DOCSLIB.ORG

Effects of Food and Temperature on Survival and Development in the Peppermint Shrimp Lysmata Wurdemanni

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Effects of Food and Temperature on Survival and Development in the Peppermint Shrimp Lysmata Wurdemanni FAU Institutional Repository http://purl.fcla.edu/fau/fauir This paper was submitted by the faculty of FAU’s Harbor Branch Oceanographic Institute. Notice: ©1998 World Aquaculture Society. This manuscript is an author version with the final publication available at http://www.wiley.com/WileyCDA/ and may be cited as: Zhang, D., Lin, J., & Creswell, R. L. (1998). Effects of food and temperature on survival and development in the peppermint shrimp Lysmata wurdemanni. Journal of the World Aquaculture Society, 29(4), 471‐476. doi:10.1111/j.1749‐7345.1998.tb00671.x JOURNALOFTHE Vol. 29, No. 4 WORLD AQUACULTURE SOCIETY December, 1998 Effects of Food and Temperature on Survival and Development in the Peppermint Shrimp Lysmata wurdemanni DONGZHANG AND JUNDALIN' Department of Biological Sciences, Florida Institute of Technology, 150 West Universiw Boulevard, Melbourne, Florida 32901 -6988 USA R. LEROYCRESWELL Aquaculture Division, Harbor Branch Oceanographic Institution, Inc., 5600 US I North, Fort Pierce, Florida 34946 USA Abstract.-The effects of four kinds of foods (Ar- in captivity. Currently, all cleaner shrimps remia nauplii, rotifer, and microalgae Chaetoceros for aquarium industry are collected from gracilis and Isochrysis galbana) and four temperature the natural environment. The effects of re- regimes on survival and development of larval Lys- mata wurdemanni, a marine ornamental shrimp, were moval of them from the coral reef ecosys- determined. The larvae fed with Chaetoceros or Iso- tem cause concern. The gap between supply chrysis only survived for a maximum of 17 d, before and demand is expected to be reduced by developing to zoea IV. The survivorship of the larvae aquaculture. fed with Artemia nauplii or rotifer from zoea I1 to post- larvae was 66.7% and 68.9%. respectively, without Efforts to culture Lysmafa under artificial significant difference (P > 0.05). But larvae fed with conditions have been made. Reproductive Artemia nauplii grew significantly (P < 0.05) faster biology, broodstock nutrition, and devel- than those fed with rotifer. Larvae fed with Artemia opment of different life stages in L. debel- nauplii reached postlarvae in 29-32 d, compared with ius and L. ambionensis have been studied 32-36 d in the rotifer treatment. Artemia nauplii are et also suitable food for the postlarvae and juveniles of (Fletcher al. 1995; Simoes et al. 1998a, L. wurdemanni. The 30 postlarvae fed on Artemia nau- 1998b). Debelius (1984) reared the larvae plii all survived to reach sexual maturity in 50 to 70 of L. seticaudata to postlarvae. Blanchard d, growing from about 7 to 28 mm in total length. The (1992) reared L. grabhami larvae, but failed effects of four temperature regimes on larval devel- to culture them to postlarval stage. The lar- opment of L. wurdemanni was also investigated. The vae of L. debelius and L. amboinensis are duration (mean ? SD d) to the postlarvae at temper- atures of 26 C (37.4 ? 5.4) and of 26-30 C daily (40.2 able to feed on rotifers or small strain Ar- ? 