Long-term dynamics of larval and early juvenile spot ( Leiostomus xanthurus) ) off the US East Coast: relating ocean origins, estuarine ingress, and changing environmental conditions

被引：0

作者：

Allen, Dennis M. ^{[1
]}

Govoni, John J. ^{[2
]}

Able, Kenneth W. ^{[3
]}

Buckel, Jeffrey A. ^{[2
]}

Hale, Edward A. ^{[4
]}

Hilton, Eric J. ^{[5
]}

Kellison, G. Todd ^{[6
]}

Targett, Timothy E. ^{[7
]}

Taylor, J. Christopher ^{[8
]}

Walsh, Harvey J. ^{[9
]}

机构：

[1] Univ South Carolina, Baruch Marine Field Lab, POB 1630, Georgetown, SC 29442 USA

[2] North Carolina State Univ, Dept Appl Ecol, Ctr Marine Sci & Technol, 303 Coll Circle, Morehead City, NC 28557 USA

[3] Rutgers State Univ, Marine Field Stn, 800 Great Bay Blvd, Tuckerton, NJ 08087 USA

[4] Univ Delaware, Coll Earth Ocean & Environm, 1044 Coll Dr, Lewes, DE 19958 USA

[5] Virginia Inst Marine Sci, William & Mary, 1370 Greate Rd, Gloucester Point, VA 23062 USA

[6] NOAA, Southeast Fisheries Sci Ctr, Natl Marine Fisheries Serv, 101 Pivers Isl Rd, Beaufort, NC 28516 USA

[7] Univ Delaware, Sch Marine Sci & Policy, Coll Earth Ocean & Environm, 1044 Coll Dr, Lewes, DE 19958 USA

[8] NOAA, Natl Ocean Serv, Natl Ctr Coastal Ocean Sci, 101 Pivers Isl Rd, Beaufort, NC 28516 USA

[9] NOAA, Natl Marine Fisheries Serv, Northeast Fisheries Sci Ctr, 28 Tarzwell Dr, Narragansett, RI 02882 USA

来源：

FISHERY BULLETIN | 2024年 / 122卷 / 04期

基金：

美国国家科学基金会;

关键词：

MENHADEN BREVOORTIA-TYRANNUS; SEA-SURFACE TEMPERATURE; SOUTH ATLANTIC BIGHT; NORTH-CAROLINA; UNITED-STATES; NURSERY AREAS; ONSLOW BAY; MICROPOGONIAS-UNDULATUS; FISH ASSEMBLAGES; BEAUFORT INLET;

D O I：

10.7755/FB.122.4.3

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Ichthyoplankton data sets based on collections from estuaries in South Carolina, North Carolina, Virginia, Delaware, and New Jersey and from ocean cruises off the U.S. East Coast were examined to determine spawning locations in the ocean, cross-shelf distributions of larvae, and movements of spot (Leiostomus xanthurus) into estuaries. Spot spawn during fall and winter near the edge of the continental shelf, primarily south of Cape Hatteras in North Carolina. We documented additional spawning of spot north of Cape Hatteras, close to the coast, in summer and fall. Larval and early juvenile spot enter estuaries from November through May in South Carolina and North Carolina and from January through June in Virginia, Delaware, and New Jersey. Numbers of spot per volume of water sampled decreased from south to north among estuaries and in the ocean. Interannual variations in abundance were high, and no long-term trends were determined. Over the decades, median annual lengths of ingressing larval and juvenile spot decreased as annual mean water temperature increased in South Carolina and North Carolina. The timing of ingress was positively correlated with water temperature. Continued increases in water temperature on the East Coast will likely lead to additional changes in oceanic distribution and ingress patterns of spot. Our findings indicate the value of synthesizing information from long-term studies con-ducted across broad geographic scales.

引用

页码：162 / 185

页数：24