next message in archive
no next message in thread
previous message in archive
Index of Subjects
--Apple-Mail-6--991979171 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Begin forwarded message: > From: Jim (James W.) Wolford <jimwolford@eastlink.ca> > Date: May 17, 2014 8:30:50 PM ADT > To: Nature BNS <nature@blomidonnaturalists.ca>, Jim Wolford > <jimwolford@eastlink.ca> > Subject: re fairy shrimps, Blomidon Park, & PARK EVENTS GUIDE > 2014-2015. > > http://www.novascotiaparks.ca/misc/park_events.asp > > Above is the URL for the PARK EVENTS GUIDE 2014-2015 from the > Government of Nova Scotia's Dept. of Natural Resources, and it was > not very easy to find on line. > > This relates to tomorrow's field trip in Blomidon Provincial Park, > to the woodland pond to explore pond life in this vernal pond which > is the habitat for the very rare, fragile, and beautiful fairy shrimp. > > Thanks to Dave Webster for looking up this old note (below) from me > in 2011 concerning the fairy shrimps and how rare they are in N.S. > and their natural history. > > Cheers from Jim in Wolfville. > > From: "James W. Wolford" > <jimwolford@eastlink.ca<mailto:jimwolford@eastlink.ca>> > Sent: Sunday, June 12, 2011 8:17 PM > > Re name of fairy-shrimp in Blomidon Park woodland pond > > Sorry this has taken me so long to remember to look it up, but the > name of the fairy shrimp in the woodland pond of Blomidon Prov. > Park is Eubranchipus intricatus (should be in Italics, of > course). And the name should also include the author and date, > which in this case is Hartland-Rowe, 1967. > > This species is widely distributed in Canada west of Nova Scotia, > from Quebec west to B.C., but its discovery in May of 1988 in this > pond was the first confirmed record for fairy shrimp in Nova > Scotia. Since then the same species was found just north of > Somerset School northeast of Berwick, also in King's County, Nova > Scotia, but nowhere else. Annual field trips to the Blomidon Park > pond in late May have confirmed the continual presence of this > species up to 2011 true also for 2011 & 2012, but we were probably > too late seasonally in 2013 -- here's hoping for success tomorrow, > May 18/14)(JW). > > The original identification to species was made by Graham Daborn of > Acadia University, and this discovery in 1988 was by Pierre > Taschereau of Dalhousie University, who was leading a park field > trip in which I was a participant. I rapidly collected some > specimens, hopefully with an appropriate permit from Dept. of > Lands and Forests (now Natural Resources), and delivered them to > Daborn. He identified them to species, and then documented the > discovery with a paper published in Canadian Field Naturalist > journal, Vol 105, issue 4, pp. 571-572, of 1992, written by Daborn > with co-authors Wolford and Taschereau. > > This paper also states that the arctic fairy shrimp, Branchinecta > paludosa (Muller, 1788), was apparently represented in a collection > received in December of 1928, with the locality given as "Taylor > Harbor, Nova Scotia", which researcher R.W. Dexter in 1958 thought > may have been really Taylor Head on the Eastern Shore. Daborn did > a search there in 1975 (unpublished) but found no fairy shrimps. > -------------------- > Here's a note from this spring, 2014, while I was in B.C.: > > Date: April 30, 2014 8:31:46 PM ADT > To: NatureNS <naturens@chebucto.ns.ca>, Jim Wolford > <jimwolford@eastlink.ca>, Stephen Shaw <srshaw@Dal.Ca> > re fairy shrimp in vernal pond, Blomidon Provincial Park > > Hi, Steve. As I think you know, I am in B.C. at the moment. I > need a refresher on this critter's Latinized name -- I think it is > Eubranchipus species? (in family Chirocephalidae?), and, yes, it > and nearly all fairy shrimps are fresh-water critters, as opposed > to the too-well-known brine shrimp, Artemia salina, which occurs in > hyper-saline lakes (super-salty) all over the world (including > western Canada) plus aquaria in pet shops for food for small fish, > plus dry bottles/cans of eggs from the brine shrimp that can be > wetted and the larvae raised as fish-food or raised further as "sea > monkeys", which is one of the biggest rip-offs out there in the > marketplace. > > Googling "fairy shrimp" will get you many sites with bits of info' > on fairy shrimps, of which there are many kinds. > > How big are they? Up to about 2 cm. long or a bit more than