Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 14 of 14

Full-Text Articles in Life Sciences

Osmophores, Floral Features, And Systematics Of Stanhopea (Orchidaceae), Kenneth J. Curry, Lorraine M. Mcdowell, Walter S. Judd, William Louis Stern May 1991

Osmophores, Floral Features, And Systematics Of Stanhopea (Orchidaceae), Kenneth J. Curry, Lorraine M. Mcdowell, Walter S. Judd, William Louis Stern

Faculty Publications

The floral fragrance glands (osmophores) of 18 species of Stanhopea and Sievekingia were examined through a series of developmental studies at light and electron microscope levels including late bud stages through postanthesis. Various characters were identified to be of potential systematic value and were recorded for each species. These characters included: texture of the osmophore surface, number of distinct cell layers comprising the osmophore, nature of lipid inclusions in osmophore cells, and presence or absence of plastoglobuli in osmophore amyloplasts. These characters were combined with traditional features of floral lip morphology for cladistic analysis. Sievekingia was the postulated outgroup. Stanhopea …


Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies. Iii. Records Of Marine Isopoda From Pine Cay, Fort George Cay, Water Cay, And Adjacent Waters, Marilyn Schotte, Richard W. Heard, Brian Kensley Jan 1991

Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies. Iii. Records Of Marine Isopoda From Pine Cay, Fort George Cay, Water Cay, And Adjacent Waters, Marilyn Schotte, Richard W. Heard, Brian Kensley

Gulf and Caribbean Research

Between April 1987 and April 1990, 45 species of marine isopods were collected from intertidal and subtidal habitats in the vicinity of Pine Cay, Turks and Caicos, British West Indies. Five species, Licranthura tuberculata, Mesanthura spongicola, Califanthura minuta, Stenetrium caicoensis, and Armadilloniscus stepus, are known currently only from the northeastern Turks and Caicos Islands. The Turks and Caicos collections represent considerable range extensions for many of the species collected. Four species, Apanthura cracenta, Mesanthura punctillata, Carpias triton, and Munna petronastes, known previously from the east coast of Central America (Belize), are …


Design And Operation Of A Small Tank System For Ovarian Maturation And Spawning Of Penaeus Vannamei, John T. Ogle Jan 1991

Design And Operation Of A Small Tank System For Ovarian Maturation And Spawning Of Penaeus Vannamei, John T. Ogle

Gulf and Caribbean Research

Ovarian maturation and spawning of Penaeus vannamei was accomplished in a 120 l (30 gal) tank as well as in a 800 l recirculating system consisting of six aquaria plumbed into a common biofilter. Pond reared animals stocked one per tank were fed a diet consisting of commercial pellets, squid, and bloodworms. Temperature was maintained at 28oC and salinity between 28 and 32 ppt. Presence of black shields between aquaria, males, eggs in the water, and other females in the aquaria were not required for ovarian maturation. Thirty-six of 78 females held in the small talk system spawned. …


A Method To Construct Low-Cost Ponds For Aquaculture, John T. Ogle Jan 1991

A Method To Construct Low-Cost Ponds For Aquaculture, John T. Ogle

Gulf and Caribbean Research

A 100 m2 pond was constructed using a vinyl liner supported by hog wire panels shackled together in a circle. The construction was completed in one afternoon at a total cost of $612.00.


Haustorius Jayneae, A New Species Of Haustoriid Amphipod From The Northern Gulf Of Mexico, With Notes On Its Ecology At Panama City Beach, Florida U.S.A., John M. Foster, Sara E. Lecroy Jan 1991

Haustorius Jayneae, A New Species Of Haustoriid Amphipod From The Northern Gulf Of Mexico, With Notes On Its Ecology At Panama City Beach, Florida U.S.A., John M. Foster, Sara E. Lecroy

Gulf and Caribbean Research

A new species of sand-burrowing amphipod, Haustorius jayneae, is described from the swash zone and shallow subtidal sands along the north Florida and Mississippi Gulf coasts. It is most similar to H. canadensis from the American Atlantic coast, differing primarily in the presence of a distinct anterodistal spinous lobe on pereopod 6, article 5; a longer row of distal marginal spines on pereopod 7, article 4; and fewer proximal spines on the peduncle of uropod 1. A revised key to the known species of Haustorius is included and information on the ecology of H. jayneae n. sp. at Panama …


Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies I. Four New Marine Isopod Crustaceans From The Vicinity Of Pine Cay, Brian Kensley, Richard W. Heard Jan 1991

Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies I. Four New Marine Isopod Crustaceans From The Vicinity Of Pine Cay, Brian Kensley, Richard W. Heard

Gulf and Caribbean Research

Four undescribed species of shallow-water marine isopods were recently collected in the vicinity of Pine Cay in the western Caicos Islands. These are described and include the anthurid Licranthura tuberculata, possessing a tuberculate third article of the antenna and a rounded distolateral angle of the uropodal exopod; the anthurid Mesanthura spongicoia, which has a distinctive color pattern, distinctly attenuated body, and 5-7 spines on the third article of the mandibular palp; The paranthurid Califanthura minuta, a tiny (1.6 mm) species having a reduced, triangular uropodal exopod; and the stenetriid asellote Stenetrium caicosensis, which has a pronounced …


Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies. Ii. Armadilloniscus Steptus, N. Sp. (Isopoda: Oniscidea: Scyphacidae) From Pine Cay, Marilyn Schotte, Richard W. Heard Jan 1991

Studies On The Crustacea Of The Turks And Caicos Islands, British West Indies. Ii. Armadilloniscus Steptus, N. Sp. (Isopoda: Oniscidea: Scyphacidae) From Pine Cay, Marilyn Schotte, Richard W. Heard

Gulf and Caribbean Research

Armadilloniscus steptus, n. sp., the second species of this genus from the Caribbean Sea, is described and distinguished from the other five species from the New World. The new species, collected from the upper intertidal zone on Pine Cay, Turks and Caicos Islands, differs from A. coronacapitalis, A. ellipticus, A. holmesi, A. lindahli, and A. ninae by the greater degree of tuberculation of the integument, smaller size at maturity, and sexual dimorphism in the structure of the pleon.


Maturation Of Penaeus Vannamei Based Upon A Survey, John T. Ogle Jan 1991

Maturation Of Penaeus Vannamei Based Upon A Survey, John T. Ogle

Gulf and Caribbean Research

Captive maturation and reproduction of Penaeus vannamei, a popularly cultured penaeid shrimp, was first achieved in 1977. Based upon interviews of 18 facility managers, average conditions are as follows: tank diameter of 4.6 m (15 ft), 100% water exchange with recirculation, temperature 27-29°C. salinity 28-32 ppt, and a photoperiod of 13-14 hours of light. Broodstock are predominately wild, undergo unilateral eyestalk ablation by enuculation, and are stocked at five per square meter with a 1:1 sex ratio. Penaeus vannamei at most facilities are fed squid, pellets and bloodworms four times daily and 3-7% of the females are found to …


Success Of Juvenile Striped Bass In Two Bay Systems In Mississippi: 1980-1984, Ronald R. Lukens, Larry C. Nicholson, J.Y. Christmas Jan 1991

Success Of Juvenile Striped Bass In Two Bay Systems In Mississippi: 1980-1984, Ronald R. Lukens, Larry C. Nicholson, J.Y. Christmas

Gulf and Caribbean Research

Success of a striped bass (Morone saxatilis, Walbaum) stocking program in the Biloxi Bay and St. Louis Bay systems in Mississippi was investigated by monitoring the occurrence of juveniles in bag seine collections in the Biloxi, Tchouticabouffa, Jourdan, and Wolf Rivers. A total of 554 juvenile striped bass were collected during the study. Hydrographic data and stomach analyses indicate that neither water conditions nor food was a limiting factor to juvenile striped bass survival. Appearance of juveniles subsequent to the stocking of Atlantic coast fry and fingerlings coupled with lateral line scale count data indicate that all juveniles …


Notes On Some Chaetognaths From Pine Cay, Turks And Caicos Islands (British West Indies), Jerry A. Mclelland, Richard W. Heard Jan 1991

Notes On Some Chaetognaths From Pine Cay, Turks And Caicos Islands (British West Indies), Jerry A. Mclelland, Richard W. Heard

