Pots / Traps / Baskets Catch Sampling

Slides:

Advertisements

Similar presentations

Ecosystem Processes ECOSYSTEM DEFINITION

Advertisements

Science Behind Sustainable Seafood Age Matters! Alaska Fisheries Science Center.

UNIT 6b: SOLOMON ISLAND COASTAL FISHERIES. 2 Coastal fisheries Activity 6.1: Assess prior knowledge by class discussion of their understanding of coastal.

How fishing gears affect the ecosystem

Pelagic Longline Catch Composition Image:

Hawaiian Fisheries Bycatch Presentation by Mr. Jeremy Wilson, NOAA-NMFS, 2 October, 2007 Material not yet published does not represent the formal policies.

Trawl – Catch Composition Sampling Joël Prado - FAO/FIIT

INSERT INSTRUCTOR Name Trawl – Total Catch Estimation & Effort Joël Prado - FAO/FIIT

Marine Turtle By-catch Reduction in Long-line Fisheries in the Eastern Pacific Ocean Moises Mug (1), Carlos Drews (2) (1) Fisheries Program Leader for.

Survey Design Steps in Conducting a survey.  There are two basic steps for conducting a survey  Design and Planning  Data Collection.

Statistical Methods Descriptive Statistics Inferential Statistics Collecting and describing data. Making decisions based on sample data.

Data reporting Compliance workshop: Collection and reporting of Fisheries data to IOTC Mauritius, March 2014.

Demersal Longline Fishing Procedures & Gear Trinidad longliner, 2005, FAO Fisheries Technical Paper. No. 482

September 15, 2015 NMFS Observer Programs Presentation to the Council Coordination Committee.

Solomon Trawl – Gear description (fish & shrimp) Joël Prado - FAO/FIIT

Pierre Meke, 2009 Biological Data – Specimen Collection, Tags, Identification

Evaluation of Turtle Excluder Device in the Scallop Trawl Fisheryf Daniel Lawson and Joe DeAlteris – University of Rhode Island, Dept. of Fisheries Jeff.

REPORT OF THE 2007 MEETING OF THE SUB- COMMITTEE ON ECOSYSTEMS (Madrid, Spain - February 19 to 23, 2007)

Scientific Observer Program Goals & Objectives Thanks to L. Chilton for initial development of this presentation.

So Many Forms! What forms to bring on each trip, and when to use them.

Fishing = Harvesting = Predation Predator-Prey Interaction +- with Humans as Predator Very high-tech hunting- gathering –Fast boats –Sonar, fish finders.

Pelagic Longline Fishing Procedures & Gear

Pelagic Longline Fishing Procedures & Gear

Pelagic Longline Set & Haul Information Image:

Report of Chinese Observer Program in the Tropical Eastern Pacific Ocean in 2006 Xiao-jie Dai, Liu-xiong Xu and Li-ming Song Shanghai Fisheries University,

Fisheries in the Seas Fish life cycles: Egg/sperm pelagic larvaejuvenile (first non-feeding – critical period – then feeding) (first non-feeding – critical.

Pierre Meke, 2009 Biological Data – Length Frequency Sampling

Fishing Methods I got 99 problems, but a fish ain’t one!

Purse Seine Set Information & Sampling. Objectives Describe how data from the Set Information and Catch Composition form can be used Describe the preferred.

Random Sampling - Concepts  How many beans are in this 5-gallon jar?  how many by type?

Methods of Measuring Absolute Density Total counts - count all the organisms present in a population Transect or quadrat sampling - counts along a known.

Oceans 11. What is “fishing”? Exploitation of marine organisms for sustenance, profit, or fun. Examples: –Fish- cod, halibut, salmon, redfish, stripped.