half- > an-inch. The eggs from last year (and previous years) are on the > pond bottom and previous-years' pond edges, and they hatch when > flooded in spring from melt-waters and rains (and perhaps other > sources like springs?). The tiny larvae grow gradually until they > get full-sized and mature in mid-to-late-May or early June. > > The males look different in the head end because of their enlarged > second? antennae, and mature females develop a round egg-sac at the > base of the "tail". > > Both sexes swim on their backs, "upside-down" to us, and their > multiple pairs of thoracic appendages are constantly beating very > rapidly, which is triply functional in being for swimming, for > aeration via gills on those appendages, and for feeding mainly on > single-celled green algae. > > After the production of eggs, all the adults die by early summer. > Then the eggs are resistant to both drying and freezing, and > perhaps might even require some such events. Some fairy shrimps, > like brine shrimps, produce eggs with quite long "shelf lives", > which is probably very well known for brine shrimps. > > Graham Daborn of Acadia University Biology and the Irving Centre is > the biologist who identified these fairy shrimps from their > original discovery in that Blomidon Park vernal pond in 1988 (by > Pierre Taschereau, and I was there when he first saw and recognized > them in the water). The Latinized name is Eubranchipus intricatus. > > Cheers from Jim back in Wolfville. --Apple-Mail-6--991979171 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=US-ASCII <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; "> <br><div><br><div>Begin forwarded message:</div><br = class=3D"Apple-interchange-newline"><blockquote type=3D"cite"><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" = style=3D"font: 12.0px Helvetica; color: #000000"><b>From: = </b></font><font face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px = Helvetica">Jim (James W.) Wolford <<a = href=3D"mailto:jimwolford@eastlink.ca">jimwolford@eastlink.ca</a>></fon= t></div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: = 0px; margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" = color=3D"#000000" style=3D"font: 12.0px Helvetica; color: = #000000"><b>Date: </b></font><font face=3D"Helvetica" size=3D"3" = style=3D"font: 12.0px Helvetica">May 17, 2014 8:30:50 PM = ADT</font></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#000000" style=3D"font: 12.0px Helvetica; color: = #000000"><b>To: </b></font><font face=3D"Helvetica" size=3D"3" = style=3D"font: 12.0px Helvetica">Nature BNS <<a = href=3D"mailto:nature@blomidonnaturalists.ca">nature@blomidonnaturalists.c= a</a>>, Jim Wolford <<a = href=3D"mailto:jimwolford@eastlink.ca">jimwolford@eastlink.ca</a>></fon= t></div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: = 0px; margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" = color=3D"#000000" style=3D"font: 12.0px Helvetica; color: = #000000"><b>Subject: </b></font><font face=3D"Helvetica" size=3D"3" = style=3D"font: 12.0px Helvetica"><b>re fairy shrimps, Blomidon Park, = & PARK EVENTS GUIDE 2014-2015.</b></font></div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; min-height: 14px; "><br></div> <a = href=3D"http://www.novascotiaparks.ca/misc/park_events.asp">http://www.nov= ascotiaparks.ca/misc/park_events.asp</a> <div><br></div><div>Above is = the URL for the PARK EVENTS GUIDE 2014-2015 from the Government of Nova = Scotia's Dept. of Natural Resources, and it was not very easy to find on = line.</div><div><br></div><div>This relates to tomorrow's field trip in = Blomidon Provincial Park, to the woodland pond to explore pond life in = this vernal pond which is the habitat for the very rare, fragile, and = beautiful fairy shrimp.</div><div><br></div><div>Thanks to Dave Webster = for looking up this old note (below) from me in 2011 concerning the = fairy shrimps and how rare they are in N.S. and their natural = history.</div><div><br></div><div>Cheers from Jim in = Wolfville.</div><div><br></div><div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">From: "James = W. Wolford" <<a = href=3D"mailto:jimwolford@eastlink.ca">jimwolford@eastlink.ca</a><<a = href=3D"mailto:jimwolford@eastlink.ca">mailto:jimwolford@eastlink.ca</a>&g= t;></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">Sent: Sunday, June 12, 2011 8:17 = PM</div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: = 0px; margin-left: 0px; "><br></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Re name = of fairy-shrimp in Blomidon Park woodland pond</div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; min-height: 14px; "><br></div><div style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = min-height: 14px; ">Sorry this has taken me so long to remember to look = it up, but the name of the fairy shrimp in the woodland pond of = Blomidon Prov. Park is Eubranchipus intricatus (should be in = Italics, of course). And the name should also include the = author and date, which in this case is Hartland-Rowe, 1967.</div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; min-height: 14px; "><br></div><div style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = "> This species is widely distributed in Canada west of Nova = Scotia, from Quebec west to B.C., but its discovery in May of 1988 = in this pond was the first confirmed record for fairy shrimp in = Nova Scotia. Since then the same species was found just north of = Somerset School northeast of Berwick, also in King's County, Nova = Scotia, but nowhere else. Annual field trips to the Blomidon = Park pond in late May have confirmed the continual presence of = this species up to 2011 true also for 2011 & 2012, but we were = probably too late seasonally in 2013 -- here's hoping for success = tomorrow, May 18/14)(JW).</div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: = 14px; "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">The original identification to = species was made by Graham Daborn of Acadia University, and this = discovery in 1988 was by Pierre Taschereau of Dalhousie = University, who was leading a park field trip in which I was a = participant. I rapidly collected some specimens, hopefully = with an appropriate permit from Dept. of Lands and Forests (now = Natural Resources), and delivered them to Daborn. He = identified them to species, and then documented the discovery with = a paper published in Canadian Field Naturalist journal, Vol 105, = issue 4, pp. 571-572, of 1992, written by Daborn with co-authors = Wolford and Taschereau.</div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: = 14px; "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; ">This paper also states that the = arctic fairy shrimp, Branchinecta paludosa (Muller, 1788), was = apparently represented in a collection received in December of 1928, = with the locality given as "Taylor Harbor, Nova Scotia", which = researcher R.W. Dexter in 1958 thought may have been really Taylor = Head on the Eastern Shore. Daborn did a search there in 1975 = (unpublished) but found no fairy shrimps.</div></div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">--------------------</div><div style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Here's a = note from this spring, 2014, while I was in B.C.:</div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><br></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" style=3D"font: = 12.0px Helvetica"><b>Date: </b></font><font face=3D"Helvetica" size=3D"3" = color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: #001cd5">April = 30, 2014 8:31:46 PM ADT</font></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font = face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px Helvetica"><b>To: = </b></font><font face=3D"Helvetica" size=3D"3" color=3D"#001cd5" = style=3D"font: 12.0px Helvetica; color: #001cd5">NatureNS <<a = href=3D"mailto:naturens@chebucto.ns.ca"><font color=3D"#001ee6" = style=3D"color: #001ee6">naturens@chebucto.ns.ca</font></a>>, Jim = Wolford <<a href=3D"mailto:jimwolford@eastlink.ca"><font = color=3D"#001ee6" style=3D"color: = #001ee6">jimwolford@eastlink.ca</font></a>>, Stephen Shaw <<a = href=3D"mailto:srshaw@Dal.Ca"><font color=3D"#001ee6" style=3D"color: = #001ee6">srshaw@Dal.Ca</font></a>></font></div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#001cd5" = style=3D"font: 12.0px Helvetica; color: #001cd5"></font><span = class=3D"Apple-style-span" style=3D"color: rgb(0, 28, 213); font-size: = 12px; "><b> re fairy shrimp in vernal pond, Blomidon Provincial = Park</b></span></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; font: normal normal normal = 12px/normal Helvetica; color: rgb(0, 28, 213); min-height: 14px; = "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5">Hi, Steve. As