Species Profiles: Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (North Atlantic). Sand Lance.
Species profiles are literature summaries on taxonomy, morphology, range, life history, and environmental requirements of coastal finfishes and shellfishes. They are designed to assist in environmental impact assessment. The systematic classification of the sand lances Ammodytes americanus and Ammod...
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| Format: | Text |
| Language: | English |
| Published: |
1986
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| Online Access: | http://www.dtic.mil/docs/citations/ADA174485 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA174485 |
| Summary: | Species profiles are literature summaries on taxonomy, morphology, range, life history, and environmental requirements of coastal finfishes and shellfishes. They are designed to assist in environmental impact assessment. The systematic classification of the sand lances Ammodytes americanus and Ammodytes dubius is confusing because of overlapping meristic values. In this report, all sand lances in the North Atlantic area off the coast of the United States are treated as a combined group (Ammodytes spp.). Sand lances occur in estuarine, open coast, and offshore habitats. They are important prey to many commercially and recreationally valuable fish and marine mammals. Spawning occurs principally inshore between November and March. Larvae are found along the coasts to the edge of the Continental Shelf. Sand lances occur in schools of from tens of thousands of individuals. They are planktivorous predators; copepods are their major prey item. To rest and to take refuge from predators, sand lances burrow into sand substrates. One ot three-year-old fish dominate populations. Growth rate probably increases from the New York Bight to the Nova Scotia banks. Exploitation of sand lances off the Northeast coast of the United States is presently only for baitfish. |
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