Warlen et a\ Recruitment of larval Bievoortia tyrannus to North Carolina and New Jersey estuaries 



615 



NORTH CAROLINA 

 1989-90 



NEW JERSEY 

 1989-90 



OCT , NOV I DEC I J»N I .EB I M.« I .PR I „»» I JUN I "' OCT I NOV I DEC I MN I FEB I MAR I ^^ I MAT I J^ I 



JO 

 100 



NORTH CAROLINA 

 1990-91 



NEW JERSEY 

 1990-91 



OCT I NOV I DEC I JAN I fEB I MAR I APH I MAY I JUN I OCT I NOV I DEC I JAN I FEB I MAR I APR I UAT I JUN I 



lOOr 



NORTH CAROLINA 

 1992-93 



NEW JERSEY 

 1992-93 



OCT I NOV I DEC I JAN I FEB I MAR I APR I MAT I JUN I OCT I NOV I DEC I JAN I FEB I MAR I APR I MAT I JUN I 



Collection date 



Figure 4 



Mean of estimated age (days) with 95^^ confidence limits of larval Atlantic menhaden (Brevoortia tyran- 

 nus) collected weekly at Pivers Island. North Carolina, and Little Sheepshead Creek, New Jersey, during 

 their estuarine recruitment in 1989-90, 1990-91, and 1992-93. 



the recruitment season. Some larvae originating in the 

 southernmost portion of the MAB in fall may even contrib- 

 ute some recruits to the SAB as three-dimensional circula- 

 tion models have predicted (Quinlan et al., 1999; Rice et 

 al., 1999; Stegmann et al.. 1999). However, any adults that 



might remain in the MAB after November would experi- 

 ence ocean temperatures on the continental shelf that are 

 not only too cold to allow menhaden spawning but that alSo 

 might prevent eggs from hatching or larvae from develop- 

 ing. Even if we accept the minimum temperature of 13°C 