I think you know, I am in B.C. at the = moment. I need a refresher on this critter's Latinized name -- I = think it is Eubranchipus species? (in family Chirocephalidae?), and, = yes, it and nearly all fairy shrimps are fresh-water critters, as = opposed to the too-well-known brine shrimp, Artemia salina, which occurs = in hyper-saline lakes (super-salty) all over the world (including = western Canada) plus aquaria in pet shops for food for small fish, = plus dry bottles/cans of eggs from the brine shrimp that can be wetted = and the larvae raised as fish-food or raised further as "sea monkeys", = which is one of the biggest rip-offs out there in the = marketplace. </font></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal = normal normal 12px/normal Helvetica; min-height: 14px; "><br></div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#001cd5" = style=3D"font: 12.0px Helvetica; color: #001cd5">Googling "fairy shrimp" = will get you many sites with bits of info' on fairy shrimps, of which = there are many kinds.</font></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal = normal normal 12px/normal Helvetica; color: rgb(0, 28, 213); min-height: = 14px; "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5">How big are they? Up to about 2 cm. long or a bit more = than half-an-inch. The eggs from last year (and previous years) = are on the pond bottom and previous-years' pond edges, and they = hatch when flooded in spring from melt-waters and rains (and perhaps = other sources like springs?). The tiny larvae grow gradually until = they get full-sized and mature in mid-to-late-May or early June. = </font></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; font: normal normal normal = 12px/normal Helvetica; color: rgb(0, 28, 213); min-height: 14px; = "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5">The males look different in the head end because of their = enlarged second? antennae, and mature females develop a round egg-sac at = the base of the "tail". </font></div><div style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: = normal normal normal 12px/normal Helvetica; color: rgb(0, 28, 213); = min-height: 14px; "><br></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font = face=3D"Helvetica" size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px = Helvetica; color: #001cd5">Both sexes swim on their backs, "upside-down" = to us, and their multiple pairs of thoracic appendages are constantly = beating very rapidly, which is triply functional in being for swimming, = for aeration via gills on those appendages, and for feeding mainly on = single-celled green algae. </font></div><div style=3D"margin-top: = 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: = normal normal normal 12px/normal Helvetica; color: rgb(0, 28, 213); = min-height: 14px; "><br></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font = face=3D"Helvetica" size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px = Helvetica; color: #001cd5">After the production of eggs, all the adults = die by early summer. Then the eggs are resistant to both drying = and freezing, and perhaps might even require some such events. = Some fairy shrimps, like brine shrimps, produce eggs with quite = long "shelf lives", which is probably very well known for brine = shrimps.</font></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; font: normal normal normal = 12px/normal Helvetica; color: rgb(0, 28, 213); min-height: 14px; = "><br></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5">Graham Daborn of Acadia University Biology and the Irving = Centre is the biologist who identified these fairy shrimps from their = original discovery in that Blomidon Park vernal pond in 1988 (by Pierre = Taschereau, and I was there when he first saw and recognized them in the = water). The Latinized name is Eubranchipus = intricatus.</font></div><div style=3D"margin-top: 0px; margin-right: = 0px; margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5"><br></font></div><div style=3D"margin-top: 0px; margin-right: = 0px; margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#001cd5" style=3D"font: 12.0px Helvetica; color: = #001cd5">Cheers from Jim back in = Wolfville.</font></div></div></blockquote></div><br></body></html>= --Apple-Mail-6--991979171--
next message in archive
no next message in thread
previous message in archive
Index of Subjects