Field observations reveal putative mating behavior and young-of-the-year banded guitarfish in a marine reserve, suggesting geographic and reproductive range expansion.
Reports of reproductive events in wild elasmobranchs are rare, yet provide valuable information while planning conservation measures. This is the first record of two mature banded guitarfish Zapteryx exasperata engaging in putative mating behavior, as well as two suspected young–of–the–year specimens, inside a marine protected area in Southern California. When integrated with previous records, these findings strengthen the hypothesis that the species may be expanding both its geographic range and life history behaviors within the United States, stressing the need for further investigation as to how it utilizes the region and assess the efficacy of current management practices in preserving its declining population.
No takes yet. Share an insight, caveat, or question.
V. Bach Muñoz (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: