10.6084/m9.figshare.7762730.v1
Katrin Pretterebner
Katrin
Pretterebner
Luis Miguel Pardo
Luis
Miguel Pardo
Kurt Paschke
Kurt
Paschke
Dry weight of the hepatopancreas of Lithodes santolla after the corresponding time periods at 9°C and 12°C from Temperature-dependent seminal recovery in the southern king crab <i>Lithodes santolla</i>
The Royal Society
2019
Lithodidae
reproduction
sperm depletion
vasa deferentia
crustacean
vasosomatic index
2019-02-23 06:39:25
Dataset
https://rs.figshare.com/articles/dataset/Dry_weight_of_the_hepatopancreas_of_Lithodes_santolla_after_the_corresponding_time_periods_at_9_C_and_12_C_from_Temperature-dependent_seminal_recovery_in_the_southern_king_crab_i_Lithodes_santolla_i_/7762730
Male-biased fishery management can provoke depletion of seminal reserves, which is the primary cause of sperm limitation. Therefore, identifying factors which contribute to the vulnerability to depletion of seminal reserves is a priority. The present study aimed to determine the effect of temperature on the recovery rate of sperm and seminal reserves after their depletion in <i>Lithodes santolla</i>, an important fishery resource in southern Chile. Sperm and seminal reserves were not fully recovered within 30 days. Temperature significantly affected seminal recovery: after 30 days the recovery index increased to 40% and 21% at 9°C and 12°C, respectively. The twice as fast seminal recovery at 9°C may be explained by the zone of origin of the individuals in this study (northern distributional limit), and 12°C may be close to the threshold of temperature tolerance. <i>Lithodes santolla</i> populations subject to intense male-only fisheries may be vulnerable to depletion of seminal reserves and a climate change scenario could additionally aggravate the risk of seminal depletion in <i>L. santolla</i> in its northern distributional limit.