Identification of a nursery area for the critically endangered hammerhead shark (Sphyrna lewini) amid intense fisheries in the southern Gulf of Mexico.

  title={Identification of a nursery area for the critically endangered hammerhead shark (Sphyrna lewini) amid intense fisheries in the southern Gulf of Mexico.},
  author={Gabriela Alejandra Cuevas-G{\'o}mez and Juan Carlos P{\'e}rez-Jim{\'e}nez and Iv{\'a}n M{\'e}ndez-Loeza and Maribel Carrera-Fern{\'a}ndez and Jos{\'e} Leonardo Castillo-Geniz},
  journal={Journal of fish biology},
Since the 1980s, there has been growing concern in the Mexican Atlantic regarding high catches of neonate and juvenile sharks in small-scale fisheries. Fishery-dependent data from 1993-1994 and 2007-2017 and fishers´ ecological knowledge from 2017 were used to identify nursery areas for scalloped hammerhead, Sphyrna lewini, in the southern Gulf of Mexico. Catch records and fishing areas of neonates, young of the year (YOYs), juveniles and adults of S. lewini (N = 1885) were obtained from… Expand
2 Citations
Potential distribution of critically endangered hammerhead sharks and overlap with the small-scale fishing fleet in the southern Gulf of Mexico
Abstract Understanding the degree to which fishing operations overlap with the distribution of exploited populations is essential for population assessments and in the formulation of managementExpand
Fishers’ ecological knowledge on the reproduction of fish and shrimp in a subtropical coastal ecosystem
Fishers showed a detailed ecological knowledge about some reproductive aspects, including size at first maturity of females, site of occurrence and reproductive peaks, and these results can be applied to improve fisheries management in the context of data poor fisheries. Expand


The Mexican artisanal shark fishery in the Gulf of Mexico: towards a regulated fishery
The high proportion of neonate and juvenile sharks in gill-net catches from shallow coastal waters suggests that the main shark nursery areas are under heavy fishing pressure and the Mexican National Fisheries Institute recommends a number of precautionary actions to avoid the collapse of this fishery. Expand
Historical records reveal potential extirpation of four hammerhead sharks (Sphyrna spp.) in Mexican Pacific waters
It appears that S. mokarran and S. tiburo might have been extirpated from the Gulf of California, and Sphyrna corona should be reassessed as Endangered or Critically Endangered, because it is endemic to the Eastern Pacific and recent records have been obtained only from Colombian waters. Expand
Age and growth of the scalloped hammerhead shark, Sphyrna lewini, in the north-west Atlantic Ocean and Gulf of Mexico
Growth estimates suggest slower growth than populations in the Pacific Ocean but faster growth than previously reported in the Gulf of Mexico, and Bowker’s test of symmetry and Index of Average Per Cent Error suggests that the ageing method represents a non-biased and precise approach to the age assessment. Expand
Identification and Characterization of Shark Nursery Grounds along the Mississippi and Alabama Gulf Coasts
A survey of shark nursery grounds in the northern Gulf of Mexico to identify shark pupping/nursery grounds, determine their extent, and characterize the environmental conditions prevalent found that young of the year of the three most common species were significantly, positively associated. Expand
Status of shark resources in the southern Gulf of Mexico and Caribbean: implications for management
Abstract This paper reviews current knowledge on shark biology, ecology, and fisheries in Mexican waters of the Gulf of Mexico, focusing on management implications. Original and literature data areExpand
The small-scale shark fisheries in the southern Gulf of Mexico: Understanding their heterogeneity to improve their management
Abstract Fisheries targeting sharks in the southern Gulf of Mexico are generally restricted to a few months or fish in several months but participate in other fisheries. Sharks are also part of theExpand
Diet and Diel Feeding Periodicity of Juvenile Scalloped Hammerhead Sharks, Sphyrna lewini, in Kāne'ohe Bay, Ō'ahu, Hawai'i
  • A. Bush
  • Biology
  • Environmental Biology of Fishes
  • 2004
Analysis of stage of digestion data and the frequency of occurrence of empty stomachs indicated that sharks fed more at night than during the day, and season and year had significant effects on the amount of food in sharks' stomachs, but sex and proximity to the patch reef did not. Expand
The life histories of endangered hammerhead sharks (Carcharhiniformes, Sphyrnidae) from the east coast of Australia.
The life histories of two globally endangered hammerhead sharks were examined using samples collected from a range of commercial fisheries operating along the east coast of Australia, finding no significant difference in length and age at maturity of male and female S. mokarran. Expand
Identification of Potential Essential Fish Habitats for Skates Based on Fishers’ Knowledge
This study shows that fishery-dependent data associated with fishers’ knowledge can be used to identify potential Essential Fish Habitats (EFH) for seven skate species, associated with nursery and egg deposition sites, with direct application to management. Expand
Habitat use, growth rates and dispersal patterns of juvenile scalloped hammerhead sharks Sphyrna lewini in a nursery habitat
Findings confirmed recent hypotheses that Kane'ohe Bay may be more important in providing protection from predators than in providing a plentiful source of food for juvenile S. lewini. Expand