DOCSLIB.ORG

Invert4 2 161 172 Kutikova.PM6

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Invert4 2 161 172 Kutikova.PM6 Çîîëîãèÿ áåñïîçâîíî÷íûõ, 2007, 4(2): 161172 © ÇÎÎËÎÃÈß ÁÅÑÏÎÇÂÎÍÎ×ÍÛÕ, 2007 Ïÿòü âèäîâ êîëîâðàòîê ñåìåéñòâà Flosculariidae (Rotifera), èõ ëè÷èíêè è ìåòàìîðôîç Ë.À. Êóòèêîâà Çîîëîãè÷åñêèé èíñòèòóò ÐÀÍ, Ñàíêò-Ïåòåðáóðã, 199034, Ðîññèÿ. e-mail: [email protected] ÐÅÇÞÌÅ: Äîïîëíåíî è óòî÷íåíî îïèñàíèå ìîðôîëîãèè ïÿòè âèäîâ êîëîâðàòîê cåìåéñòâà Flosculariidae: Floscularia janus (Hudson, 1881), Ptygura pilula (Cubitt, 1872), Beuchampia crucigera (Dutrochet, 1812), Limnias melicerta Weisse, 1848, Lacinularia ismailoviensis (Pog- genpol, 1872). Ïðåäñòàâëåíû ñâåäåíèÿ î ìåòàìîðôîçå íåñêîëüêèõ âèäîâ èç ðàçëè÷íûõ ðîäîâ. ÊËÞ×ÅÂÛÅ ÑËÎÂÀ: êîëîâðàòêè, Flosculariidae, ñåññèëüíûå è êîëîíèàëüíûå êîëîâ- ðàòêè, ëè÷èíî÷íûé ìåòàìîðôîç. Five species of rotifers of the family Flosculariidae (Rotifera), their larvae and metamorphosis L.A. Kutikova Zoological Institute RAS, Saint-Petersburg, 199034, Russia. e-mail: [email protected] SUMMARY: The descriptions of morphological structures of five species of rotifers of the family Flosculariidae (Floscularia janus (Hudson, 1881), Ptygura pilula (Cubitt, 1872), Beau- champia crucigera (Dutrochet, 1812), Limnias melicerta Weisse, 1848, Lacinularia ismailovien- sis (Poggenpol, 1872) are expanded and updated. The larval metamorphosis of species from several genera is described. KEYWORDS: Rotifera, Flosculariidae, sessile and colonial rotifers, larval metamorphosis. Ââåäåíèå Ìàñòàêñ ìàëëåîðàìàòíîãî òèïà. Ïî áèîëî- ãèè, ýêîëîãèè è ñòðîåíèþ ñåññèëüíûõ êî- Ñåìåéñòâî Flosculariidae âêëþ÷àåò 7 ðî- ëîâðàòîê ñóùåñòâóåò çàìåòíîå ÷èñëî ïóáëè- äîâ è îêîëî 60 âèäîâ êîëîâðàòîê. Âçðîñëûå êàöèé (Edmondson 1940, 1944, 1945; Áîãî- ñàìêè æèâóò â ïîñòðîåííûõ èìè îáû÷íî ñëîâñêèé, 1949; Wright, 1950, 1954, 1959; òðóáêîâèäíûõ äîìèêàõ, ïðèêðåïëåííûõ ê Koste, 1969, 1970, 1972, 1987; Vasisht, Dwar, ñóáñòðàòó, ðåæå îáúåäèíÿþòñÿ â ñâîáîäíîï- 1970; Tiefenbacher, 1972; Wallace, 1975, 1980, ëàâàþùèå êîëîíèè. Äëÿ ïðåäñòàâèòåëåé ýòî- 1993; Champ, 1976; Wallace, Starkweather, ãî ñåìåéñòâà õàðàêòåðíà øèðîêàÿ, êàê ïðà- 1983; Wallace, Edmondson, 1986; Kutikova, âèëî, êîëîêîëîâèäíàÿ êîðîíà, ÷àñòî ñ ëîïà- 1995). Íåñìîòðÿ íà ýòî, ìîðôîëîãèÿ ìíîãèõ ñòÿìè, íàêëîíåííàÿ íà ñïèííóþ ñòîðîíó. âèäîâ îñòàåòñÿ íà óðîâíå ïåðâîíà÷àëüíûõ Êîðîíà èìååò äâà ðÿäà ìåðöàòåëüíûõ ðåñíè- íå ñîâñåì ïîëíûõ îïèñàíèé. Èìåííî ê òà- ÷åê, ðàçäåëåííûõ áîðîçäêîé èëè æåëîáêîì. êèì âèäàì îòíîñÿòñÿ Floscularia janus 162 Ë.