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The California Undercurrent transports Pacific Equatorial Water (PEW) into the Southern California Bight from the eastern tropical Pacific Ocean. PEW is characterized by higher temperatures and salinities, with lower pH, representing a source of potentially corrosive (aragonite, inline image) water to the region. We use ichthyoplankton assemblages near the cores of the California Current and the California Undercurrent to determine whether PEW influenced fish diversity.

As atmospheric concentrations of CO2 rise, the pH of high-latitude oceans is predicted to decrease by 0.3 to 0.5 units by 2100. Several biological consequences of ocean acidification across this pH range have already been documented in invertebrates and tropical marine fishes. However, little work has been done examining potential responses of the temperate and boreal marine fish species that support major fisheries. In 2 experiments, we examined the growth responses of juvenile walleye pollock Theragra chalcogramma at ambient and 3 elevated CO2 levels.

Theoretical models predict that ocean acidification, caused by increased dissolved CO2, will reduce the maximum thermal limits of fishes, thereby increasing their vulnerability to rising ocean temperatures and transient heatwaves. Here, we tested this prediction in three species of damselfishes on the Great Barrier Reef, Australia. Maximum thermal limits were quantified using critical thermal maxima (CTmax) tests following acclimation to either present-day or end-of-century levels of CO2 for coral reef environments (∼500 or ∼1000 µatm, respectively).

Two of the major threats to coral reefs are increasing sea surface temperature and ocean acidification, both of which result from rising concentrations of atmospheric carbon dioxide (CO2). Recent evidence suggests that both increased water temperature and elevated levels of dissolved CO2 can change the behaviors of fishes in ways that reduce individual fitness, however the interacting effects of these variables are unknown.

Western and Central Pacific Fisheries Comission

PNGs National Plan of Action on Corals, Fish and Food Security on the Coral Triangle Initiative

Fish Image

SPC THE WESTERN AND CENTRAL PACIFIC TUNA FISHERY: 2011 OVERVIEW AND STATUS OF STOCKS Tuna Fishery Yearbook 2013.

This human health risk assessment report was publicly released in 2014, and it was aimed to discern whether the observed contamination in fish tissue is specific to Kwajalein Harbor or is part of a wider contamination problem in the RMI .

Data on Reef Fish Recovery in countries and information is also useful for Palau's Reef Fish Biomass

The Vision of the draft National Aquaculture Strategy is to: Contribute to achieving sustainable economic development in Palau through environmentally responsible aquaculture. It lays out the rationale for 5 specific objectives. The strategy was produced with assistance from the FAO.

The Nature Conservancy’s Mapping Ocean Wealth Project: Modelling and mapping fishing pressure the current and potential standing stock of coral-reef fishes in five jurisdictions of Micronesia

Data on Palau's Reef Fish including information extracted from researches on reef fish in micronesia

Data on Creel survey and demographic assessments of coastal finfish fisheries of southern Palau

Data on Vulnerability of oceanic fisheries in the tropical Pacific to climate change

PURSE SEINE fishery data compiled by the Western and Central Pacific Fisheries Commission (WCPFC). The WCPFC have compiled a public domain version of aggregated catch and effort data using operational, aggregate and annual catch estimates data provided by Commission Members (CCMs) and Cooperating Non-members (CNMs).

Data cover 1950 to 2021 and are grouped by 1°x1° latitude/longitude grids, year and month.

The data are described here:

https://www.wcpfc.int/public-domain

Tuna biomass (skipjack, albacore, yellowfin and bigeye tuna) variability over the period 1979-2010 simulated by the Spatial Ecosystem and Population Dynamics Model (SEAPODYM).

Here, we provide the unfished biomass dynamics (i.e. without considering any fishing). For each of the four tuna species we provide both the total biomass (adults + juveniles) and the larvae abundance.

This product is described in : 

Projection of tuna biomass (skipjack, albacore, yellowfin and bigeye tuna) in response to climate change simulated by the Spatial Ecosystem and Population Dynamics Model (SEAPODYM).

Marine datasets from FAO

Fisheries