Work

First Observations of Potential Iteroparity in Pacific Capelin Mallotus catervarius

Year: 2026

Type: article

Abstract: ABSTRACT Using histology to examine ovarian structures in Pacific capelin for the first time, we found biological evidence that captive, age‐1, female Pacific capelin Mallotus catervarius are capable of iteroparity (41% of mature females). Evidence of the potential to spawn over multiple years included more than one oocyte cohort, including primary growth and vitellogenic oocytes in maturing fish, or primary growth and post ovulatory follicles in spent fish.The data on iteroparity rates provide a better understanding of how fish might respond to variable or extreme environments, as a population with mixed or flexible parities may have more flexibility in spawning frequency, reproductive output, and survival.

Source: Aquaculture Fish and Fisheries

DOI: 10.1002/aff2.70224

Authors: C. Rodgveller, F. Sewall

Institutions: NOAA National Marine Fisheries Service, National Oceanic and Atmospheric Administration, NOAA National Marine Fisheries Service Alaska Fisheries Science Center

Language: English

Topic: Reproductive biology and impacts on aquatic species

Subfield: Physiology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Life below water

Open Access status: gold

Estimated APC paid: $2,200