February 17, 2018, 07:51:39 PM
 
*
Welcome, Guest. Please login or register.
Did you miss your activation email?
 
 
 
Total time logged in: 0 minutes.
 
   Home   Help Login Register  

     
 

A D V E R T I S E M E N T

Pages: [1]   Go Down
  Print  
Author Topic: Chesapeake Blue Crab Dredge Survey for 2002  (Read 1453 times)
0 Members and 1 Guest are viewing this topic.
Crabpop
Member
*
Offline Offline

Gender: Male
Posts: 598
Location: Severn, Maryland USA


Home Sweet Home




Ignore
« on: May 04, 2003, 12:01:49 AM »

Guys and Gals, the DNR's Chesapeake Bay-wide Blue Crab Winter Dredge Survey for 2002 is out and the news is not good.  URL is:

http://www.dnr.state.md.us/fisheries/crab/winter_dredge.html

Unfortunately, the number of crabs that winter-over in the bay continues to decline. Estimated numbers dropped from a high of 806,365,071 crabs 1990 to a low of 274,906,106 crabs in 2002.  The only positive note is the 2002 survey shows an increase over the 2001 survey of 238,101,468 crabs.  Table 5 from the survey (attached below) tells the sad story.  
 
ESTIMATED ABSOLUTE ABUNDANCE:
Estimated absolute abundance is the estimate of how many blue crabs are over-wintering in the Chesapeake Bay. The number is based on the density of crabs (crabs/m2), but multiplied over the entire sample area (9814.57 km2). The estimated for each year are listed in Table 5:

Table 5. Annual estimates of over-wintering abundance (in numbers) of blue crabs in Chesapeake Bay, 1990 2002.
Year Abundance
1990 806,365,071
1991 839,440,172
1992 374,327,700
1993 866,822,822
1994 525,570,224
1995 494,948,765
1996 750,814,605
1997 684,664,403
1998 357,446,639
1999 313,379,220
2000 299,246,239
2001 238,101,468
2002 274,906,106

Crabpop Cry
Logged

Severn, Md USA

A D V E R T I S E M E N T


Pages: [1]   Go Up
  Print  
 
Jump to:  

 
 
Home
 
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder


Google visited last this page October 25, 2017, 10:32:04 AM
wordpress