À. Êóòèêîâà (Hudson, 1881), Ptygura pilula (Cubitt, 1872), êîðîíó ñ 2 áðþøíûìè è 2 íåñêîëüêî ìåíüøèìè Beauchampia crucigera (Dutrochet, 1812), ñïèííûìè ëîïàñòÿìè. Íà ëîïàñòÿõ äâà ðÿäà êî- Limnias melicerta Weisse, 1848, Lacinularia ðîòêèõ ðåñíè÷åê (ðåñíè÷êè êðàåâîãî ðÿäà íåìíî- ãî äëèííåå), êîòîðûå ïðåðûâàþòñÿ íà ñïèííîé è ismailoviensis (Poggenpol, 1872), äåòàëè ñòðî- çíà÷èòåëüíî øèðå íà áðþøíîé ñòîðîíå. Êîðîíà åíèÿ êîòîðûõ òðåáóþò óòî÷íåíèÿ. Ïîñòýìá- â ðàñïðàâëåííîì âèäå (240300 ìêì) ïî÷òè â 3 ðè-îíàëüíîå ðàçâèòèå ýòèõ âèäîâ îñëîæíå- ðàçà øèðå òóëîâèùà. Ïîä êîðîíîé íèæå ðîòîâîé íî ìåòàìîðôîçîì, è èõ ñâîáîäíîïëàâàþùèå âîðîíêè âûñòóïàåò óãëîâàòàÿ íèæíÿÿ ãóáà (äëè- ëè÷èíêè ïî ñòðîåíèþ ñëàáî íàïîìèíàþò íà 30 ìêì) ñ ÿìêîé, ãäå ñîçäàþòñÿ ôåêàëüíûå êîìêè (ðàçìåðîì 8398×4556 ìêì) äëÿ ïîñò- âçðîñëûõ îñîáåé. Ëè÷èíêè ðàçíûõ âèäîâ è ðîéêè äîìèêà. ßìêà âûñòëàíà ðåñíè÷êàìè. Òóëî- äàæå ðàçíûõ ðîäîâ ñõîäíû ìåæäó ñîáîé, âèùå óäëèíåííî-âåðåòåíîâèäíîå. Íà åãî áðþø- õîòÿ ïðîöåññû ëè÷èíî÷íîãî ìåòàìîðôîçà íîé ñòîðîíå íèæå ÿìêè íàõîäÿòñÿ íåäëèííûå ìîãóò ïðîòåêàòü ïî-ðàçíîìó. ïàðíûå áîêîâûå ÷óâñòâèòåëüíûå ùóïàëüöà. Îíè èìåþò êîíóñîâèäíîå îñíîâàíèå ñ êîðîòêîé òðóá- êîé, èç êîòîðîé âûñòóïàåò ïó÷îê ðåñíè÷åê (äëè- Ìàòåðèàë è ìåòîäû íà îñíîâàíèÿ 23, ðåñíè÷åê 30 ìêì). Òðóáêîâèä- íîå ñïèííîå ÷óâñòâèòåëüíîå ùóïàëüöå ñ ïó÷êîì Èññëåäîâàíèÿ ïðîâîäèëè â ëàáîðàòîðèè ðåñíè÷åê, êîðîòêîå, çàìåòíî ëèøü ïðè âòÿíóòîé êîðîíå. Ãàíãëèé áîëüøîé ïðÿìîóãîëüíûé íà Èíñòèòóòà áèîëîãèè âíóòðåííèõ âîä ÐÀÍ â ñïèííîé ñòîðîíå. Ïèùåâàðèòåëüíàÿ ñèñòåìà îò- èþíåàâãóñòå 1987 ã. â ïîñ. Áîðîê ßðîñëàâ- êðûâàåòñÿ ðòîì, ñ áîêîâ îáðàìëåííûì âûñòóïà- ñêîé îáëàñòè, â îêðåñòíîñòÿõ êîòîðîãî èìå- ìè ñ ðåñíè÷êàìè, è äëèííîé áóêêàëüíîé òðóáêîé åòñÿ ìíîãî âîäîåìîâ ðàçíûõ òèïîâ. Ïðîáû ñ ðåñíè÷êàìè. Ê íèì ïðèìûêàþò áîëüøèå ñëþí- ñîáèðàëè ïëàíêòîííîé ñåòüþ ñ ìåëêîÿ÷åèñ- íûå æåëåçû. Ìàñòàêñ ëèøü íåìíîãî áîëüøå êàê ñëþííûõ, òàê è æåëóäî÷íûõ æåëåç. ×åëþñòè ìà- òûì ãàçîì ñðåäè ïðèáðåæíîé ðàñòèòåëüíîñ- ñòàêñà íåìíîãî àñèììåòðè÷íûå: â ëåâîì óíêóñå 5 òè è ïðîñìàòðèâàëè â ÷àøêå Ïåòðè ïîä áè- êðóïíûõ çóáîâ, îòõîäÿùèõ îò ìåäèàëüíîé êàìå- íîêóëÿðîì. Íàéäåííûõ êîëîâðàòîê ïîìåùà- ðû è 8 ïëàíî÷íûõ; â ïðàâîì 3 êðóïíûõ, 4 áîëåå ëè èíäèâèäóàëüíî íà ïðåäìåòíîå ñòåêëî â òîíêèõ è íåñêîëüêî ìåëêèõ ïëàíî÷íûõ. Äëèíà êàïëå âîäû, êîòîðóþ ïðèêðûâàëè ïîêðîâ- ðàìóñîâ 30, ôóëüêðóìà 