5.8) was significantly (P < 0.05) longer than that at temia salina (Fletcher et al. 1995). L. wur- 28.5 C (29.3 2 4.8) and at 27-29 C daily (28.7 t 3.5). demunni larvae fed with rotifer (before day 14) and Artemia nauplii have also been cul- The peppermint shrimp Lysmafa wurde- tured successfully under artificial condi- manni occurs naturally along the Atlantic tions (Crompton 1992). The optimization of and Caribbean coasts of North and South feeding regimes used during the shrimp lar- America from New Jersey to Brazil (Wil- val rearing process is a major objective of liams 1984). It is commonly associated with the larviculture operation. Effect of differ- hard coastal substrates such as jetties, rock ent foods on the larval survival and devel- outcropping, piers and buoys, and in asso- opment has not been tested for L. wurde- ciation with tubular sponges, especially of manni. To develop rearing techniques for the genus Aplysina (Sefton and Webster the species, we conducted a study using 1986). The genus Lysmafu is among the four different diets, Arfemia nauplii, rotifer many cleaner shrimps that are popular with Brachionus plicafilis, microalgae Chaefo- aquarists, because of their coloration and ceros gracilis and Isochrysis galbana. Ar- the ease with which they can be maintained remia nauplii were also tested as a potential food for the postlarvae and juveniles. I Corresponding author. It is well known that temperature affects Q Copyright by the World Aquaculture Society 1998 47 1 472 ZHANG ET AL. growth rate and development in decapod Artemia nauplii, and rotifer were renewed larvae, but study on the effect of fluctuating everyday. The experiment included the fol- temperature on the larval development is lowing four treatments (each with three rep- limited. In the present study, we also tested licates): newly hatched Artemia nauplii, ro- the effect of constant and fluctuating tem- tifer Brachionus plicatilis, microalgae peratures on larval development of the pep- Chaetoceros gracilis and Isochrysis gal- permint shrimp. bana. The nauplii were obtained daily by hatching (26 C for 20 h) the cysts of small Materials and Methods strain Artemia franciscana (grade 0 (plati- This study was conducted at Harbor num), Argent Chemical Laboratories). The Branch Oceanographic Institution, Inc., rotifer (fed with Chlorella) and algae Chae- Fort Pierce, Florida, USA, between Octo- toceros gracilis and Isochrysis galbana ber, 1995 and October, 1996. used in the experiment were from the cul- ture maintained by the Harbor Branch Larval Hatching Oceanographic Institution. In all the treat- Reproductive biology of L. wurdemanni ments, food was provided in excess. The is similar to that of L. ambionensis and L. density for Artemia nauplii was 5-10/mL, debelius (Fletcher et al. 1995; Simoes et al. rotifer 10-15/mL, Chaetoceros and Iso- 1998a). It is also a simultaneous hermaph- chrysis 50.000-100,000 cells/mL. All ex- rodite species. Fertilization occurs after perimental bottles were arranged randomly. molting and the eggs are retained under the Total length (TL) of 3 haphazardly selected adult’s abdomen where they hatch as zoea larvae were measured (to the nearest 0.1 larvae 10 to 12 d later. mm) using a micrometer under a dissecting The ovigerous shrimp were maintained in microscope every 2 or 3 d starting at day an indoor recirculating seawater system un- two. Number of surviving larvae were der 14 h light and 10 h dark. Temperature counted once every 3 to 5 d. fluctuated about 1-1.5 C daily (between 26 and 29.5 C during the study period). The Temperature Experiment shrimp were fed in excess with frozen Ar- temia or squid once a day. Any shrimp that The temperature study was carried out in was going to hatch was moved to a 270-L 200-mL beakers each containing 150 mL conical fiberglass tank equipped with an in- sterilized seawater of 30 ppt salinity and ternal standpipe with 53-pm mesh. After one larva. The larvae were fed with newly the shrimp had hatched and molted, it was hatched Artemia nauplii. Complete water returned to the broodstock tank. The newly and food changes were conducted daily. hatched zoea I larvae were kept in the fi- The beakers were placed in a water bath. berglass tank (without feeding) for about 26 Two constant temperatures: 26 and 28.5 C h, when