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Articles 361 - 368 of 368

Full-Text Articles in Aquaculture and Fisheries

The Report Of The Southern Western Australian Shark Working Group., P. Millington Apr 1986

The Report Of The Southern Western Australian Shark Working Group., P. Millington

Fisheries management papers

The southern Western Australian Shark Working Group was formed to investigate the southern shark fishery and advise the Minister for Fisheries on options for future management. Membership comprised six fishermen from regional professional fishermen's associations and two Fisheries Department officers. The Working Group considered that each shark fisherman obtaining an entitlement should then be restricted in the length of fishing gear he can use and the number of months he can fish. The individual's time and gear entitlement would be approximately that length of gear being used and time spent fishing in a period shortly before the bench mark date. …


Effects Of Commercial Fish Removal On Sport Fish Populations In Two Arkansas Reservoirs, Tommie Crawford Jan 1984

Effects Of Commercial Fish Removal On Sport Fish Populations In Two Arkansas Reservoirs, Tommie Crawford

Journal of the Arkansas Academy of Science

Commercial netting occurred October through April, 1971-1976 on Nimrod Lake and from October through April, 1973-1977 on Blue Mountain Lake in west central Arkansas. Using 7.6 cm or larger mesh gill and/or trammel nets, commercial fishermen harvested commercial fishes (buffalofishes [Ictiobus spp.]; common carp [Cyprinus carpio], carpsuckers [Carpiodes spp.]; drum [Aplodinotus grunniens]; gars [Lepisosteus spp.]; suckers [Catostomidae); and catfishes [Ictalurus spp. and Pylodictis olivaris]). During the study period, cove rotenone samples were conducted on an annual basis. Fishes collected were placed into age classes and enumerated. Data were then grouped into general categories (black basses [Micropterus spp], crappie [Pomoxis spp.], …


Observed Changes In The Largemouth Bass Population Since Construction Of A New Pump Storage Reservoir At Charleston, Illinois, Lawrence B. Durham Jan 1983

Observed Changes In The Largemouth Bass Population Since Construction Of A New Pump Storage Reservoir At Charleston, Illinois, Lawrence B. Durham

Masters Theses

Lake Charleston, Illinois was electrofished to determine the status of the largemouth bass (Micropterus salmoides, Lacepede) population after its reconstruction into a pump storage reservoir. The changes observed were an increased rate of growth of the initial year class, increased average growth increment of older bass, and a more abundant bass population. Factors which may have influenced increased growth were decreased turbidity, alkalinity, and increased water level. There is a possibility the increase in water level led to an increase in terrestrial invertebrates as a food source, and increased spawning substrate and cover due to submerged terrestrial vegetation. …


A Survey Of The Mussels (Pelecypoda: Unionoidia: Unionacea) Of Twelvepole Creek, West Virginia With A Study Of Commensal Algae Found On Selected Mussels, Kevin Joe Smith Jan 1981

A Survey Of The Mussels (Pelecypoda: Unionoidia: Unionacea) Of Twelvepole Creek, West Virginia With A Study Of Commensal Algae Found On Selected Mussels, Kevin Joe Smith

Theses, Dissertations and Capstones

A survey of the Unionacea of Twelvepole Creek, West Virginia was conducted coupled with a qualitative study of commensal algae found on selected mussel species. The naiads and the algae were found to have diverse populations. Naiads collected during the survey were represented by 23 species, 16 genera and 2 families. Corbicula fluminea was found to be confined largely to the main branch of Twelvepole, with no individuals being collected from the East or West Forks and only limited collections near the mouth of Beechfork Creek. Lampsilis radiata luteola and L. ventricosa were found to have the greatest distribution, being …


The Naiads (Mollusca: Unionidae) From Two Prehistoric Sites Along The Ohio River, Mason County, West Virginia, Beverly Dawn Spurlock Jan 1981

The Naiads (Mollusca: Unionidae) From Two Prehistoric Sites Along The Ohio River, Mason County, West Virginia, Beverly Dawn Spurlock

Theses, Dissertations and Capstones

Archeological naiad valves representing 29 species were recovered from two Late Prehistoric Indian villages along the Ohio River, Mason County, West Virginia. Surface collections and limited excavation provided a total of 1,599 identifiable valves and valve fragments. Dif­ferences in species compositions and relative abundances between the two middens were noted. Samples from the Rolf Lee Farm Site (46MS51) contained 28 species while the Lewis-Old Town Farm Site (46MS57) produced only 23 species. Comparisons were made with other nearby prehistoric shell deposits and also with more recent twentieth century collections from this reach of the river. Nine of the archeological species …


Analysis Of The Capture-Recapture Method Of Determining Fish Population Size In A Pond Community, Richard E. Hall Jan 1977

Analysis Of The Capture-Recapture Method Of Determining Fish Population Size In A Pond Community, Richard E. Hall

Masters Theses

No abstract provided.


Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher Jan 1970

Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher

Nebraska Game and Parks Commission: Staff Research Publications

Ecological studies on the distribution of fairy shrimps have been made from 246 sites in the sandhills region of Nebraska. New records for Nebraska have been established for Artemia salina, Branchinecta campestris, B. lindahli, B. mackini and Cyzicus mexicanus. Seasonal populations of shrimp have been located in habitats containing permanent fish populations. Water mineralization was the dominant environmental condition related to the distribution of phyllopods with sodium and potassium compounds predominating in the strongly alkaline lakes. Several of the Artemia lakes were classified as hydroxide sites. Many of the alkaline ponds, where B. lindahli and B. campestris flourish, are …


Logbook, U.S.S. Gannet, 1912-1913, George W. Greenleaf, United States Bureau Of Fisheries Jan 1912

Logbook, U.S.S. Gannet, 1912-1913, George W. Greenleaf, United States Bureau Of Fisheries

History of Maine Fisheries

Logbook of the U.S.S. Gannet, a research steam vessel commanded by Captain George W. Greenleaf for the United States Bureau of Fisheries hatchery located on McKown Point in Boothbay Harbor (Me.). The vessel was used by the hatchery in its efforts to preserve and increase fish stocks, including cod, haddock, polluck, flounder and lobsters. Records daily activities along the coast, including the number of seeders and eggs harvested and/or released, water temperatures, weather, and general maintenance of the vessel.