11, óíêóñíûõ çóáîâ 15 18,5 ìêì. Óäëèíåííûé æåëóäîê è ïî÷òè îêðóã- íûì ñòåêëîì íà «íîæêàõ» èç ïëàñòèëèíà èëè ëûé èëè îâàëüíûé êèøå÷íèê èìåþò òîëñòûå ñòåí- âîñêà. Âñå íàáëþäåíèÿ è çàðèñîâêè ïðîâî- êè. Æåëòî÷íèê ñîäåðæèò 57 ÿäåð. Íîãà êîëü÷à- äèëè in vivo ïîä îïòè÷åñêèì ìèêðîñêîïîì. òàÿ, ÷åðâåîáðàçíàÿ, â 1,52 ðàçà äëèííåå òóëîâè- Ìåòàìîðôîç ñåññèëüíûõ êîëîâðàòîê èçó÷à- ùà, îêàí÷èâàåòñÿ ïðèêðåïèòåëüíîé ïëàñòèíêîé ëè â ëàáîðàòîðèè Áèîëîãè÷åñêîé ñòàíöèè íà òîíêîì ñòåáåëüêå. Íîæíûå æåëåçû, â íà÷àëå êîëáîâèäíûå, ïðîòÿãèâàþòñÿ ïî âñåé äëèíå íîãè. Çîîëîãè÷åñêîãî èíñòèòóòà ÐÀÍ íà Êóðøñ- Àìèêòè÷åñêèå ÿéöà óäëèíåííî-îâàëüíûå êîé êîñå â Êàëèíèíãðàäñêîé îáëàñòè ëåòîì (105157×4765 ìêì). 1992 ã. (Kutikova, 1995).  Áîðêå F. janus íàéäåí â ñåðåäèíå èþëÿ â Áàðñêîì ïðóäó íà ëèñòüÿõ ðÿñêè, òàêæå âñòðå÷àë- Îïèñàíèå ñÿ ó åå êîðíåé.  Ðîññèè âñòðå÷åí â Íîâãîðîäñ- êîé, Òâåðñêîé, Ïåðìñêîé, Ìîñêîâñêîé îáëàñòÿõ. Floscularia janus (Hudson, 1881) Èçâåñòåí èç Íîðâåãèè, Øâåöèè, Ôèíëÿíäèè, Èðëàíäèè, Àíãëèè, Ãåðìàíèè, Ïîëüøè, Àâñò- Ðèñ. 1AG. ðèè, Øâåéöàðèè, áûâ. ×åõîñëîâàêèè, Ðóìûíèè, ßïîíèè, ÑØÀ. Îäèíî÷íûå, ñèäÿùèå â äîìèêàõ, ïðèêðåï- ëåííûõ ê ñóáñòðàòó. Äîìèê êîðè÷íåâàòûé óäëè- íåííî-êîíè÷åñêèé, ñëàáî ñóæåííûé ó îñíîâà- Ptygura pilula (Cubitt, 1872) íèÿ, ñîñòàâëåí èç ôåêàëüíûõ êîìêîâ, ñëîæåííûõ Ðèñ. 2AD. ðûõëî ïî÷òè ïîïåðåê äëèíû äîìèêà. Âûñîòà äî- ìèêà 780900, òîëùèíà ó îñíîâàíèÿ 90150, íà Îäèíî÷íûå, ñèäÿ÷èå, â íåïðàâèëüíî-êîíè- âåðõíåì êðàå 195255 ìêì. Îáùàÿ äëèíà òåëà ÷åñêîì êðàñíîâàòî-êîðè÷íåâîì äîìèêå (âûñîòà 7801200 ìêì, ïðè äëèíå 780: äëèíà òóëîâèùà 825, øèðèíà 435 ìêì), ñëîæåííîì äîâîëüíî ðûõ- 225, íîãè 420, øèðèíà òóëîâèùà 90 ìêì. Êîðîò- ëî èç ÿéöåâèäíûõ ôåêàëüíûõ êîìêîâ âåëè÷èíîé êàÿ ãîëîâà èìååò øèðîêóþ ÷åòûðåõëîïàñòíóþ 4860×5664 ìêì è íèòåé âîäîðîñëåé. Îáùàÿ Êîëîâðàòêè ñåìåéñòâà Flosculariidae 163 Ðèñ. 1. Floscularia janus (Hudson, 1881). A êîëîâðàòêà â äîìèêå, ñ áðþøíîé ñòîðîíû; B êîëîâðàòêà áåç äîìèêà, ñ áðþøíîé ñòîðîíû; C ãîëîâà è òóëîâèùå, ñáîêó; D ðàìóñû è ôóëüêðóì; E ìàíóáðèè è óíêóñû; F âòÿíóòàÿ êîðîíà è ñïèííîå ùóïàëüöå; G àìèêòè÷åñêîå ÿéöî. Ìàñøòàá (ìêì): 300 (AC); 100 (G); 10 (D, E). Fig. 1. Floscularia janus (Hudson, 1881). A in tube, ventral view; B without tube, ventral view; C head and trunk, lateral view; D rami and fulcrum; E manubrium and uncus; F dorsal tentacle; G amictic egg. Scale bar (ìm ): 300 (A C), 100 (G); 10(D, E). äëèíà 1100 ìêì. Íà ãîëîâå øèðîêîîâàëüíàÿ êî- ãóëóìà. Ïîä êîðîíîé ïî áîêàì âûåìêè õîðîøî ðîíà (øèðèíà 150 ìêì) ñ äâóìÿ ðÿäàìè ðåñíè÷åê, âèäèìû êîíóñîâèäíûå âûñòóïû ñ ïó÷êàìè ðåñ- ïðåðûâàþùèõñÿ âûåìêîé íà áðþøíîé ñòîðîíå. íè÷åê. Çà øèðîêîé ðîòîâîé âîðîíêîé ñ ãóñòûì Ðåñíè÷êè òðîõóñà çàìåòíî äëèííåå ðåñíè÷åê öèí- ïîêðîâîì ðåñíè÷åê ñëåäóåò ìàñòàêñ, íàä êîòî- 164 Ë.