Incorporating fish orientation into target strength-total length equations: Horizontal-Aspect target-Strength equations for gizzard shad Dorosoma cepedianum
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چکیده
منابع مشابه
Caloric needs of detritivorous gizzard shad Dorosoma cepedianum are met with sediment bacterial and algal biomass
The food source of sediment-ingesting animals is a subject of controversy, centering on the notion that the microbial biomass in sediments is insufficient to support caloric need. Gizzard shad Dorosoma cepedianum are omnivorous, sediment-ingesting fish that frequently impact the trophic structure of temperate lake and reservoir food webs. Prior gut content analyses of this fish have typically d...
متن کاملPiece Length Types on Fish Target Strength Model
Fish species can be identify using target strength (TS) model. The result of model compared with result from in situ measurement as benchmark. Selarboops (Oxeyescad) as commercial fish from South China Sea has been used. Lateral and dorsal X-ray of fish has been deployed to perform fish body and swim bladder morphology and then divided into a number of pieces for Kirchhoff-Ray Mode (KRM) model ...
متن کاملPigmented Skin Tumors in Gizzard Shad (dorosoma Cepedianum) from the South-central United States: Range Extension and Further Etiological Studies
Previous studies reported skin tumors diagnosed as pigmented subcutaneous spindle-cell neoplasms in 22% of gizzard shad (Dorosoma cepedianum) from Lake of the Arbuckles, Oklahoma, USA. Those studies could not confirm chemical carcinogens or retroviruses as etiological agents. The present study reports the neoplasms in 20% of shad from two additional lakes, Lake Murray and Lake Texoma in south-c...
متن کاملNutritional Quality of Foods Consumed by Gizzard Shad in Western Lake Erie
Gizzard shad (Dorosoma cepedianum) were collected from four locations in western Lake Erie during summer, 1982. The nutritional quality of foods ingested by these fish was examined. Small (<60 mm standard length), age 0 fish consumed mostly zooplankton with high organic (>80% of dry weight) and nitrogen (>6% of dry weight) contents. The phytoplankton and detritus diets of larger, age 0 and adul...
متن کاملFactors influencing mercury accumulation in three species of forage fish from Caddo Lake, Texas, USA.
Most studies that have examined mercury (Hg) contamination of fish have focused on game species feeding near the top of the food web, while studies that examine forage fish that feed near the base of the food web are rare. We conducted a survey of Hg contamination in three species of forage fish, brook silverside (Labidesthes sicculus), threadfin shad (Dorosoma petenense) and gizzard shad (Doro...
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ژورنال
عنوان ژورنال: Fisheries Research
سال: 2019
ISSN: 0165-7836
DOI: 10.1016/j.fishres.2019.05.009