Friday, March 1, 2024
Friday, September 8, 2023
The Gill-Oxygen Limitation Theory (GOLT): current trends and challenges
UBC Institute for the Oceans and Fisheries (IOF) Seminar
Friday, 15 September 2023 @ n11:00am - 12 noon
Hybrid: In-person (AERL Theatre, UBC Vancouver) and online via Zoom.
Friday, 15 September 2023 @ n11:00am - 12 noon
Hybrid: In-person (AERL Theatre, UBC Vancouver) and online via Zoom.
Please RSVP at: ( https://oceans.ubc.ca/rsvp-iof-seminars/ )
IOF community members (students, faculty and staff) do not need to RSVP for this seminar series
The Gill-Oxygen Limitation Theory (GOLT): current trends and challenges
Atlantic horse mackerel. Photo by Kulac, Wikimedia Commons.
World-renowned fisheries scientist, Dr Daniel Pauly will discuss the Gill-Oxygen Limitation Theory (GOLT).
GOLT provides mechanisms for key aspects of the biology (food conversion efficiency, growth and its response to temperature, the timing of maturation, and others) of water-breathing ectotherms (WBEs). The GOLT’s basic tenet is that the surface area of the gills or other respiratory surfaces of WBE cannot, as two-dimensional structures, supply them with sufficient oxygen to keep up with the growth of their three-dimensional bodies. Thus, a lower relative oxygen supply induces sexual maturation, and later a slowing and cessation of growth, along with an increase of physiological processes relying on glycolytic enzymes and a declining role of oxidative enzymes. Because the “dimensional tension” underlying this argument is widely misunderstood, emphasis is given to a detailed refutation of objections to the GOLT. This theory still needs to be put on a solid quantitative basis, which will occur after the misconceptions surrounding it are put to rest.
Dr. Daniel Pauly is currently the Principal Investigator of the Sea Around Us initiative, a large research project devoted to identifying and quantifying global fisheries trends. He is also a Killam professor at the University of British Columbia’s Institute for the Oceans and Fisheries.
The concepts, methods and software which Daniel Pauly led and co-developed are documented in over 1000 scientific and general-interest publications, and are used throughout the world. This applies to the Ecopath modelling approach and software and FishBase, the online encyclopedia of more than 30,000 fish species, which was recently complemented by SeaLifeBase. He is a recipient of numerous awards, including the Tyler Prize for Environmental Achievement, the International Cosmos Prize, the Volvo Environment Prize, the Nierenberg Prize and the Frontiers of Knowledge Award in Ecology and Conservation Biology. He was named France’s Chevalier de la Legion D’Honneur in 2017.
Dr. Daniel Pauly is University Killam Professor, UBC Institute for the Oceans and Fisheries Principal Investigator, Sea Around Us
Wednesday, August 30, 2023
Wednesday, August 16, 2023
Sustainable sablefish farming in Puget Sound … something new or the same old story?
Part of the process of innovation is the culture's adoption of technology. The negative externalities of environmental pollution and the spread of disease to wild and/or native fish stocks are reasons for negative public perceptions of modern aquaculture.
While the resulting political response is obvious - the ban on commercial net pen fish farms in Puget Sound - numerous civil society organizations like the ASC and the Monterey Bay Aquarium's Seafood Watch have an obvious stack in animal health and protection of the natural environment - the obvious political ambitions of Hilary Franz aside.
Protection of the natural environment and animal health are good business practices. If indeed some things never change, perhaps there is something new …
Monday, July 31, 2023
Port of Everett Inks Deal with Maritime Institute to Bring Mariner Training Courses to Washington State
The Maritime Institute has signed a new 10-year lease to locate its newest mariner training facility at the Port of Everett’s Waterfront Place .
The new satellite at the Port of Everett will be the company’s first in Washington state. It currently hosts main campuses in Norfolk, Virginia and San Diego, California, plus satellite locations in Alameda, California, and Honolulu, Hawaii.
Courses are anticipated to begin in January 2024.
Located at 1130 West Marine View Drive, Port of Everett’s Waterfront Place is also home to the headquarters for Off-Planet Research, which opened here in 2021.
The Maritime Institute has main campuses in Norfolk, Virginia, and San Diego, California, plus satellite locations in Alameda, California and Honolulu, Hawaii. The new satellite location at the Port of Everett will be the company’s first in Washington.
The company has trained mariners for almost 50 years, working with government organizations, ship operators and maritime unions, including the U.S. Navy, Military Sealift Command, Crowley, NOAA, Sailor’s Union of the Pacific, Marine Fireman’s Union, Disney Line Cruises, Foss Maritime and Washington State Ferries.
The Institute offers 150+ vessel operation courses certified by the U.S. Coast Guard, U.S. Navy and Global Wind Organization. Through its state-of-the-art facilities with computer simulation equipment, mariners receive hands-on training to earn job certifications. Courses range from basic to advanced.
One of the key programs to be expanded in Everett is Maritime Bootcamp - a program that in just four weeks provides the training necessary to put participants with little to no experience on a career pathway in maritime.
The Maritime Institute has leased nearly 6,000 square feet of interior and exterior light industrial space at the Port’s Maritime, Exploration and Innovation Complex located in the Craftsman District at Waterfront Place.
For more information, contact Catherine Soper, Port of Everett Communications & Marketing Director, at catherines@portofeverett.com.
AnimalCam
I have a Campark T45 Trail Camera which I've used several times in local parks. So far, I've quite the collection of knighthood cats. It turned out to be a calibration exercise in the domestic cats tend to hold to a regular route and keep some semblance of a schedule. Even at night, the camera takes clear images and identification of induvial animals is possible. Each image is time-stamped as well.
Lyet et al., “Estimating Animal Density Using the Space-to-Event Model and Bootstrap Resampling with Motion-Triggered Camera-Trap Data.”
Monday, July 24, 2023
AquaSat: A unified dataset of in situ water quality data with Landsat matchups
Hacking Limnology 2023 Day 1: Remote Sensing
AquaSat: A unified dataset of in situ water quality data with Landsat matchups
Matthew RV Ross (@MagicalSystems; Colorado State University)
"Remote sensing models of water quality can be improved by training and validation on larger data sets of coincident field and satellite observations, here called matchups. To facilitate model development and deeper integration of remote sensing into inland water science, we have built AquaSat, the largest such matchup data set ever assembled. AquaSat contains more than 600,000 matchups, covering 1984–2019, of ground-based total suspended sediment, dissolved organic carbon, chlorophyll a, and Secchi disk depth measurements paired with spectral reflectance from Landsat 5, 7, and 8 collected within ±1 day of each other. To build AquaSat, we developed open source tools in R and Python and applied them to existing public data sets covering the contiguous United States, including the Water Quality Portal, LAGOS-NE, and the Landsat archive. In addition to publishing the data set, we are also publishing our full code architecture to facilitate expanding and improving AquaSat."
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