Re: [Killietalk] Red tide

["wusong" <wusong at drunkenbastards_com>]

???

I thought red tide was already known to be toxic to fish and inverts...

Dave S.  


---------- Original Message ----------------------------------
From: "Robert Goldstein" <rgoldstein at rjgaCarolina_com>
Reply-To: killifish discussion list <killietalk at aka_org>
Date:  Mon, 10 Sep 2007 16:11:16 -0400

>Sheepshead Minnows Exposed to Red Tide Died Quickly
>AP
>Posted: 2007-09-07 17:52:37
>NORFOLK, Va. (AP) - Sheepshead minnows exposed to samples of red tide from 
>waters in southeastern Virginia and the lower Chesapeake Bay died within 
>hours, scientists report.
>
>The findings are the first indication the burgundy-hued algae blooms could 
>cause serious aquatic harm.
>
>Scientists stressed Thursday that the widespread algae blooms, which smell 
>of rotten eggs, are not harmful to humans. Still, state health and 
>environmental officials caution against swimming through the discolored 
>waters.
>
>At Old Dominion University, 12 sheepshead minnows were put into a lab tank 
>filled with algae species thought to be responsible for the red tide. The 
>algae came from the lower James River, at the mouth of the Nansemond River 
>in Suffolk.
>
>Within hours, the fish died - one after 37 minutes, said Margaret 
>Mulholland, an ODU associate professor and expert in harmful algae blooms.
>
>The algae species, called Cochlodinium polykrikoides, appeared to secrete a 
>mucous that clogged fish gills and killed the 2-week-old juveniles.
>
>Over the past 30 years, algae blooms have become common occurrences in the 
>Chesapeake Bay, the result of summer heat, spring rains and excessive 
>nutrient pollution. It is the bay's No. 1 pollutant.
>
>Too much nitrogen and phosphorus are entering the bay from sewage plants, 
>lawn fertilizers, and other sources in the bay's vast watershed.
>
>Mulholland and a team of scientists and students on Thursday sampled more 
>algae blooms in Hampton Roads. Chris Gobler, a scientist from the State 
>University of New York at Stony Brook, joined the scientists to compare 
>blooms here to those off Long Island.
>
>A similar algae species has begun to crop up each summer for the past three 
>or four years in coastal New York, he said. Lab tests involving the New York 
>red tide also found that juvenile fish routinely died when exposed to dense 
>concentrations of the algae.
>
>Roger Everton, a water quality specialist with the Virginia Department of 
>Environmental Quality, said new reports of blooms have begun to taper off 
>the past week.
>
>Information from: The Virginian-Pilot, http://www.pilotonline.com
>
>
>Copyright 2007 The Associated Press.
>
>----- Original Message ----- 
>From: <killifish777 at comcast_net>
>To: <killietalk at aka_org>
>Sent: Monday, September 10, 2007 2:52 PM
>Subject: [Killietalk] Minnesota Killie Keepers Show
>
>
>> The MKKA annual Show & Auction is this coming weekend. September 15th & 
>> 16th.
>> It's not too late to send show and/or auction only fish, eggs, plants, or 
>> any killie
>> related items. We have a generous 70% split going to the seller. We hope 
>> you can
>> attend and celebrate killifish with us for the weekend.
>> See the AKA BNL or www.mkka.net for details.
>>
>> Craig
>> Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
>> Archives are at http://fins.actwin.com/killietalk/
>> Modify your subscription at 
>> http://www.actwin.com/mailman/listinfo.cgi/killietalk
>> 
>
>Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
>Archives are at http://fins.actwin.com/killietalk/
>Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk
>
 

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