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The shad spawns in the spring when the water temperature is in the upper 60s (°F). [6] Threadfin shad are a pelagic (open water) schooling species that is typically found in large numbers. The shad spawn occurs in the spring and early summer with a secondary spawn often occurring in the early fall.
The start of the spawning period is typically between mid-May and early June, and is triggered by rising water temperatures. The number of eggs per individual varies between populations, but typically it is 12,500 eggs for a two-year-old and peaks at 380,000 eggs for a four-year-old.
Shad are also valued as a sport fish that exhibit complex and little-understood feeding behaviors while spawning. Unlike salmon, shad retain the ability to digest and assimilate food during the anadromous migration. Like other fish, turbidity and water temperature can trigger their feeding instinct.
American shad exhibit complex and little-understood feeding behavior while spawning. Unlike salmon, shad retain the ability to digest and assimilate food during the anadromous migration. [citation needed] Like other fish, their feeding instinct can be triggered by a variety of factors such as turbidity and water temperature.
In Connecticut, blueback shad spawn in 14 to 17 °C (57 to 63 °F) water, usually later in the spring than the alewife. During spawning, many eggs are deposited over the stream bottom, where they stick to gravel, stones, logs, or other objects. Juveniles spend three to seven months in fresh water, then migrate to the ocean.
The name skipjack shad comes from the fact that it is commonly seen leaping out of the water while feeding. [4] Other common names include blue herring, golden shad, river shad, Tennessee tarpon, and McKinley shad. The skipjack shad is restricted to the Gulf of Mexico drainage basins. Skipjack are found in clear to moderately turbid water in ...
A person fishes with offshore oil and gas platform Esther in the distance on January 5, 2025 in Seal Beach, California. President Joe Biden has permanently banned future offshore oil and gas ...
After water hardening, the eggs become semibuoyant and develop as they drift along the bottom. [ 12 ] [ 13 ] [ 16 ] Fecundity ranges from 43,000 – 475,000 eggs per female, and although the developmental stages of eggs, larvae, and juveniles have been described, little is known concerning the distribution, ecology, and growth rates of these ...