they molted to zoea 11, before be- (maintained by a water bath with sub- ing transferred to the experimental beakers merged heaters in an indoor laboratory), for the food or temperature experiments. and two fluctuating temperatures (between 27 and 29 C, and between 26 and 30 C day Food Experiment and night) (maintained by a large and small For the food experiment, sibling larvae water bath with submerged heaters, respec- were placed in 4-L bottles with 2.5 L of sea tively, in an outdoor laboratory) were test- water (33-35 ppt salinity and 29 C temper- ed. Seven replicate beakers were used for ature), with gentle agitation by bubbling. each temperature treatment. The TL of the Each bottle contained 15 zoea I1 larvae. The shrimps was measured to the nearest 0.1 light intensity was 5.3-6.9 pmoVs per m. mm after each molting. Development time Water exchange rate was 50% daily. Algae, to postlarvae was recorded. EFFECTS OF FOOD AND TEMPERATURE ON PEPPERMINT SHRIMP 473 0- E 0 b- 04 2 7 12 14 17 22 27 Time (d) FIGURE 1. Total length of Lysrnata wurdernanni larvae fed with different foods. Culture of Postlarvae and Juveniles Results Thirty postlarvae (mean 2 SD TL: 7 2 Food Experiment 1 mm, measured using a ruler to the nearest Survivorship of larvae fed with Artemia 1 mm), fed with newly hatched Artemia nauplii or rotifer (86.7% and 88.9%, re- nauplii since hatching, were put in a 25-L spectively) is significantly higher than that circular recirculate tank and were also fed fed with Chaetoceros (15.6%) or Zsochrysis with newly hatched Artemia nauplii (10- (13.3%) on day 15. Similar percentages 15/mL daily). The water (26.5-29 C, 30 (66.7% and 68.9%, respectively) of the lar- ppt) was changed (25%) every other day. vae fed with Artemia nauplii or rotifer The shrimp were observed daily until they reached the postlarval stage (t-test, P > reached sexual maturity (indicated by the 0.05). One way ANOVA results show that greenish developed gonad). Fifteen ran- significant (P C 0.001) difference in sur- domly selected shrimp were measured us- vivorship occurred after day 10 among the ing a ruler (TL to the nearest 1 mm) at day treatments.
Load more

Recommended publications
  • Lysmata Amboinensis (De Man, 1888)
    Lysmata amboinensis (de Man, 1888) B. Santhosh, M. K. Anil and Biji Xavier IDENTIFICATION Order : Decapoda Family : Lysmatidae Common/FAO : Pacific cleaner Name (English) shrimp Local names:names Not available MORPHOLOGICAL DESCRIPTION The Pacific cleaner shrimp is easily identified by its colour patterns. The body is light brown with one white band dorsally and two red bands laterally running longitudinally. The tail has two white spots on either side. The antennae are white in colour and the first pair has red coloured base. It grows up to a maximum of 6 cm. Source of image : RC CMFRI, Vizhinjam 363 PROFILE GEOGRAPHICAL DISTRIBUTION Scarlet cleaner shrimp or Pacific cleaner shrimp is one of the most popular species of ornamental crustaceans distributed in the waters of the Indo-Pacific region in Indonesia and Sri Lanka. HABITAT AND BIOLOGY It is one of the popular marine shrimp, associated with coral reefs and compatible with smaller sized marine ornamental fishes. It hides in the near shore, shallow and protected areas within a temperature range of 25-30 °C. In the Indo-Pacific areas and the Red Sea, it is mostly found in caves and crevices of coral reefs. It especially needs shelter from predators when it is moulting. It is an omnivore and a scavenger and often feeds on the external parasites of fishes. As its name indicates, this species cleans fishes including moray eels and groupers feeding on their external parasites as well as on mucous and dead or injured tissue. The shrimp moults once every 3-8 weeks and spawns regularly every 2-3 weeks.
