Life Sciences Commons^™

The Occurrence Of The Remarkable Scyphozoan, Deepstaria Enigmatica, In The Gulf Of Mexico And Some Observations On Cnidarian Symbionts, Philip J. Phillips

Gulf and Caribbean Research

On 8 July 1965 one damaged specimen of the remarkable scyphozoan, Deepstaria enigmatica Russell 1967, was taken in the course of a sampling program conducted by the Department of Oceanography, Texas A&M University in a ten-foot Issacs-Kidd midwater trawl in the Yucatan Basin. The trawl was put into water at Lat. 19" 58' N, Long. 85" 14' W. This is the first report of Deepstaria in the Atlantic region. This medusa is otherwise known only from the Pacific Ocean where it has been captured by slurp gun from the submersible Deepstar over the San Diego Trench and has been taken …

Protozoan Symbionts From The Anemone Bunodosoma Cavernata From Galveston Island, Texas, Philip J. Phillips

Gulf and Caribbean Research

The anemone Bunodosoma cavernata is a common inhabitant of the Texas coast and cursory observation revealed a large complement of protozoan associates. These included Saprodinium, Euplotes, Paraeuplotes, Vorticella, Cohnilembus, Anophrys, Uronema and Vahlkampfia.

Approximately forty anemones were collected from jetty rocks on Galveston Island on 3 November 1970. Note was made within one day of protozoans found on the external surfaces, in the coelenteron and in surrounding sea water. The anemones were kept until 7 December 1970 under varying conditions and bi-weekly note was made of the associated protozoan fauna.

Effect Of Holothurin On Sarcoma 180 And B-16 Melanoma Tumors In Mice, S.D. Cairns, C.A. Olmstead

Gulf and Caribbean Research

Holothurin, a biotoxic principle from the Cuvierian glands of the Bahamian sea-cucumber, Actinopyga agassizi, was studied as an anti-tumor agent capable of retarding tumor growth and prolonging the life of tumor-bearing mice. White Swiss mice injected with Sarcoma 180 had a mean survival time of 18.1 days with an average weight gain representing tumor and ascites fluid accumulation amounting to 25.1 grams in 15 days. Of five white Swiss mice with Sarcoma 180 receiving 0.15 mg Holothurin every other day, one was alive at 57 days and the average weight gain of the group was 10.4 grams in 15 …

Nutritional Components Of The Standing Plankton Crop In Mississippi Sound, Mohammed Saeed Mulkana, Walter Abbott

Gulf and Caribbean Research

A study on seasonal changes in the nutritional components of standing plankton biomass was made from 20 April 1965 to 6 September 1966. Plankton were separated into net plankton and nannoplankton fractions. Nannoplankton3 standing biomass exceeded by 72 times that of net plankton.

Although protein and carbohydrate levels were higher in net plankton on a unit weight basis, total nutrients available from nannoplankton were substantially higher. Some seasonal trends were apparent as changes in the standing biomass in net plankton. Nannoplankton exhibited no seasonal trends. Lipid and caloric values of net plankton showed seasonal trends similar to those shown by …

Studies On The Toxicity Of Mirex To The Estuarine Grass Shrimp, Palaemonetes Pugio, Greg Redmann

Gulf and Caribbean Research

Estuarine grass shrimp (Palaemonetes) are common along the Gulf and Atlantic coasts (Faxon 1879, Gunter 1950, Williams 1965, Fleming 1967). These small decapods are found ranging through freshwater areas, brackish estuaries and into inshore saline waters where they are occasionally the predominant animal (Gunter 1950).

