Browsing by Author "Murray, F. A."
Now showing 1 - 4 of 4
- Results Per Page
- Sort Options
Item Populations of Juvenile Shrimp in the Matagorda Bay Complex - Study of Juvenile Shrimp Populations(Texas Game and Fish Commission Marine Laboratory, 1963) Murray, F. A.; Moffett, A. W.The first signs of 1962 year-class brown shrimp were found in mid-April. This group was followed by a second wave in July and a third in August. A few whites were taken in June, however, the first major wave occurred in July. This was followed by a second wave in October. Trawl data indicates a sharp population drop (for both species) beginning in August.Item Populations Studies of the Sports and Commercial Fin-fish and Forage Species of the Matagorda Bay System - Analysis of Populations of Sports and Commercial Fin-fish and Factors which Affect these Populations in the Coastal Bays of Texas(Texas Game and Fish Commission Marine Laboratory, 1963) Moffett, A. W.; Murray, F. A.Following the winter freeze of 1962 fish catches were at a low level. Tag returns suggest little redfish and drum movement.Item Study of Oyster Growth and Population Structure of the Public Reefs in Matagorda, Tres Palacios and East Matagorda Bays - Survey of Oyster Populations and Associated Organisms(Texas Game and Fish Commission Marine Laboratory, 1963) Moffett, A. W.; Murray, F. A.Monthly growth increments of oysters were estimated at 2.8 mm for the 1962 year-class and 3.3 mm for the 1961 class. The largest oyster concentrations appear to be in Tres Palacios Bay. Heavy spat setting occurred on Gadwall Reef and Sand Point Reef.Item Study of Populations of Juvenile Shrimp in the Matagorda Bay Area - Study of Juvenile Shrimp Populations(Texas Parks and Wildlife Department, 1965) Murray, F. A.Commercial shrimp bay landings for Matagorda and Lavaca Bays are dicussed. Seasonal occurrence and abundance of brown and white shrimp are presented for the Matagorda Bay area, March - December, 1963. The first wave of postlarval and early juvenile stages of brown shrimp (P. aztecus) appeared in the nursery areas in early April. Two waves were detected later in May and June. The largest sample sizes of white shrimp (P. setiferus) were collected in August followed by a second wave of greater magnitude in November. The samples reflect a pronounced population dropoff in September for both species.