    [Show full text]
  • Understanding Transformative Forces of Aquaculture in the Marine Aquarium Trade
    The University of Maine DigitalCommons@UMaine Electronic Theses and Dissertations Fogler Library Summer 8-22-2020 Senders, Receivers, and Spillover Dynamics: Understanding Transformative Forces of Aquaculture in the Marine Aquarium Trade Bryce Risley University of Maine, [email protected] Follow this and additional works at: https://digitalcommons.library.umaine.edu/etd Part of the Marine Biology Commons Recommended Citation Risley, Bryce, "Senders, Receivers, and Spillover Dynamics: Understanding Transformative Forces of Aquaculture in the Marine Aquarium Trade" (2020). Electronic Theses and Dissertations. 3314. https://digitalcommons.library.umaine.edu/etd/3314 This Open-Access Thesis is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of DigitalCommons@UMaine. For more information, please contact [email protected]. SENDERS, RECEIVERS, AND SPILLOVER DYNAMICS: UNDERSTANDING TRANSFORMATIVE FORCES OF AQUACULTURE IN THE MARINE AQUARIUM TRADE By Bryce Risley B.S. University of New Mexico, 2014 A THESIS Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science (in Marine Policy and Marine Biology) The Graduate School The University of Maine May 2020 Advisory Committee: Joshua Stoll, Assistant Professor of Marine Policy, Co-advisor Nishad Jayasundara, Assistant Professor of Marine Biology, Co-advisor Aaron Strong, Assistant Professor of Environmental Studies (Hamilton College) Christine Beitl, Associate Professor of Anthropology Douglas Rasher, Senior Research Scientist of Marine Ecology (Bigelow Laboratory) Heather Hamlin, Associate Professor of Marine Biology No photograph in this thesis may be used in another work without written permission from the photographer.
    [Show full text]
  • Lysmata Jundalini, a New Peppermint Shrimp (Decapoda, Caridea, Hippolytidae) from the Western Atlantic
    Zootaxa 3579: 71–79 (2012) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (online edition) urn:lsid:zoobank.org:pub:C736A8DE-9BD7-4AE2-BC42-425C8F0D3F3B Lysmata jundalini, a new peppermint shrimp (Decapoda, Caridea, Hippolytidae) from the Western Atlantic ANDREW L. RHYNE1,2,5, RICARDO CALADO3 & ANTONINA DOS SANTOS4 1Department of Biology and Marine Biology, Roger Williams University, One Old Ferry Road, Bristol, RI 02809, USA 2New England Aquarium, Research Department, New England Aquarium, One Central Wharf Boston, MA 02110 3Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal 4Instituto Nacional de Recursos Biológicos - IPIMAR, Avenida de Brasilia s/n, 1449-006 Lisbon, Portugal 5Corresponding author. E-mail: [email protected] Abstract A new peppermint shrimp species, Lysmata jundalini sp. nov., is described based on five specimens collected in shallow subtidal waters on Enrique Reef at the University of Puerto Rico, Mayagüez Isla, Magueyes Laboratories. Lysmata jund- alini sp. nov. was identified from fresh material collected at the reef crest and back reef among coral rubble in June 2005 and April 2009. The new species is most closely related to the Atlantic Lysmata intermedia and eastern Pacific L. holthu- isi. It can be readily distinguished from all those in the genus Lysmata by its color pattern, the presence of a well developed accessory branch, the number of free vs. fused segments of the accessory branch, the number of carpal segments of the second pereiopod and well developed pterygostomian tooth. Key words: Hermaphrodite, Lysmata intermedia complex, cryptic taxa Introduction The caridean shrimp genus Lysmata Risso, 1816 is commonly placed within the family Hippolytidae Bate, 1888.
    [Show full text]
  • Broodstock Conditioning and Larval Rearing of the Marine Ornamental White-Striped Cleaner Shrimp, Lysmata Amboinensis (De Man, 1888)
    ResearchOnline@JCU This file is part of the following reference: Tziouveli, Vasiliki (2011) Broodstock conditioning and larval rearing of the marine ornamental white-striped cleaner shrimp, Lysmata amboinensis (de Man, 1888). PhD thesis, James Cook University. Access to this file is available from: http://researchonline.jcu.edu.au/40038/ The author has certified to JCU that they have made a reasonable effort to gain permission and acknowledge the owner of any third party copyright material included in this document. If you believe that this is not the case, please contact [email protected] and quote http://researchonline.jcu.edu.au/40038/ Broodstock Conditioning and Larval Rearing of the Marine Ornamental White-striped Cleaner Shrimp, Lysmata amboinensis (de Man, 1888) Thesis submitted by Vasiliki Tziouveli For the degree of Doctor of Philosophy In the Discipline of Aquaculture Within the School of Marine and Tropical Biology James Cook University, QLD, Australia Statement of Access I, the undersigned, the author of this work, understand that James Cook University will make the thesis available for use within the University Library and allow access to users in other approved libraries. I understand that, as an unpublished work, a thesis has significant protection under the Copyright Act and I do not wish to place any further restriction on access to this work. ________________ ______________ Signature Date Vasiliki Tziouveli____________________________ Name ii Statement on sources Declaration I declare that this thesis is my own work and has not been submitted in any form for another degree or diploma at any university or other institution of tertiary education.