À. Êóòèêîâà Ðèñ. 2. Ptygura pilula (Cubitt, 1872). A êîëîâðàòêà â äîìèêå, ñáîêó; B ãîëîâà, ñáîêó; C êîðîíà, ñâåðõó; D áîêîâîå ùóïàëüöå. Ìàñøòàá (ìêì): 300 (A); 75 (BD). Fig. 2. Ptygura pilula (Cubitt, 1872). A in tube, lateral view; B head, lateral view; C corona, frontal view; D lateral tentacle. Scale bar (ìm ): 300 (A); 75 (BD). ðûì ëåæàò áîëüøèå ñëþííûå æåëåçû. Êîðîòêèé Áîêîâûå ïàðíûå ùóïàëüöà äëèííûå (45 ìêì), ïèùåâîä ïåðåõîäèò â äëèííûé îáúåìèñòûé æå- ïî÷òè ðàâíû ïîëîâèíå øèðèíû òóëîâèùà (97 ëóäîê ñ ãîìîãåííûì òåìíîâàòûì ñîäåðæèìûì, â 112 ìêì), îòõîäÿò ó ãðàíèöû øåéíîãî è òóëî- åãî âåðõíåé ÷àñòè íàõîäÿòñÿ íåáîëüøèå æåëó- âèùíîãî îòäåëîâ. Òóëîâèùå óäëèíåííî-âåðåòå- äî÷íûå æåëåçû. Êèøå÷íèê íåáîëüøîé, îâàëü- íîâèäíîå, ñóæàÿñü, ïåðåõîäèò â î÷åíü äëèííóþ íûé. Ãàíãëèé áîëüøîé ïîä êîðîíîé íà ñïèííîé êîëü÷àòî-ìîðùèíèñòóþ íîãó ñ äëèííûìè íîæ- ñòîðîíå. Ãëàçíûõ ïÿòåí ó âçðîñëûõ îñîáåé íåò. íûìè æåëåçàìè. Êîëîâðàòêè ñåìåéñòâà Flosculariidae 165 ßéöà óäëèíåííî-îâàëüíûå, èõ ðàçìåðû 120´ êîé, Ìîñêîâñêîé è Àñòðàõàíñêîé îáëàñòÿõ. Îò- 60 ìêì. ìå÷åí â âîäîåìàõ Ôèíëÿíäèè, Àíãëèè, Ãåðìà-  Áîðêå ýòîò âèä íàéäåí â íåáîëüøîì ïðóäó íèè, Ïîëüøè, Ôðàíöèè, áûâ. ×åõîñëîâàêèè, Ðó- ñðåäè ñôàãíóìà â íà÷àëå èþíÿ 1987 ã.  Ðîññèè ìûíèè, Àâñòðèè, Øâåéöàðèè, Êèòàÿ, Èíäèè, îòìå÷åí â âîäîåìàõ Êîëüñêîãî ïîëóîñòðîâà, Àôðèêè, Àâñòðàëèè, ÑØÀ. Íîâãîðîäñêîé, Ìîñêîâñêîé, Ñìîëåíñêîé îáëàñ- òåé. Èçâåñòåí èç Íîðâåãèè, Øâåöèè, Ôèíëÿí- Limnias melicerta Weisse, 1848 äèè, Èðëàíäèè, Àíãëèè, Ãåðìàíèè, Ïîëüøè, áûâ. Ðèñ. 4AE. ×åõîñëîâàêèè, Ðóìûíèè, Àâñòðèè, ÑØÀ. Beauchampia crucigera (Dutrochet, 1812) Îäèíî÷íûå, ñèäÿ÷èå, â ñòåêëîâèäíî-ïðîçðà÷- íîì êîðè÷íåâàòîì äîìèêå. Äîìèê òðóá÷àòûé (âû- Ðèñ. 3AE. ñîòà 638, øèðèíà ó îñíîâàíèÿ 75, ó âåðõíåãî êðàÿ 98 ìêì) ñ ÿñíîé êîëüöåâîé èñ÷åð÷åííîñòüþ. Îíà Îäèíî÷íûå, ñèäÿ÷èå, â äîìèêàõ. Äîìèê ïëîò- îò÷åòëèâî âèäíà íà 3/4 âûñîòû äîìèêà, íèæå íûé êîðè÷íåâûé êîíóñîâèäíî-òðóá÷àòûé (âûñî- ñòàíîâèòñÿ áîëåå ÷àñòîé, à ê êîíöó ïî÷òè ñîâñåì òà 495, òîëùèíà ó îñíîâàíèÿ 45, ó âåðõíåãî êðàÿ èñ÷åçàåò. Ïîñòðîéêà êîëü÷àòîé òðóáêè äîìèêà 75 ìêì), èíîãäà íåìíîãî èçîãíóòûé, ñ ìåëêèìè ýòîãî âèäà ïîäðîáíî îïèñàíà (Wright, 1954).
