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Fisheries Report No 69 - The Western Rock Lobster Fishery 1979 - 1980, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 10 724 tons in 1979/80, out of a total Australian catch of rock lobster of 14 739 tons. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both …

Fisheries Report No 72 - The Western Rock Lobster Fishery 1980 - 1981, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 9 957 tonnes in 1980/81, out of a total Australian catch of rock lobster of 15 565 tonnes. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery …

Fisheries Report No 70 - The Western Rock Lobster Fishery 1982 - 1983, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced a record 12 416 tons in 1982/83, out of a total Australian rock lobster catch of 18 192 tons. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the …

Fisheries Report No 68 - The Commercial Fishery For Barramundi (Lates Calcarifer) In Western Australia, Dr N. Morrissy

Fisheries Research Reports

Commercial catch and effort data from the Western Australian fishery for barramundi, Lates calcarifer, over eight years to 1982-83 were analysed. Major stocks and areas of this fishery are Cambridge Gulf (Ord River, port of Wyndham), Kimberley coast, King Sound and Broome coast (Fitzroy River, ports of Derby and Broome), and Pilbara coast (ports of Port Hedland, Roebourne and Onslow) where the Ashburton River is the southern limit to the distribution of barramundi on the west coast. As elsewhere, barramundi stocks are associated with river systems. The Low annual catch of about 30 tonnes appears to be due to the …

A Proposal To Fertilize The Overton Arm And Gregg Basin Areas Of Lake Mead, Larry J. Paulson

Publications (WR)

Several limnological studies have been conducted in Lake Mead during the past decade. The recent studies clearly show that most of Lake Mead is deficient in nutrients, especially phosphorus, and very low in productivity. The reservoir-wide average total phosphorus concentration for 1981 - 1982 was only 9 mg/m³. This is below levels found In most oligotrophic lakes and reservoirs. Algal biomass, as measured by chlorophyll-a, averaged only 1.5 mg/m³. That also places Lake Mead in the oligotrophic range. Transparency, as measured by a Secchi disc, averaged 9-5 m in Lake Mead during 1981-1982. That far exceeds …

Fisheries Report No 66 - The Fishery For Perth Herring, Nematalosa Vlaminghi (Munro), C F. Chubb, N. G. Hall, R C.J. Lenanton, I. C. Potter

Fisheries Research Reports

Perth herring fishery over the last 30 years have been examined. While there are pockets of catches between Broome and Bunbury, those from the Swan Estuary and nearby inshore marine waters make by far the most important contribution to the fishery. In the Swan Estuary, the catches started rising in the 1950s in response to a demand by the rock lobster industry for bait and reached peak values in the late 1960s and early 1970s. Data are provided which demonstrate that catch per boat is a good index of catch per unit effort (CPUE) in the period since 1967 when …

Fisheries Report No 63 - Assessment Of Artificial Feeds For Battery Culture Of A Freshwater Crayfish, Marron (Cherax Tenuimanus) (Decapoda: Parastacidae), Dr N. Morrissy

Fisheries Research Reports

Performance of juvenile crayfish, 0.1-5 g, on a variety of commercial crustacean feeds was tested under conditions of individual housing ("battery culture"), where sources of additional feed were minimized (detritus), or eliminated (cannibalism) Survival was close, or equal, to 100% over 50 day test periods, a reflection of optimal battery conditions rather than feeding, since survival over 100 days for an unfed (control} group was also 100%. No ecdysiad mortality, or trauma, occurred with crayfish, up to 10g, in compartments of area 75 cm. Growth performance in tests was rated by separate ratios for ecdysial increment and frequency, relative to …

Fisheries Report No 64 - The Western Rock Lobster Fishery 1977 - 1978, R. S. Brown, E H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably …

Fisheries Report No 67 - The Western Rock Lobster Fishery 1978 - 1979, R. S. Brown, E H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced a record 11 388 tons in 1978/79, out of a total Australian catch of rock lobster of 15 400 tons. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of …