    [Show full text]
  • New Records of Marine Ornamental Shrimps (Decapoda: Stenopodidea and Caridea) from the Gulf of Mannar, Tamil Nadu, India
    12 6 2010 the journal of biodiversity data 7 December 2016 Check List NOTES ON GEOGRAPHIC DISTRIBUTION Check List 12(6): 2010, 7 December 2016 doi: http://dx.doi.org/10.15560/12.6.2010 ISSN 1809-127X © 2016 Check List and Authors New records of marine ornamental shrimps (Decapoda: Stenopodidea and Caridea) from the Gulf of Mannar, Tamil Nadu, India Sanjeevi Prakash1, 3, Thipramalai Thangappan Ajith Kumar2* and Thanumalaya Subramoniam1 1 Centre for Climate Change Studies, Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai - 600119, Tamil Nadu, India 2 ICAR - National Bureau of Fish Genetic Resources, Canal Ring Road, Dilkusha Post, Lucknow - 226002, Uttar Pradesh, India 3 Current address: Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA * Corresponding author. E-mail: [email protected] Abstract: Marine ornamental shrimps found in from coral reefs have greatly affected their diversity and tropical coral reef waters are widely recognized for the distribution (Wabnitz et al. 2003). aquarium trade. Our survey of ornamental shrimps in Among all the ornamental shrimps, Stenopus the Gulf of Mannar, Tamil Nadu (India) has found three spp. and Lysmata spp. are the most attractive and species, which we identify as Stenopus hispidus Olivier, extensively traded organisms in the marine aquarium 1811, Lysmata debelius Bruce, 1983, and L. amboinensis industry (Calado 2008). Interestingly, these shrimps are De Man, 1888, based on morphology and color pattern. associates of fishes, in particular, the groupers and giant These shrimps are recorded for the first time in Gulf of moray eels (Gymnothorax spp.). These shrimps display a Mannar, Tamil Nadu.
    [Show full text]
  • (Decapoda, Hippolytidae) from Warm Temperate and Subtropical Waters of Japan
    LYSMATA LIPKEI, A NEW SPECIES OF PEPPERMINT SHRIMP (DECAPODA, HIPPOLYTIDAE) FROM WARM TEMPERATE AND SUBTROPICAL WATERS OF JAPAN BY JUNJI OKUNO1,3) and G. CURT FIEDLER2) 1) Coastal Branch of Natural History Museum and Institute, Chiba 123 Yoshio, Katsuura, Chiba 299-5242, Japan 2) University of Maryland University College, Asia Division, USAG-J, Unit 45013, Box 2786, Zama, Kanagawa 228-0027, Japan ABSTRACT A new hippolytid shrimp species of the genus Lysmata Risso, 1816, L. lipkei sp. nov., is described and illustrated on the basis of 13 specimens from intertidal and sublittoral zones of the Boso Peninsula, Honshu and the Ryukyu Islands, Japan. Morphologically, L. lipkei is closely related to the eastern Indian Ocean species, L. dispar Hayashi, 2007, but differs from the latter by the structure of the rostrum, the armature of the antennular peduncle, and the number of articulations of the second pereiopods. RÉSUMÉ Une nouvelle crevette Hippolytidae du genre Lysmata Risso, 1816, L. lipkei sp. nov., est décrite et illustrée en se fondant sur l’examen de 13 specimens intertidaux et subtidaux de la péninsule de Boso, Honshu et des îles Ryukyu, Japon. D’un point de vue morphologique, L. lipkei est étroitement apparentée à l’espèce de l’Océan Indien oriental, L. dispar Hayashi, 2007, mais en diffère par la structure du rostre, l’armature du pédoncule antennulaire, et le nombre d’articulations des seconds péreiopodes. INTRODUCTION The hippolytid genus Lysmata Risso, 1816 can be distinguished from other genera of the Hippolytidae by their moderately slender body, the long and 3) Corresponding author; e-mail: [email protected] © Koninklijke Brill NV, Leiden, 2010 Studies on Malacostraca: 597-610 598 CRM 014 – Fransen et al.
