All Fisheries Calculators Related Post

Migration Pattern Calculator Fish Species or Group ?Select species with well-documented migration behavior from global fisheries research. Choose species…Atlantic/Pacific Salmon (Anadromous)European/American Eel (Catadromous)American ShadAtlantic SturgeonAtlantic Bluefin Tuna (Oceanodromous)Striped MulletCustom Migration Type Migration Type ?Anadromous: ocean to river; Catadromous: river to ocean. Anadromous (Sea to River)Catadromous (River to Sea)Potamodromous (Within Freshwater)Oceanodromous (Within Ocean) Current Water Temperature […]

Spawning Season Calculator Fish Species ?Select species with known spawning temperature thresholds from scientific literature. Choose species…Atlantic SalmonRainbow TroutCommon CarpNile TilapiaLargemouth BassChannel CatfishCustom Parameters Minimum Spawning Temperature (°C) ?Lowest temperature at which spawning begins. Optimal Spawning Temperature (°C) ?Peak spawning activity. Required Degree-Days ?Cumulative heat units needed to trigger spawning. Current Water Temperature (°C) ?Today’s

Seasonal Fishing Calculator Fish Species or Group ?Select the closest match. Spawning months are based on peer-reviewed fisheries data. Choose species…Red Snapper (Gulf/Caribbean)Grouper (Nassau, Goliath)Tuna (Yellowfin, Skipjack)Salmon (Pacific)Tilapia (Tropical)Trout (Rainbow, Brown)Custom Spawning Months Spawning Peak Months (select 1–3) ?When eggs are released. Closed season should cover these months. Jan Feb Mar Apr May Jun Jul

    Fishery Closure Calculator Current Stock Biomass (% of Unfished Level) Target Recovery Level 40% – Minimum viable (many regulations)50% – BMSY (Most common scientific target)60% – Precautionary / Healthy stock80% – Near full recovery Intrinsic Growth Rate (r) – Choose species type: 0.15 – Very slow (sharks, orange roughy)0.3 – Slow (cod, snapper,

Population Rebuilding Calculator Current Population Size (N₀) ?Current depleted population (e.g., 10,000 fish, 500 trees). Target Recovery Population ?Desired healthy population level (e.g., original stock or MSY level). Intrinsic Growth Rate (r) ?Biological growth rate per year. Fish: 0.2–0.8, Trees: 0.03–0.1, Mammals: 0.1–0.4 Current Harvest Pressure ?Set to 0% for full protection (fastest recovery), or

    Recovery Time Calculator Current Biomass (% of Carrying Capacity K) Target Recovery Level (% of K) 50% – BMSY (Most Common Target)40% – Minimum for many stocks60% – Precautionary target80% – Full recovery goal Intrinsic Growth Rate (r) – typical values: 0.2 – Slow-growing species (e.g. sharks, tuna)0.4 – Moderate (e.g. cod, hake)0.6

Depletion Rate Calculator Initial Resource Stock (N₀) ?Starting population or resource quantity (e.g., fish stock in tons, trees, water volume). Current Resource Stock (Nₜ) ?Current measured quantity after time period. Time Period (years) ?Time elapsed between initial and current measurement. Harvest/Extraction Rate (optional) ?Annual removal rate (e.g., fishing, logging). Leave blank for natural depletion. Calculate

    Stock Status Calculator Assessment Method Biomass Ratio (B/Bₘₛᵧ)Fishing Mortality Ratio (F/Fₘₛᵧ)Spawning Potential Ratio (SPR %)Combined B/Bₘₛᵧ + F/Fₘₛᵧ Current Spawning Biomass B (tons or kg) Bₘₛᵧ – Biomass at Maximum Sustainable Yield Current Fishing Mortality F (year⁻¹) Fₘₛᵧ – Fishing Mortality at MSY Current Spawning Potential Ratio (SPR %) B/Bₘₛᵧ Ratio F/Fₘₛᵧ Ratio

    MSC Certification Calculator Fishery Type Wild-Capture FisheryEnhanced Fishery Principle 1: Stock Status (SG80+ required) Excellent – Well above limit reference pointGood – Above target reference pointPass – At or above limit reference pointFail – Below limit reference point Principle 2: Ecosystem Impact (SG80+ required) Minimal impact – Fully protected species safeLow risk –

    Eco-Label Calculator Product Category Cleaning ProductsTextiles & ClothingElectronic DevicesFurniturePaper ProductsCosmetics & Personal Care Recycled Content (%) Renewable Energy Used in Production (%) Water Efficiency Score (1–10) Low VOC / Chemical Safety (1–10) Packaging Recyclability (%) Carbon Footprint Reduction vs Industry Avg (%) Scoring based on: EU Ecolabel, Nordic Swan, Blue Angel, Energy Star,