Load more

Recommended publications
  • Paper Received: 28.11.2019 Revised Received: 11.12.2019 Accepted: 12.12.2019
    Journal Home page : www.jeb.co.in « E-mail : [email protected] Review Article Journal of Environmental Biology TM p-ISSN: 0254-8704 e-ISSN: 2394-0379 JEB CODEN: JEBIDP DOI : http://doi.org/10.22438/jeb/41/1/MRN-1344 White Smoke Plagiarism Detector Just write. Review on the ecology and taxonomy of sessile rotifers (Rotifera) with special reference to Mexico S.S.S. Sarma1*, M.A. Jiménez-Santos2, S. Nandini1 and R.L. Wallace3 1Laboratory of Aquatic Zoology, National Autonomous University of Mexico, CP-54090 Tlalnepantla, México 2Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, CP-04510, Mexico 3Department of Biology, Ripon College, Ripon, WI 54971-0248, USA *Corresponding Author Email : [email protected] Paper received: 28.11.2019 Revised received: 11.12.2019 Accepted: 12.12.2019 Abstract Although comprising <0.5% of all the known species of Rotifera, sessile rotifers are an important component in freshwater ecosystems, especially shallow waterbodies. During the last eight decades, fewer than 80 publications have dealt specifically with sessile rotifers, while more than 7600 articles have focused on rotifers in general. In this work research on the sessile rotifers with emphasis on the Mexican fauna has been reviewed and some additional information on the new records has been included. Difficulties involved in collection and maintenance of sessile rotifers, as well as problems of identification and quantification have been considered. Published data on the ecology and taxonomy of this group has also been reviewed. There are 35 species of sessile rotifers from three families Atrochidae, Collothecidae, and Flosculariidae, but to that four more species in the planktonic family Conochilidae may be added, as recent molecular research indicates that this family lies within Flosculariidae.
    [Show full text]
  • Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016
    Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016 April 1981 Revised, May 1982 2nd revision, April 1983 3rd revision, December 1999 4th revision, May 2011 Prepared for U.S. Department of Commerce Ohio Department of Natural Resources National Oceanic and Atmospheric Administration Division of Wildlife Office of Ocean and Coastal Resource Management 2045 Morse Road, Bldg. G Estuarine Reserves Division Columbus, Ohio 1305 East West Highway 43229-6693 Silver Spring, MD 20910 This management plan has been developed in accordance with NOAA regulations, including all provisions for public involvement. It is consistent with the congressional intent of Section 315 of the Coastal Zone Management Act of 1972, as amended, and the provisions of the Ohio Coastal Management Program. OWC NERR Management Plan, 2011 - 2016 Acknowledgements This management plan was prepared by the staff and Advisory Council of the Old Woman Creek National Estuarine Research Reserve (OWC NERR), in collaboration with the Ohio Department of Natural Resources-Division of Wildlife. Participants in the planning process included: Manager, Frank Lopez; Research Coordinator, Dr. David Klarer; Coastal Training Program Coordinator, Heather Elmer; Education Coordinator, Ann Keefe; Education Specialist Phoebe Van Zoest; and Office Assistant, Gloria Pasterak. Other Reserve staff including Dick Boyer and Marje Bernhardt contributed their expertise to numerous planning meetings. The Reserve is grateful for the input and recommendations provided by members of the Old Woman Creek NERR Advisory Council. The Reserve is appreciative of the review, guidance, and council of Division of Wildlife Executive Administrator Dave Scott and the mapping expertise of Keith Lott and the late Steve Barry.
    [Show full text]
  • Gnesiotrocha, Monogononta, Rotifera) in Thale Noi Lake, Thailand
    Zootaxa 2997: 1–18 (2011) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2011 · Magnolia Press ISSN 1175-5334 (online edition) Diversity of sessile rotifers (Gnesiotrocha, Monogononta, Rotifera) in Thale Noi Lake, Thailand PHURIPONG MEKSUWAN1, PORNSILP PHOLPUNTHIN1 & HENDRIK SEGERS2,3 1Plankton Research Unit, Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Songkhla, Thai- land. E-mail: [email protected], [email protected] 2Freshwater Laboratory, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels, Belgium. E-mail: [email protected] 3Corresponding author Abstract In response to a clear gap in knowledge on the biodiversity of sessile Gnesiotrocha rotifers at both global as well as re- gional Southeast Asian scales, we performed a study of free-living colonial and epiphytic rotifers attached to fifteen aquat- ic plant species in Thale Noi Lake, the first Ramsar site in Thailand. We identified 44 different taxa of sessile rotifers, including thirty-nine fixosessile species and three planktonic colonial species. This corresponds with about 40 % of the global sessile rotifer diversity, and is the highest alpha-diversity of the group ever recorded from a single lake. The record further includes a new genus, Lacinularoides n. gen., containing a single species L. coloniensis (Colledge, 1918) n. comb., which is redescribed, and several possibly new species, one of which, Ptygura thalenoiensis n. spec. is formally described here. Ptygura noodti (Koste, 1972) n. comb. is relocated from Floscularia, based on observations of living specimens of this species, formerly known only from preserved, contracted specimens from the Amazon region.