    [Show full text]
  • Phylogeny and Taxonomy of the Genera Lysmata and Exhippolysmata (Crustacea: Caridea: Hippolytidae)
    Zoological Journal of the Linnean Society, 2010, 160, 254–265. With 3 figures Molecular systematics of peppermint and cleaner shrimps: phylogeny and taxonomy of the genera Lysmata and Exhippolysmata (Crustacea: Caridea: Hippolytidae) J. ANTONIO BAEZA1,2,3* 1Smithsonian Tropical Research Institute, Apartado Postal 0843-03092, Balboa, Ancón, Republic of Panama 2Smithsonian Marine Station at Fort Pierce, 701 Seaway Drive, Fort Pierce, Florida 34949, USA 3Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile Received 31 December 2008; accepted for publication 22 May 2009 Shrimps from the ecologically diverse genera Lysmata and Exhippolysmata are rare among marine invertebrates because they are protandric simultaneous hermaphrodites: shrimps initially mature and reproduce solely as males, and later in life become functional simultaneous hermaphrodites. Considerable progress on the reproductive ecology of members from these two genera has been achieved during the last decade. However, several outstanding issues of systematic nature remain to be addressed. Here, a molecular phylogeny of these two genera was used to examine the overall evolutionary relationship within and between species and genera, and to answer various questions related to the systematic status of several species. The present phylogenetic analysis, including 53 sequences and 26 species of Lysmata and Exhippolysmata, indicates that semiterrestrial shrimps from the genus Merguia represent the sister group to a second natural clade composed by shrimps from the genera Lysmata and Exhippolysmata. Also, the phylogenetic analysis confirmed that the genus Lysmata is paraphyletic, and includes the genus Exhippolysmata, as noted in a preliminary study. The tree partially supports the separation of species with or without a developed accessory branch into two different genera or subgenera (i.e.
    [Show full text]
  • A Morphological and Molecular Study of Diversity and Connectivity Among Anchialine Shrimp
    Florida International University FIU Digital Commons FIU Electronic Theses and Dissertations University Graduate School 11-10-2020 Connections in the Underworld: A Morphological and Molecular Study of Diversity and Connectivity among Anchialine Shrimp. Robert Eugene Ditter Florida International University, [email protected] Follow this and additional works at: https://digitalcommons.fiu.edu/etd Part of the Biodiversity Commons, Bioinformatics Commons, Biology Commons, Ecology and Evolutionary Biology Commons, Genetics and Genomics Commons, Marine Biology Commons, Natural Resources and Conservation Commons, Oceanography Commons, Other Environmental Sciences Commons, Speleology Commons, and the Zoology Commons Recommended Citation Ditter, Robert Eugene, "Connections in the Underworld: A Morphological and Molecular Study of Diversity and Connectivity among Anchialine Shrimp." (2020). FIU Electronic Theses and Dissertations. 4561. https://digitalcommons.fiu.edu/etd/4561 This work is brought to you for free and open access by the University Graduate School at FIU Digital Commons. It has been accepted for inclusion in FIU Electronic Theses and Dissertations by an authorized administrator of FIU Digital Commons. For more information, please contact [email protected]. FLORIDA INTERNATIONAL UNIVERSITY Miami, Florida CONNECTIONS IN THE UNDERWORLD: A MORPHOLOGICAL AND MOLECULAR STUDY OF DIVERSITY AND CONNECTIVITY AMONG ANCHIALINE SHRIMP A dissertation submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in BIOLOGY by Robert E. Ditter 2020 To: Dean Michael R. Heithaus College of Arts, Sciences and Education This dissertation, written by Robert E. Ditter, and entitled Connections in the Underworld: A Morphological and Molecular Study of Diversity and Connectivity among Anchialine Shrimp, having been approved in respect to style and intellectual content, is referred to you for judgment.
