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Killi-Data News (Summer) KILLI-DATA INTERNATIONAL Killi-Data News Volume 2, Issue 2, Pages 22–39, June 2017

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Genade: Killi-Data News (Summer) KILLI-DATA INTERNATIONAL Killi-Data News Volume 2, Issue 2, Pages 22–39, June 2017 ISSN 2495-330X Editorial Executive editor: Tyrone Genade (killifl[email protected]) Over the last three months several interesting and exciting pa- Editor: Jean H. Huber pers have been published. By now most of you have heard the Contributors: Jean Huber (text), Andy Patel (text), Mark Peterson (text), Nothobranchius fish poo news emanating from the Valenzano Mark Spinger (image), Stefano Valdesalici (text), Matheus Volcan (photos), lab. That paper is reviewed and certainly has repercussions Jerry Waskilak (photo) for the health of our captive fish. Polaçik et al have published Killi-Data International retains copyright and distribution rights to all contents of Killi- interesting data with ramifications as to how we breed and Data News unless otherwise claimed by the submitting author. incubate annual killifish. The big news in this issue is the paper from the Reznick Contents lab which Jean Huber reviews. The contents of that paper goes to the heart of the question of just what a killifish is. The Editorial ............................................. 22 phylogenies from Reznick et al may fundamentally transform In the News ......................................... 23 our understanding of the origin and evolutive timing of Cyp- Interesting Websites .............................. 23 rinodontiformes (including killifish). Once again, there are In the News.......................................23 several papers on on topics of genetics, Review of new research publications ................ 23 Fundulus heteroclitus hybrid zones, evolution and environmental toxicology. Research Reports ................................. 23 Again, there are new species of -group and Systematics, Taxonomy & Distribution .......... 24 Melanorivulus I think we can expect more species. There are three articles Killifish Biology ................................... 29 on the embryonic development of South American Annual Posters & Conference Abstracts .................. 38 fish: , and . Martin & Interesting Research .............................. 38 Austrofundulus Austrolebias Millerichthys Podrabsky review the concept of developmental arrest and define the terms diapause, delayed hatching etc. as well as review the knowledge of diapause learned from Austrofundu- lus. I hope you enjoy this issue and put the information to some use in your fishrooms and/or research projects. [Tyrone Genade] PublishedKilli-Data by NWCommons, News, Volume 2017 2, number 2, Summer 2017 22 1 Killifish Research Review, Vol. 2 [2017], Iss. 2, Art. 1 Interesting Websites The work of Jason Podrabsky is discussed. There is a nice photo comparing young and old, male and female, Austrofun- Andrew Thompson published a very interesting video dulus limnaeus. of Rivulus (Anablepsoides) holmiae spawning above the water level in mops: https://www.facebook.com/groups/ 1585735854987933/permalink/1984903501737831/. Having Review of New Research Publications trouble spawning your Rivulus species? Maybe you should drain the tank. Research Report Glednanda Gledison Fernanda has again published more George Maier Fund Grant Review, 2004–2016 Nunziata, C. YouTube videos of South American killifish and their Journal of the American Killifish Association, 50:33–64, 2017. biotopes: https://www.youtube.com/channel/UCglwiywhb_ The March-April issue of JAKA isn’t a book but doesn’t bh_iQBV_fPPgA. really fit into the other categories below. In this issue Charles Nunziata reviews the research output over the last twelve In The News years which were funded by the AKA’s George Maier Fund. Topics reported on are: UTA student receives NSF grant for research into ecologi- • Watter’s Nothobranchius fish habitats in the Great cal drivers of eye, brain size Limpopo Transfrontier Park. https://www.eurekalert.org/pub_releases/2017-04/uota- • Hrbek’s Rivulus of Venezuela usr042517.php • Normandin et al’s Distribution of Brachyrhaphis and A student from University of Texas, Shannon Beston, has Rivulus in Panama. won a National Science Foundation grant to study the ecologi- • Thompson’s evolution of diapause. cal drivers of eye and brain size. The subject of the research: • Bartons’ Jaw morphology and tooth structure of Cyprin- Rivulus hartii. odon of the Bahamas. • Brennan’s local adaptation of Fundulus heteroclitus. Evolution’s Quick Pace Affects Ecosystem Dynamics • Turner’s characterization of growth hormone genes. http://www.the-scientist.com/?articles.view/articleNo/49258/ • Collier’s biogeography of Rivulus isthmensis. title/Evolution-s-Quick-Pace-Affects-Ecosystem-Dynamics/ • Burge’s study of Fundulus heteroclitus and luciae. This news article reviews the work of the Reznick lab and • Gumm’s hybridization between Cyprinodon variegatus concerns the rapid evolution of guppies transfer to predator- and rubrofluviatilis. free streams. It goes on to discuss other evidence for rapid • Stallsmith’s survey of Rivulus in Panama. evolution in response to ecological change. • Nagy & Cotterill’s inventory of Nothobranchius in Katanga province. Update on popular fish model of development • Gatto’s study of wetland species. https://www.sciencedaily.com/releases/2017/05/ • Styga’s research into saltitorial locomotion of killifish. 