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Evaluating methods for estimating rare events with zero-heavy data: a simulation model estimating sea turtle bycatch in the pelagic longline fishery
(National Marine Fisheries Service Scientific Publication Office, 2012-07)
Estimating rare events from zero-heavy data (data with many zero values) is a common challenge in fisheries science and ecology. For example, loggerhead sea turtles (Caretta caretta) and leatherback sea turtles (Dermochelys ...
Effects of a simulated fishing moratorium on the stock assessment of red porgy (Pagrus pagrus)
(National Marine Fisheries Service Scientific Publication Office, 2006-10)
Much of the information available on the population status of a harvested fish species is obtained from landings data. When fishing restrictions are in place, fishery-dependent data are reduced and assessments rely more ...
Abundance of horseshoe crabs (Limulus polyphemus) in the Delaware Bay area
(National Marine Fisheries Service Scientific Publication Office, 2003-10)
Discusses a study on horseshoe crabs in the vicinity of Delaware Bay. Abundance of horseshoe crabs in the area; Factor that influenced horseshoe crab catchability; Mean abundance estimate for all crabs.
Prosomal-width-to-weight relationships in American horseshoe crabs (Limulus polyphemus): examining conversion factors used to estimate landings
(National Marine Fisheries Service Scientific Publication Office, 2009-04)
Horseshoe crabs (Limulus polyphemus) are valued by many stakeholders, including the commercial fishing industry, biomedical companies, and environmental interest groups. We designed a study to test the accuracy of the ...
Potential causes of mortality for horseshoe crabs (Limulus polyphemus) during the biomedical bleeding process
(National Marine Fisheries Service Scientific Publication Office, 2006-04)
Biomedical companies catch and bleed horseshoe crabs for the production of Limulus amebocyte lysate (LAL), a product used for protecting public health (Berkson and Shuster, 1999). LAL is a clotting agent, derived solely ...
A model for assessing the likelihood of self-sustaining populations resulting from commercial production of triploid Suminoe oysters (Crassostrea ariakensis) in Chesapeake Bay
(National Marine Fisheries Service Scientific Publication Office, 2003-10)
Culture of a non-native species, such as the Suminoe oyster (Crassostrea ariakensis), could offset the harvest of the declining native eastern oyster (Crassostrea virginica) fishery in Chesapeake Bay. Because of possible ...
Effects of blood extraction on horseshoe crabs (Limulus polyphemus)
(National Marine Fisheries Service Scientific Publication Office, 2003-04)