    [Show full text]
  • Functional, Simultaneous Hermaphroditism in Female-Phase Lysmata Amboinensis (Decapoda: Caridea: Hippolytidae) 1 G
    Pacific Science (1998), vol. 52, no. 2: 161-169 0 1998 by University of Hawaii Press. All rights reserved Functional, Simultaneous Hermaphroditism in Female-Phase Lysmata amboinensis (Decapoda: Caridea: Hippolytidae) 1 G. CURT FIEDLER 2 ABSTRACT: Several species of hippolytid shrimp of the genus Lysmata are described as protandrous hermaphrodites, with speculation that some Lysmata are simultaneous hermaphrodites and/or store exogenous sperm. The objective of this study was to ascertain the presence of simultaneous hermaphroditism in L. amboinensis De Man. For this experiment, four pairs of female-phase L. amboinensis were isolated until each shrimp spawned two fertile clutches of eggs. For two of the four pairs, pair-mates were then separated and isolated in an identical fashion. Paired individuals continued to spawn and hatch fertile eggs. Isolated individuals spawned only infertile eggs. Paired shrimp also synchronized their molt cycles in a staggered fashion, such that individuals al- ternated sexual roles. Histological and morphological examination shows that each female-phase individual possessed an active male and female portion of the gonad with corresponding gonoducts. The results indicate that this species is a functional, simultaneous hermaphrodite. Previously, this pattern has not been adequately described in any decapod crustacean. HERMAPHRODMSM IS KNOWN from relatively wurdemanni, L ensirostris, L. grabhami, L. few (-40) species of decapod crustaceans in nilita, and L amboinensis De Man (Suku- 10 families (for reviews, see Carpenter 1978, maran 1981, Policansky 1982, Bundy 1983, Policansky 1982, Bauer 1986) (for recent Debelius 1984). Each individual matures as examples, see Sukumaran 1981, Bundy 1983, a male and then upon reaching a certain Nakashima 1987, Gherardi and Calloni 1993).
    [Show full text]
  • Rare Animals Tracking List
    Louisiana's Animal Species of Greatest Conservation Need (SGCN) ‐ Rare, Threatened, and Endangered Animals ‐ 2020 MOLLUSKS Common Name Scientific Name G‐Rank S‐Rank Federal Status State Status Mucket Actinonaias ligamentina G5 S1 Rayed Creekshell Anodontoides radiatus G3 S2 Western Fanshell Cyprogenia aberti G2G3Q SH Butterfly Ellipsaria lineolata G4G5 S1 Elephant‐ear Elliptio crassidens G5 S3 Spike Elliptio dilatata G5 S2S3 Texas Pigtoe Fusconaia askewi G2G3 S3 Ebonyshell Fusconaia ebena G4G5 S3 Round Pearlshell Glebula rotundata G4G5 S4 Pink Mucket Lampsilis abrupta G2 S1 Endangered Endangered Plain Pocketbook Lampsilis cardium G5 S1 Southern Pocketbook Lampsilis ornata G5 S3 Sandbank Pocketbook Lampsilis satura G2 S2 Fatmucket Lampsilis siliquoidea G5 S2 White Heelsplitter Lasmigona complanata G5 S1 Black Sandshell Ligumia recta G4G5 S1 Louisiana Pearlshell Margaritifera hembeli G1 S1 Threatened Threatened Southern Hickorynut Obovaria jacksoniana G2 S1S2 Hickorynut Obovaria olivaria G4 S1 Alabama Hickorynut Obovaria unicolor G3 S1 Mississippi Pigtoe Pleurobema beadleianum G3 S2 Louisiana Pigtoe Pleurobema riddellii G1G2 S1S2 Pyramid Pigtoe Pleurobema rubrum G2G3 S2 Texas Heelsplitter Potamilus amphichaenus G1G2 SH Fat Pocketbook Potamilus capax G2 S1 Endangered Endangered Inflated Heelsplitter Potamilus inflatus G1G2Q S1 Threatened Threatened Ouachita Kidneyshell Ptychobranchus occidentalis G3G4 S1 Rabbitsfoot Quadrula cylindrica G3G4 S1 Threatened Threatened Monkeyface Quadrula metanevra G4 S1 Southern Creekmussel Strophitus subvexus
    [Show full text]
  • A New Species of the Shrimp Genus Lysmata Risso, 1816 (Crustacea, Decapoda) from Guam