Gulf and Caribbean Research

Seven species of planktonic Chaetognatha - Ferosagitta hispida, Flaccisagitta enflata, F. hexaptera, Krohnitta pacifica, Sagitta bipunctata, Serratosagitta serratodentata, and Pterosagitta draco - were present in plankton samples collected in waters north of Pine Cay, Turks and Caicos Islands, British West Indies. In addition, the epibenthic species Spadella cephaloptera, Paraspadella nana, and P. schizoptera were present, the latter two species associated mainly with shallow clumps of the coralline alga, Neogoniolithon sp., and with sponge-algal communities. One specimen of S. cephaloptera was collected at 35 m from a sand bottom north of the fringing …


New Sandhoppers (Crustacea: Amphipoda) From The Gulf Coast Of The United States, E.L. Bousfield Jan 1991

New Sandhoppers (Crustacea: Amphipoda) From The Gulf Coast Of The United States, E.L. Bousfield

Gulf and Caribbean Research

Three species of sand-burrowing semi-terrestrial amphipod crustaceans are newly described from sandy beaches of the North American coast of the Gulf of Mexico. They (and two related species from the open Atlantic coast of North America) are removed from the genus Talorchestia Dana 1853, and placed in a new genus, Americorchestia. Americorchestia salomani, new species, and A. heardi, new species, occur from northwestern Florida to the Mississippi Delta. They are morphological counterparts of the well-known sandhoppers from the open Atlantic coast, A. megalophthalma (Bate) and A. longicornis (Say) respectively. Americorchestia barbarae, new species, related to A. …


Six New Genera In The Chaetognath Family Sagittidae, Robert Bieri Jan 1991

Six New Genera In The Chaetognath Family Sagittidae, Robert Bieri

Gulf and Caribbean Research

The following six new genera of Sagittidae, with type species listed in parentheses, are proposed: Adhesisagitta (Sagitta hispida Conant, 1985), Demisagitta (Sagitta demipenna Tokioka and Pathansali, 1963), Decipisagitta (Sagitta decipiens Fowler, 1905), Tenuisagitta (Sagitta tenuis Conant, 1986), Abacisagitta (Sagitta pulchra Doncaster, 1903), Oculosagitta (Sagitta megalophthalma Dallot and Ducret, 1969).


Food Preference Of Penaeus Vannamei, John T. Ogle, Kathy Beaugez Jan 1991

Food Preference Of Penaeus Vannamei, John T. Ogle, Kathy Beaugez

Gulf and Caribbean Research

The preference of Penaeus vannamei for 15 food items used in maturation was determined. The foods in order of preference were ranked as follows: Artemia, krill, Maine bloodworms, oysters, sandworms, anchovies, Panama bloodworms, Nippai maturation pellets, Shigueno maturation pellets, conch, squid, Salmon-Frippak maturation pellets, Rangen maturation pellets and Argent maturation pellets.


Pattern And Coloration Of Periclimenes Rathbunae From The Turks And Caicos Islands, With Comments On Host Associations In Other Anemone Shrimps Of The West Indies And Bermuda, Stephen Spotte, Richard W. Heard, Patricia M. Bubucis, Roy R. Manstan, Jerry A. Mclelland Jan 1991

Pattern And Coloration Of Periclimenes Rathbunae From The Turks And Caicos Islands, With Comments On Host Associations In Other Anemone Shrimps Of The West Indies And Bermuda, Stephen Spotte, Richard W. Heard, Patricia M. Bubucis, Roy R. Manstan, Jerry A. Mclelland

Gulf and Caribbean Research

The commensal shrimp Periclimenes rathbunae Schmitt, 1924, lives in association with the sea anemones Condylactis gigantea Weinland, 1860, and Stichodactyla (= Stoichactis) helianthus Ellis, 1767, in the Turks and Caicos Islands, British West Indies. We describe its pattem and coloration in life. Published reports of distribution and host acceptance by P. rathbunae and three of its congeners (P. anthophilus Holthuis and Eibl-Eibesfeldt, 1964; P. pedersoni Chace, 1958; and P. yucatanicus Ives, 1891) are reviewed. The last two species are recorded for the first time from the Turks and Caicos, and the association of P. yucatanicus with Stichodactyla helianthus …