2008 Year of Young Shows Below Average Reproduction - Stripers247.com Forums
 
Striped Bass Fishing Site Map | Contact Us | Fishing Log Software | Fishing Online | Advertise
to UPLOAD: please register or login

Go Back   Stripers247.com Forums > Striper Information & Services > Striped Bass Fishery Conservation / Politics / Management / News
Forgot Password? Register Now!!

Striped Bass Fishery Conservation / Politics / Management / News Public Access / Politics/ Permits / Conservation Management / News


Reply
 
Thread Tools
  #1  
Old 01-09-2009, 02:51 AM
Striperjim's Avatar
Striperjim Striperjim is offline
Registered User
 
Join Date: Mar 2004
Location: Planet Earth
Posts: 4,316
Default 2008 Year of Young Shows Below Average Reproduction

2008 Young-of-Year Striped Bass Survey Shows Below Average Reproduction
The Maryland Department of Natural Resources Fisheries Service recently finalized the 2008 striped bass (rockfish) juvenile index, a measure of striped bass spawning success in Chesapeake Bay. The 2008 index is 3.2, below the long-term average of 11.7. During the survey DNR biologists collected 422 young-of-year (YOY) striped bass.

“Healthy striped bass populations are known for such highly variable spawning success,” said Eric Durell, DNR Fisheries Biologist. “This is just the third time in the past decade that striped bass reproduction in Maryland’s Chesapeake Bay has been below average.”


Two of the most successful spawning years ever documented (2001 and 2003) also occurred during this period. Typically, several years of average reproduction are interspersed with occasional large and small year-classes.

Poor reproduction was also observed for other spring-spawning species such as white perch and American shad, leading biologists to suspect that large-scale environmental factors may be responsible. Heavy rains in early May resulted in decreased water temperatures on major striped bass spawning grounds.

“This spring water temperatures fell below levels known to be lethally cold to striped bass eggs and larvae,” explained Durell. “Survival of these sensitive life stages is a major determinant of spawning success.”

The underlying spanwing stock is still healhty and is watched closely by DNR biologists and monitored and in partnerhsip with other coastal states through the Atlantic State's Marine Fisheries Commission.

DNR biologists have monitored the reproductive success of striped bass and other species in Maryland’s portion of the Chesapeake Bay annually since 1954. Twenty-two sites were surveyed in the four major spawning systems: Choptank, Potomac, and Nanticoke Rivers, and the Upper Chesapeake Bay. Biologists visit each site monthly from July through September, collecting fish samples with two sweeps of a 100-foot beach seine. The index is calculated as the average catch of YOY fish per sample.
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Bookmarks

Tags
2008, average, reproduction, shows, year, young

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2008 The Year of the 70 pounder Striperjim Record Striped bass 36 04-20-2009 01:27 PM
2008 Fun Times - Year In Review Striperjim Images and Pictures 14 12-24-2008 03:32 PM
Listing of Boat Shows VA. N.C. S.C. 2008 visitoutdoors.com Seminars / Expos / Tourneys 0 01-17-2008 08:55 PM
2005 Young-Of-Year Striper Survey Shows High Reproduction - 2006 - No Striperjim The Striper Forum 13 11-05-2006 10:31 PM
Newbie with reproduction question. Moser The Striper Forum 1 01-08-2005 05:27 AM


All times are GMT -4. The time now is 01:08 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright 2004 - 2013 Stripers247.com LLC
Affiliated Sites:   Noreast.com   Allcoast.com    2coolfishing.com