Download or read book Species Profiles written by Daniel Joseph Grosse and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species profiles written by W. Herbert Wilson (Jr.) and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by John C. Ogden and published by . This book was released on 1987 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by W. Herbert Wilson and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates North Atlantic Sandworm and Bloodworm written by and published by . This book was released on 1988 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Species profiles are literature summaries of the taxonomy, morphology, range, life history, and environmental requirements of coastal aquatic species. They are prepared to assist in environmental impact assessment. The sandworm (Nereis virens) is a commercially valuable baitworm, reaching lengths of 30 cm. Most worms lives 4 or 5 years. Males swarm in the water column before spawning in the females' burrows. Both males and females die after spawning. A planktonic larval phase is either brief or lacking. Sandworms are omnivorous. They can significantly reduce the abundance of smaller infaunal organisms. Predators on sandworms include bloodworms and gulls. Physiological tolerances are broad although most worms are found in fine sand with water of high salinity. Sandworms have been the subject of much toxicological research and readily adapt to laboratory conditions. The bloodworm (Glycera dibranchiata), attaining lengths of 40 cm, is also an important baitworm. Its maximum life span is 5 years. Spawning occurs in the water column with both males and females dying after spawning. Bloodworms are primarily predators, preying on certain species of polychaetes and crustaceans, although they are capable of digesting detritus. Bloodworms appear to have few predators. Bloodworms possess at least two types of hemoglobin, permitting them to tolerate a wide range of oxygen tensions. Keywords: Fisheries; Salinity; Feeding habits; Annelids; Life cycles; Marine biology. (kt).

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1986 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Linda Pushee Mercer and published by . This book was released on 1989 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1989 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Jon G. Stanley and published by . This book was released on 1986 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1986 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Lori S. Weiss-Glanz and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1986 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by U.S. Fish and Wildlife Service and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Victor G. Burrell and published by . This book was released on 1986 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: