WF4133 Fisheries Science. Housekeeping. Random selection from lab WHAT EXACTLY IS FISHERIES SCIENCE?

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1 WF4133 Fisheries Science WHAT EXACTLY IS FISHERIES SCIENCE? Module 1:Introduction to class, fisheries profession, & fisheries science Class 2 Random selection from lab 25 big fish & 75 small fish 0.25 & 0.75 Selected 18 big fish 18/30= small 12/30=0.4 Selection bias 0.6/0.25 = 2.4 x likely to select 0.4/0.75 = 0.5 x likely to select Housekeeping No class/lab next Monday Brad will lead class Wednesday Volunteers Volunteer form Now is the time to be looking for jobs State agency websites Fisheries.org Usajobs.gov Updated class schedule here Paid Internship Opportunities Coastal Research and Extension Please see the internship opportunities below and forward to anyone that might be interested in gaining coastal research and extension experience. The primary focus of these internships is conducting coastal restoration field research and communicating research to end users. If you are an undergrad that graduates after December 2018, please apply for the first opportunity. If you graduate or graduated prior to December 2018, please apply for the second opportunity. 1) Summer Undergraduate Internship/Apprenticeship: Please see the link below for a paid undergrad internship (apprenticeship) opportunity. This position will be based at the Weeks Bay National Estuarine Research Reserve in Fairhope, AL. All of the internship details and application instructions can be found in the link, but please me if you have any questions. Link: 2) Post graduate or undergraduate internships (several): If you are ineligible for the internship opportunity above (e.g., graduate prior to December 2018 or have already graduated), please me your CV/resume, contact info for 2 references, and a brief (max of 250 words) letter stating what you hope to gain from this internship. These positions will be based in either Biloxi, MS or Fairhope, AL. We are flexible on start and end dates, but the potential work period will likely be between March and December The scope of work for this opportunity will be similar to the description in the link above, but please me if you have any questions. WHAT IS FISHERIES? 1

2 State of World Fisheries Ray Hilborn University of Washington Mentally keep track of terms and related terms you frequently hear State of World Fisheries Part I Frequent terms? State of World Fisheries The classic model State of World Fisheries Part I State of World Fisheries Part II State of World Fisheries Part III Links on class website The classic model The boxes are related Fish have social & economic value Value Fish Values Fish need habitat Habitat Fish can influence habitat 2

3 What is fisheries? What is fisheries? Fish have social & economic value Value Fish Fish need habitat Fish can influence habitat Habitat Fisheries types 1. Culture 2. Capture Types of culture fisheries 1. Production 2. Ranching 3. Farming 4. Enhancement & mitigation 5. Conservation Production Intensive culture to produce biomass & protein Trout Catfish Production Long growing seasons Efficient protein catfish, rainbow trout Ponds on Snake River, ID Ponds on MS Delta 3

4 Ranching Fish are prduced in hatchery & released in ocean to be harvested when return. Salmon Enhancement & mitigation Fish produced to enhance a population or mitigate for loss of habitat Conservation Fish produced to reestablish population Private John Allen National Fish Hatchery, Tupelo Types of capture fisheries 1. Subsistence 2. Recreational 3. Commercial 1. Industrial 2. Semi industrial & Modern artisanal 3. Artisanal Subsistence fisheries A fishery where the fish caught are shared and consumed directly by the families and kin of the fishers rather than being bought by intermediaries and sold at the next larger market. Pure subsistence fisheries are rare as part of the products are often sold or exchanged for other goods or services 4

5 Recreational fisheries Harvesting fish for personal use, leisure, and challenge (e.g. as opposed to profit or research). Recreational fishing does not include sale, barter or trade of all or part of the catch. Commercial fisheries Fisheries undertaken for profit and with the objective to sell the harvest on the market, through auction halls, direct contracts, or other forms of trade. Commercial fisheries & investment Commercial fish species in MS FW Boat size (tonnes) Buffalo Carp Paddlefish Gar Catfish Technological investment/ man on board Commercial fish species in MS SW Flounder Red drum Spotted seatrout Shrimp Oysters Industrial fisheries Capital intensive fisheries using relatively large vessels with a high degree of mechanization and that normally have advanced fish finding and navigational equipment. Such fisheries have a high production capacity and the catch per unit effort is normally relatively high. 5

6 Modern artisanal & Semi industrial Labor intensive fisheries using relatively small crafts (if any) and little capital and equipment per person on board. Most often family owned. May be commercial or for subsistence (see below). Usually low fuel consumption. Often equated with artisanal fisheries. Artisanal Typically traditional fisheries involving fishing households (as opposed to commercial companies), using relatively small amount of capital, relatively small fishing vessels, making short fishing trips, close to shore, mainly for local consumption. Science is the acquisition of reliable but not infallible knowledge of the real word, including explanations of the phenomena. WHAT IS SCIENCE? Science is not without error, but the scientific method allows us to learn from our mistakes. Science is based on empirical evidence, NOT value judgments. Supported by evidence! 6

7 Science should be objective, not subjective. Peer-review process helps maintain scientific integrity. 7