170509084050.htm • Benignos’ report on habitat restoration and conservation https://nwcommons.nwciowa.edu/killiresrev/vol2/iss2/1Killi-Data News, Volume 2, number 2, Summer 2017 23 2 Genade: Killi-Data News (Summer) of endangered Mexican pupfish. Bragança & Costa, in 2011). Those findings are important The summaries are brief but well illustrated and references to because they extend the distribution of Rivulus cearensis (its the published research papers are given. [Tyrone Genade] distribution record is increased by about 77 km west, to the lower portion of Mundaú river, in Itapipoca) and they push to revise its conservation strategy which was described as crit- Systematics, Taxonomy & Distribution ically endangered by Costa & Vono, in 2009. Together with collections by European aquarists in 2010 of the species (one Ichthyofauna of Mundaú river basin, Ceará State, North- of them being Didier Pillet), this means, a good (but rare) eastern Brazil. Teixeira FK; Ramos TPA; Paiva RECd; news, that the species cannot be considered as critically en- Távora MA; Lima SMQ; & Rezende CF. Biota Neotropica, dangered anymore, even if Telton Ramos remains cautious Epub ahead of print, 2017. URL http://dx.doi.org/10.1590/ asking (pers. comm.) that more precise studies should still be 1676-0611-bn-2016-0174 performed to know if it is even of cearensis.[Jean Huber] Among the Brazilian museums, if the 3 major (Rio de Janeiro, Sao Paulo and Porto Alegre) which hold more than The origin and biogeographic diversification of fishes in 95% of the type-species of killifish are not taken into account, the family Poeciliidae. Reznick DN; Furness AI; Mered- recent dynamics have emerged in order to sample in detail ith RW; & Springer MS. PLOS ONE, 12:1–20, 2017. URL the fish fauna in their given territory aiming at cataloging https://doi.org/10.1371/journal.pone.0172546 the fishes of a basin. Usually killifish are not the main target This is a major work, not only for poeciliins (livebear- of those extensive collections because they are not riverine ers) but also for (oviparous) killifish because, for the latter fishes. group, it raises important questions with findings that are Sometimes the research and sampling team is also inter- more in line with recently disclosed killifish fossils (that will ested in Killifish and that gives the opportunity of attractive need to be tackled soon), and, for the former it proposes a findings. This is the case of Telton Ramos, Universidade Fed- time calibrated molecular tree of many species (and most eral da Paraíba. He is (with S. Ramos) at the origin of the species groups in livebearers including goodeids). The molec- discovery of Cynolebias parnaibensis (in 2009), and of Rivulus ular knowledge on poeciliins is greatly improved with more parnaibensis, in his territory. Recently in a collaboration with species studied and more sequences, all time calibrated. No- Universidade Federal do Ceará, new killifish samples were tably one issue is strongly confirmed: Xenodexia (viviparous) obtained by him (with R. Paiva, F. Keilo, and S. Ramos) in and Tomeurus (oviparous) are very primitive in poeciliins Ceara state, Mundaú river basin which is located at Center- (then a previous hypothesis, as strongly derived, based on North Ceará State and occupies a total area of 2,227 square osteological cladistics is now considered as obsolete. again km, including Estuário do Rio Mundaú Environmental Pro- molecular data and osteological data do not live easily to- tection Area. The collected cyprinodontiformes fishes were gether), but both genera are very much biogeographically identified as Rivulus cearensis (3 localities, placed by them apart! in Anablepsoides) [a species related to urophthalmus], a yet Results in poeciliins are surprising for at least 4 lineages: un-named Simpsonichthys sp. (Hypsolebias group, currently (1) Priapichthys where three groups of species are scattered under study) and a livebearer Poecilia sarrafae (described by in the tree pushing to a necessary revision and rediagnosis of PublishedKilli-Data by NWCommons, News, Volume 2017 2, number 2, Summer 2017 24 3 Killifish Research Review, Vol. 2 [2017], Iss. 2, Art. 1 the genus, if valid (and identification move of some species regretted because
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  • Endangered Species

    Endangered Species

    FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S.