Mrs Nafisat Bolatito IKENWEIWE (PhD) DEPARTMENT OF AQUACULTURE AND FISHERIES MANAGEMENT UNIVERSITY OF AGRICULTURE, ABEOKUTA FISH STOCK ASSESSMENT

INSERT INSTRUCTOR Name Trawl – Gear description (fish & shrimp) Joël Prado - FAO/FIIT

Fishing Gear - Overview

Trawl – Total Effort & Catch Estimation Joël Prado - FAO/FIIT

The Observer Logbook: Documenting your time at sea.

PARTICIPANTS NCMR (Responsible Institute), IMBC [Greece] IREPA[Italy] U. Barcelona, U. Basque, UPO[Spain] EFIMAS MEETING NICOSIA CRETE 2004 APRIL

1 PIRO’s Pelagic Ecosystem Management Needs PIFSC External Science Review April 5, 2016.

Commercial Fisheries Bycatch Monitoring on Utah Lake David Tinsley and Jackie Watson Utah Division of Wildlife Resources.

Day 4, Session 1 Abundance indices, CPUE, and CPUE standardisation

SAMPLING TECHNIQUES N. JAYAKUMAR Assistant professor Dept. of Fisheries Biology and Resource Management Fisheries college & Research Institute, Thoothukudi-8.

Statistics Statistics is that field of science concerned with the collection, organization, presentation, and summarization of data, and the drawing of.

Statistics in Management

INTERACTION OF MARINE TURTLES WITH trammel nets

Estimation of Catches of Non-Target Species Using Observer Data

Observational Study vs. Experimental Design

HCR Evaluation Guyana Seabob.

FCWC-FIRMS workshop on fisheries inventories

Modular Approach to logbook in the WECAFC Region

Fisheries Management Scientists study fish stocks to determine estimates of the population count and the reproductive biology of the species This information.

Determining Population Size

SESSION 11 Observer Data Auditing

Fisheries and the World around Us

WCPFC Ecosystem & by-catch Conservation and Management Measures

Purse Seine Daily Activity Log

Marine Recreational Information Program (MRIP) Regional Implementation Plan for the U.S. Caribbean Region SERO Proposed Amendment to the Reef Fish FMP.

Demersal Longline Set & Haul Information and Catch Composition

Observer data analyses: bycatch composition

1.2 Sampling LEARNING GOAL

Purse Seine Floating Object Record

Estimate the # of objects in each jar

Day 1, Session 4 Fisheries data collection for stock assessment

OBSERVER DATA VIEWER Reference Guide

Basic Statistical Concepts

Marine Debris Photograph: Eduardo Munoz/Reuters

Trawl – Species Composition Sampling

Local Habitat Sampling

Stock Assessment section – use of tuna data

Presentation transcript:

Pots / Traps / Baskets Catch Sampling Drawing: http://www.wildlifenews.alaska.gov/index.cfm?adfg=wildlife_news.view_article&articles_id=140 Photo:http://coastalvoices.blogspot.com/2009_09_01_archive.html http://coastalvoices.blogspot.com/2009_09_01_archive.html http://www.wildlifenews.alaska.gov

Data collection priorities Estimate effort and total catch for each gear deployment; Identify every individual caught on each randomly selected set (or subsample within the set) and estimate percent retained; Collect biological information on target and other species as requested; Record all sightings and interactions with marine mammals and sea turtles; Record vessel and fishing gear characteristics.

Objectives X Demonstrate your ability to sample and complete the Catch Composition form

Defining a set Longline of baskets – total baskets connected by one line Deployed individually – coordinate w/ Captain 1 set of 18 3 sets of 6 6 sets of 3 ◘ ◘ ◘ ◘ ◘ ◘

Choosing a set to sample Same general rules as for demersal longline Use random sample table if necessary

Choosing pots (baskets) to sample Population: all baskets in 1 set Sampling unit: single basket Decide on how much to sample (e.g. 1/3 of baskets) – spatial sample frame Choose sample method - random or systematic random Select random numbers Count/weigh everything from baskets sampled ◘ ◘ ◘ ◘ ◘ ◘

