Japanese Spanish mackerel ( Scomberomorus niphonius ) is an important fish species in the China Seas with wide distribution, extensive migration, and high economic value. This has been yielding fisheries production despite experiencing continuously fishing pressure conversion from gillnet to trawl harvesting. Meanwhile, changes life-history traits have observed, including earlier maturation sma...

A new gillnet made from multiple mesh sizes ranging 125 to 180 mm of stretched (experimental gillnet) was tested under commercial fishing conditions compare the performance with that conventional gillnets a opening (control gillnet). Catch efficiency and size selectivity between two types were evaluated throughout one year in three different locations waters Vietnam. Experimental caught narrow-...

Report title: Design and Test of a Low Profile Gillnet to reduce Atlantic Sturgeon and Sea Turtle By-catch in Mid-Atlantic Monkfish Fishery Key project partners: Rick Usher, A.I.S. Inc. Pingguo He, UMass Dartmouth – SMAST Funding Agency: NOAA Fisheries NOAA Contract No.: EA133F-12-SE-2094 Recipient name: A.I.S. Inc. New Bedford, MA NOAA COR: Henry Milliken Report by: Pingguo He and Natalie Jone...

Activities of fishermen in the Bay of La Paz, B. C. S. are focused to satisfy the local demand of fish and shellfish by using approximately 300 small outboard crafts equipped with gillnets. Sea lions in this Bay attack the fishes captured damaging both product and gear. We did experimental gillnet throws to determine the frequency and preferences of sea lions in fishing areas. 52 experimental g...

Most sharks, rays and chimaeras (chondrichthyans) taken in commercial fisheries are discarded (i.e. returned to the ocean either dead or alive). Quantifying the post-capture survival (PCS) of discarded species is therefore essential for the improved management and conservation of this group. For all chondrichthyans taken in the main shark fishery of Australia, we quantified the immediate PCS of...

Bycatch of protected species in commercial fishing operations is a primary concern to fishery managers because it threatens the conservation, protection, and recovery of fragile species, such as the Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus). One potential solution to reduce the risk associated with commercial fishing operations is to design commercial fishing gear that is more selecti...

Marine mammals and sea turtles in the United States are protected from commercial fishery interactions under the Marine Mammal Protection Act and the Endangered Species Act. To reduce harbor porpoise bycatch in the northeast sink gillnet fishery, fishermen are mandated to attach pingers to their nets in regulated areas. Although, pinger regulations have been in place for over a decade, in pract...

Harbor seals and gray seals are sympatric phocid pinnipeds found in coastal waters of the temperate and sub-Arctic North Atlantic. In the Northwest Atlantic, both species were depleted through a combination of subsistence hunts and government supported bounties, and are now re-occupying substantial portions of their original ranges. While both species appear to have recovered during the past 2 ...