    [Show full text]
  • Redalyc.Rotifera from Southeastern Mexico, New Records and Comments on Zoogeography
    Anales del Instituto de Biología. Serie Zoología ISSN: 0368-8720 [email protected] Universidad Nacional Autónoma de México México García-Morales, Alma Estrella; Elías GUTIÉRREZ, Manuel Rotifera from southeastern Mexico, new records and comments on zoogeography Anales del Instituto de Biología. Serie Zoología, vol. 75, núm. 1, julio-diciembre, 2004, pp. 99-120 Universidad Nacional Autónoma de México Distrito Federal, México Disponible en: http://www.redalyc.org/articulo.oa?id=45875103 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología 75(1): 99-120. 2004 Rotifera from southeastern Mexico, new records and comments on zoogeography ALMA ESTRELLA GARCÍA-MORALES* MANUEL ELÍAS-GUTIÉRREZ* Resumen. Se examinaron muestras litorales y pelágicas procedentes de 36 sistemas acuáticos del sureste de México y la Península de Yucatán. Se encontraron 128 taxa, de los cuales 22 constituyen ampliaciones de ámbito para esta región (Epiphanes brachionus f. spinosus, Anuraeopsis navicula, Euchlanis semicarinata, Macrochaetus collinsi, Colurella sulcata, C. uncinata f. bicuspidata, Lepadella costatoides, L. cyrtopus, Lecane curvicornis f. lofuana, L. curvicornis f. nitida, L. rhytida, Scaridium bostjani, Trichocerca elongata f. braziliensis, Dicranophorus epicharis, D. halbachi, D. prionacis, Testudinella mucronata f. hauerensis, Limnias melicerta, Ptygura libera, Hexarthra intermedia f. braziliensis, Filinia novaezealandiae y Collotheca ornata. Todos los nuevos registros se ilustran y discuten. Adicionalmente se comenta sobre la distribución geográfica de las especies encontradas.
    [Show full text]
  • About the Book the Format Acknowledgments
    About the Book For more than ten years I have been working on a book on bryophyte ecology and was joined by Heinjo During, who has been very helpful in critiquing multiple versions of the chapters. But as the book progressed, the field of bryophyte ecology progressed faster. No chapter ever seemed to stay finished, hence the decision to publish online. Furthermore, rather than being a textbook, it is evolving into an encyclopedia that would be at least three volumes. Having reached the age when I could retire whenever I wanted to, I no longer needed be so concerned with the publish or perish paradigm. In keeping with the sharing nature of bryologists, and the need to educate the non-bryologists about the nature and role of bryophytes in the ecosystem, it seemed my personal goals could best be accomplished by publishing online. This has several advantages for me. I can choose the format I want, I can include lots of color images, and I can post chapters or parts of chapters as I complete them and update later if I find it important. Throughout the book I have posed questions. I have even attempt to offer hypotheses for many of these. It is my hope that these questions and hypotheses will inspire students of all ages to attempt to answer these. Some are simple and could even be done by elementary school children. Others are suitable for undergraduate projects. And some will take lifelong work or a large team of researchers around the world. Have fun with them! The Format The decision to publish Bryophyte Ecology as an ebook occurred after I had a publisher, and I am sure I have not thought of all the complexities of publishing as I complete things, rather than in the order of the planned organization.
    [Show full text]
  • Elizabeth J. Walsh Professor - Biological Sciences University of Texas at El Paso December 10, 2019
    Elizabeth J. Walsh Professor - Biological Sciences University of Texas at El Paso December 10, 2019 1. Education B.S., Animal Biology, University of Nevada, Las Vegas, December 1983. Ph.D., Environmental Biology, University of Nevada, Las Vegas, Las Vegas, Nevada, May, 1992. Mentor: Dr. Peter L. Starkweather Dissertation title: Ecological and genetic aspects of the population biology of the littoral rotifer Euchlanis dilatata 2. Professional Employment - UTEP September 2014 to Director Ecology and Evolutionary Biology Program Present June 2013 to Interim Department Chair September 2014 September 2008 to Professor of Biological Sciences Present University of Texas at El Paso September 2000 to Associate Professor of Biological Sciences August 2008 University of Texas at El Paso September 1994 to Assistant Professor of Biological Sciences 2000 University of Texas at El Paso 3. Professional Employment – Prior to UTEP July 1993 to Postdoctoral Research Associate, September 1994 Department of Zoology, Brigham Young University September 1992- Lecturer, Rutgers University, December 1992 Population Ecology (Graduate level) December 1991- Gallagher Postdoctoral Fellow, June 1993 Academy of Natural Sciences of Philadelphia 4. Professional Societies American Microscopical Society, Executive Committee Member at Large of Board (2012-2014) Association for the Sciences of Limnology and Oceanography Ecological Society of America Society of Environmental Toxicology and Chemistry, Scientific Program Committee (2011-2012) Southwest Association of Naturalist Sigma Xi 5. Awards 1. UTEP Academy of Distinguished Teachers (April 2019) 1. University Faculty Marshals of Students (May 2019, December 2019) 2. Graduate School Faculty Marshal of Students (May 2017) 3. University of Texas Regents’ Outstanding Teaching Award (2015). UTEP nominee, (2014); College of Science (2012, 2013, 2014); Department of Biological Science (2012, 2013, 2014) 4.