Catch Composition Form

Catch Composition Form Weights Actual Average weight * total count Estimate

Activity Questions on catch composition sampling / random sampling or the form? Activity #2 Groups of 2 Sample 20% (Systematic or Random) Describe how you selected pots Tally sample & complete Catch Comp form

Tally Sampling Activity Key to “symbols” Shark Purple body Stingray Redfish Flatfish Octopus Snail Starfish 14

Pot #1 1 Shark 3 Snail 8 9 2 7 3 4 6 5 1 10

Pot #2 2 Purple body 6 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #3 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #4 7 Octopus 17 Snail 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #5 18 Snail 8 9 2 7 3 4 6 5 1 10

Pot #6 5 Redfish 2 Flatfish 2 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #7 4 Shark 1 Stingray 2 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #8 1 Shark 3 Flatfish 1 Octopus 8 9 2 7 3 4 6 5 1 10

Pot #9 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #10 1 Shark 1 Snail 8 9 2 7 3 4 6 5 1 10

Pot #11 2 Flatfish 5 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #12 8 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #13 1 Stingray 2 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #14 1 Purple body 2 Snail 8 9 2 7 3 4 6 5 1 10

Pot #15 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #16 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #17 1 Shark 2 Flatfish 17 Snail 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #18 2 Redfish 1 Octopus 8 9 2 7 3 4 6 5 1 10

Pot #19 1 Stingray 1 Redfish 4 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #20 2 Shark 7 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #21 4 Octopus 3 Snail 8 9 2 7 3 4 6 5 1 10

Pot #22 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #23 1 Purple body 4 Snail 8 9 2 7 3 4 6 5 1 10

Pot #24 1 Shark 1 Redfish 4 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #25 1 Shark 8 Snail 8 9 2 7 3 4 6 5 1 10

Pot #26 2 Purple body 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #27 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #28 2 Octopus 11 Snail 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #29 12 Snail 8 9 2 7 3 4 6 5 1 10

Pot #30 4 Redfish 1 Flatfish 2 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #31 4 Shark 1 Stingray 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #32 1 Shark 1 Flatfish 5 Octopus 8 9 2 7 3 4 6 5 1 10

Pot #33 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #34 1 Shark 1 Snail 8 9 2 7 3 4 6 5 1 10

Pot #35 3 Flatfish 5 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #36 7 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #37 2 Stingray 3 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #38 1 Purple body 2 Snail 8 9 2 7 3 4 6 5 1 10

Pot #39 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #40 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #41 4 Shark 1 Flatfish 13 Snail 1Starfish 8 9 2 7 3 4 6 5 1 10

Pot #42 2 Redfish 3 Octopus 8 9 2 7 3 4 6 5 1 10

Pot #43 1 Stingray 1 Redfish 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #44 2 Shark 1 Starfish 8 9 2 7 3 4 6 5 1 10

Pot #45 4 Octopus 3 Snail 8 9 2 7 3 4 6 5 1 10

Pot #46 EMPTY 8 9 2 7 3 4 6 5 1 10

Pot #47 1 Purple body 7 Snail 8 9 2 7 3 4 6 5 1 10

Pot #48 1 Shark 2 Redfish 7 Starfish 8 9 2 7 3 4 6 5 1 10

References Hanrahan, J., D. J. Melindy, and J. V. Pelrine. 1997. At-sea Observer Program Operations Manual: A Training Aid and Field Reference. National At-sea Fisheries Observer Program, Department of Fisheries and Oceans, Ottawa, Canada. Slack-Smith, R. J. 2001. Fishing with traps and pots. FAO Training Series No. 26, FAO, Rome. Watson, R., E. Hoshino, J. Beblow, C. Revenga, Y. Kura, and A. Kitchingman. 2004. Fishing Gear Associated With Global Marine Catches. Fisheries Centre Research Reports 12.

Large traditional potters for fishing spiny lobster off Mauritania - http://www.fao.org/fishery/vesseltype/230/en http://www.fao.org/fishery/vesseltype/230/en Courtesy of Joël Prado - FAO/FIIT