Table 4. Synchrony of change in spatial distribution of larvae and adults in the Northeast U.S. Shelf Ecosystem.
For the 27 taxa where both larval and adult distribution patterns were examined, life-stage synchrony in change patterns was explored in the: along-shelf, cross-shelf, and depth directions for each season adults were collected (spring and fall). Individual taxa were classified as no change if no significant change in distribution was detected for either life stage. If both life stages had a significant shift in distribution and were shifting in the same direction, the taxon was classified as in sync. If one life-stage exhibited a significant shift and the other life-stage exhibited a significant shift in another direction or exhibited no significant shift, the taxon was classified as out of sync.
Directional Change | |||||
---|---|---|---|---|---|
Adult | |||||
Taxon | Synchrony | Pattern | Larval | Spring | Fall |
Merluccius bilinearis | In | Both Seasons | North | North, Inshore | North, Inshore |
Citharichthys arctifrons | In | Both Seasons | North, Inshore | North | Inshore |
Gadus morhua | In | Spring | Deep, North | Deep | |
Scomber scombrus | In | Spring | Inshore | Inshore | |
Lophius americanus | In | Spring | North | North | |
Scophthalmus aquosus | In | Spring | North | North | |
Limanda ferruginea | In | Spring | North | North, Deep | |
Clupea harengus | In | Spring | Offshore | Offshore | |
Micropogonias undulatus | In | Fall | Inshore, North | Inshore | |
Hippoglossina oblonga | In | Fall | North | North | |
Ammodytes spp. | Out | Larval shift only | North, Deep | ||
Enchelyopus cimbrius | Out | Larval shift only | North | ||
Centropristis striata | Out | Larval shift only | North, Inshore | ||
Peprilus spp. | Out | Adult shift only-Both | Inshore | Inshore, Shallow | |
Paralichthys dentatus | Out | Adult shift only-Both | North | North | |
Hippoglossoides platessoides | Out | Adult shift only-Both | Offshore | Offshore | |
Merluccius albidus | Out | Adult shift only-Both | South | Shallow | |
Glyptocephalus cynoglossus | Out | Adult shift only-Spring | Deep | ||
Myoxocephalus octodecemspinosus | Out | Adult shift only-Spring | North | ||
Sebastes spp. | Out | Adult shift only-Spring | Offshore | ||
Anarhichas spp. | Out | Adult shift only-Fall | Inshore | ||
Cynoscion regalis | Out | Adult shift only-Fall | North | ||
Pollachius virens | Out | Both-Out of Sync | Offshore, Shallow | Deep | Deep |
Melanogrammus aeglefinus | No Change | No Change | |||
Pomatomus saltatrix | No Change | No Change | |||
Leiostomus xanthurus | No Change | No Change | |||
Pseudopleuronectes americanus | No Change | No Change |