Abundance of macrocrustaceans in a natural marsh and a marsh altered by dredging, bulkheading, and filling.

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorTrent, L.E.en_US
dc.contributor.authorPullen, E.J.en_US
dc.contributor.authorProctor, R.en_US
dc.contributor.otherFishery Bulletinen_US
dc.date.accessioned2010-02-15T16:49:48Z
dc.date.available2010-02-15T16:49:48Z
dc.date.issued1976en_US
dc.degreeen_US
dc.descriptionp. 195-200.en_US
dc.description-otheren_US
dc.description.abstractIndices of abundance of macrocrustaceans during March-October 1969 in West Bay, Tex., were determined for day and night and statistically compared between 1) a natural marsh area, 2) upland and bayward canal areas of a housing development, and 3) an open bay area. Significance levels of 5% or 1% were used in the statistical comparisons. Catches of brown shrimp, Penaeus aztecus; white shrimp, Penaeus setiferus; blue crab, Callinectes sapidus; and pink shrimp, P. duorarum, were significantly greater at night than during the day at one or more stations in the marsh. More grass shrimp, Palaemonetes sp., were caught at night than during the day, but the differences were not statistically significant. Individuals of each species appeared to migrate into the more shallow areas of the marsh at night. At night, brown shrimp and blue crabs were significantly more abundant in the marsh and bayward canal areas than in the upland canal and bay areas, white shrimp were significantly more abundant in the marsh area than in the other three areas, and pink shrimp were significantly more abundant in the marsh than in the upland and bayward canal areas. During the day, brown shrimp were significantly more abundant in the bayward canal area than in the upland canal and bay areas, while pink shrimp were significantly more abundant in the marsh area than in the upland canal area. The generally lower catches of each species in the open bay and upland canal areas when compared with the marsh and bayward canal areas were attributed to: 1) permanent loss of intertidal vegetation in the housing development; 2) low abundance of detrital material and benthic macroinvertebrates in the open bay and upland canal areas; and 3) eutrophic conditions in the upland canal area.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeWest Bayen_US
dc.geo-codeGalveston Bayen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19113
dc.latitudeen_US
dc.locationTAMUG periodical collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries1367.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectmarine crustaceansen_US
dc.subjectpenaeid shrimpen_US
dc.subjectblue craben_US
dc.subjectCallinectes sapidusen_US
dc.subjectgrass shrimpen_US
dc.subjectPalaemonetes sp.en_US
dc.subjectabundanceen_US
dc.subjectdredgingen_US
dc.subjectenvironmental effectsen_US
dc.subjectmarshesen_US
dc.subjecthabitat improvementen_US
dc.titleAbundance of macrocrustaceans in a natural marsh and a marsh altered by dredging, bulkheading, and filling.en_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue74(1)en_US

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