Presentation on theme: "Planning for a new guide on Louisiana’s inland fishes"— Presentation transcript:
1 Planning for a new guide on Louisiana’s inland fishes Henry L. Bart, Jr.Tulane University Museum of Natural HistoryBelle Chasse, LA 70037Frank PezoldMuseum of Natural History, University of LouisianaMonroe, LA 71209
2 Neil H. Douglas’ (1974) Fishes of Louisiana First comprehensive bookon freshwater fishes in thestate.Covered all of the diversityknown at the time.Included dichotomous keysand accounts on each ofthe species.Discussed drainage basinsand geology of the stateNot unlike other fish guides ofits time: small, compact, handyfor use in the field.
4 Species account in Douglas’ Fishes of Louisiana Pen and inkillustrationof speciesDistributioninformationHand-madeDistributionmapTaxonomicinformationVery little information about biology
5 Species account in Boschung et al.’s Fishes of Alabama Color illustrationState and overalldistributionGeneral descriptionand characteristicsSimilar speciesHabitatBiologyConservationSystematics
6 Boschung et al.’s Fishes of Alabama Illustrated keysshowing whatcharacters usedin couplets looklike on the fish.
7 What do we plan to do about it? Want to give the people of Louisiana a book that is as massive as theserecent books, has all of the special features, and more…Recipes?, importance of fish to Louisiana culture?, fishing jokes?Have to educate people about the rich variety of non-game fishes in thestate.
8 A lot has changedDouglas (1974) treated 148 species of freshwater and diadromous fishesDouglas and Jordan (2002) reported 170 species (still limited to freshwater and diadromous fishes)Our tally includes 219 species: 165 freshwater or diadromous species and 54 marine fishes that spend significant amounts of time in freshwater…
11 Some things gained Grass carp Ctenopharyngodon idella Bighead carp Hypophthalmichthys molitrixBlack carp Mylopharyngodon piceusSilver carp Hypophthalmichthys molitrix
12 Fishes of Louisiana’sInland WatersHenry L. Bart Jr. and Frank Pezold
13 Steps in the book building process Assemble comprehensive database of all fish occurrence records in LA, based on museum holdings (vouchered records) and verifiable records from other sources.Georeference all occurrence records.Use occurrence/effort maps to identify areas of the state in need of additional survey to document fish changes. Conduct surveys (photography).Analyze abundance/occurrence trends for all included species and to produce updated distribution maps.Update conservation status of rare and protected fishesOrganize task of writing the book: use technology to build keys; recruit authors/experts for species accounts; hire artists.
14 Use technology to simplify map production Used GEOLocate to georeference 7,340 uniquelocality strings (23,044 lots) from the ULM collection.6,576 localities were georeferenced with varying levelsof accuracy (89.4%).Total time was 1 hour and 52 minutes.Coordinates need to visualized/corrected.
15 Electronically produced distribution maps Prior to 19901990 to presentWe were able to generate these maps based on data in the TUMNH andULM fish collections; show areas of the state that need to be resurveyedto determine current status of fishes.
16 TimetableWe anticipate that the overall project will take 5-10 years to complete.Intend to publish a number of intermediate reports during this process, including an updated species list, distribution atlas, and various data analysis summaries, to inform the scientific community and general public of our progress.Website will be established for all products and special education resources.
17 Needs $$$ Time ($$$ = Time) Publisher ( ) Have the expertise and most of the necessary data$$$Time($$$ = Time)Publisher( )
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