Fisheries Report No 62 - The Commercial Fisheries Of Temperate Western Australian Estuaries: Early Settlement To 1975, R C.J. Lenanton

Fisheries Research Reports

This report provides a quantitative description of the commercial estuarine fisheries of temperate Western Australia. An account is given of the Long series of historical events which influenced the development of the fisheries and led to their current status. All available catch and effort data covering the years 1898 - 1975 are presented. The use of this long series of historical catch and effort data as an aid to the management of the estuarine fisheries resources is discussed. It is emphasised that interpretations of these data cannot be undertaken effectively without a knowledge of factors such as Life history strategies, …

Use Of Hydroelectric Dams To Control Evaporation And Salinity In The Colorado River System, Larry J. Paulson

Publications (WR)

The main stem reservoirs on the Colorado River comprise one of the largest and most heavily used freshwater bodies in the nation. These reservoirs (Lake Powell, Lake Mead, Lake Mohave and Lake Havasu) can store up to 53,590,400 acre-feet of water at their maximum capacities. Nonetheless, local water shortages still exist in some areas of the Colorado River Basin. There is also concern that salt concentrations are approaching levels that could severely affect municipal and agricultural uses. Water shortages will become even more acute as demands for water increase with continued urban and agricultural development in the basin. Water conservation …

Historical Patterns Of Phytoplankton Productivity In Lake Mead, Richard T. Prentki, Larry J. Paulson

Publications (WR)

Lake Mead was impounded in 1935 by the construction of Hoover Dam. The Colorado River was unregulated prior to then and therefore was subjected to extreme variations in flows and suspended sediment loads. Hoover Dam stabilized flows and reduced suspended sediment loads downstream, but Lake Mead still received silt-laden inflows from the upper Colorado River Basin. The Colorado River contributed 97% of the suspended sediment inputs to Lake Mead, and up to 140 x 1O⁶ metric tons (t) entered the reservoir in years of high runoff. Most of the sediments were deposited in the river channel and formed an …

The Sale, Lease Or Exchange Of Indian Water Rights For Energy Development, Thomas W. Fredericks

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

34 pages.

Contains references.

Weather Resources Management And Interbasin Transfer Law [Outline], Ray Jay Davis

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

21 pages (includes illustrations).

Water Problems & Issues Affecting United States-Mexico Relations: Policy Options & Alternatives, Albert E. Utton

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

42 pages.

Contains 6 pages of endnotes.

The California State Water Project, Jerry Meral

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

27 pages.

A Case Study: The Yellowstone River, Donald Mcintyre

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

106 pages (includes maps).

Contains 15 appendices.

A Case Study Of The Windy Gap Project [Outline], John M. Sayre

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

7 pages.

The Metropolitan Water District Of Southern California [Outline], Carl Boronkay

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

4 pages.

New York City’S Battles For Imported Water, J. Kevin Healy

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

16 pages (includes illustrations and maps).

The Central Arizona Project, Jon Kyl

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

38 pages (includes illustrations).

Contains footnotes.

Contains 9 attachments.

Water Development For Coal Pipelines: The Etsi Story, Wesley M. Witten

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

8 pages (includes 1 map).

Constitutional Restraints On Protecting State Interests In Water Rights, Charles E. Corker

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

33 pages.

Contains references.

El Paso/New Mexico Controversy [Outline], John P. Frank

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

3 pages.

The Sporhase Case, Dennis Montgomery

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

35 pages.

Contains references.

Contains 5 appendices.

A Downstream Perspective On South Dakota’S Purported Sale Of Water To Etsi, Norman W. Thorson

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

29 pages (includes 2 maps).

Contains 13 attachments.

South Dakota And The Etsi Experience, William J. Janklow

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

23 pages.

Interstate Water Compacts, John A. Carver

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

33 pages.

Contains references.

Federal Reserved Rights Claims For Uses On Out-Of-Basin Lands [Outline], Richard B. Collins

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

3 pages.

Extent And Limits Of Federal Power [Outline], George A. Gould

New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)

3 pages.