    [Show full text]
  • On the Serotonergic Nervous System of Two Planktonic Rotifers, Conochilus Coenobasis and C
    ARTICLE IN PRESS Zoologischer Anzeiger 245 (2006) 53–62 www.elsevier.de/jcz On the serotonergic nervous system of two planktonic rotifers, Conochilus coenobasis and C. dossuarius (Monogononta, Flosculariacea, Conochilidae) Rick Hochbergà Department of Biological Sciences, University of Massachusetts, One University Avenue, Lowell, MA 01854, USA Received 21 November 2005; received in revised form 4 April 2006; accepted 10 April 2006 Corresponding editor: M. Schmitt Abstract The serotonergic nervous systems of two non-colonial species of Conochilus were examined to obtain the first immunohistochemical insights into the neuroanatomy of species of Flosculariacea (Rotifera, Monogononta). Species of Conochilus, subgenus Conochiloides, were examined using serotonin (5-HT) immunohistochemistry, epifluorescence and confocal laser scanning microscopy, and 3D computer imaging software. In specimens of C. coenobasis and C. dossuarius, the serotonergic nervous system is defined by a dorsal cerebral ganglion, apically directed cerebral neurites, and paired nerve cords. The cerebral ganglion contains approximately four pairs of small 5-HT- immunoreactive perikarya; one pair innervates the posterior nerve cords and three pairs innervate the apical field. The most dorsal pair innervates a coronal nerve ring that encircles the apical field. Within the apical field is a second nerve ring that outlines the inner border of the coronal cilia. Together, both the inner and outer nerve rings may function to modulate ciliary activity of the corona. The other two pairs of perikarya innervate a region around the mouth. Specific differences in the distribution of serotonergic neurons between species of Conochilus and previously examined ploimate rotifers include the following: (a) a lack of immunoreactivity in the mastax; (b) a greater number of apically directed serotonergic neurites; and (c) a complete innervation of the corona in both species of Conochilus.
    [Show full text]
  • Rotifer Species Diversity in Mexico: an Updated Checklist
    diversity Review Rotifer Species Diversity in Mexico: An Updated Checklist S. S. S. Sarma 1,* , Marco Antonio Jiménez-Santos 2 and S. Nandini 1 1 Laboratory of Aquatic Zoology, FES Iztacala, National Autonomous University of Mexico, Av. de Los Barrios No. 1, Tlalnepantla 54090, Mexico; [email protected] 2 Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510, Mexico; [email protected] * Correspondence: [email protected]; Tel.: +52-55-56231256 Abstract: A review of the Mexican rotifer species diversity is presented here. To date, 402 species of rotifers have been recorded from Mexico, besides a few infraspecific taxa such as subspecies and varieties. The rotifers from Mexico represent 27 families and 75 genera. Molecular analysis showed about 20 cryptic taxa from species complexes. The genera Lecane, Trichocerca, Brachionus, Lepadella, Cephalodella, Keratella, Ptygura, and Notommata accounted for more than 50% of all species recorded from the Mexican territory. The diversity of rotifers from the different states of Mexico was highly heterogeneous. Only five federal entities (the State of Mexico, Michoacán, Veracruz, Mexico City, Aguascalientes, and Quintana Roo) had more than 100 species. Extrapolation of rotifer species recorded from Mexico indicated the possible occurrence of more than 600 species in Mexican water bodies, hence more sampling effort is needed. In the current review, we also comment on the importance of seasonal sampling in enhancing the species richness and detecting exotic rotifer taxa in Mexico. Keywords: rotifera; distribution; checklist; taxonomy Citation: Sarma, S.S.S.; Jiménez-Santos, M.A.; Nandini, S. Rotifer Species Diversity in Mexico: 1.
    [Show full text]
  • Ultrastructural and Elemental Characterization of the Extracorporeal Tube of the Sessile Rotifer Floscularia Conifera (Rotifera: Gnesiotrocha)
    Accepted: 14 August 2018 DOI: 10.1111/ivb.12230 ORIGINAL ARTICLE Ultrastructural and elemental characterization of the extracorporeal tube of the sessile rotifer Floscularia conifera (Rotifera: Gnesiotrocha) Hui Yang1 | Rick Hochberg2 1College of Sciences, University of Massachusetts Lowell, Lowell, Abstract Massachusetts Rotifers are aquatic microinvertebrates that live in the plankton or in the benthos, 2Biological Sciences, University of which may include a variety of macrophytes. Among these periphytic forms of roti- University Lowell, Lowell, Massachusetts fers, some have taken up a sessile existence and secrete protective tubes around Correspondence their bodies. One type of tube common to species of Floscularia is made of small Hui Yang, College of Sciences, University of Massachusetts Lowell, Lowell, MA. round pellets. To date, the building process and some fine structural details are Email: [email protected] known for Floscularia ringens, but many questions about the composition of the tube Funding information and its ultrastructure still remain unanswered. Here, we use transmission electron NSF (National Science Foundation), Grant/ microscopy and scanning electron microscopy–energy dispersive X‐ray spectroscopy Award Number: DEB 1257110 (SEM–EDS) to study the ultrastructure of the pellets and their elemental composi- tion, respectively, in the putative sister species, Floscularia conifera. We revealed several new details that add important information about the physiology of tube‐ making in species of Floscularia. First, we note an inner secretory membrane that is thin, electron lucent, and supports the external pellets. The pellets are relatively consistent in size and have a small depression on their inner surface. All pellets are individually wrapped in a secretory membrane that completely encapsulates sus- pended materials collected from the surrounding water.
    [Show full text]
  • Ecological and Genetic Aspects of the Population Biology of the Littoral Rotifer Euchlanis Dilatata
    UNLV Retrospective Theses & Dissertations 1-1-1989 Ecological and genetic aspects of the population biology of the littoral rotifer Euchlanis dilatata Elizabeth Jensen Walsh University of Nevada, Las Vegas Follow this and additional works at: https://digitalscholarship.unlv.edu/rtds Repository Citation Walsh, Elizabeth Jensen, "Ecological and genetic aspects of the population biology of the littoral rotifer Euchlanis dilatata" (1989). UNLV Retrospective Theses & Dissertations. 2954. http://dx.doi.org/10.25669/s2xt-3g8q This Dissertation is protected by copyright and/or related rights. It has been brought to you by Digital Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Dissertation in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/or on the work itself. This Dissertation has been accepted for inclusion in UNLV Retrospective Theses & Dissertations by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction.
    [Show full text]
  • Diversity of Monogonont Fixo-Sessile Rotifers
    i Systematics and Phylogeny of Sessile Rotifers (Rotifera, Monogononta, Gnesiotrocha) Phuripong Meksuwan A Thesis Submitted in Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Biology Prince of Songkla University 2015 Copyright of Prince of Songkla University ii Thesis Title Systematics and phylogeny of sessile rotifers (Rotifera, Monogononta, Gnesiotrocha) Author Mr. Phuripong Meksuwan Major Program Biology Major Advisor: Examining Committee: ………………………………………… ……………………………..Chairperson (Assoc. Prof. Dr. Pornsilp Pholpunthin) (Prof. Dr. La-orsri Sanoamuang) ………………………………………….. Co-advisor: (Prof. Dr. Saowapa Angsupanich) ………………………............................ ………………………………………….. (Dr. Hendrik Segers) (Asst. Prof. Dr. Warapond Wanna) ………………………………………….. (Assoc. Prof. Dr. Pornsilp Pholpunthin) The Graduate School, Prince of Songkla University, has approved this thesis as fulfillment of the requirements for the Degree of Doctor of Philosophy in Biology ………………………………......... (Asst. Prof. Dr. Teerapon Srichana) Dean of Graduate School iii This is to certify that the work here submitted is the result of the candidate’s own investigations. Due acknowledgement has been made of any assistance received. ……….………………………Signature (Assoc. Prof. Dr. Pornsilp Pholpunthin) Major Advisor ……….………………………Signature (Mr. Phuripong Meksuwan) Candidate iv I hereby certify that this work has not been accepted in substance for any degree, and is not being currently submitted in candidature for any degree. ……….…………………… Signature (Mr. Phuripong Meksuwan)
    [Show full text]
  • Download Full Article in PDF Format
    On some rare and new species of rotifers (Digononta, Bdelloida; Monogononta, Ploima and Flosculariaceae) in the Kaw River estuary (French Guiana) Claude ROUGIER Université Montpellier II, Écosystèmes lagunaires, case 093, F-34095 Montpellier cedex 05 (France) [email protected] Roger POURRIOT Muséum national d’Histoire naturelle, Département Milieux et Peuplements aquatiques, case postale 51, 55 rue Buffon, F-75231 Paris cedex 05 (France) [email protected] Rougier C. & Pourriot R. 2006. — On some rare and new species of rotifers (Digononta, Bdel- loida; Monogononta, Ploima and Flosculariaceae) in the Kaw River estuary (French Guiana). Zoosystema 28 (1) : 5-16. ABSTRACT The rotifer fauna of the Kaw River estuary (French Guiana) was investigated during the dry season/low water period (November 1998 and 2001) and the rainy season/flood period (June 1999) at three different stations (estuary, mud flat and mangrove creek). One hundred and eight taxa were identified, includ- KEY WORDS ing three new species described herein, Dissotrocha guyanensis n. sp. bearing Rotifera, three pairs of dorsal thorns on the trunk and two long (40-50 µm) spurs on Dissotrocha, Epiphanes, the foot; Epiphanes desmeti n. sp. a typical Epiphanes species with 10-12 (14?) Floscularia, uncinal teeth) ; and Floscularia curvicornis n. sp. bearing two long and curled Testudinella, ventral tentacles. Synchaeta arcifera Xu, 1998, is recorded from South America Synchaeta, French Guiana, for the first time. Some remarks about Testudinella haueriensis Gillard, 1967 new species. are also included. RÉSUMÉ Rotifères rares et nouveaux (Digononta, Bdelloida ; Monogononta, Ploima et Flos- culariaceae), de l’estuaire de la rivière de Kaw (Guyane française).
    [Show full text]