Browsing Friday Harbor Laboratories Student Research Papers by Title
Now showing items 118-137 of 705
-
Dangers for Unprotected Embryos on the Benthos
(Friday Harbor Laboratories, 2014-08)One of the arguments for the persistence of planktonic larval stages in the life cycles of benthic marine invertebrates is that pelagic larvae experience a release from predation when they move off the benthos and into ... -
Dangers for Unprotected Embryos on the Benthos
(Friday Harbor Laboratories, 2014-10)One of the arguments for the persistence of planktonic larval stages in the life cycles of benthic marine invertebrates is that pelagic larvae experience a release from predation when they move off the benthos and into the ... -
Denticle morphology in the Pacific Spiny Dogfish, Squalus suckleyi
(2022)To learn more about the denticle morphology and potential for replacement in the denticles of Squalus suckleyi, the Pacific spiny dogfish, a survey of denticle shapes using scanning electron microscopy (SEM) was conducted. ... -
Determining Magnetic Sensitivity of Armina californica; and of Neurons Homologous to those in Tritonia tetraquetra (a.k.a. T. diomedea)
(Friday Harbor Laboratories, 2015-09)The gastropod nudibranch Tritonia tetraquetra is a convenient model organism for neurobiologists. It appears unique among nudibranchs in its ability to detect and orient to the magnetic field of Earth, which makes it an ... -
A Development Series of the Soft Sculpin Psychrolutes sigalutes
(Friday Harbor Laboratories, 2014-12)The development of larval fishes is a chronically understudied, critically important field, which offers broad insight into a defining period in the life history of fishes. Examinations of development shed light on the ... -
Developmental differences in Monterey Sea Lemon (Doris montereyensis) veliger larvae with temperature variation
(2019)As climate changes, many organisms are affected, and affect their biomes as a result. Nudibranchs, a ubiquitous group of marine organisms, are known for their beautiful colors, but not much for their developing forms. ... -
Developmental Effects of Predator Cues on Dendraster excentricus Larvae: The Effects of Pugettia producta Effluent and Crustacean Dominant Plankton Effluent
(2019)Previous findings supporting increased cloning in Dendraster excentricus (D. excentricus) larvae as a response to predator cues, in particular fish slime. Such findings report a “visual predator hypothesis”, suggesting ... -
Diatom silicification changes in high pCO2 seawater: a mesocosm experiment
(Friday Harbor Laboratories, 2013-06)Diatoms contribute significantly to the transfer of dissolved organic carbon from the surface ocean to the deep in a system called the biological pump. Understanding how diatoms silicify (incorporate silica into their cell ... -
Diet and Feeding Behavior in Ammodytes personatus and Other Pelagic Fish
(2016)Like many marine ecosystems, the San Juan Archipelago has several critical species of forage fish in the middle trophic level. These species play a critical role in energy transfer. This study examines variations in diet ... -
Dietary and Spatial Analysis of Salmon in San Juan Archipelago, Puget Sound, and Alaska
(2023)This study aims to compare three different species of salmon (king, silver, and pink) in three different regions (San Juan Archipelago, Puget Sound, and Alaska) to add to a six-year-long diet and spatial analysis data set. ... -
Dietary and Spatial Analysis of Salmon in the San Juan Archipelago and the Salish Sea
(2021)Salmon in the Salish Sea and the San Juan Archipelago are important keystone species with both ecological and commercial value. Analysis of the diets of king, pink, and silver salmon between the years of 2018 to 2021 suggest ... -
Dietary preferences of the green sea urchin, Strongylocentrotus droebachiensis, for dried macroalgae
(2022-05)The harvesting of sea urchins for gonad production has taken place worldwide and is increasing in demand. However, formula feed can be costly and difficult to obtain. Here we investigate the dietary preferences of green ... -
Difference in Vigilance Rates Between Harbor Seal (Phoca vitulina) Mothers with a Pup and Lone Adults
(Friday Harbor Laboratories, 2014-08)Knowing if rates of vigilance between mother harbor seals and lone adults (Phoca Vitulina) differ in any way is essential in moving conservation efforts in the right direction. We used focal individual and scan samples ... -
Difference in Vigilance Rates Between Harbor Seal (Phoca vitulina) Mothers with a Pup and Lone Adults
(Friday Harbor Laboratories, 2014-08)Knowing if rates of vigilance between mother harbor seals and lone adults (Phoca Vitulina) differ in any way is essential in moving conservation efforts in the right direction. We used focal individual and scan samples of ... -
Differences in gonad somatic indices with depth in Pacific Northwest invertebrates
(Friday Harbor Laboratories, 2012-06)Drift algal material exported from kelp beds plays a significant role in nearby ecosystems. Phenotypic traits such as gonad index and jaw diameter can be indicators of diet consistency and nutrient uptake and thus can ... -
Differences in gonad somatic indices with depth in Pacific Northwest invertebrates
(2012)Drift algal material exported from kelp beds plays a significant role in nearby ecosystems. Phenotypic traits such as gonad index and jaw diameter can be indicators of diet consistency and nutrient uptake and thus can ... -
Differential grazing of selected marine algivorous amoebae on microalgae and bacteria
(Friday Harbor Laboratories, 2012-10)Production of biofuels derived from the mass of photosynthetic organisms is gaining attractiveness as climate change, resource shortage, and pollution events make it less sensible to continue current modes of fossil fuel ... -
Digestion of algae by red urchins leads to increased green shore crab consumption rate
(Friday Harbor Laboratories, 2013-06)Spatial subsidies play a significant role in nearshore ecosystems. In the form of drift algae, these subsidies are not only important to larger herbivores but also smaller invertebrates as a food source. The goal of this ... -
Directional Movement of Urticina crassicornis in the Presence of a Conspecific
(Friday Harbor Laboratories, 2014-07)Many sea anemones aggregate, including Urticina crassicornis (common name: the Christmas or painted anemone). This species occurs on the docks and shores of the Friday Harbor Laboratories as well as the intertidal zones ...