    Micronesica 41(2):197–214, 2011 A new species of the shrimp genus Lysmata Risso, 1816 (Crustacea, Decapoda) from Guam Arthur Anker1, Derek Cox Dickinson Hall, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA Abstract—A new species of hippolytid shrimp, Lysmata guamensis n. sp., is described based on a single specimen collected in the shallow waters of Guam, the largest island of the Mariana Archipelago in the tropical western Pacific Ocean. The new species differs from all the other species of Lysmata by the presence of only two teeth on the mid-dorsal line of the carapace, one of which is posterior to the orbital margin. It also has unusually slender, elongate walking legs. An annotated table of all presently known species of Lysmata is provided. Introduction The shrimp genus Lysmata Risso, 1816 is traditionally placed in the family Hippolytidae Bate, 1888, which, however, is polyphyletic and needs a complete revision (see Bracken et al. 2009). Lysmata, which includes familiar peppermint and cleaner shrimps, is represented in the Indo-West Pacific region by 15 spe- cies, reaching from the Red Sea to South Africa and across the Indian and Pacific 2FHDQV WR -DSDQ +DZDLL DQG 1HZ =HDODQG &KDFH %XUXNRYVN\ Hayashi 2007). However, this is less than 40% of the total number of species cur- rently known in the genus (36, De Grave et al. 2009; 5 additional taxa described in Hayashi 2007, Anker et al. 2009, Baeza et al. 2009a, Laubenheimer & Rhyne 2010, Okuno & Fiedler 2010) and possibly quite far from the actual diversity in this vast oceanic province, as suggested by the rather confusing synonomy of several taxa (see Chace 1997, Wicksten 2000a) and photographs of unidentified species in popular underwater field guides (e.g., Debelius 2001, Kuiter & Debelius 2009).
    [Show full text]
  • Scientific Note Brief Description of Prey Selectivity and Ontogenetic
    Scientific Note Brief description of prey selectivity and ontogenetic changes in the diet of the invasive lionfish Pterois volitans (Actinopterygii, Scorpaenidae) in the Mexican Caribbean 1, 2 JUAN CARLOS VILLASEÑOR-DERBEZ *, ROGELIO HERRERA-PÉREZ 1Universidad Autónoma de Baja California, Facultad de Ciencias Marinas, Km. 103 Carretera Tijuana-Ensenada, Ensenada, Baja California, México C.P. 22860. E-mail: [email protected] 2Dirección General de Protección del Medio Natural, Viceconsejería de Medio Ambiente, Gobierno de Canarias, Edificio de Usos Múltiples II, Agustín Millares, Las Palmas de Gran Canaria, Islas Canarias, España C.P. 35017 Abstract. Stomach contents were analyzed from 109 individuals. A total of 4 Genera and 14 Species were identified. Crustaceans accounted for %N=67.39% , %IRI= 86.37% of the total identified taxa and Teleosts %N=32.61% (%IRI = 13.63%). An ontogenetic change was observed in P. volitans diet. Key words: invasive species, Mexico, Caribbean Sea, feeding ecology, Scorpaenidae Resumen. Breve descripción sobre la selectividad de presas y cambios ontogénicos en la dieta del pez león invasor Pterois volitans (Actinopterygii, Scorpaenidae) en el Caribe Mexicano. Se analizaron contenidos estomacales de 109 individuos. Se identificaron un total de 4 géneros y 14 especies. Los Crustáceos representaron un %N=67.39%, %IRI = 86.37% y los Teleosteos un %N=32.61% (%IRI = 13.63%). Se observó un cambio ontogénico en la dieta de P. volitans. Palabras clave: especies invasoras, México, Mar Caribe, ecología alimentaria, Scorpaenidae The Indo-Pacific lionfish [Pterois volitans species and has nocturnal activity; during the day it (Linnaeus 1758) and P. miles (Bennett 1828): stays inactive and hidden in reef cavities.
    [Show full text]