris (Squalus Acanthias).[2] This is an older source, which has some good information about the spiracles.
- Ultrasound and physical models shed light on the respiratory system of embryonic dogfishes. [3]
- ^ Wilson, Jonathan M; Morgan, John D; Vogl, A.Wayne; Randall, David J (2002). "Branchial mitochondria-rich cells in the dogfish Squalus acanthias". Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology. 132 (2): 365–374. doi:10.1016/S1095-6433(02)00042-9.
{{cite journal}}: CS1 maint: date and year (link) - ^ El-Toubi, M. R. (1947). "The Development of the Spiracular Cartilages of the Spiny Dogfish, Acanthias vulgaris (Squalus Acanthias)". Biological Bulletin. 93 (3): 287–295. doi:10.2307/1537977. ISSN 0006-3185.
- ^ Tomita, Taketeru; Cotton, Charles F.; Toda, Minoru (2016). "Ultrasound and physical models shed light on the respiratory system of embryonic dogfishes". Zoology. 119 (1): 36–41. doi:10.1016/j.zool.2015.09.002 – via Elsevier Science Direct.
External Resources:
Encyclopedia Britannica https://www.britannica.com/animal/dogfish