In view of the trophic significance of these shrimp, static system bioassays were made to determine the sensitivity of Palaemonetes pugio to Mirex in water and to 0.15% Mirex bait granules, since the USDA is continuing the fire ant control program but has plans in the future to substitute 0.15% Mirex bait for …

A Study On The Growth Rate Of Brown Shrimp (Penaeus Aztecus Aztecus Ives, 1891) From The Coasts Of Veracruz And Tamaulipas, Mexico, Ernesto A. Chávez

Gulf and Caribbean Research

The present study was undertaken with the purpose of getting the proper basis for exploiting brown shrimp resources in a rational manner, by introducing control regulations of fishing activities. The growth rate models are necessary for the other parameters of population dynamics of the stocks of this species, whose annual catch, Osborn, Maghan and Drummond (1969), averages 54 million pounds of tail weight, representing 52% of the total shrimp caught in the Gulf of Mexico. This shows that Penaeus aztecus aztecus is the most important of shrimp species exploited in this region. Nevertheless, the brown shrimp is the least well …

Stranding Records Of A Finback Whale, Balaenoptera Physalus, From Mississippi And The Goose-Beaked Whale, Ziphius Cavirostris, From Louisiana, Gordon Gunter, J.Y. Christmas

Gulf and Caribbean Research

Stranding records are sometimes the only source of data concerning some species of cetaceans and it is appropriate that these incidents be reported in some detail. This is particularly true of rare or little known species. Bottle-nosed dolphin (Tursiops truncatus) carcasses stranded on the Mississippi and Louisiana coasts are so common that they receive little attention. Other species occur and have, no doubt, been overlooked or confused by laymen with Tursiops. Even the rare stranding of large whales in this area may go unreported except for news stories that fail to identify the animal properly and which …

A Quarter Century Of Geology At The Gulf Coast Research Laboratory (1948-1973), Ervin G. Otvos Jr.

Gulf and Caribbean Research

Overview of the history of geology courses and research at the Gulf Coast Research Laboratory in Ocean Springs, Mississippi.

Some Analyses Of Twentieth Century Landing Statistics Of Marine Shrimp Of The South Atlantic And Gulf States Of The United States, Gordon Gunter, Katherine Mcgraw

Gulf and Caribbean Research

There is a strong correlation between the total catch of white and brown shrimp with dockside prices on the United States Gulf Coast since 1902, but there is no significant correlation between South Atlantic production and prices, probably because the South Atlantic shrimp stocks have been over-fished since the 1920s. There is no negative or positive correlation between the catch statistics of brown and white shrimp of the United States, and these species seem to be weakly competitive, if at all. There is a significant correlation between the annual production of South Atlantic and Gulf white shrimp, but there is …

A Geochemical Study Of A Marsh Environment, Thomas F. Lytle, Julia Sever Lytle, Patrick L. Parker

Gulf and Caribbean Research

The goal of this study was twofold: 1) chemically to characterize a specific salt marsh, the sediments and associated biota and 2) to establish clear relationships between the chemical substances residing in the sediments and similar or identical substances occurring in the biological specimens. In this particular study it was felt that the hydrocarbons would yield the most significant organic geochemical information. These compounds are ubiquitous but minor components of all organisms. Though their function is not entirely understood, it is known that they are concentrated in the waxy coatings of plants and most likely aid in the protective mechanisms …

An Examination Of Legislation For The Protection Of The Wetlands Of The Atlantic And Gulf Coast States, Anthony J. Haueisen

Gulf and Caribbean Research

The most useful aquatic areas in the world are in serious danger of destruction. The estuaries, where fresh water, land and sea meet in a dynamic and highly productive zone, are today gravely threatened through unwise and unplanned excessive use of their valuable but finite capacities. Estuaries include the coastal zone which is affected by both the run-off of fresh water from the land and the salt water from the sea. This zone includes tidal rivers, marshes, bays and river mouths. The value of these estuarine regions has been well established by biologists. However, this value is fully appreciated by …

Some Effects Of Hurricanes On The Terrestrial Biota, With Special Reference To Camille (Reprint), Gordon Gunter, Lionel N. Eleuterius

Gulf and Caribbean Research

This is a verbatim reprinting of the paper with the same title published in Volume 3, Number 2 of this journal, which was so improperly laid out that reprints with the plates could not be made and the legends were missing.